Nakamura, Shuji

Nakamura, Shuji,

1954–, Japanese physicist and electronics engineer, grad. Univ. of Tokushima (D.Eng., 1994). Nakamura joined the Nichia Corporation in 1977, and it was there that he began his life-long work with light-emitting devices. In 1993 Nichia put into production Nakamura's first invention, a high brightness gallium nitride LED (light-emitting diodediode
, two-terminal electronic device that permits current flow predominantly in only one direction. Most diodes are semiconductor devices; diode electron tubes are now used only for a few specialized applications.
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) whose brilliant blue light is the key to white LED lighting. In 1999 Nakamura left Nichia for a position as professor of materials and director of the Solid State Lighting and Display Center at the Univ. of California, Santa Barbara, to continue his research into sources of light. He received the 2006 Millennium Technology Prize for his invention of revolutionary new light sources: blue, green, and white LEDs and the blue laser diode, and shared the 2014 Nobel Prize in Physics, jointly with Hiroshi AmanoAmano, Hiroshi,
1960–, Japanese physicist, Ph.D. Nagoya Univ., Japan, 1989. He is a professor at Nagoya Univ. in Japan. Amano is the joint recipient with Shuji Nakamura and Isamu Akasaki of the 2014 Nobel Prize in Physics, awarded for the invention of efficient blue
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 and Isamu AkasakiAkasaki, Isamu,
1929–, Japanese physicist, Ph.D. Nagoya Univ., Japan, 1964. He is a professor at Meijo Univ. and a distinguished professor at Nagoya Univ. in Japan.
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, for the invention of blue LEDs, which enabled the development of white LEDs. Blue LEDs are used in flat-screen displays, blue lasers are used in such optical storage devices as Blu-ray and HD-DVD players, and white LEDs that provide an energy-efficient alternative to incandescent light bulbs. Nakamura's 2001 lawsuit against Nichia over his compensation for his discoveries, which ultimately was settled out of court, shattered the unwritten bond that had formerly existed between employer and employee in Japan.
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