Inventor · disambiguated record
Koji Kawai
Also filed as: KAWAI KOJI
97 granted patents·18 pending applications·911 citations·filing 1986–2024
99Inventor score
Files withSEIKO EPSON CORP24MIYOSHI YUSHI KK21HAMAMATSU PHOTONICS KK14MITSUI CHEMICALS INC13TOSHIBA KK10
Top patents by PatentIndex Score
115 records- 0197US7449533B2Metallocene compound, process for preparing metallocene compound, olefin polymerization catalyst, process for preparing polyolefin, and polyolefinMITSUI CHEMICALS INC·Filed 2005·Granted Nov 11, 2008·39 cites·3 claims
- 0295US11945802B2Additive for imparting ultraviolet absorbency and/or high refractive index to matrix, and resin member using sameMIYOSHI YUSHI KK·Filed 2022·Granted Apr 2, 2024·2 cites·8 claims
- 0395US10316024B2Additive for imparting ultraviolet absorbency and/or high refractive index to matrix, and resin member using sameMIYOSHI YUSHI KK·Filed 2015·Granted Jun 11, 2019·8 cites·27 claims
- 0495US7488789B2Propylene copolymer, polypropylene composition, and uses thereof, transition metal compounds and catalyst for olefin polymerizationMITSUI CHEMICALS INC·Filed 2003·Granted Feb 10, 2009·45 cites·4 claims
- 0595US5359255ADischarge tube having a double-tube type structureHAMAMATSU PHOTONICS KK·Filed 1992·Granted Oct 25, 1994·128 cites·33 claims
- 0694US11370780B2Additive for imparting ultraviolet absorbency and/or high refractive index to matrix, and resin member using sameMIYOSHI YUSHI KK·Filed 2019·Granted Jun 28, 2022·2 cites·36 claims
- 0794US9707768B2Plug member and liquid container unitSEIKO EPSON CORP·Filed 2016·Granted Jul 18, 2017·10 cites·19 claims
- 0893US11401400B2Plastic lensTOKAI OPTICAL CO LTD·Filed 2015·Granted Aug 2, 2022·14 cites·19 claims
- 0993US9707769B2Recording apparatusSEIKO EPSON CORP·Filed 2016·Granted Jul 18, 2017·4 cites·15 claims
- 1092US7678934B2Propylene copolymer, polypropylene composition and uses thereof, transition metal compound and olefin polymerization catalystMITSUI CHEMICALS INC·Filed 2008·Granted Mar 16, 2010·11 cites·2 claims
- 1192US6939928B1Metallocene compound, process for producing metallocene compound, olefin polymerization catalyst, process for producing polyolefin, and polyolefinMITSUI CHEMICALS INC·Filed 2000·Granted Sep 6, 2005·101 cites·14 claims
- 1290US10343409B2Liquid jet apparatus, tank unit, and printerSEIKO EPSON CORP·Filed 2016·Granted Jul 9, 2019·5 cites·15 claims
- 1388US12497388B2Additive for imparting ultraviolet absorbency and/or high refractive index to matrix, and resin member using sameMIYOSHI YUSHI KK·Filed 2024·Granted Dec 16, 2025·0 cites·19 claims
- 1488US11186568B2Additive for imparting ultraviolet absorbency and/or high refractive index to matrix, and resin member using sameMIYOSHI YUSHI KK·Filed 2019·Granted Nov 30, 2021·2 cites·15 claims
- 1588US2025101005A1Additive for imparting ultraviolet absorbency and/or high refractive index to matrix, and resin member using sameMIYOSHI YUSHI KK·Filed 2024·Application pending·0 cites
- 1687US12371632B2Additive or composition for imparting lubricityMIYOSHI YUSHI KK·Filed 2024·Granted Jul 29, 2025·0 cites·30 claims
- 1787US7393965B2Crosslinked metallocene compound for olefin polymerization and method of polymerizing olefin with the sameMITSUI CHEMICALS INC·Filed 2003·Granted Jul 1, 2008·29 cites·16 claims
- 1887US6462855B1Light beam scanning apparatusTOSHIBA TEC KK·Filed 2000·Granted Oct 8, 2002·35 cites·19 claims
- 1986US6549265B1Image formation apparatus and method of stabilizing the emission level of semiconductor laser source used thereinTOSHIBA TEC KK·Filed 2000·Granted Apr 15, 2003·31 cites·12 claims
- 2084US7081493B2Automotive part made of polypropylene resin compositionMITSUI CHEMICALS INC·Filed 2002·Granted Jul 25, 2006·23 cites·8 claims
- 2184US6489265B1Reversible thermosensitive recording medium, method of producing the medium, information recording devices using the medium, and image formation and erasing method using the mediumRICOH KK·Filed 2000·Granted Dec 3, 2002·16 cites·27 claims
- 2282US7961361B2Image reading apparatus, image reading method and image reading programTOSHIBA KK·Filed 2007·Granted Jun 14, 2011·7 cites·17 claims
- 2381US6174836B1Reversible thermosensitive recording medium, method of producing the medium, information recording devices using the medium, and image formation and erasing method using the mediumRICOH KK·Filed 1998·Granted Jan 16, 2001·29 cites·11 claims
- 2479US7619030B2Automobile part of polypropylene resin compositionMITSUI CHEMICALS INC·Filed 2006·Granted Nov 17, 2009·4 cites·3 claims
- 2578US6509921B2Light beam scanning apparatus with multiple sensors and patternsTOSHIBA TEC KK·Filed 2001·Granted Jan 21, 2003·17 cites·20 claims
- 2678US6426767B1Image forming apparatus for maintaining a constant beam scanning stateTOSHIBA TEC KK·Filed 2000·Granted Jul 30, 2002·15 cites·4 claims
- 2777US10538095B2Droplet ejecting apparatusSEIKO EPSON CORP·Filed 2017·Granted Jan 21, 2020·1 cites·16 claims
- 2877USD841085SPrinterSEIKO EPSON CORP·Filed 2017·Granted Feb 19, 2019·13 cites·1 claims
- 2977US9240313B2Target for ultraviolet light generation, electron beam-excited ultraviolet light source, and production method for target for ultraviolet light generationHAMAMATSU PHOTONICS KK·Filed 2013·Granted Jan 19, 2016·3 cites·18 claims
- 3077US2025090437A1Cosmetic compounding agent, cosmetic and production method thereofMIYOSHI YUSHI KK·Filed 2024·Application pending·0 cites
- 3176USD1067940SDisplay panel with a computer-generated iconLENOVO SINGAPORE PTE LTD·Filed 2023·Granted Mar 25, 2025·5 cites·1 claims
- 3276US10432108B2Power supply systemMURATA MANUFACTURING CO·Filed 2019·Granted Oct 1, 2019·2 cites·16 claims
- 3376US7850287B2Liquid ejection apparatusBROTHER IND LTD·Filed 2007·Granted Dec 14, 2010·4 cites·15 claims
- 3476US7241848B2Process for preparing low molecular weight olefin (CO)polymer and polymerization catalyst used thereforMITSUI CHEMICALS INC·Filed 2003·Granted Jul 10, 2007·8 cites·7 claims
- 3576US6646668B2Image forming apparatus for maintaining a constant beam scanning stateTOSHIBA KK·Filed 2002·Granted Nov 11, 2003·12 cites·18 claims
- 3674US8147145B2Journal bearing deviceINOUE TOMOAKI·Filed 2009·Granted Apr 3, 2012·6 cites·11 claims
- 3774US6870317B2Gas discharge tubeHAMAMATSU PHOTONICS KK·Filed 2001·Granted Mar 22, 2005·13 cites·5 claims
- 3873USD839342SPrinterSEIKO EPSON CORP·Filed 2018·Granted Jan 29, 2019·10 cites·1 claims
- 3973US6639620B2Light beam scanning apparatusTOSHIBA KK·Filed 2001·Granted Oct 28, 2003·12 cites·64 claims
- 4072US7429826B2Indirectly heated electrode for gas discharge tube, gas discharge tube using said indirectly heated electrode, and lighting device for said gas discharge tubeHAMAMATSU PHOTONICS KK·Filed 2005·Granted Sep 30, 2008·2 cites·43 claims
- 4171US12180190B2Additive for imparting ultraviolet absorbency and/or high refractive index to matrix, and resin member using sameMIYOSHI YUSHI KK·Filed 2019·Granted Dec 31, 2024·0 cites·9 claims
- 4271USD802050SInk tank container for a printerSEIKO EPSON CORP·Filed 2016·Granted Nov 7, 2017·13 cites·1 claims
- 4371US8335612B2Falling prevention controlling device and computer programTSUJI SHIGERU·Filed 2011·Granted Dec 18, 2012·7 cites·12 claims
- 4470US9318312B2Ultraviolet light generating target, electron-beam-excited ultraviolet light source, and method for producing ultraviolet light generating targetHONDA YOSHINORI·Filed 2012·Granted Apr 19, 2016·3 cites·11 claims
- 4569US5191260AGas discharge tube providing improved flow line of electronsHAMAMATSU PHOTONICS KK·Filed 1991·Granted Mar 2, 1993·22 cites·10 claims
- 4669US2023340356A1Additive or composition for imparting lubricityMIYOSHI YUSHI KK·Filed 2021·Application pending·0 cites
- 4768USD1025050SNotebook computer with camera bumpLENOVO SINGAPORE PTE LTD·Filed 2021·Granted Apr 30, 2024·4 cites·1 claims
- 4868USD829276SPrinterSEIKO EPSON CORP·Filed 2017·Granted Sep 25, 2018·11 cites·1 claims
- 4968US6956326B2Gas discharge tube having insulator between aperture membersHAMAMATSU PHOTONICS KK·Filed 2001·Granted Oct 18, 2005·7 cites·21 claims
- 5068US4738083AApparatus for supplying articles to a high-speed packing machineMITSUBISHI HEAVY IND LTD·Filed 1986·Granted Apr 19, 1988·23 cites·3 claims
Showing the top 50 of 115 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →