Inventor
HIRATA SHOJI
JP36 patents
⚠️ This page may combine multiple inventors who share the name “HIRATA SHOJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
30 patentsUS6414976B1Jul 2, 2002
Semiconductor light emitting device
SONY CORP53 citations92
US6195375B1Feb 27, 2001
Self-pulsation type semiconductor laser
SONY CORP28 citations92
US6567440B1May 20, 2003
Semiconductor laser driving method and optical disc apparatus
SONY CORP15 citations91
US6741625B2May 25, 2004
Semiconductor laser
SONY CORP16 citations84
US5966397AOct 12, 1999
Self-pulsating semiconductor laser
SONY CORP15 citations74
US5255280AOct 19, 1993
Semiconductor laser
SONY CORP14 citations74
US4896331AJan 23, 1990
Distributed feedback semiconductor laser
SONY CORP15 citations74
US4888784ADec 19, 1989
Semiconductor laser device
SONY CORP12 citations74
US4833687AMay 23, 1989
Distributed feedback semiconductor laser
SONY CORP19 citations74
US4716132ADec 29, 1987
Method of manufacturing a distributed feedback type semiconductor device
SONY CORP12 citations74
US6084251AJul 4, 2000
Semiconductor light emitting device with carrier diffusion suppressing layer
SONY CORP11 citations73
US5111469AMay 5, 1992
Semiconductor laser
SONY CORP16 citations73
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
US6185239B1Feb 6, 2001
Semiconductor laser device
SONY CORP9 citations72
US5953357ASep 14, 1999
Semiconductor laser
SONY CORP16 citations72
US6487226B1Nov 26, 2002
Semiconductor light emitting device
SONY CORP13 citations70
US7879628B2Feb 1, 2011
Semiconductro laser device
SONY CORP2 citations63
US7822304B2Oct 26, 2010
Laser beam multiplexer
SONY CORP5 citations63
US7248612B2Jul 24, 2007
Semiconductor laser device with multi-dimensional-photonic-crystallized region
SONY CORP2 citations63
US6633054B2Oct 14, 2003
Method of fabricating a semiconductor light-emitting device and the semiconductor light-emitting device
SONY CORP4 citations63
US6219312B1Apr 17, 2001
Timer reservation apparatus of disk recording and reproducing apparatus and timer reservation information recorded disc
SONY CORP5 citations63
US4807245AFeb 21, 1989
Distributed-feedback type semiconductor laser
SONY CORP5 citations63
US7965749B2Jun 21, 2011
Laser diode and method of manufacturing the same
SONY CORP1 citations62
US7880894B2Feb 1, 2011
Vibration detection device and vibration detector
SONY CORP4 citations62
US7729396B2Jun 1, 2010
Laser diode device
SONY CORP0 citations52
US7510887B2Mar 31, 2009
Semiconductor laser device
SONY CORP0 citations52
US7907651B2Mar 15, 2011
Laser diode
SONY CORP0 citations51
US7532654B2May 12, 2009
Laser diode
SONY CORP0 citations51
US7113532B2Sep 26, 2006
Semiconductor laser device
SONY CORP1 citations50