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{{Short description|Japanese physicist}}
'''{{nihongo|Izuo Hayashi|林厳雄|Hayashi Izuo|}}''' ([[May 1]], [[1922]]-[[September 26]], [[2005]]) was a Japanese [[physicist]].▼
{{Infobox scientist
|name = Izuo Hayashi
|image = Izuo Hayashi.jpg
|image_size = 200px
|caption =
|birth_date = {{Birth date|1922|05|01}}
|death_date = {{Death date and age|2005|09|26|1922|05|01}}
|birth_place = Tokyo, Japan<ref name=r1/>
|nationality = Japanese
|field = Physics
|known_for =
|prizes =
}}
▲'''{{nihongo|Izuo Hayashi|林 厳雄|Hayashi Izuo|}}''' (
Hayashi was born in [[Tokyo]] in 1922 and graduated from the faculty of science, [[University of Tokyo]] in 1946. He worked as assistant professor at the Institute for Nuclear Research of the same university and defended his PhD in 1962. After the PhD defense, he stayed for a year at [[MIT]], and between 1964 and 1971 worked at [[Bell Labs]] on [[semiconductor laser]]s. In 1971 he joined the Research Laboratories of [[NEC]] where he continued his studies of semiconductor lasers, aiming to improve their reliability and lifetime. Between 1982 and 1987 he was a head scientist at NEC, and in 1987–1994 became director of the Optoelectronics Technology Research Laboratory in [[Tsukuba]]. From 1994 until retirement in 1996, he served as advisor in the same laboratory. Hayashi died of [[acute leukemia]] in 2005.<ref name=r1/><ref>[http://www.eaj.or.jp/eajnews/news107/news107-6-j.html Obituary of Izuo Hayashi] {{webarchive|url=https://archive.today/20120728234626/http://www.eaj.or.jp/eajnews/news107/news107-6-j.html |date=2012-07-28 }}. The Engineering Academy of Japan (in Japanese)</ref>
{{japan-bio-stub}}▼
==Awards and honors==
*[[Ginjirō Fujiwara|Fujihara Award]], Japan (1946)
*Prize from Institute of Electronics and Communication Engineers, Japan (1975)
*[[J J Ebers Award]], [[IEEE]] (1984)
*[[Asahi Prize]], Japan (1986)
*[[C&C Prize]] (with Morton B. Panish), Japan (1986)
*[[IEEE David Sarnoff Award]] (1988)
*[[Marconi Prize]] (1993)
*Applied Physics Society Prize, Japan (2001)
*[[Kyoto Prize]], Japan (2001)<ref name=r1>[http://www.inamori-f.or.jp/laureates/k17_a_izuo/prf_e.html Izuo Hayashi] {{webarchive|url=https://web.archive.org/web/20110515201146/http://www.inamori-f.or.jp/laureates/k17_a_izuo/prf_e.html |date=2011-05-15 }}. Inamori Foundation</ref>
==References==
{{reflist}}
{{Authority control}}
{{DEFAULTSORT:Hayashi, Izuo}}
[[Category:1922 births]]
[[Category:2005 deaths]]
[[Category:Japanese physicists]]
[[Category:NEC people]]
[[Category:University of Tokyo alumni]]
[[Category:Academic staff of the University of Tokyo]]
[[Category:Scientists at Bell Labs]]
[[Category:Japanese expatriates in the United States]]
[[Category:Kyoto laureates in Advanced Technology]]
{{Physicist-stub}}
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