P

Inventor

AGA KEIGO

JP7 patents
⚠️ This page may combine multiple inventors who share the name “AGA KEIGO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SONY CORP

4 patents
US6567440B1May 20, 2003

Semiconductor laser driving method and optical disc apparatus

SONY CORP15 citations91
US6614820B2Sep 2, 2003

Semiconductor laser driving method and optical disc apparatus

SONY CORP7 citations72
US6580737B1Jun 17, 2003

Semiconductor laser driving method and optical disc apparatus

SONY CORP7 citations72
US5428232AJun 27, 1995

Field effect transistor apparatus

SONY CORP6 citations57

SUMITOMO ELECTRIC INDUSTRIES

2 patents
US4955683ASep 11, 1990

Apparatus and a method for coupling an optically operative device with an optical fiber

SUMITOMO ELECTRIC INDUSTRIES18 citations81
US4985597AJan 15, 1991

Optical semiconductor device

SUMITOMO ELECTRIC INDUSTRIES2 citations62

FUKASAWA HIROYUKI

1 patent
US8654810B2Feb 18, 2014

Light-emitting device and method of manufacturing the same

FUKASAWA HIROYUKI9 citations80