Isamu Akasaki was a Japanese materials scientist specializing in the field of semiconductor technology. He is best known for co-inventing the bright gallium nitride (GaN) p–n junction blue LED in 1989 and subsequently the high-brightness GaN blue LED as well. The Nobel Prize in Physics 2014, announced October 7, 2014. Isamu Akasaki, Hiroshi Amano, and Shuji Nakamura, “for the invention of efficient blue light-emitting diodes which has enabled bright and energy-saving white light sources”. Isamu Akasaki: born 1929, Chiran, Japan. Hiroshi Amano: born 1960, Hamamatsu, Japan. Shuji Nakamura: born 1954, Ikata, Japan. Wiki link Wiki link Wiki link Data: the Nobel Foundation (CC0).