Akasaki, Isamu

Akasaki, 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. Akasaki shared the 2014 Nobel Prize in Physics 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 Shuji NakamuraNakamura, 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.
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 for the invention of efficient blue light-emitting diodes (LEDs), which has enabled the development of bright, energy-saving white light sources. The three scientists, Akasaki and Amano working together at Nagoya Univ. and Nakamura working independently, found a way to produce blue light from semiconductors in the early 1990s. This allowed white light LED sources to be developed through the combination of blue LEDs with pre-existing red and green LEDs. The invention has allowed the incandescent bulbs that lit the world of the 20th cent. to be replaced by energy-saving and more environmentally friendly LED light sources.
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