|Died||November 19, 1975 82) (aged|
|Alma mater||Tokyo Imperial University|
|Known for||MKM steel|
|Institutions||Tokyo Imperial University|
Tokushichi Mishima (三島 徳七, Mishima Tokushichi, February 24, 1893 – November 19, 1975) was a Japanese metallurgist. He discovered that aluminum restored magnetism to non-magnetic nickel steel. He invented MKM steel, which was an extremely inexpensive magnetic substance that has been used in many applications. It is also closely related to the modern Alnico magnets. He later became a professor at the Tokyo Imperial University. After his death, his remains were buried in the Tama Cemetery in Tokyo.
On April 18, 1985, the Japan Patent Office selected him as one of Ten Japanese Great Inventors.
Takamine Jōkichi was a Japanese chemist.
Mikimoto Kōkichi was a Japanese entrepreneur who is credited with creating the first cultured pearl and subsequently starting the cultured pearl industry with the establishment of his luxury pearl company Mikimoto.
Michiko is a member of the Imperial House of Japan who served as the Empress consort of Japan as the wife of Akihito, the 125th Emperor of Japan reigning from 7 January 1989 to 30 April 2019.
Elmer Ambrose Sperry Sr. was an American inventor and entrepreneur, most famous for construction, 2 years after Hermann Anschütz-Kaempfe, of the gyrocompass and as founder of the Sperry Gyroscope Company. He was known as the "father of modern navigation technology."
Yoshiro Nakamatsu, also known as Dr. NakaMats, is a Japanese inventor. He regularly appears on Japanese talk shows demonstrating his inventions.
Kikunae Ikeda was a Japanese chemist and Tokyo Imperial University professor of Chemistry who, in 1908, uncovered the chemical basis of a taste he named umami. It is one of the five basic tastes along with sweet, bitter, sour and salty.
Sakichi Toyoda was a Japanese inventor and industrialist. He was born in Kosai, Shizuoka. The son of a farmer and sought-after carpenter, he started the Toyoda family companies. His son, Kiichiro Toyoda, would later establish Japan's largest automaker, Toyota. Toyoda is referred to as the "King of Japanese Inventors".
Umetaro Suzuki was a Japanese scientist, born in what is now part of Makinohara, Shizuoka, Japan. He was a member of the Imperial Academy, and a recipient of the Grand Cordon of the Order of the Sacred Treasure and the Order of Culture. His research was among the earliest of modern vitamin research.
Kotaro Honda, born on February 23, 1870 in Okazaki, Aichi Prefecture – February 12, 1954) was a Japanese scientist and inventor. He invented KS steel, which is a type of magnetic resistant steel that is three times more resistant than tungsten steel. This material, which had 250 oersteds magnetic resistance, was developed through rigorous basic research on steel and alloys.
Hidetsugu Yagi was a Japanese electrical engineer from Osaka, Japan. When working at Tohoku University, he wrote several articles that introduced a new antenna designed by his colleague Shintaro Uda to the English-speaking world.
Yasujiro Niwa was a Japanese electrical scientist from Matsusaka, Mie. In the 1920s, he invented a simple device for phototelegraphic transmission through cable and later via radio, a precursor to mechanical television. He later became the Director of the Department of Electronic Engineering of University of Tokyo. He was awarded the Order of Cultural Merits and the Order of Merit of the First Class.
MKM steel, an alloy containing nickel and aluminum, was developed in 1931 by the Japanese metallurgist Tokuhichi Mishima. While conducting research into the properties of nickel, Mishima discovered that a strongly magnetic steel could be created by adding aluminum to non-magnetic nickel steel.
Nagai Naoyuki, also known as Nagai Genba or Nagai Mondonoshō, was a Japanese hatamoto under the Tokugawa of Bakumatsu period Japan.
Tama Cemetery in Tokyo is the largest municipal cemetery in Japan. It is split between the cities of Fuchu and Koganei within the Tokyo Metropolis. First established in April 1923 as Tama Graveyard, it was redesignated Tama Cemetery in 1935. It is one of the largest green areas in Tokyo.
The system of industrial rights in Japan celebrated 100 years of its existence in 1985. In celebration of the one-hundredth anniversary of the Japanese system of industrial property rights, the Japan Patent Office selected ten great inventors whose contributions were particularly memorable and of historical significance in the industrial development of Japan.
Events from the year 1975 in Japan. It corresponds to Shōwa 50 (昭和50年) in the Japanese calendar.
KS steel is a permanent magnetic steel with three times the magnetic reluctance of tungsten steel, was developed in 1917 by the Japanese scientist and inventor Kotaro Honda. KS stands for Kichizaemon Sumitomo, the head of the family-run conglomerate, who provided financial support for the research leading to KS Steel's invention. Honda would go on to invent NKS steel in 1933 whose magnetic resistance is several times higher than that of KS Steel.
This is the history of science and technology in Modern Japan.
Tsuyoshi Yoshida, known by the pen name Go Mishima, was a Japanese homoerotic fetish artist and founder of the magazine Sabu. He is noted for his illustrations of "macho-type" men, often with yakuza-inspired irezumi tattoos. Mishima, along with Tatsuji Okawa, Sanshi Funayama, and Go Hirano, is regarded by artist and historian Gengoroh Tagame as a central figure in the first wave of contemporary gay artists in Japan.