Yasuhiko Arakawa an Assistant Professor at the University of Tokyo and in 1993, was promoted Full Professor there. He is now at the Institute of Industrial Science, the University of Tokyo and is also the Director of Institute for Nano Quantum Information Electronics. He has been a visiting scientist of the California Institute of Technology in the period 1984-1986 and visiting Professor at the Technical University of Munich in the period 2009-2011. He is a member of Science Council of Japan since 2009. Yasuhiko Arakawa Yasuhiko Arakawa (Japanese , "Arakawa Yasuhiko"; born 6 November 1952) is a Japanese physicist. His research focuses
Japanese gunboat Sumida (1939) Japanese gunboat Sumida (1939) "Sumida" was the second of two vessels in the river gunboats authorized under the 3rd Naval Armaments Supplement Programme of 1937. "Sumida" had a hull with an overall length of and width of , with a normal displacement of 338 tons and draft of . She was propelled by two Kampon steam turbine engines with two boilers driving two shafts, producing and had a top speed of 17 knots. The ship was armed with one /28 cal. gun and one 25mm machine gun. " Sumida" was laid down on 13 April 1939 and launched 30 October