Inventor
SUGAWARA HIDETO
JP78 patents
⚠️ This page may combine multiple inventors who share the name “SUGAWARA HIDETO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
47 patentsUS6825502B2Nov 30, 2004
Light emitting element, method of manufacturing the same, and semiconductor device having light emitting element
TOSHIBA KK95 citations99
US6340824B1Jan 22, 2002
Semiconductor light emitting device including a fluorescent material
TOSHIBA KK621 citations99
US6846686B2Jan 25, 2005
Semiconductor light-emitting device and method of manufacturing the same
TOSHIBA KK126 citations98
US6627521B2Sep 30, 2003
Semiconductor light emitting element and manufacturing method thereof
TOSHIBA KK86 citations98
US6479836B1Nov 12, 2002
Semiconductor light emitting device
TOSHIBA KK113 citations98
US5981977ANov 9, 1999
Nitride compound semiconductor light emitting element and its manufacturing method
TOSHIBA KK92 citations98
US5932896AAug 3, 1999
Nitride system semiconductor device with oxygen
TOSHIBA KK111 citations98
US5696389ADec 9, 1997
Light-emitting semiconductor device
TOSHIBA KK623 citations98
US5153889AOct 6, 1992
Semiconductor light emitting device
TOSHIBA KK140 citations98
US6576933B2Jun 10, 2003
Semiconductor light emitting device and method for manufacturing same
TOSHIBA KK85 citations97
US6815725B2Nov 9, 2004
Semiconductor light emitting device having a fluorescent material emitting light of a secondary wavelength
TOSHIBA KK48 citations96
US6674097B2Jan 6, 2004
Semiconductor light emitting device including a fluorescent material
TOSHIBA KK54 citations96
US6661030B2Dec 9, 2003
Semiconductor light emitting device including a fluorescent material
TOSHIBA KK51 citations96
US6504181B2Jan 7, 2003
Semiconductor light emitting element and manufacturing method thereof
TOSHIBA KK38 citations96
US6221684B1Apr 24, 2001
GaN based optoelectronic device and method for manufacturing the same
TOSHIBA KK45 citations96
US6204084B1Mar 20, 2001
Nitride system semiconductor device and method for manufacturing the same
TOSHIBA KK50 citations96
US5780873AJul 14, 1998
Semiconductor device capable of easily forming cavity and its manufacturing method
TOSHIBA KK68 citations96
US5693963ADec 2, 1997
Compound semiconductor device with nitride
TOSHIBA KK96 citations96
US5048035ASep 10, 1991
Semiconductor light emitting device
TOSHIBA KK94 citations96
US7355212B2Apr 8, 2008
Light emitting element
TOSHIBA KK11 citations93
US6359292B1Mar 19, 2002
Semiconductor light emitting element
TOSHIBA KK43 citations93
US6232137B1May 15, 2001
Semiconductor light emitting element and its manufacturing method
TOSHIBA KK18 citations93
US5466950ANov 14, 1995
Semiconductor light emitting device with short wavelength light selecting means
TOSHIBA KK47 citations93
US5459746AOct 17, 1995
Surface emission type semiconductor light-emitting device
TOSHIBA KK21 citations93
US5410159AApr 25, 1995
Light-emitting diode
TOSHIBA KK32 citations93
US5321712AJun 14, 1994
Semiconductor light-emitting device having a cladding layer composed of an InGaAlp-based compound
TOSHIBA KK21 citations93
US7141445B2Nov 28, 2006
Semiconductor light emitting device and method for manufacturing same
TOSHIBA KK28 citations92
US6956241B2Oct 18, 2005
Semiconductor light emitting element with improved light extraction efficiency
TOSHIBA KK38 citations92
US6791118B2Sep 14, 2004
Semiconductor light emitting element and manufacturing method thereof
TOSHIBA KK17 citations92
US6586773B2Jul 1, 2003
Semiconductor light-emitting device
TOSHIBA KK24 citations92
US6548834B2Apr 15, 2003
Semiconductor light emitting element
TOSHIBA KK40 citations92
US6320207B1Nov 20, 2001
Light emitting device having flat growth GaN layer
TOSHIBA KK25 citations92
US5930656AJul 27, 1999
Method of fabricating a compound semiconductor device
TOSHIBA KK25 citations92
US4809287AFeb 28, 1989
Double-heterostructure semiconductor with mesa stripe waveguide
TOSHIBA KK31 citations92
US4792958ADec 20, 1988
Semiconductor laser with mesa stripe waveguide structure
TOSHIBA KK27 citations92
US6030848AFeb 29, 2000
Method for manufacturing a GaN-based compound semiconductor light emitting device
TOSHIBA KK34 citations90
US7180088B2Feb 20, 2007
Nitride based semiconductor light-emitting device
TOSHIBA KK11 citations84
US6881601B2Apr 19, 2005
Nitride compound semiconductor, nitride compound semiconductor light emitting device and method of manufacturing the same
TOSHIBA KK12 citations84
US7714350B2May 11, 2010
Gallium nitride based semiconductor device and method of manufacturing same
TOSHIBA KK13 citations83
US4949349AAug 14, 1990
Double-heterostructure semiconductor with mesa stripe waveguide
TOSHIBA KK16 citations82
US4835117AMay 30, 1989
Manufacturing method for semiconductor laser with mesa stripe
TOSHIBA KK18 citations82
US7221002B2May 22, 2007
Light emitting element, method of manufacturing the same, and semiconductor device having light emitting element
TOSHIBA KK5 citations74
US7179671B2Feb 20, 2007
Light emitting element, method of manufacturing the same, and semiconductor device having light emitting element
TOSHIBA KK6 citations74
US7138664B2Nov 21, 2006
Semiconductor device having a light emitting element
TOSHIBA KK6 citations74
US7135714B2Nov 14, 2006
Light emitting element, method of manufacturing the same, and semiconductor device having light emitting element
TOSHIBA KK6 citations74
US6828593B2Dec 7, 2004
Semiconductor light emitting element and its manufacturing method
TOSHIBA KK6 citations74
US6693307B2Feb 17, 2004
Semiconductor light emitting element
TOSHIBA KK10 citations74
TOKYO SHIBAURA ELECTRIC CO
1 patentKABUSHIKI KASIHA TOSHIBA
1 patentTOSHBA KK
1 patentShowing the top 50 of 78 patents by PatentIndex Score.