Inventor · disambiguated record
Hideto Sugawara
Also filed as: SUGAWARA HIDETO
78 granted patents·11 pending applications·3,390 citations·filing 1987–2024
99Inventor score
Files withTOSHIBA KK80SUGAWARA HIDETO5KABUSHIKI KASIHA TOSHIBA1KAI KENICHIRO1TOKYO SHIBAURA ELECTRIC CO1
Top patents by PatentIndex Score
89 records- 0199US6340824B1Semiconductor light emitting device including a fluorescent materialTOSHIBA KK·Filed 1998·Granted Jan 22, 2002·621 cites·32 claims
- 0298US5696389ALight-emitting semiconductor deviceTOSHIBA KK·Filed 1995·Granted Dec 9, 1997·623 cites·21 claims
- 0397US6825502B2Light emitting element, method of manufacturing the same, and semiconductor device having light emitting elementTOSHIBA KK·Filed 2003·Granted Nov 30, 2004·95 cites·4 claims
- 0495US6627521B2Semiconductor light emitting element and manufacturing method thereofTOSHIBA KK·Filed 2002·Granted Sep 30, 2003·86 cites·4 claims
- 0595US6576933B2Semiconductor light emitting device and method for manufacturing sameTOSHIBA KK·Filed 2001·Granted Jun 10, 2003·85 cites·24 claims
- 0694US6846686B2Semiconductor light-emitting device and method of manufacturing the sameTOSHIBA KK·Filed 2003·Granted Jan 25, 2005·126 cites·9 claims
- 0793US5153889ASemiconductor light emitting deviceTOSHIBA KK·Filed 1991·Granted Oct 6, 1992·140 cites·10 claims
- 0892US11114586B2Semiconductor light emitting deviceTOSHIBA KK·Filed 2019·Granted Sep 7, 2021·3 cites·9 claims
- 0992US6674097B2Semiconductor light emitting device including a fluorescent materialTOSHIBA KK·Filed 2001·Granted Jan 6, 2004·54 cites·20 claims
- 1092US6479836B1Semiconductor light emitting deviceTOSHIBA KK·Filed 2000·Granted Nov 12, 2002·113 cites·20 claims
- 1191US5981977ANitride compound semiconductor light emitting element and its manufacturing methodTOSHIBA KK·Filed 1998·Granted Nov 9, 1999·92 cites·18 claims
- 1290US6815725B2Semiconductor light emitting device having a fluorescent material emitting light of a secondary wavelengthTOSHIBA KK·Filed 2003·Granted Nov 9, 2004·48 cites·12 claims
- 1390US6661030B2Semiconductor light emitting device including a fluorescent materialTOSHIBA KK·Filed 2001·Granted Dec 9, 2003·51 cites·30 claims
- 1489US9312444B2Semiconductor light emitting device and manufacturing method thereofTOSHIBA KK·Filed 2013·Granted Apr 12, 2016·6 cites·20 claims
- 1589US7355212B2Light emitting elementTOSHIBA KK·Filed 2005·Granted Apr 8, 2008·11 cites·4 claims
- 1689US6956241B2Semiconductor light emitting element with improved light extraction efficiencyTOSHIBA KK·Filed 2003·Granted Oct 18, 2005·38 cites·8 claims
- 1789US5048035ASemiconductor light emitting deviceTOSHIBA KK·Filed 1990·Granted Sep 10, 1991·94 cites·14 claims
- 1888US6504181B2Semiconductor light emitting element and manufacturing method thereofTOSHIBA KK·Filed 2000·Granted Jan 7, 2003·38 cites·8 claims
- 1988US5932896ANitride system semiconductor device with oxygenTOSHIBA KK·Filed 1997·Granted Aug 3, 1999·111 cites·16 claims
- 2087US7714350B2Gallium nitride based semiconductor device and method of manufacturing sameTOSHIBA KK·Filed 2006·Granted May 11, 2010·13 cites·20 claims
- 2185US4809287ADouble-heterostructure semiconductor with mesa stripe waveguideTOSHIBA KK·Filed 1987·Granted Feb 28, 1989·31 cites·23 claims
- 2284US5693963ACompound semiconductor device with nitrideTOSHIBA KK·Filed 1995·Granted Dec 2, 1997·96 cites·20 claims
- 2383US7141445B2Semiconductor light emitting device and method for manufacturing sameTOSHIBA KK·Filed 2004·Granted Nov 28, 2006·28 cites·13 claims
- 2481US6548834B2Semiconductor light emitting elementTOSHIBA KK·Filed 2002·Granted Apr 15, 2003·40 cites·23 claims
- 2580US8502350B2Stacked layers of nitride semiconductor and method for manufacturing the sameSUGAWARA HIDETO·Filed 2011·Granted Aug 6, 2013·4 cites·20 claims
- 2680US6020602AGaN based optoelectronic device and method for manufacturing the sameTOKYO SHIBAURA ELECTRIC CO·Filed 1997·Granted Feb 1, 2000·61 cites·11 claims
- 2780US5466950ASemiconductor light emitting device with short wavelength light selecting meansTOSHIBA KK·Filed 1994·Granted Nov 14, 1995·47 cites·18 claims
- 2879US5780873ASemiconductor device capable of easily forming cavity and its manufacturing methodTOSHIBA KK·Filed 1996·Granted Jul 14, 1998·68 cites·14 claims
- 2976US6791118B2Semiconductor light emitting element and manufacturing method thereofTOSHIBA KK·Filed 2003·Granted Sep 14, 2004·17 cites·10 claims
- 3076US6586773B2Semiconductor light-emitting deviceTOSHIBA KK·Filed 2001·Granted Jul 1, 2003·24 cites·7 claims
- 3176US4835117AManufacturing method for semiconductor laser with mesa stripeTOSHIBA KK·Filed 1988·Granted May 30, 1989·18 cites·7 claims
- 3275US6204084B1Nitride system semiconductor device and method for manufacturing the sameTOSHIBA KK·Filed 1999·Granted Mar 20, 2001·50 cites·12 claims
- 3374US6221684B1GaN based optoelectronic device and method for manufacturing the sameTOSHIBA KK·Filed 1999·Granted Apr 24, 2001·45 cites·12 claims
- 3474US4792958ASemiconductor laser with mesa stripe waveguide structureTOSHIBA KK·Filed 1987·Granted Dec 20, 1988·27 cites·14 claims
- 3573US5410159ALight-emitting diodeTOSHIBA KK·Filed 1993·Granted Apr 25, 1995·32 cites·10 claims
- 3672US6359292B1Semiconductor light emitting elementTOSHIBA KK·Filed 1999·Granted Mar 19, 2002·43 cites·13 claims
- 3771US7333523B2Semiconductor laser deviceTOSHIBA KK·Filed 2006·Granted Feb 19, 2008·3 cites·19 claims
- 3870US4949349ADouble-heterostructure semiconductor with mesa stripe waveguideTOSHIBA KK·Filed 1988·Granted Aug 14, 1990·16 cites·17 claims
- 3970US2024243222A1Semiconductor light-emitting device and optical coupling deviceTOSHIBA KK·Filed 2024·Application pending·0 cites
- 4068US6590233B2Semiconductor light emitting deviceKABUSHIKI KASIHA TOSHIBA·Filed 2001·Granted Jul 8, 2003·15 cites·18 claims
- 4166US11694900B2Semiconductor device and method for manufacturing the sameTOSHIBA KK·Filed 2021·Granted Jul 4, 2023·0 cites·14 claims
- 4266US6881601B2Nitride compound semiconductor, nitride compound semiconductor light emitting device and method of manufacturing the sameTOSHIBA KK·Filed 2003·Granted Apr 19, 2005·12 cites·8 claims
- 4366US2025089406A1Semiconductor light-emitting device and method for manufacturing sameTOSHIBA KK·Filed 2024·Application pending·0 cites
- 4465US8004065B2Nitride semiconductor and method for manufacturing sameTOSHIBA KK·Filed 2008·Granted Aug 23, 2011·1 cites·15 claims
- 4565US7180088B2Nitride based semiconductor light-emitting deviceTOSHIBA KK·Filed 2003·Granted Feb 20, 2007·11 cites·11 claims
- 4665US6399963B2Semiconductor light emitting element and its manufacturing methodTOSHIBA KK·Filed 2001·Granted Jun 4, 2002·7 cites·7 claims
- 4765US5459746ASurface emission type semiconductor light-emitting deviceTOSHIBA KK·Filed 1993·Granted Oct 17, 1995·21 cites·18 claims
- 4864US7179671B2Light emitting element, method of manufacturing the same, and semiconductor device having light emitting elementTOSHIBA KK·Filed 2004·Granted Feb 20, 2007·6 cites·1 claims
- 4964US7138664B2Semiconductor device having a light emitting elementTOSHIBA KK·Filed 2004·Granted Nov 21, 2006·6 cites·20 claims
- 5064US7135714B2Light emitting element, method of manufacturing the same, and semiconductor device having light emitting elementTOSHIBA KK·Filed 2004·Granted Nov 14, 2006·6 cites·16 claims
Showing the top 50 of 89 patent records by PatentIndex Score.
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