Inventor · disambiguated record
Shigeru Nakagawa
Also filed as: NAKAGAWA SHIGERU · NAKAGAWA SHIGERU M
50 granted patents·6 pending applications·1,042 citations·filing 1981–2025
98Inventor score
Top patents by PatentIndex Score
56 records- 0198US11934938B2Neural network for chemical compoundsIBM·Filed 2020·Granted Mar 19, 2024·3 cites·20 claims
- 0298US7262436B2III-nitride semiconductor light emitting device having a silver p-contactPHILIPS LUMILEDS LIGHTING CO·Filed 2005·Granted Aug 28, 2007·70 cites·11 claims
- 0397US9484482B2Efficient optical (light) couplingIBM·Filed 2015·Granted Nov 1, 2016·41 cites·17 claims
- 0496US6194743B1Nitride semiconductor light emitting device having a silver p-contactAGILENT TECHNOLOGIES INC·Filed 1998·Granted Feb 27, 2001·201 cites·5 claims
- 0595US9341797B2Optical module and method for manufacturing optical moduleIBM·Filed 2014·Granted May 17, 2016·17 cites·20 claims
- 0694US10366779B2Scheme of new materialsIBM·Filed 2015·Granted Jul 30, 2019·14 cites·20 claims
- 0793US9429711B2Optical device, optical connector assembly, and optical connecting methodIBM·Filed 2015·Granted Aug 30, 2016·10 cites·14 claims
- 0893US7501294B1VCSEL for high speed lower power optical linkIBM·Filed 2008·Granted Mar 10, 2009·25 cites·1 claims
- 0992US6900472B2Semiconductor light emitting device having a silver p-contactLUMILEDS LIGHTING LLC·Filed 2001·Granted May 31, 2005·63 cites·14 claims
- 1092US6375255B1Rear passenger seat in vehicle compartmentTOYOTA MOTOR CO LTD·Filed 2000·Granted Apr 23, 2002·102 cites·5 claims
- 1191US6687281B2Double intracavity contacted long-wavelength VCSELsUNIV CALIFORNIA·Filed 2001·Granted Feb 3, 2004·23 cites·51 claims
- 1290US9523816B2Optical device and manufacturing method thereforIBM·Filed 2015·Granted Dec 20, 2016·6 cites·9 claims
- 1389US8542963B2Method for manufacturing optical coupling element, optical transmission substrate, optical coupling component, coupling method, and optical interconnect systemNAKAGAWA SHIGERU·Filed 2010·Granted Sep 24, 2013·12 cites·16 claims
- 1488US6653158B2Double intracavity contacted long-wavelength VCSELs and method of fabricating sameUNIV CALIFORNIA·Filed 2001·Granted Nov 25, 2003·19 cites·55 claims
- 1587US9702316B2Spark-ignition direct injection engineMAZDA MOTOR·Filed 2013·Granted Jul 11, 2017·8 cites·14 claims
- 1686US4585681AFrost damage proofed pileNIPPON KOKAN KK·Filed 1984·Granted Apr 29, 1986·45 cites·36 claims
- 1785US7923275B2Surface emitting laser and manufacturing method thereofIBM·Filed 2009·Granted Apr 12, 2011·7 cites·6 claims
- 1885US6714573B2Contact scheme for intracavity-contacted vertical-cavity surface-emitting laserUNIV CALIFORNIA·Filed 2001·Granted Mar 30, 2004·14 cites·61 claims
- 1985US4818148AFrost damage proofed pileNIPPON KOKAN KK·Filed 1988·Granted Apr 4, 1989·58 cites·11 claims
- 2082US6810064B1Heat spreading layers for vertical cavity surface emitting lasersUNIV CALIFORNIA·Filed 2001·Granted Oct 26, 2004·18 cites·31 claims
- 2181US9389366B2Optical modules for wavelength multiplexingIBM·Filed 2014·Granted Jul 12, 2016·4 cites·12 claims
- 2280US10876488B2Failure diagnosis device for in-cylinder pressure sensorMAZDA MOTOR·Filed 2019·Granted Dec 29, 2020·2 cites·14 claims
- 2379US9952392B2Optical module and method for manufacturing optical moduleIBM·Filed 2017·Granted Apr 24, 2018·2 cites·12 claims
- 2478US10915808B2Neural network for chemical compoundsIBM·Filed 2016·Granted Feb 9, 2021·3 cites·17 claims
- 2578US9720190B2Optical module and method for manufacturing optical moduleIBM·Filed 2016·Granted Aug 1, 2017·2 cites·12 claims
- 2677US6239490B1P-contact for a Group III-nitride semiconductor device and method of making sameAGILENT TECHNOLOGIES INC·Filed 1998·Granted May 29, 2001·44 cites·5 claims
- 2777US5729567AMultilayer film structure and vertical cavity surface emitting lasersHEWLETT PACKARD CO·Filed 1996·Granted Mar 17, 1998·46 cites·20 claims
- 2876US9977191B2Optical connecting methodIBM·Filed 2015·Granted May 22, 2018·2 cites·8 claims
- 2976US6486984B1Wavelength monitor using hybrid approachAGILENT TECHNOLOGIES INC·Filed 1999·Granted Nov 26, 2002·52 cites·14 claims
- 3076US4643912AMethod for forming a metal layer with pattern on a substrateMARUI IND·Filed 1984·Granted Feb 17, 1987·33 cites·4 claims
- 3175US8442362B2Method for manufacturing optical coupling element, optical transmission substrate, optical coupling component, coupling method, and optical interconnect systemNAKAGAWA SHIGERU·Filed 2012·Granted May 14, 2013·3 cites·15 claims
- 3273US10815917B2Failure diagnosis device for in-cylinder pressure sensorMAZDA MOTOR·Filed 2019·Granted Oct 27, 2020·2 cites·14 claims
- 3373US6841407B2Method for aperturing vertical-cavity surface-emitting lasers (VCSELs)UNIV CALIFORNIA·Filed 2001·Granted Jan 11, 2005·7 cites·93 claims
- 3469US5497118ASignal selector circuit and signal-generating circuitHEWLETT PACKARD CO·Filed 1993·Granted Mar 5, 1996·21 cites·13 claims
- 3563US6973238B2Optical switch and optical communication systemFIBEST LTD·Filed 2003·Granted Dec 6, 2005·7 cites·17 claims
- 3660US10240491B2Control system of engineMAZDA MOTOR·Filed 2016·Granted Mar 26, 2019·1 cites·12 claims
- 3759US4663869ADisplay for displaying images in three dimensionsMARUI IND·Filed 1985·Granted May 12, 1987·21 cites·18 claims
- 3858US2024225927A9Wheelchair fixing device and wheelchair fixing systemTOYOTA MOTOR CO LTD·Filed 2023·Application pending·0 cites
- 3957US2002128882A1Vehicle insurance premium calculation system, on-board apparatus, and server apparatusTOYOTA MOTOR CO LTD·Filed 2002·Application pending·0 cites
- 4056US9304255B2Optical device and manufacturing method thereforIBM·Filed 2015·Granted Apr 5, 2016·0 cites·5 claims
- 4156US9274288B2Connector for multilayered optical waveguideIBM·Filed 2013·Granted Mar 1, 2016·0 cites·20 claims
- 4255US10934962B2Abnormality diagnosis device for in-cylinder pressure sensorMAZDA MOTOR·Filed 2019·Granted Mar 2, 2021·0 cites·11 claims
- 4355US10767592B2Failure diagnosis device for in-cylinder pressure sensorMAZDA MOTOR·Filed 2019·Granted Sep 8, 2020·0 cites·10 claims
- 4455US10025040B2Connector for multilayered optical waveguideIBM·Filed 2016·Granted Jul 17, 2018·0 cites·20 claims
- 4554US9927576B2Optical modules for wavelength multiplexingIBM·Filed 2016·Granted Mar 27, 2018·0 cites·11 claims
- 4652US2025305464A1Engine system with combustion control for reducing combustion variationsMAZDA MOTOR·Filed 2025·Application pending·0 cites
- 4752US2008151959A1Surface emitting laser and manufacturing method thereofIBM·Filed 2007·Application pending·0 cites
- 4851US7911686B2Optical module and optical communication systemFIBEST LTD·Filed 2003·Granted Mar 22, 2011·3 cites·20 claims
- 4942US4417411AInformation display deviceMARUI IND·Filed 1981·Granted Nov 29, 1983·12 cites·8 claims
- 5038US10859028B2Engine fuel injection control deviceMAZDA MOTOR·Filed 2016·Granted Dec 8, 2020·0 cites·17 claims
Showing the top 50 of 56 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Shigeru Nakagawa files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →