A Japanese scientist who is widely known for inventing the bright gallium nitride p-n junction blue LED. In 1952, he graduated from Kyoto University. He has achieved doctorate in Eng. degree in Electronics from Nagoya University. In late 1960's he started his career by working on GaN-based blue LEDs. He also worked in Matsushita Research Institute Tokyo where he worked to improve his quality of Gan crystals and device structures. Later in 1985 his group succeeded in growing high-quality Gan on sapphire. For his big achievements he has been awarded with the Kyoto Prize in Advanced Technology and the IEEE Edison Medal. He also won the 2014 Nobel prize in Physics, together with his colleague Hiroshi Amano and Shuji Nakamura, which is one of his greatest achievement.
Till now, Nobel prize winner this scientist has not involved himself in any kind of controversial situation that can ruin his career. Talking about his personal life he is already tied in knot with his love of life. He has not disclosed all the information about his personal life but according to him his wife has been very supportive all the time. She was with him when he was awarded with Nobel prize too. He has never faced divorce. He has not publicized any information regarding his children.