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Yasujiro Niwa (丹羽 保次郎, Niwa Yasujirō, April 1, 1893 – February 28, 1975) 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.
Yasujiro Niwa Phototelegraphic Method. Yasujiro Niwa and Masatsugu Kobayashi invented a new type of phototelegraphic device, consisting of a separate transmitter and receiver and using a dedicated line, which would lay the technological foundation for the present-day fax machine.
- Introduction
- Sakichi Toyoda
- Kokichi Mikimoto
- Jokichi Takamine
- Kikunae Ikeda
- Umetaro Suzuki
- Kyota Sugimoto
- Kotaro Honda
- Hidetsugu Yagi
- Yasujiro Niwa
The system of industrial rights in Japan, founded a hundred years ago, celebrated 100 years of its existence on April 18, 1985. During this period, the system played a very important role in the industrial development of Japan, which was accelerated by this system for technological development. Up until the present time, the rights to some 2 millio...
Patent Number 1195 Wooden Weaving Machine Driven by Human Power Sakichi Toyoda was born in year 3 of the Keio Era (1867) in Totomikuni (presently Shizuoka Prefecture). The Patent Monopoly Act was proclaimed when he was 18 years old. Because he was very interested in national issues and wanted to dedicate his efforts to these issues, he decided that...
Patent Number 2670 Cultured Pearls Kokichi Mikimoto was born in year 5 of the Ansei Era (1858) in Shimakoku (at the present in Mie prefecture). Filled with an entrepreneurial spirit, he came to Tokyo in year 11 of the Meiji Era with a desire to found a business. At that time, he was able to study and observe buying and selling of pearls in Yokohama...
Patent Number 4785 Adrenaline Jokichi Takamine was born in the first year of the Ansei Era (1854) in Ecchukoku (presently in prefecture Toyama). In year 12 of the Meiji Era, he graduated from Engineering Faculty (presently the Engineering Faculty of the Tokyo University) in applied sciences, and the next year he went on a study stay to England. Aft...
Patent Number 14805 Sodium Glutamate Kikunae Ikeda was born in the first year of the Genji Era (1864) in Kyoto. In year 22 of the Meiji Era, he graduated from the Science Faculty of the Tokyo Imperial University, and from year 32 of the Meiji Era he spent two years as an exchange student abroad in Germany. After his return back to Japan, he was emp...
Patent Number 20785 Vitamin B1 Umetaro Suzuki was born in year 7 of the Meiji Era (1874) in Shizuoka prefecture. After graduating from the Faculty of Agricultural Technology of the Tokyo Imperial University, he became a postgraduate student and attained the title of doctor of agricultural sciences in year 34 of the Meiji Era. In the same year he we...
Patent Number 27877 Typewriter for Japanese Language Kyota Sugimoto was born in Okayama prefecture in year 15 (1882) of the Meiji Era. Because of his desire to become a specialist in communication technology, he entered the Training Institute for Communication Technology in Osaka, and completed his studies at the training institute in year 33 of th...
Patent Number 32234 KS Steel Kotaro Honda was born in year 3 of the Meiji Era (1870) in Aichi prefecture. He started studying physics at the Science Faculty of the Tokyo Imperial University, and later became interested in the mechanism of magnetic attraction under the guidance of scholars specializing in iron and steel and performing experiments wi...
Patent Number 69115 Yagi Antenna Hidetsugu Yagi was born in year 19 of the Meiji Era (1886) in Osaka prefecture. After he graduated from the Department of Electronic Engineering of the Tokyo Imperial University, Faculty of Sciences, in year 42 of the Meiji Era, he studied from year 2 of the Taisho Era in England, America, and Germany, and in German...
Patent Number 84722 Phototelegraphic Method Yasujiro Niwa was born in year 26 of the Meiji Era (1893) in Mie prefecture. He graduated from the Department of Electronic Engineering at the Faculty of Sciences of the Tokyo University in year 5 of the Taisho Era and then worked at the Research Institute for Electronics of the Ministry of Communications...
' Yasujiro Niwa (丹羽保次郎, Niwa Yasujiro ?, 1 st de abril de 1893 - 28 de febrero de 1975) es un investigador japonés en ingeniería eléctrica de Matsusaka en la prefectura de Mie. En la década de 1920 inventó un sencillo dispositivo para la transmisión de fotografías telegráficas por cable y más tarde por radio , el precursor de ...
Yasujiro Niwa, who was 35 years old at the time and head of the Technology Division at NEC, was leading the development efforts. Focusing on the future potential of photo transmission technology early on, in 1927, Niwa established the Transmission Department within NEC and proceeded with the development of the technology for commercialization.
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Switching theory forms the basis of computer theory, which is also called Boolean algebra, logical algebra or logical mathematics. Japan achieved some world-class results in this field. Akira Nakajima, who worked on the design of relay circuits for devices like remote monitor/controllers and switchboards at NEC, considered the idea of logically ...
