Izuo Hayashi
Encyclopedia
was a Japanese physicist
Physicist
A physicist is a scientist who studies or practices physics. Physicists study a wide range of physical phenomena in many branches of physics spanning all length scales: from sub-atomic particles of which all ordinary matter is made to the behavior of the material Universe as a whole...

.

Hayashi was born in Tokyo
Tokyo
, ; officially , is one of the 47 prefectures of Japan. Tokyo is the capital of Japan, the center of the Greater Tokyo Area, and the largest metropolitan area of Japan. It is the seat of the Japanese government and the Imperial Palace, and the home of the Japanese Imperial Family...

 in 1922 and graduated from the Department of Physics, University of Tokyo
University of Tokyo
, abbreviated as , is a major research university located in Tokyo, Japan. The University has 10 faculties with a total of around 30,000 students, 2,100 of whom are foreign. Its five campuses are in Hongō, Komaba, Kashiwa, Shirokane and Nakano. It is considered to be the most prestigious university...

 in 1946. He then 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
Bell Labs
Bell Laboratories is the research and development subsidiary of the French-owned Alcatel-Lucent and previously of the American Telephone & Telegraph Company , half-owned through its Western Electric manufacturing subsidiary.Bell Laboratories operates its...

 on semiconductor lasers. In 1971 he joined the Research Laboratories of NEC
NEC
, a Japanese multinational IT company, has its headquarters in Minato, Tokyo, Japan. NEC, part of the Sumitomo Group, provides information technology and network solutions to business enterprises, communications services providers and government....

 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 till retirement in 1996 he served as advisor in the same laboratory. Hayashi died of acute leukemia in 2005.

Awards and honors

  • Fujiwara Prize, Japan (1946)
  • Prize from Institute of Electronics and Communication Engineers, Japan (1975)
  • J J Ebers Award
    J J Ebers Award
    The J J Ebers Award was established in 1971 with the intention to foster progress in electron devices and to commemorate the life activities of Jewell James Ebers, whose distinguished contributions, particularly in the transistor art, shaped the understanding and technology of electron devices...

    , IEEE (1984)
  • Asahi Prize
    Asahi Prize
    The Asahi Prize is a prize awarded by the Japanese newspaper the Asahi shimbun for achievement in scholarship or the arts that has made a contribution to culture or society. It was established in 1929. Many recipients of this prize have later been honoured with a Nobel Prize...

    , Japan (1986)
  • C&C Prize
    C&C Prize
    C&C Prizes is an award given by the NEC Corporation "in recognition of outstanding contributions to research and development and/or pioneering work in the fields of semiconductors, computers, telecommunications and their integrated technologies." Established in 1985, through the NEC's nonprofit...

     (with Morton B. Panish), Japan (1986)
  • IEEE David Sarnoff Award
    IEEE David Sarnoff Award
    The IEEE David Sarnoff Award is a Technical Field Award presented annually by the IEEE.The award was established in 1959 by the RCA Corporation; in 1989 the Sarnoff Corporation became its sponsor...

    (1988)
  • The Marconi International Award, US (1993)
  • Applied Physics Society Prize, Japan (2001)
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