Inventor · disambiguated record
Eiji Shirai
Also filed as: SHIRAI EIJI
51 granted patents·5 pending applications·573 citations·filing 1985–2025
98Inventor score
Top patents by PatentIndex Score
56 records- 0198US4858572ADevice for adjusting an angular phase difference between two elementsAISIN SEIKI·Filed 1988·Granted Aug 22, 1989·212 cites·9 claims
- 0294US7528218B2Polyester for tonerKAO CORP·Filed 2006·Granted May 5, 2009·15 cites·14 claims
- 0391US7390605B2Resin binder for tonerKAO CORP·Filed 2005·Granted Jun 24, 2008·13 cites·18 claims
- 0489US11759623B2Implantable medical devices including low frequency and high frequency clocks and related methodsPACESETTER INC·Filed 2020·Granted Sep 19, 2023·2 cites·25 claims
- 0589US6538591B2Signal transfer apparatus, and imaging apparatus and radiation image pick-up system using itCANON KK·Filed 2001·Granted Mar 25, 2003·39 cites·48 claims
- 0687US11330981B2Method and apparatus for a burst operation pressure sensorPACESETTER INC·Filed 2018·Granted May 17, 2022·7 cites·21 claims
- 0784US5361734AValve control device for an engineAISIN SEIKI·Filed 1993·Granted Nov 8, 1994·32 cites·1 claims
- 0882US6890695B2Toner for electrophotographyKAO CORP·Filed 2002·Granted May 10, 2005·19 cites·11 claims
- 0982US6864030B2TonerKAO CORP·Filed 2002·Granted Mar 8, 2005·19 cites·13 claims
- 1080US4790796AFree piston type auto-tensionerAISIN SEIKI·Filed 1987·Granted Dec 13, 1988·29 cites·7 claims
- 1178US7387863B2Crystalline polyester for tonerKAO CORP·Filed 2005·Granted Jun 17, 2008·5 cites·3 claims
- 1278US6106986AColor tonerKAO CORP·Filed 1999·Granted Aug 22, 2000·32 cites·12 claims
- 1377US7820354B2Method for producing tonerKAO CORP·Filed 2005·Granted Oct 26, 2010·5 cites·15 claims
- 1477US6998212B2Crystalline polyesterKAO CORP·Filed 2003·Granted Feb 14, 2006·15 cites·16 claims
- 1575US10662110B2Asphalt composition for paving roadsKAO CORP·Filed 2017·Granted May 26, 2020·3 cites·7 claims
- 1675US6183928B1Toner for full color developmentKAO CORP·Filed 2000·Granted Feb 6, 2001·15 cites·10 claims
- 1775US2025163273A1Method for producing an asphalt emulsion composition containing a functionalized polyester resinKAO CORP·Filed 2024·Application pending·0 cites
- 1874US5343833AValve gear device for internal combustion enginesAISIN SEIKI·Filed 1993·Granted Sep 6, 1994·28 cites·2 claims
- 1974US2025163272A1Method for producing an aqueous emulsion of polyesterKAO CORP·Filed 2024·Application pending·0 cites
- 2072US12453472B2Method and apparatus for a burst operation pressure sensorPACESETTER INC·Filed 2021·Granted Oct 28, 2025·0 cites·21 claims
- 2172US10934434B2Asphalt composition for road pavementKAO CORP·Filed 2017·Granted Mar 2, 2021·1 cites·9 claims
- 2272US8288499B2Polyester for tonerSHIRAI EIJI·Filed 2007·Granted Oct 16, 2012·4 cites·9 claims
- 2368US8318634B2Thermal transfer image-receiving sheetsBAN YOSHIAKI·Filed 2009·Granted Nov 27, 2012·2 cites·17 claims
- 2468US8071268B2Electrophotographic tonerSHIRAI EIJI·Filed 2006·Granted Dec 6, 2011·3 cites·18 claims
- 2566US7208563B2Crystalline polyesterKAO CORP·Filed 2004·Granted Apr 24, 2007·9 cites·16 claims
- 2665US11299631B2Asphalt composition for road pavingKAO CORP·Filed 2017·Granted Apr 12, 2022·0 cites·20 claims
- 2763US7041422B2Resin binder for tonerKAO CORP·Filed 2003·Granted May 9, 2006·8 cites·16 claims
- 2861US6723822B2Crystalline polyesterKAO CORP·Filed 2002·Granted Apr 20, 2004·7 cites·5 claims
- 2960US7205357B2Polyester resin composition for tonerKAO CORP·Filed 2003·Granted Apr 17, 2007·3 cites·5 claims
- 3058US7385002B2Process for preparing resin binder for tonerKAO CORP·Filed 2005·Granted Jun 10, 2008·1 cites·14 claims
- 3158US2007093597A1Polyester resin composition for tonerKAO CORP·Filed 2006·Application pending·0 cites
- 3257US7351510B2Toner for electrophotographyKAO CORP·Filed 2004·Granted Apr 1, 2008·6 cites·7 claims
- 3357US6936393B2Catalyst for preparing polyester for tonerKAO CORP·Filed 2002·Granted Aug 30, 2005·2 cites·14 claims
- 3456US7842448B2Method of forming fixed imagesKAO CORP·Filed 2006·Granted Nov 30, 2010·1 cites·17 claims
- 3555US8652746B2Manufacturing method for polyester particle dispersion liquidMURATA SHOICHI·Filed 2009·Granted Feb 18, 2014·0 cites·19 claims
- 3655US2025311979A1Implantable medical device detection of non-biological disturbancePACESETTER INC·Filed 2025·Application pending·0 cites
- 3754US9291926B2Method for producing toner for electrostatic image developmentKAO CORP·Filed 2014·Granted Mar 22, 2016·0 cites·20 claims
- 3852US7718754B2Promoter for polycondensation reactionKAO CORP·Filed 2008·Granted May 18, 2010·0 cites·18 claims
- 3948US5488934AValve gear deviceAISIN SEIKI·Filed 1994·Granted Feb 6, 1996·13 cites·4 claims
- 4047US8802342B2Crystalline resins for tonersSHIRAI EIJI·Filed 2009·Granted Aug 12, 2014·0 cites·13 claims
- 4146US4925436ATensionerAISIN SEIKI·Filed 1988·Granted May 15, 1990·9 cites·7 claims
- 4244US8460847B2Toners for electrophotographySHIRAI EIJI·Filed 2009·Granted Jun 11, 2013·0 cites·6 claims
- 4343US9017912B2Method for producing tonerEIDA AKIHIRO·Filed 2010·Granted Apr 28, 2015·0 cites·20 claims
- 4442US11466156B2Asphalt compositionKAO CORP·Filed 2017·Granted Oct 11, 2022·0 cites·8 claims
- 4542US10782624B2Binder resin composition for electrostatic image developing tonersKAO CORP·Filed 2017·Granted Sep 22, 2020·0 cites·10 claims
- 4642US10394149B2Binder resin composition for electrostatic image developing tonersKAO CORP·Filed 2016·Granted Aug 27, 2019·0 cites·8 claims
- 4742US8389189B2Resin binders for tonersSHIRAI EIJI·Filed 2011·Granted Mar 5, 2013·0 cites·6 claims
- 4841US6984601B2Preparing condensation polymerization resin with catalyst for tonerKAO CORP·Filed 2002·Granted Jan 10, 2006·1 cites·36 claims
- 4940US8632936B2Process for production of electrophotographic tonerMURATA SHOICHI·Filed 2010·Granted Jan 21, 2014·0 cites·9 claims
- 5040US2013164673A1Method of manufacturing electrophotographic tonerKAO CORP·Filed 2012·Application pending·0 cites
Showing the top 50 of 56 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →