Inventor
SHOJI HAJIME
JP19 patents
⚠️ This page may combine multiple inventors who share the name “SHOJI HAJIME”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
13 patentsUS6426515B2Jul 30, 2002
Semiconductor light-emitting device
FUJITSU LTD105 citations98
US6448583B1Sep 10, 2002
Optical semiconductor module, its manufacture, reflection film, its manufacture, and laser and optical devices using reflection film
FUJITSU LTD68 citations96
US5373520ADec 13, 1994
Surface emitting laser and method of manufacturing the same
FUJITSU LTD57 citations94
US5783845AJul 21, 1998
Semiconductor device and its manufacture utilizing crystal orientation dependence of impurity concentration
FUJITSU LTD21 citations92
US5668048ASep 16, 1997
Method of making a semiconductor device utilizing crystal orientation dependence of impurity concentration
FUJITSU LTD42 citations92
US5533041AJul 2, 1996
Optical transmission and reception device
FUJITSU LTD43 citations92
US5408486AApr 18, 1995
Surface emitting laser provided with light modulator
FUJITSU LTD27 citations92
US6579737B2Jun 17, 2003
Optical semiconductor module, its manufacture, reflection film, its manufacture, and laser and optical devices using reflection film
FUJITSU LTD7 citations74
US6512783B1Jan 28, 2003
Semiconductor laser and method of manufacturing the same
FUJITSU LTD11 citations74
US6925103B2Aug 2, 2005
Gain-coupled DFB laser diode
FUJITSU LTD11 citations73
US5404370AApr 4, 1995
Planar light emitting device having a reduced optical loss
FUJITSU LTD14 citations73
US6560266B2May 6, 2003
Distributed feedback semiconductor laser
FUJITSU LTD5 citations63
US6850550B2Feb 1, 2005
Complex coupling MQW semiconductor laser
FUJITSU LTD0 citations42
SUMITOMO ELECTRIC INDUSTRIES
3 patentsUS9395504B2Jul 19, 2016
System to control wavelength and method to control wavelength
SUMITOMO ELECTRIC INDUSTRIES4 citations71
US11527866B2Dec 13, 2022
Semiconductor optical device
SUMITOMO ELECTRIC INDUSTRIES1 citations61
US9444221B2Sep 13, 2016
Laser apparatus and method to re-tune emission wavelength tunable LD
SUMITOMO ELECTRIC INDUSTRIES0 citations51