KA

Keigo Aga

SO Sony: 5 patents #7,785 of 25,231Top 35%
Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
Overall (All Time): #740,352 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8654810 Light-emitting device and method of manufacturing the same Hiroyuki Fukasawa, Yuichi Hamaguchi, Takeharu Asano, Noriyuki Banno 2014-02-18
6614820 Semiconductor laser driving method and optical disc apparatus Shoji Hirata 2003-09-02
6580737 Semiconductor laser driving method and optical disc apparatus Shoji Hirata 2003-06-17
6567440 Semiconductor laser driving method and optical disc apparatus Shoji Hirata 2003-05-20
5428232 Field effect transistor apparatus Mitsuhiro Hika, Shinichi Tanaka, Hidemi Takakuwa 1995-06-27
4985597 Optical semiconductor device Takeshi Sekiguchi, Nobuo Shiga 1991-01-15
4955683 Apparatus and a method for coupling an optically operative device with an optical fiber Nobuo Shiga, Takeshi Sekiguchi 1990-09-11