Shintaro Uda (宇田 新太郎, Uda Shintarō; June 1, 1896 – August 18, 1976) was a Japanese inventor, and assistant to Professor…
Shintaro Uda (宇田 新太郎, Uda Shintarō; June 1, 1896 – August 18, 1976) was a Japanese inventor, and assistant to Professor Hidetsugu Yagi at Tohoku Imperial University, where together they invented the Yagi–Uda antenna in 1926. In February 1926, Yagi and Uda published their first report on the wave projector antenna in a Japanese publication. Yagi applied for patents on the new antenna both in Japan and the United States. His U.S. patent 1,860,123 ("Variable Directional Electric Wave Generating Device") was issued in May 1932 and assigned to the Radio Corporation of America.
Famous Alumni of Tohoku Imperial University
Tohoku Imperial University: 3 people
Matsusaburo Fujiwara (藤原 松三郎, Fujiwara Matsusaburō, 14 February 1881, Tsu, Mie – 12 October 1946, Fukushima) was a…
Matsusaburo Fujiwara (藤原 松三郎, Fujiwara Matsusaburō, 14 February 1881, Tsu, Mie – 12 October 1946, Fukushima) was a Japanese mathematician and historian of mathematics.
Masataka Ogawa (小川 正孝, Ogawa Masataka; 21 February 1865 – 11 July 1930) was a Japanese chemist mainly known for the…
Masataka Ogawa (小川 正孝, Ogawa Masataka; 21 February 1865 – 11 July 1930) was a Japanese chemist mainly known for the claimed discovery of element 43 (later known as technetium), which he named nipponium. In fact, he had discovered, but misidentified, element 75 (later called rhenium). After graduating from the University of Tokyo, he studied under William Ramsay in London, where he worked on the analysis of the rare mineral thorianite. He extracted and isolated a small amount of an apparently unknown substance from the mineral, which he announced as the discovery of element 43, naming the newly discovered element nipponium. He published his results in 1909 and a notice was also published in the Journal of the American Chemical Society. For this work, he was awarded a doctorate and the highest prize of the Tokyo Chemical Society. However, no other researchers were able to replicate his discovery, and the announcement was forgotten. Ogawa served as president of Tohoku University between 1919 and 1928. While the name nipponium could not be reused for another element, element 113 was also discovered by a team of Japanese scientists and is now named nihonium, also after Japan. The name was chosen in respectful homage to Ogawa's work.