Inventor · disambiguated record
Masashi Tatsukawa
Also filed as: TATSUKAWA MASASHI
49 granted patents·4 pending applications·813 citations·filing 1994–2023
98Inventor score
Files withKOITO MFG CO LTD45TATSUKAWA MASASHI3SHIBATA HIROKI2KANSAI PAINT CO LTD1KOIKO MANUFACTURING CO LTD1
Top patents by PatentIndex Score
53 records- 0193US7097334B2Light source unit for vehicular lampKOITO MFG CO LTD·Filed 2003·Granted Aug 29, 2006·65 cites·14 claims
- 0291US7387416B2Vehicular illumination lamp with primary and secondary light sourcesKOITO MFG CO LTD·Filed 2005·Granted Jun 17, 2008·30 cites·6 claims
- 0391US6948836B2Light source unit having orthogonally disposed semiconductor light emitterKOITO MFG CO LTD·Filed 2003·Granted Sep 27, 2005·100 cites·42 claims
- 0489US6951416B2Vehicle headlampKOITO MFG CO LTD·Filed 2003·Granted Oct 4, 2005·46 cites·8 claims
- 0589US6882110B2Headlamp for vehicleKOITO MFG CO LTD·Filed 2003·Granted Apr 19, 2005·48 cites·7 claims
- 0688US6891333B2Vehicle headlampKOITO MFG CO LTD·Filed 2003·Granted May 10, 2005·44 cites·7 claims
- 0786US7168836B2Vehicle illumination lampKOITO MFG CO LTD·Filed 2005·Granted Jan 30, 2007·20 cites·4 claims
- 0886US7070312B2Lamp unit and vehicle headlamp using the sameKOITO MFG CO LTD·Filed 2004·Granted Jul 4, 2006·38 cites·20 claims
- 0985US7690818B2Vehicle headlampKOITO MFG CO LTD·Filed 2007·Granted Apr 6, 2010·16 cites·15 claims
- 1085US7261448B2Vehicular headlampKOITO MFG CO LTD·Filed 2004·Granted Aug 28, 2007·36 cites·14 claims
- 1184US7736036B2Lamp unit of vehicle headlampKOITO MFG CO LTD·Filed 2007·Granted Jun 15, 2010·13 cites·11 claims
- 1284US7618174B2Vehicle lampKOITO MFG CO LTD·Filed 2008·Granted Nov 17, 2009·22 cites·4 claims
- 1382US9481291B2Vehicle lampKOITO MFG CO LTD·Filed 2014·Granted Nov 1, 2016·5 cites·16 claims
- 1482US8585265B2Vehicle headlampSHIBATA HIROKI·Filed 2012·Granted Nov 19, 2013·6 cites·4 claims
- 1581US7201506B2Vehicular headlamp with semiconductor light emitting elements and electric discharge bulbKOITO MFG CO LTD·Filed 2004·Granted Apr 10, 2007·28 cites·12 claims
- 1679US7131759B2Vehicular lamp and light source moduleKOITO MFG CO LTD·Filed 2004·Granted Nov 7, 2006·25 cites·5 claims
- 1778US8960978B2Vehicular lampKOITO MFG CO LTD·Filed 2013·Granted Feb 24, 2015·4 cites·6 claims
- 1878US8632228B2Vehicle headlampSHIBATA HIROKI·Filed 2012·Granted Jan 21, 2014·5 cites·5 claims
- 1976US7168837B2Vehicular headlamp and semiconductor light emitting elementKOITO MFG CO LTD·Filed 2004·Granted Jan 30, 2007·21 cites·19 claims
- 2075US7922375B2Vehicle lighting device having light transmitting member with annular mirror-finishKOITO MFG CO LTD·Filed 2009·Granted Apr 12, 2011·9 cites·6 claims
- 2175US7736039B2Vehicle lampKOITO MFG CO LTD·Filed 2007·Granted Jun 15, 2010·9 cites·16 claims
- 2274US7255467B2Vehicular headlamp and light emission moduleKOITO MFG CO LTD·Filed 2004·Granted Aug 14, 2007·16 cites·15 claims
- 2373US10113702B2Vehicle lighting apparatusKOITO MFG CO LTD·Filed 2013·Granted Oct 30, 2018·3 cites·12 claims
- 2473US7387417B2Vehicular headlampKOITO MFG CO LTD·Filed 2004·Granted Jun 17, 2008·27 cites·15 claims
- 2572US7527405B2Infrared projector for vehicleKOITO MFG CO LTD·Filed 2005·Granted May 5, 2009·9 cites·17 claims
- 2672US6634778B2Vehicular headlamp for controlling light distribution of vehicular headlamp having improved synthesized light distribution patternKOITO MFG CO LTD·Filed 2002·Granted Oct 21, 2003·15 cites·8 claims
- 2771US6837601B2Lighting system for vehicleKOITO MFG CO LTD·Filed 2002·Granted Jan 4, 2005·14 cites·7 claims
- 2871US6422726B1Vehicle headlampKOITO MFG CO LTD·Filed 2000·Granted Jul 23, 2002·20 cites·6 claims
- 2970US7357546B2Vehicular headlamp employing semiconductor light-emitting element having improved light distributionKOITO MFG CO LTD·Filed 2003·Granted Apr 15, 2008·15 cites·10 claims
- 3070US6578996B1Method of designing reflective surface of reflector in vehicle lampKOITO MFG CO LTD·Filed 2001·Granted Jun 17, 2003·15 cites·3 claims
- 3169US7210834B2Vehicular lamp and light source moduleKOITO MFG CO LTD·Filed 2004·Granted May 1, 2007·14 cites·11 claims
- 3267US7631997B2Vehicular headlamp and light emission moduleKOITO MFG CO LTD·Filed 2007·Granted Dec 15, 2009·4 cites·7 claims
- 3364US8888344B2Vehicle lamp unitTATSUKAWA MASASHI·Filed 2011·Granted Nov 18, 2014·2 cites·5 claims
- 3463US6817744B2Vehicle lampKOITO MFG CO LTD·Filed 2003·Granted Nov 16, 2004·9 cites·24 claims
- 3559US11067244B2Vehicle headlamp having a high beam light source and an inclined laser diodeKOITO MFG CO LTD·Filed 2020·Granted Jul 20, 2021·0 cites·7 claims
- 3659US8092058B2Vehicle lamp unitTATSUKAWA MASASHI·Filed 2009·Granted Jan 10, 2012·2 cites·4 claims
- 3757US7153009B2Vehicular headlampKOITO MFG CO LTD·Filed 2004·Granted Dec 26, 2006·6 cites·3 claims
- 3857US7128453B2Vehicular headlampKOITO MFG CO LTD·Filed 2004·Granted Oct 31, 2006·14 cites·6 claims
- 3955US2023143394A1Insulation paste for lithium ion secondary battery current collector and method for producing insulation layerKANSAI PAINT CO LTD·Filed 2021·Application pending·0 cites
- 4054US10302268B2Vehicular headlampKOITO MFG CO LTD·Filed 2017·Granted May 28, 2019·0 cites·12 claims
- 4153US9772082B2Vehicular lampKOITO MFG CO LTD·Filed 2014·Granted Sep 26, 2017·0 cites·10 claims
- 4252US8192062B2Vehicular lampTATSUKAWA MASASHI·Filed 2009·Granted Jun 5, 2012·0 cites·3 claims
- 4352US7291238B2Method of manufacturing liquid crystal display panel and liquid crystal display panel manufacturing apparatusTOSHIBA MATSUSHITA DISPLAY TEC·Filed 2004·Granted Nov 6, 2007·4 cites·6 claims
- 4451US6168297B1Vehicular headlamp assembly with discharge bulb and glare protection filmKOITO MFG CO LTD·Filed 1999·Granted Jan 2, 2001·13 cites·11 claims
- 4550US6821004B2Headlamp for vehicleKOITO MFG CO LTD·Filed 2002·Granted Nov 23, 2004·4 cites·7 claims
- 4650US2015138822A1Automotive lampKOITO MFG CO LTD·Filed 2014·Application pending·0 cites
- 4748US2025383059A1Vehicle lampKOITO MFG CO LTD·Filed 2023·Application pending·0 cites
- 4847US5746491AHead lamp for vehiclesKOITO MFG CO LTD·Filed 1996·Granted May 5, 1998·10 cites·10 claims
- 4947US2007177400A1Vehicle lighting deviceKOITO MFG CO LTD·Filed 2007·Application pending·0 cites
- 5045US6565250B2Method of designing reflective surface of reflector in vehicle lampKOITO MFG CO LTD·Filed 2001·Granted May 20, 2003·1 cites·5 claims
Showing the top 50 of 53 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →