List of Japanese inventions and discoveries

This is a list of Japanese inventions and discoveries. The Japanese have made contributions across a number of scientific and technological domains. In particular, the country has played a crucial role in the digital revolution since the 20th century, with many modern revolutionary and widespread technologies in fields such as electronics and robotics introduced by Japanese inventors and entrepreneurs.

Arts

Comic book: Adam L. Kern has suggested that kibyoshi, picture books from the late 18th century, may have been the world's first comic books. These graphical narratives share with modern manga humorous, satirical, and romantic themes.[1] Some works were mass-produced as serials using woodblock printing.[2]

Manga: The history of manga has origins in scrolls dating back to the 12th century, and it is believed they represent the basis for the right-to-left reading style. During the Edo period (1603-1867), Toba Ehon embedded the concept of manga.[3] The word itself first came into common usage in 1798,[4] with the publication of works such as Santō Kyōden's picturebook Shiji no yukikai (1798),[5][6] and in the early 19th century with such works as Aikawa Minwa's Manga hyakujo (1814) and the Hokusai Manga books (1814–1834).[7][1]

Revolving stage

Invented for the Kabuki theatre in Japan in the 18th century, the revolving stage was introduced into Western theater at the Residenz theatre in Munich in 1896 under the influence of japonism fever.[8]

Film and animation

Anime: Japanese animation, or anime, today widely popular both in Japan and abroad, began in the early 20th century.

Man with No Name: A stock character that originated with Akira Kurosawa's Yojimbo (1961), where the archetype was first portrayed by Toshirō Mifune. The archetype was adapted by Sergio Leone for his Spaghetti Western Dollars Trilogy (1964-1966), with Clint Eastwood playing the role of the "Man with Noin Japan. The first depiction of mecha Super Robots being piloted by a user from within a cockpit was introduced in the manga and anime series Mazinger Z by Go Nagai in 1972.[9]

Postcyberpunk animation/film: The first postcyberpunk media work in an animated/film format was Ghost in the Shell: Stand Alone Complex in 2002. It has been called "the most interesting, sustained postcyberpunk media work in existence."[10]

Steampunk animation: The earliest examples of steampunk animation are Hayao Miyazaki's anime works Future Boy Conan (1978),[11] Nausicaä of the Valley of the Wind (1984)[12] and Castle in the Sky (1986).[13][14]

Superflat: A postmodern art form, founded by the artist Takashi Murakami, which is influenced by manga and anime.[15]

Architecture

Nagoya Castle

Japanese castle: Fortresses constructed primarily out of stone and wood used for military defence in strategic locations.[16]

Metabolism: A post-war Japanese architectural movement developed by a wide variety of Japanese architects including Kiyonori Kikutake, Kisho Kurokawa and Fumihiko Maki, Metabolism aimed to fuse ideas about architectural megastructures with those of organic biological growth.[17]

Tahōtō: Tahōtō is a form of Japanese pagoda found primarily at Esoteric Shingon and Tendai school Buddhist temples. Unlike most pagodas, it has two stories.[18]

Ceramics

Imari porcelain: Imari porcelain or Arita-yaki is a type of Japanese porcelain made in the town of Arita. It was widely exported from the port of Imari, Saga to Europe during the 17th and 18th centuries.[19]

Atmospheric sciences

Downburst: Downbursts, strong ground-level wind systems that emanate from a point above and blow radially, were discovered by Ted Fujita.[20]

Fujita scale: The first scale designed to measure tornado intensity, the Fujita scale, was first introduced by Ted Fujita (in collaboration with Allen Pearson) in 1971. The scale was widely adopted throughout the world until the development of the Enhanced Fujita scale.[21]

Fujiwhara effect: The Fujiwhara effect is an atmospheric phenomenon where two nearby cyclonic vortices orbit each other and close the distance between the circulations of their corresponding low-pressure areas. The effect was first described by Sakuhei Fujiwhara in 1921.[22]

Jet stream: Jet streams were first discovered by Japanese meteorologist Wasaburo Oishi by tracking ceiling balloons. However, Oishi's work largely went unnoticed outside Japan because it was published in Esperanto.[23][24]

Microburst: The microburst was first discovered and identified as a small scale downburst affecting an area 4 km (2.5 mi) in diameter or less by Ted Fujita in 1974. Microbursts are recognized as capable of generating wind speeds higher than 270 km/h (170 mph). In addition, Fujita also discovered macrobursts and classified them as downbursts larger than 4 km (2.5 mi).[20]

Sports

Drifting competition: In 1988, Keiichi Tsuchiya alongside Option magazine founder and chief editor Daijiro Inada organised the first contest specifically for sliding a car sideways. In 1996, Option organized the first contest outside Japan[25] which began to spread to other countries.

Ekiden (Road Relay)

Gateball

Keirin: Started as a gambling sport in 1948 and became an Olympic sport in 2000.

Martial arts

All-Japan Judo Championships, 2007 men's final.

Aikido: Aikido was created and developed by Morihei Ueshiba in first half of the 20th century.

Judo: It was created as a physical, mental and moral pedagogy in Japan, in 1882, by Kanō Jigorō.[26]

Jujutsu: Jujutsu, the "way of yielding", is a collective name for Japanese martial art styles including unarmed and armed techniques. Jujutsu evolved among the samurai of feudal Japan as a method for defeating an armed and armored opponent without weapons. Due to the ineffectiveness of striking against an armored opponent, the most efficient methods for neutralizing an enemy took the form of pins, joint locks, and throws. These techniques were developed around the principle of using an attacker's energy against him, rather than directly opposing it.[27]

Karate: It began as a common fighting system known as "ti" (or "te") among the pechin class of the Ryukyuans. There were few formal styles of ti, but rather many practitioners with their own methods. One surviving example is the Motobu-ryū school passed down from the Motobu family by Seikichi Uehara.[28] Early styles of karate are often generalized as Shuri-te, Naha-te, and Tomari-te, named after the three cities from which they emerged.[29]

Kendo

Ninjutsu: Developed by groups of people mainly from the Iga Province and Kōka, Shiga of Japan. Throughout history, many different schools (ryū) have taught their unique versions of ninjutsu. An example of these is the Togakure-ryū. This ryū was developed after a defeated samurai warrior called Daisuke Togakure escaped to the region of Iga. Later he came in contact with the warrior-monk Kain Doshi who taught him a new way of viewing life and the means of survival (ninjutsu).[30]

Okinawan martial arts: In the 14th century, when the three kingdoms on Okinawa (Chūzan, Hokuzan, and Nanzan) entered into a tributary relationship with the Ming Dynasty of China, Chinese Imperial envoys and other Chinese arrived, some of whom taught Chinese Chuan Fa (Kempo) to the Okinawans. The Okinawans combined Chinese Chuan Fa with the existing martial art of Te to form Tō-de (唐手, Okinawan: Tū-dī, Tang hand), sometimes called Okinawa-te (沖縄手).[31] By the 18th century, different types of Te had developed in three different villages - Naha, Shuri, and Tomari. The styles were named Naha-te, Shuri-te, and Tomari-te, respectively. Practitioners from these three villages went on to develop modern karate.[32]

Sumo

Sumo is said to have started in the Heian period (794-1192). The imperial family watches sumo as a form of entertainment. It has evolved over the centuries with professional sumo wrestlers appearing in the Edo period (1603-1868).[33] The word sumo is written with the Chinese characters or Kanji of “mutual bruising."[34]

Video games

Controller of the PlayStation 2, the best-selling video game console of all time.

Playing Dance Dance Revolution, one of the most successful rhythm games.

PlayStation: The Sony PlayStation was invented by Ken Kutaragi. Research and development for the PlayStation began in 1990, headed by Kutaragi, a Microsoft engineer.[35] However, many foreigners also contributed significantly to many of the PlayStation consoles, such as the American designer Mark Cerny.

Nintendo: Gunpei Yokoi was the creator of the Game Boy and Virtual Boy and worked on Famicom (and NES), the Metroid series, Game Boy Pocket and did extensive work on the system we know today as the Nintendo Entertainment System. This changed children and adults alike' s free time.[36]

Active Time Battle: Hiroyuki Ito introduced the "Active Time Battle" system in Final Fantasy IV (1991),[37] where the time-keeping system does not stop.[38] Square Co., Ltd. filed a United States patent application for the ATB system on March 16, 1992, under the title "Video game apparatus, method and device for controlling same" and was awarded the patent on February 21, 1995. On the battle screen, each character has an ATB meter that gradually fills, and the player is allowed to issue a command to that character once the meter is full.[39] The fact that enemies can attack or be attacked at any time is credited with injecting urgency and excitement into the combat system.[38]

Beat 'em up: The first game to feature fist fighting was Sega's boxing game Heavyweight Champ (1976), but it was Data East's fighting game Karate Champ (1984) which popularized martial arts themed games.[40] The same year, Hong Kong cinema-inspired Kung-Fu Master laid the foundations for scrolling beat 'em ups with its simple gameplay and multiple enemies.[40][41] Nekketsu Kōha Kunio-kun, released in 1986 in Japan, deviated from the martial arts themes of earlier games and introduced street brawling to the genre. Renegade (released the same year) added an underworld revenge plot that proved more popular with gamers than the principled combat sport of other games.[42] Renegade set the standard for future beat 'em up games as it introduced the ability to move both horizontally and vertically.[43]

Bullet hell: The bullet hell or danmaku genre began to emerge in the early 1990s as 2D developers needed to find a way to compete with 3D games which were becoming increasingly popular at the time. Toaplan's Batsugun (1993) is considered to be the ancestor of the modern bullet hell genre.[44] The Touhou Project series is one of the most popular bullet hell franchises.

Fighting game: Sega's black and white boxing game Heavyweight Champ was released in 1976 as the first video game to feature fist fighting.[45] However, Data East's Karate Champ from 1984 is credited with establishing and popularizing the one-on-one fighting game genre, and went on to influence Konami's Yie Ar Kung-Fu from 1985.[46] Yie Ar Kung Fu expanded on Karate Champ by pitting the player against a variety of opponents, each with a unique appearance and fighting style.[46][47] Capcom's Street Fighter (1987) introduced the use of special moves that could only be discovered by experimenting with the game controls. Street Fighter II (1991) established the conventions of the fighting game genre and, whereas previous games allowed players to combat computer-controlled fighters, Street Fighter II allowed players to play against each other.[48]

Platform game: Space Panic, a 1980 arcade release, is sometimes credited as the first platform game.[49] It was clearly an influence on the genre, with gameplay centered on climbing ladders between different floors, a common element in many early platform games. Donkey Kong, an arcade game created by Nintendo, released in July 1981, was the first game that allowed players to jump over obstacles and across gaps, making it the first true platformer.[50]

Psychological horror game: Silent Hill (1999) was praised for moving away survival horror games from B movie horror elements to the psychological style seen in art house or Japanese horror films,[51] due to the game's emphasis on a disturbing atmosphere rather than visceral horror.[52] The original Silent Hill is considered one of the scariest games of all time,[53] and the strong narrative from Silent Hill 2 in 2001 has made the series one of the most influential in the genre.[54] Fatal Frame from 2001 was a unique entry into the genre, as the player explores a mansion and takes photographs of ghosts in order to defeat them.[55][56]

Rhythm game: Dance Aerobics was released in 1987, and allowed players to create music by stepping on Nintendo's Power Pad peripheral. It has been called the first rhythm-action game in retrospect,[57] although the 1996 title PaRappa the Rapper has also been deemed the first rhythm game, whose basic template forms the core of subsequent games in the genre. In 1997, Konami's Beatmania sparked an emergent market for rhythm games in Japan. The company's music division, Bemani, released a number of music games over the next several years.

Scrolling platformer: The first platform game to use scrolling graphics was Jump Bug (1981), a simple platform-shooter developed by Alpha Denshi.[58] In August 1982, Taito released Jungle King,[59] which featured scrolling jump and run sequences that had players hopping over obstacles. Namco took the scrolling platformer a step further with the 1984 release Pac-Land. Pac-Land came after the genre had a few years to develop, and was an evolution of earlier platform games, aspiring to be more than a simple game of hurdle jumping, like some of its predecessors.[60] It closely resembled later scrolling platformers like Wonder Boy and Super Mario Bros and was probably a direct influence on them. It also had multi-layered parallax scrolling.[61][62]

Shoot 'em up: Space Invaders is frequently cited as the "first" or "original" in the genre.[63][64] Space Invaders pitted the player against multiple enemies descending from the top of the screen at a constantly increasing rate of speed.[64] As with subsequent shoot 'em ups of the time, the game was set in space as the available technology only permitted a black background. The game also introduced the idea of giving the player a number of "lives". Space Invaders was a massive commercial success, causing a coin shortage in Japan.[65][66] The following year, Namco's Galaxian took the genre further with more complex enemy patterns and richer graphics.[63][67]

Stealth game: The first stealth-based videogame was Hiroshi Suzuki's Manbiki Shounen (1979). The first commercially successful stealth game was Hideo Kojima's Metal Gear (1987), the first in the Metal Gear series. It was followed by Metal Gear 2: Solid Snake (1990) which significantly expanded the genre, and then Metal Gear Solid (1998).

Survival horror: The term survival horror was coined by Capcom's Resident Evil (1996) and definitely defined that genre.[68][69] The game was inspired by Capcom's earlier horror game Sweet Home (1989).[70] The earliest survival horror game was Nostromo, developed by Akira Takiguchi (a Tokyo University student and Taito contractor) for the PET 2001 and published by ASCII for the PC-6001 in 1981.[71]

Visual novel: The visual novel genre is a type of Interactive fiction developed in Japan in the early 1990s. As the name suggests, visual novels typically have limited interactivity, as most player interaction is restricted to clicking text and graphics.[72]

Philosophy

Lean manufacturing: A generic process management philosophy derived mostly from the Toyota Production System (TPS) (hence the term Toyotism is also prevalent) and identified as "Lean" only in the 1990s.[73][74]

Biology, chemistry, and biomedical science

Image from "Surgical Casebook" (Kishitsu geryō zukan) by Hanaoka Seishu

Agar: Agar was discovered in Japan around 1658 by Mino Tarōzaemon.[75]

Aspergillus oryzae: The genome for Aspergillus oryzae was sequenced and released by a consortium of Japanese biotechnology companies,[76] in late 2005.[77]

CRISPR: Yoshizumi Ishino discovered CRISPR in 1987.[78]

Ephedrine synthesis: Ephedrine in its natural form, known as má huáng (麻黄) in traditional Chinese medicine, had been documented in China since the Han dynasty.[79] However, it was not until 1885 that the chemical synthesis of ephedrine was first accomplished by Japanese organic chemist Nagai Nagayoshi.

Epinephrine (Adrenaline): Japanese chemist Jōkichi Takamine and his assistant Keizo Uenaka first discovered epinephrine in 1900.[80][81] In 1901 Takamine successfully isolated and purified the hormone from the adrenal glands of sheep and oxen.[82]

Esophagogastroduodenoscope: Mutsuo Sugiura was a Japanese engineer famous for being the first to develop a Gastro-camera (a present-day Esophagogastroduodenoscope). His story was illustrated in the NHK TV documentary feature, "Project X: Challengers: The Development of a Gastro-camera Wholly Made in Japan". Sugiura graduated from Tokyo Polytechnic University in 1938 and then joined Olympus Corporation. While working at this company, he first developed an esophagogastroduodenoscope in 1950.

Frontier molecular orbital theory: Kenichi Fukui developed and published a paper on Frontier molecular orbital theory in 1952.[83]

General anesthesia: Hanaoka Seishū was the first surgeon in the world who used the general anaesthesia in surgery, in 1804, and who dared to operate on cancers of the breast and oropharynx, to remove necrotic bone, and to perform amputations of the extremities in Japan.[84]

Immunoglobulin E (IgE): Immunoglobulin E is a type of antibody only found in mammals. IgE was simultaneously discovered in 1966-7 by two independent groups:[85] Kimishige Ishizaka's team at the Children's Asthma Research Institute and Hospital in Denver, Colorado,[86] and by Gunnar Johansson and Hans Bennich in Uppsala, Sweden.[87] Their joint paper was published in April 1969.[88]

Induced pluripotent stem cell: The induced pluripotent stem cell (iPSCs) is a kind of pluripotent stem cell which can be created using a mature cell. iPSCs technology was developed by Shinya Yamanaka and his lab workers in 2006.[89]

Methamphetamine

Chemical structure of methamphetamine.

Methamphetamine was first synthesized from ephedrine in Japan in 1894 by chemist Nagayoshi Nagai.[90] In 1919, methamphetamine hydrochloride was synthesized by pharmacologist Akira Ogata.[91]

Nihonium: Element 113. Named after Nihon, the local name for Japan.

Okazaki fragment: Okazaki fragments are short, newly synthesized DNA fragments that are formed on the lagging template strand during DNA replication. They are complementary to the lagging template strand, together forming short double-stranded DNA sections. A series of experiments led to the discovery of Okazaki fragments. The experiments were conducted during the 1960s by Reiji Okazaki, Tsuneko Okazaki, Kiwako Sakabe, and their colleagues during their research on DNA replication of Escherichia coli.[92] In 1966, Kiwako Sakabe and Reiji Okazaki first showed that DNA replication was a discontinuous process involving fragments.[93] The fragments were further investigated by the researchers and their colleagues through their research including the study on bacteriophage DNA replication in Escherichia coli.[94][95]

Photocatalysis: Akira Fujishima discovered photocatalysis occurring on the surface of titanium dioxide in 1967.[96]

Pulse oximetry: Pulse oximetry was developed in 1972, by Takuo Aoyagi and Michio Kishi, bioengineers, at Nihon Kohden using the ratio of red to infrared light absorption of pulsating components at the measuring site. Susumu Nakajima, a surgeon, and his associates first tested the device in patients, reporting it in 1975.[97]

Portable electrocardiograph: Taro Takemi built the first portable electrocardiograph in 1937.[98]

Statin: The statin class of drugs was first discovered by Akira Endo, a Japanese biochemist working for the pharmaceutical company Sankyo. Mevastatin was the first discovered member of the statin class.[99]

Takadiastase: A form of diastase which results from the growth, development and nutrition of a distinct microscopic fungus known as Aspergillus oryzae. Jōkichi Takamine developed the method first used for its extraction in the late 19th century.[100]

Thiamine (Vitamin B₁): Thiamine was the first of the water-soluble vitamins to be described,[101] leading to the discovery of more such trace compounds essential for survival and to the notion of vitamin. It was not until 1884 that Kanehiro Takaki (1849-1920) attributed beriberi to insufficient nitrogen intake (protein deficiency). In 1910, Japanese scientist Umetaro Suzuki succeeded in extracting a water-soluble complex of micronutrients from rice bran and named it aberic acid. He published this discovery in a Japanese scientific journal.[102] The Polish biochemist Kazimierz Funk later proposed the complex be named "Vitamine" (a portmanteau of "vital amine") in 1912.[103]

Urushiol: Urushiol, a mixture of alkyl catechols, was discovered by Rikou Majima. Majima also discovered that Urushiol was an allergen which gave members of the genus Toxicodendron, such as poison ivy and poison oak, their skin-irritating properties.[104]

Vectorcardiography: Taro Takemi invented the vectorcardiograph in 1939.[98]

Finance

Futures contract: The first futures exchange market was the Dōjima Rice Exchange in Japan in the 1730s.[105]

Candlestick chart: Candlestick charts have been developed in the 18th century by Munehisa Homma, a Japanese rice trader of financial instruments. They were introduced to the Western world by Steve Nison in his book, Japanese Candlestick Charting Techniques.

Food and food science

Instant noodles before boiling.

Instant noodle: Invented by Momofuku Ando, a Taiwanese-Japanese inventor, in 1958.[106]
Monosodium glutamate: Invented and patented by Kikunae Ikeda.[107]

Umami: Umami as a separate taste was first identified in 1908 by Kikunae Ikeda of the Tokyo Imperial University while researching the strong flavor in seaweed broth.[108]

Fortune cookie: Although popular in Western Chinese restaurants, fortune cookies did not originate in China and are in fact rare there. They most likely originated from cookies made by Japanese immigrants to the United States in the late 19th or early 20th century. The Japanese version had a fortune, but not lucky numbers, and was commonly eaten with tea.[109]

Mathematics

A page from Seki Kōwa's Katsuyo Sampo (1712), tabulating binomial coefficients and Bernoulli numbers

Bernoulli number: Studied by Seki Kōwa and published after his death, in 1712. Jacob Bernoulli independently developed the concept in the same period, though his work was published a year later.[110][111][112]

Determinant: In Japan, determinants were introduced to study elimination of variables in systems of higher-order algebraic equations. They used it to give shorthand representation for the resultant. The determinant as an independent function was first studied by Seki Kōwa in 1683.[112][113]

Elimination theory: In 1683 (Kai-Fukudai-no-Hō), Seki Kōwa came up with elimination theory, based on resultant.[113] To express resultant, he developed the notion of determinant.[113]

Hironaka's example: Hironaka's example is a non-Kähler complex manifold that is a deformation of Kähler manifolds discovered by Heisuke Hironaka.[114]

Itô calculus: Developed by Kiyosi Itô throughout the 20th century, Itô calculus extends calculus to stochastic processes such as Brownian motion (Wiener process). Its basic concept is the Itô integral, and among the most important results is a change of variable formula known as Itô's lemma. Itô calculus is widely applied in various fields, but is perhaps best known for its use in mathematical finance.[115]

Iwasawa theory and the Main conjecture of Iwasawa theory: Initially created by Kenkichi Iwasawa, Iwasawa theory was originally developed as a Galois module theory of ideal class groups. The main conjecture of Iwasawa theory is a deep relationship between p-adic L-functions and ideal class groups of cyclotomic fields, proved by Iwasawa (1969) for primes satisfying the Kummer–Vandiver conjecture and proved for all primes by Mazur and Wiles (1984).[116]

Resultant: In 1683 (Kai-Fukudai-no-Hō), Seki Kōwa came up with elimination theory, based on resultant. To express resultant, he developed the notion of determinant.[113]

Sangaku: Japanese geometrical puzzles in Euclidean geometry on wooden tablets created during the Edo period (1603–1867) by members of all social classes. The Dutch Japanologist Isaac Titsingh first introduced sangaku to the West when he returned to Europe in the late 1790s after more than twenty years in the Far East.[117]

Soddy's hexlet: Irisawa Shintarō Hiroatsu analyzed Soddy's hexlet in a Sangaku in 1822 and was the first person to do so.[118]

Takagi existence theorem: Takagi existence theorem was developed by Teiji Takagi in isolation during World War I. He presented it at the International Congress of Mathematicians in 1920.[119]

Physics

Bottom quark: The bottom quark along with the top quark was first theorized in 1973 by physicists Makoto Kobayashi and Toshihide Maskawa to explain CP violation.[120]

Cabibbo–Kobayashi–Maskawa matrix: Building off the work of Nicola Cabibbo, Makoto Kobayashi and Toshihide Maskawa introduced the Cabibbo–Kobayashi–Maskawa matrix which introduced for three generations of quarks. In 2008, Kobayashi and Maskawa shared one half of the Nobel Prize in Physics "for the discovery of the origin of the broken symmetry which predicts the existence of at least three families of quarks in nature".[121]

Meson: Hideki Yukawa predicted the existence and the approximate mass of the "meson" as the carrier of the nuclear force that holds atomic nuclei together in 1934.[122]

Nagaoka model (first Saturnian model of the atom): In 1904, Hantaro Nagaoka proposed the first planetary model of the atom as an alternative to J. J. Thomson's plum pudding model. Ernest Rutherford and Niels Bohr would later develop the more viable Bohr model in 1913.[123]

Sakata model: The Sakata model was a precursor to the quark model proposed by Shoichi Sakata in 1956.[124]

Tetraquark: In 2013, Zc(3900), the first confirmed tetraquark, was independently and simultaneously discovered by a team in Japan and China.[125]

Top quark: The top quark along with the bottom quark was first theorized in 1973 by physicists Makoto Kobayashi and Toshihide Maskawa to explain CP violation.[120]

Technology

Airsoft: Airsoft originated in Japan, then spread to Hong Kong and China in the late 1970s.[126] The inventor of the first airsoft gun is Tanio Kobayashi.

Blue laser: In 1992 Japanese inventor Shuji Nakamura invented the first efficient blue LED.[127]

Camera phone: The world's first camera phone (it also had a real-time-video-call functionality. It could send an email with a picture), the VP-210, was developed by Kyocera in 1999.[128]

TV Watch: The world's first TV watch, the TV-Watch, was developed by Seiko in 1982.[129]

Japanese typewriter: The first typewriter to be based on the Japanese writing system was invented by Kyota Sugimoto in 1929.[130]

KS steel: Magnetic resistant steel that is three times more resistant than tungsten steel, invented by Kotaro Honda.[131]

MKM steel: MKM steel, an alloy containing nickel and aluminum, was developed in 1931 by the Japanese metallurgist Tokuhichi Mishima.[132][133]

Neodymium magnet: Neodymium magnets were invented independently in 1982 by General Motors (GM) and Sumitomo Special Metals.[134]

QR code for the URL of the English Wikipedia Mobile main page

Double-coil bulb

In 1921, Junichi Miura created the first double-coil bulb using a coiled coil tungsten filament while working for Hakunetsusha (a predecessor of Toshiba). At the time, machinery to mass-produce coiled coil filaments did not exist. Hakunetsusha developed a method to mass-produce coiled coil filaments by 1936.[135]

QR code

The QR code, a type of matrix barcode, was invented by Denso Wave in 1994.[136]

Tactile paving: The original tactile paving was developed by Seiichi Miyake in 1965.[137] The paving was first introduced in a street in Okayama city, Japan, in 1967. Its use gradually spread in Japan and then around the world.

Audio technology

Sony Discman D121

Compact Disc player: Sony released the world's first CD Player, called the CDP-101,[138] in 1982, using a slide-out tray design for the Compact Disc.

Physical modelling synthesis: The first commercially available physical modelling synthesizer was Yamaha's VL-1 in 1994.[139]

Commercial digital recording: Commercial digital recording was pioneered in Japan by NHK and Nippon Columbia, also known as Denon, in the 1960s. The first commercial digital recordings were released in 1971.[140]

Karaoke: There are various disputes about who first invented the name karaoke (a Japanese word meaning "empty orchestra"). One claim is that the karaoke styled machine was invented by Japanese musician Daisuke Inoue[141] in Kobe, Japan, in 1971.[142][143]

Portable CD player: Sony's Discman, released in 1984, was the first portable CD player.[144]

Perpendicular recording: Perpendicular recording was first demonstrated in the late 19th century by Danish scientist Valdemar Poulsen, who was also the first person to demonstrate that sound could be recorded magnetically. There weren’t many advances in perpendicular recording until 1976 when Dr. Shun-ichi Iwasaki (president of the Tohoku Institute of Technology in Japan) verified the distinct density advantages in perpendicular recording. Then in 1978, Dr. T. Fujiwara began an intensive research and development program at the Toshiba Corporation that eventually resulted in the perfection of floppy disk media optimized for perpendicular recording and the first commercially available magnetic storage devices using the technique.[145]

Digital audio tape recorder: In 1971, Heitaro Nakajima resigned from his post as head of NHK's Technical Research Laboratories and joined Sony. Four years earlier at NHK, Nakajima had commenced work on the digitization of sound and within two years had developed the first digital audio tape recorder.[146]

Direct-drive turntable: Invented by Shuichi Obata, an engineer at Matsushita (now Panasonic),[147] based in Osaka.[148] In 1969, Matsushita released it as the SP-10, the first in their influential Technics series of turntables.[149] The Technics SL-1100, released in 1971, was adopted by early hip hop DJs for turntablism,[149] and the SL-1200 is still widely used by dance and hip hop DJs.[148]

Fully programmable drum machine: The Roland TR-808, also known as the 808, introduced by Roland in 1980, was the first fully programmable drum machine. It was the first drum machine with the ability to program an entire percussion track from beginning to end, complete with breaks and rolls.[150] Created by Ikutaro Kakehashi, the 808 has been fundamental to hip hop music and electronic dance music since the 1980s,[151] making it one of the most influential inventions in popular music.[152][153]

Phaser effects pedal: In 1968, Shin-ei's Uni-Vibe effects pedal, designed by audio engineer Fumio Mieda, incorporated phase shift and chorus effects, soon becoming favorite effects of guitarists such as Jimi Hendrix and Robin Trower.[154]

Vowel-Consonant synthesis: A type of hybrid Digital-analogue synthesis first employed by the early Casiotone keyboards in the early 1980s.

Batteries

Lithium-ion battery

Akira Yoshino invented the modern li-ion battery in 1985. In 1991, Sony and Asahi Kasei released the first commercial lithium-ion battery using Yoshino's design.[155]

Dry cell

The world's first dry-battery was invented in Japan during the Meiji Era. The inventor was Sakizou Yai. Unfortunately, the company Yai founded no longer exists[156]

Calculators

Pocket calculator: The first portable calculators appeared in Japan in 1970, and were soon marketed around the world. These included the Sanyo ICC-0081 "Mini Calculator", the Canon Pocketronic, and the Sharp QT-8B "micro Compet". Sharp put in great efforts in size and power reduction and introduced in January 1971 the Sharp EL-8, also marketed as the Facit 1111, which was close to being a pocket calculator. It weighed about one pound, had a vacuum fluorescent display, and rechargeable NiCad batteries. The first truly pocket-sized electronic calculator was the Busicom LE-120A "HANDY", which was marketed early in 1971.[157]

Cameras

Digital single-lens reflex camera: On August 25, 1981 Sony unveiled a prototype of the first still video camera, the Sony Mavica. This camera was an analog electronic camera that featured interchangeable lenses and a SLR viewfinder. At photokina in 1986, Nikon revealed a prototype analog electronic still SLR camera, the Nikon SVC, the first digital SLR. The prototype body shared many features with the N8008.[158]
Portapak: In 1967, Sony unveiled the first self-contained video tape analog recording system that was portable.[159]

Chindōgu

Chindōgu is the Japanese art of inventing ingenious everyday gadgets that, on the face of it, seem like an ideal solution to a particular problem. However, Chindōgu has a distinctive feature: anyone actually attempting to use one of these inventions would find that it causes so many new problems, or such significant social embarrassment, that effectively it has no utility whatsoever. Thus, Chindōgu are sometimes described as "unuseless" – that is, they cannot be regarded as 'useless' in an absolute sense, since they do actually solve a problem; however, in practical terms, they cannot positively be called "useful." The term "Chindōgu" was coined by Kenji Kawakami.

Domestic appliances

Bladeless fan: The first bladeless fan was patented by Toshiba in 1981.[160]

Electric rice cooker

Bread machine: The bread machine was developed and released in Japan in 1986 by the Matsushita Electric Industrial Company.

Electric rice cooker: Invented by designers at the Toshiba Corporation in the late 1940s.[161]

RFIQin: An automatic cooking device, invented by Mamoru Imura and patented in 2007.[162][163]

Electronics

Sony U-matic cassette recorder tape

16-bit microprocessor: The first single-chip 16-bit microprocessors were the NEC μCOM-16 (1974)[164] and the Panafacom MN1610 (1975).[165][166]

Avalanche photodiode: Invented by Jun-ichi Nishizawa in 1952.[167]

Continuous wave semiconductor laser: Invented by Izuo Hayashi and Morton B. Panish in 1970. This led directly to the light sources in fiber-optic communication, laser printers, barcode readers, and optical disc drives, technologies that were commercialized by Japanese entrepreneurs.[168]^:252

Digital system design, and digital computer theory: In the 1930s, NEC engineer Akira Nakashima laid the foundations for digital system design with his switching circuit theory, where formulated a two-valued Boolean algebra as a way to analyze and design circuits by algebraic means in terms of logic gates. His switching circuit theory provided the mathematical foundations and tools for digital system design in almost all areas of modern technology, and was the basis for digital computer theory.[169][170]

Fiber-optic communication: While working at Tohoku University, Jun-ichi Nishizawa proposed the use of optical fibers for optical communication, in 1963.[171] Nishizawa invented other technologies that contributed to the development of optical fiber communications, such as the graded-index optical fiber as a channel for transmitting light from semiconductor lasers.[172][173] Izuo Hayashi's invention of the continuous wave semiconductor laser in 1970 led directly to light sources in fiber-optic communication, commercialized by Japanese entrepreneurs.[168]

Glass integrated circuit: Shunpei Yamazaki invented an integrated circuit made entirely from glass and with an 8-bit central processing unit.[174]

JFET (junction gate field-effect transistor): The first type of JFET was the static induction transistor (SIT), invented by Japanese engineers Jun-ichi Nishizawa and Y. Watanabe in 1950. The SIT is a type of JFET with a short channel length.[175]

Laptop: Despite that Adam Osborne announced the "first laptop/notebook" called Osborne 1 but it is now called a luggable portable computer along with other protable computers such as IBM 5100.[176][177] Yukio Yokozawa, an employee for Suwa Seikosha, a branch of Seiko (now Seiko Epson), invented the first laptop/notebook computer in July 1980, receiving a patent for the invention.[178] Seiko's notebook computer, known as the HC-20 in Japan, was announced in 1981.[179] In North America, Epson introduced it as the Epson HX-20 in 1981, at the COMDEX computer show in Las Vegas, where it drew significant attention for its portability.[180] It had a mass-market release in July 1982, as the HC-20 in Japan[179] and as the Epson HX-20 in North America.[181] It was the first notebook-sized handheld computer,[182][179][181] the size of an A4 notebook and weighing 1.6 kg (3.5 lb).[179] In 1983, the Sharp PC-5000[183] and Ampere WS-1 laptops from Japan featured a modern clamshell design.[184][185]

Microcomputer: The first microcomputer was Sord Computer Corporation's SMP80/08,[186] developed in 1972, using the 8-bit Intel 8008 microprocessor.[187]

Microcomputer for Automotive Engine

Toshiba developed a close relationship with Ford for the supply of rectifier diodes for automobile AC alternators. In March 1971, Ford unexpectedly sent a set bulky
specifications asking Toshiba to join a project to make an electronic engine control (EEC) in response to US Clean Air Act (sometimes known as the Muskie Act).[188]

Microprocessor: The concept of a single-chip microprocessor central processing unit (CPU) was conceived in a 1968 meeting in Japan between Sharp engineer Tadashi Sasaki and a software engineering researcher from Nara Women's College. Sasaki discussed the microprocessor concept with Busicom and Intel in 1968.[189] The first commercial microprocessor, the 4-bit Intel 4004, began with the "Busicom Project"[190] in 1968 as Masatoshi Shima's three-chip CPU design,[191][190] which was simplified down to a single-chip microprocessor, designed from 1969 to 1970 by Intel's Marcian Hoff and Federico Faggin and Busicom's Masatoshi Shima, and commercially released in 1971.[190][192]

Optical communication: Hardware elements providing the basis of internet technology, the three essential elements of optical communication, were invented by Jun-ichi Nishizawa: the semiconductor laser (1957) being the light source, the graded-index optical fiber (1964) as the transmission line, and the PIN photodiode (1950) as the optical receiver.[193] Fiber-optic communication was proposed by Nishizawa in 1963.[171] Izuo Hayashi's invention of the continuous wave semiconductor laser in 1970 led directly to the light sources in fiber-optic communication, commercialized by Japanese entrepreneurs,[168] and opened up the field of optical communication, playing an important role in the communication networks of the future.[194] Their work laid the foundations for the Information Age.[193]

Parametron: Eiichi Goto invented the parametron in 1954 as an alternative to the vacuum tube. Early Japanese computers used parametrons until they were superseded by transistors.[195]

PIN diode/photodiode: Invented by Jun-ichi Nishizawa and his colleagues in 1950.[196]

Plastic central processing unit: Shunpei Yamazaki invented a central processing unit made entirely from plastic.[174]

Quantum flux parametron: Eiichi Goto invented the quantum flux parametron in 1986 using superconducting Josephson junctions on integrated circuits as an improvement over existing parametron technology.[195]

Radio-controlled wheel transmitter: Futaba introduced the FP-T2F in 1974 that was the first to use a steering wheel onto a box transmitter.[197] KO Propo introduced the EX-1 in 1981 that integrated a wheel with a pistol grip with its trigger acting as the throttle. This became one of the two types of radio controlled transmitters currently for surface use.[198][199]

Semiconductor laser: Invented by Jun-ichi Nishizawa in 1957.[167][193]

Solid-state maser: Invented by Jun-ichi Nishizawa in 1955.[167]

Static induction transistor: Invented by Jun-ichi Nishizawa and Y. Watanabe in 1950.[200]

Stored-program transistor computer: The ETL Mark III began development in 1954,[201] and was completed in 1956, created by the Electrotechnical Laboratory.[202] It was the first stored-program transistor computer.[202][203][204]

Switching circuit theory: From 1934 to 1936, NEC engineer Akira Nakashima introduced switching circuit theory in a series of papers showing that two-valued Boolean algebra, which he discovered independently, can describe the operation of switching circuits.[205][170][206][169]

Videocassette recorder: The first machines (the VP-1100 videocassette player and the VO-1700 videocassette recorder) to use the first videocassette format, U-matic, were introduced by Sony in 1971.[207]

Game controllers

D-pad: In 1982, Nintendo's Gunpei Yokoi elaborated on the idea of a circular pad, shrinking it and altering the points into the familiar modern "cross" design for control of on-screen characters in their Donkey Kong handheld game. It came to be known as the "D-pad".[208] The design proved to be popular for subsequent Game & Watch titles. This particular design was patented. In 1984, the Japanese company Epoch created a handheld game system called the Epoch Game Pocket Computer. It featured a D-pad, but it was not popular for its time and soon faded. Initially intended to be a compact controller for the Game & Watch handheld games alongside the prior non-connected style pad, Nintendo realized that Gunpei's design would also be appropriate for regular consoles, and Nintendo made the D-pad the standard directional control for the hugely successful Nintendo Entertainment System under the name "+Control Pad".

Motion-sensing controller: Invented by Nintendo for the Wii, the Wii Remote is the first controller with motion-sensing capability. It was a candidate for Time's Best Invention of 2006.[209]

Printing

3D printing: In 1981, Hideo Kodama of Nagoya Municipal Industrial Research Institute invented two additive methods for fabricating three-dimensional plastic models with photo-hardening thermoset polymer, where the UV exposure area is controlled by a mask pattern or a scanning fiber transmitter.[210][211]

Hydrographics: Hydrographics, also known variously as immersion printing, water transfer printing, water transfer imaging, hydro dipping, or cubic printing has an somewhat fuzzy history. Three different Japanese companies are given credit for its invention. Taica Corporation claims to have invented cubic printing in 1974. However, the earliest hydrographic patent was filed by Motoyasu Nakanishi of Kabushiki Kaisha Cubic Engineering in 1982.[212]

Robotics

Android

DER-01, a Japanese actroid (an android intended to be very visually similar to humans)

The world's first android, DER 01, was developed by a Japanese research group, The Intelligent Robotics Lab, directed by Hiroshi Ishiguro at Osaka University, and Kokoro Co., Ltd. The Actroid is a humanoid robot with strong visual human-likeness developed by Osaka University and manufactured by Kokoro Company Ltd. (the animatronics division of Sanrio). It was first unveiled at the 2003 International Robot Exposition in Tokyo, Japan. The Actroid woman is a pioneer example of a real machine similar to imagined machines called by the science fiction terms android or gynoid, so far used only for fictional robots. It can mimic such lifelike functions as blinking, speaking, and breathing. The "Repliee" models are interactive robots with the ability to recognise and process speech and respond in kind.[213][214][215]

Karakuri puppet: Karakuri puppets (からくり人形, karakuri ningyō) are traditional Japanese mechanized puppets or automata, originally made from the 17th century to the 19th century. The word karakuri means "mechanisms" or "trick".[216] The dolls' gestures provided a form of entertainment. Three main types of karakuri exist. Butai karakuri (舞台からくり, stage karakuri) were used in theatre. Zashiki karakuri (座敷からくり, tatami room karakuri) were small and used in homes. Dashi karakuri (山車からくり, festival car karakuri) were used in religious festivals, where the puppets were used to perform reenactments of traditional myths and legends.

Robotic exoskeleton for motion support (medicine): The first HAL prototype was proposed by Yoshiyuki Sankai, a professor at Tsukuba University.[217] Fascinated with robots since he was in the third grade, Sankai had striven to make a robotic suit in order “to support humans.” In 1989, after receiving his Ph.D. in robotics, he began the development of HAL. Sankai spent three years, from 1990 to 1993, mapping out the neurons that govern leg movement. It took him and his team an additional four years to make a prototype of the hardware.[218]

Space exploration

Interplanetary solar sail spacecraft: IKAROS the world's first successful interplanetary solar sail spacecraft was launched by JAXA on 21 May 2010.[219]

Storage technology

Betamax (top) and VHS (bottom) tapes were respectively created by Japanese companies Sony and JVC.

Blu-ray Disc (alongside with other nations): After Shuji Nakamura's invention of practical blue laser diodes,[220] Sony started two projects applying the new diodes: UDO (Ultra Density Optical) and DVR Blue (together with Pioneer), a format of rewritable discs which would eventually become the Blu-ray Disc.[221] The Blu-ray Disc Association was founded by Massachusetts Institute of Technology alongside with nine companies: five from Japan, two from Korea, one from the Netherlands and one from France.

Compact Disc (also Dutch company Philips): The compact disc was jointly developed by Philips (Joop Sinjou) and Sony (Toshitada Doi). Sony first publicly demonstrated an optical digital audio disc in September 1976. In September 1978, they demonstrated an optical digital audio disc with a 150 minute playing time, and with specifications of 44,056 Hz sampling rate, 16-bit linear resolution, cross-interleaved error correction code, that were similar to those of the Compact Disc they introduced in 1982.[222]

Digital video disc (also Dutch company Philips): The DVD, first developed in 1995, resulted from a cooperation between three Japanese companies (Sony, Toshiba and Panasonic) and one Dutch company (Philips).

Flash memory: Flash memory (both NOR and NAND types) was invented by Dr. Fujio Masuoka while working for Toshiba c. 1980.[223][224]

Betamax: Betamax was an analog videocassette magnetic tape marketed to consumers released by Sony on May 10, 1975.[225]

VHS (Video Home System): The VHS was invented in 1973 by Yuma Shiraishi and Shizuo Takano who worked for JVC.[226]

Video tape recorder: Norikazu Sawazaki invented the first video tape recorder in 1953, a prototype helical scan video tape recorder.[227] In 1959, Toshiba released the first commercial helical scan video tape recorder.[228]

Television

All-electronic television: In 1926, Kenjiro Takayanagi invented the world's first all-electronic television, preceding Philo T. Farnsworth by several months.[229] By 1927, Takayanagi improved the resolution to 100 lines, which was not surpassed until 1931.[230] By 1928, he was the first to transmit human faces in halftones. His work had an influence on the later work of Vladimir K. Zworykin.[231]

Aperture grille: One of two major cathode ray tube (CRT) display technologies, along with the older shadow mask. Aperture grille was introduced by Sony with their Trinitron television in 1968.[232]

Color plasma display: The world's first color plasma display was produced by Fujitsu in 1989.[233]

Handheld television: In 1970, Panasonic released the first television that was small enough to fit in a large pocket, the Panasonic IC TV MODEL TR-001. It featured a 1.5-inch display, along with a 1.5-inch speaker.[234]

LCD television: The first LCD televisions were invented as handheld televisions in Japan. In 1980, Hattori Seiko's R&D group began development on color LCD pocket televisions.[235] In 1982, Seiko Epson released the first LCD television, the Epson TV Watch, a wristwatch equipped with an active-matrix LCD television.[236][181] In 1983, Casio released a handheld LCD television, the Casio TV-10.[237]

LED-backlit LCD: The world's first LED-backlit LCD television was Sony's Qualia 005, released in 2004.[238]

Textiles

Automatic power loom with a non-stop shuttle-change motion: Sakichi Toyoda invented numerous weaving devices. His most famous invention was the automatic power loom in which he implemented the principle of Jidoka (autonomation or autonomous automation). It was the 1924 Toyoda Automatic Loom, Type G, a completely automatic high-speed loom featuring the ability to change shuttles without stopping and dozens of other innovations. At the time it was the world's most advanced loom, delivering a dramatic improvement in quality and a twenty-fold increase in productivity.This loom automatically stopped when it detected a problem such as thread breakage.[239]

Vinylon: The second man-made fiber to be invented, after nylon. It was first developed by Ichiro Sakurada, H. Kawakami, and Korean scientist Ri Sung-gi at the Takatsuki chemical research center in 1939 in Japan.[240][241]

Timekeeping

A Seiko quartz wristwatch using the chronograph function (movement 7T92).

Automatic quartz: The first watch to combine self-winding with a crystal oscillator for timekeeping was unveiled by Seiko in 1986.[242]

Myriad year clock: The Myriad year clock (万年自鳴鐘 Mannen Jimeishou, lit. Ten-Thousand Year Self-ringing Bell), was a universal clock designed by the Japanese inventor Hisashige Tanaka in 1851. It belongs to the category of Japanese clocks called Wadokei.[243]

Quartz wristwatch: The world's first quartz wristwatch was revealed in 1967: the prototype of the Astron revealed by Seiko in Japan, where it was in development since 1958. It was eventually released to the public in 1969.[244]

Spring Drive: A watch movement which was first conceived by Yoshikazu Akahane working for Seiko in 1977 and was patented in 1982. It features a true continuously sweeping second hand, rather than the traditional beats per time unit, as seen with traditional mechanical and most quartz watches.[245]

Transportation

Bullet train: The world's first high volume capable (initially 12 car maximum) "high-speed train" was Japan's Tōkaidō Shinkansen, which officially opened in October 1964, with construction commencing in April 1959.[246] The 0 Series Shinkansen, built by Kawasaki Heavy Industries, achieved maximum passenger service speeds of 210 km/h (130 mph) on the Tokyo–Nagoya–Kyoto–Osaka route, with earlier test runs hitting top speeds in 1963 at 256 km/h.[246]

Electronically-controlled continuously variable transmission: In early 1987, Subaru launched the Justy in Tokyo with an electronically-controlled continuously variable transmission (ECVT) developed by Fuji Heavy Industries, which owns Subaru.[247]

Hybrid electric vehicle: The first commercial hybrid vehicle was the Toyota Prius launched in 1997.[248]

Hydrogen car: In 2014, Toyota launched the first production hydrogen fuel cell vehicle, the Toyota Mirai.[249] The Mirai has a range of 312 miles (502 km) and takes about five minutes to refuel. The initial sale price was roughly 7 million yen ($69,000).

Kei car: A category of small automobiles, including passenger cars, vans, and pickup trucks. They are designed to exploit local tax and insurance relaxations, and in more rural areas are exempted from the requirement to certify that adequate parking is available for the vehicle.[250][251]

Rickshaw: A two or three-wheeled passenger cart seating one or two people that serves as a mode of human-powered transport pulled by a runner draws a two-wheeled cart. The rickshaws was invented in Japan around 1869,[252][253] after the lifting of a ban on wheeled vehicles from the Tokugawa period (1603–1868),[254] and at the beginning of a rapid period of technical advancement across the Japanese archipelago.[253][255]

Spiral escalator: Mitsubishi Electric unveiled the world's first practical spiral escalator in 1985. Spiral escalators have the advantage of taking up less space than their conventional counterparts.[256]

Inverter-Controlled High-Speed Gearless Elevator

The insulated gate bipolar transistors (IGBTs) realized increased switching frequency and reduced magnetic noise in the motor, which eliminated the need for a filter circuit and resulted in a more compact system. The IGBT also allowed the development of a small, highly integrated and highly sophisticated all-digital control device, consisting of the combination of a high-speed processor, specially customized gate arrays, and a circuit capable of controlling large currents of several kHz. Today, the inverter-controlled gearless drive system is applied in high-speed elevators worldwide.[257]

Military

Aircraft Carrier Hōshō was the world's first purpose-built aircraft carrier to be completed. She was commissioned in 1922 for the Imperial Japanese Navy (IJN). Hōshō and her aircraft group participated in the January 28 Incident in 1932 and in the opening stages of the Second Sino-Japanese War in late 1937.[258]
Amphibious assault ship: Imperial Japanese Army Akitsu maru is regarded as the first of the kind.

Dock landing ship: Imperial Japanese Army Shinshu maru is regarded as the first of the kind.

Fire balloon: A fire balloon, or balloon bomb, was an experimental weapon launched by Japan from 1944 to 1945, during World War II.[259]

Diesel-powered tank

The world's first diesel-powered tank, this distinction goes to Japanese Type 89B I-Go Otsu, produced with a diesel engine from 1934 onwards.

Katana

Katana: The katana were traditional Japanese swords used by samurai warriors of ancient and feudal Japan. The swords originated in the Muromachi period (1392–1573) as a result of changing battle conditions requiring faster response times. The katana facilitated this by being worn with the blade facing up, which allowed the samurai to draw their blade and slash at their enemy in a single motion. Previously, the curved sword of the samurai was worn with the blade facing down. The ability to draw and cut in one motion also became increasingly useful in the daily life of the samurai.[260]

Shuriken: The shuriken was invented during the Gosannen War as a concealed weapon, primarily for the purpose of distracting a target.[261]

Wireless transmission

Meteor burst communications: The first observation of interaction between meteors and radio propagation was reported by Hantaro Nagaoka in 1929.[262]
Yagi antenna: The Yagi-Uda antenna was invented in 1926 by Shintaro Uda of Tohoku Imperial University, Sendai, Japan, with the collaboration of Hidetsugu Yagi, also of Tohoku Imperial University. Yagi published the first English-language reference on the antenna in a 1928 survey article on short wave research in Japan and it came to be associated with his name. However, Yagi always acknowledged Uda's principal contribution to the design, and the proper name for the antenna is, as above, the Yagi-Uda antenna (or array).[263]

Writing and correction implements

Model B in Pink

Correction tape: Correction tape was invented in 1989 by the Japanese product manufacturer Seed. It is an alternative to correction fluid.[264]

Gel pen: The gel pen was invented in 1984 by the Sakura Color Products Corporation of Osaka.[265]

Rollerball pen: The first rollerball pen was invented in 1963 by the Japanese company Ohto.[266]

Other

Artificial snowflake: The first artificial snowflake was created by Ukichiro Nakaya in 1936, three years after his first attempt.[267]

Canned coffee: Canned coffee was invented in 1965 by Miura Yoshitake, a coffee shop owner in Hamada, Shimane Prefecture, Japan.[268]

Emoji: The first emoji was created in 1998 or 1999 in Japan by Shigetaka Kurita.[269]

Fake food: Simulated food was invented after Japan’s surrender ending World War II in 1945. Westerners traveling to Japan had trouble reading Japanese menus and in response, Japanese artisans and candlemakers created wax food so foreigners could easily order something that looked appetizing.[270]

Go, modern rules of: Though the game originated in China, free opening of the game as it is played globally began in the 16th century Japan.

Imageboard: The first imageboards were created in Japan. Later imageboards such as 2chan would be created.[271]

Yoshizawa–Randlett system: The Yoshizawa–Randlett system is a diagramming system used for origami models. It was first developed by Akira Yoshizawa in 1954. It was later improved upon by Samuel Randlett and Robert Harbin.[272]
Textboard: Textboards like imageboards were invented in Japan. However, unlike imageboards, textboards are relatively unknown outside Japan.[271]

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