Masatoshi Koshiba

Masatoshi Koshiba
Koizumi Cabinet E-mail Magazine, No.74, December 12, 2002.
Born	(1926-09-19) September 19, 1926 (age 90) Toyohashi, Aichi, Japan
Nationality	Japan
Fields	Physics
Institutions	University of Chicago University of Tokyo Tokai University
Alma mater	University of Tokyo University of Rochester
Doctoral advisor	Morton F. Kaplon
Other academic advisors	Takahiko Yamanouchi
Doctoral students	Yoji Totsuka
Other notable students	Takaaki Kajita
Known for	Astrophysics, neutrinos
Notable awards	Humboldt Prize (1997) Wolf Prize in Physics (2000) Nobel Prize in Physics (2002)

Masatoshi Koshiba (小柴 昌俊, Koshiba Masatoshi^?, born September 19, 1926) is a Japanese physicist. He jointly won the Nobel Prize in Physics in 2002.

He is now Senior Counselor of International Center for Elementary Particle Physics (ICEPP) and Emeritus Professor of University of Tokyo.

He graduated from the University of Tokyo in 1951 and received a Ph.D. in physics at the University of Rochester, New York, in 1955. From July 1955 to February 1958 he was Research Associate, Department of Physics, University of Chicago; from March 1958 to October 1963, he was Associate Professor, Institute of Nuclear Study, University of Tokyo, although from November 1959 to August 1962 he was on leave from the above as Senior Research Associate with the honorary rank of Associate Professor and as the Acting Director, Laboratory of High Energy Physics and Cosmic Radiation, Department of Physics, University of Chicago. At the University of Tokyo he became Associate Professor in March 1963 and then Professor in March 1970 in the Department of Physics, Faculty of Science, and Emeritus Professor there in 1987. From 1987 to 1997, Koshiba taught at Tokai University. In 2002, he jointly won the Nobel Prize in Physics "for pioneering contributions to astrophysics, in particular for the detection of cosmic neutrinos". (The other shares of that year's Prize were awarded to Raymond Davis Jr. and Riccardo Giacconi of the U.S.A.)