Semiconductor physics
Hiroshi Amano: inventions and patents
Known for Efficient blue light-emitting diodes using gallium nitrideNationality Born in Hamamatsu, JapanBorn 11 September 1960
Hiroshi Amano, born in Hamamatsu, Japan, shared the 2014 Nobel Prize in Physics with Isamu Akasaki and Shuji Nakamura for the invention of efficient blue light-emitting diodes. He was at Nagoya University at the time of the award. He is a named inventor, with Akasaki and others, on US Patent 5,122,845, assigned to Nagoya University and Toyoda Gosei.1,2
Patents
US 5,122,8452Substrate for growing gallium nitride compound-semiconductor device and light emitting diode
- Filed
- 26 February 1990
- Granted
- 16 June 1992
- Assignee
- Nagoya University, Toyoda Gosei Co Ltd
- Co-inventors
- Katsuhide Manabe, Hisaki Kato, Isamu Akasaki, Kazumasa Hiramatsu
View the patent document
Inventions
- Efficient blue LED. Gallium nitride based blue light-emitting diodes recognised by the 2014 Nobel Prize in Physics.1
Recognition
- 2014 Nobel Prize in Physics (one third share), for the invention of efficient blue light-emitting diodes1
Sources
- Nobel Prize Outreach, Hiroshi Amano, Facts (accessed 2026-10-27)
- Google Patents, US5122845A Substrate for growing gallium nitride compound-semiconductor device and light emitting diode (accessed 2026-10-27)