Inventor · disambiguated record
Eiji Nakai
Also filed as: NAKAI EIJI
24 granted patents·6 pending applications·309 citations·filing 1987–2021
95Inventor score
Top patents by PatentIndex Score
30 records- 0197US6945236B2EGR control apparatus for engineMAZDA MOTOR·Filed 2004·Granted Sep 20, 2005·68 cites·4 claims
- 0287US6962140B1Diesel engine control system and control methodMAZDA MOTOR·Filed 2003·Granted Nov 8, 2005·38 cites·12 claims
- 0384US4886022AEngine valve driving apparatusMAZDA MOTOR·Filed 1989·Granted Dec 12, 1989·43 cites·10 claims
- 0482US5590563AElectronically controlled transmissionMAZDA MOTOR·Filed 1994·Granted Jan 7, 1997·43 cites·11 claims
- 0580US4854273AOil pressure control apparatus for an internal combustion engineMAZDA MOTOR·Filed 1988·Granted Aug 8, 1989·29 cites·16 claims
- 0677US9464586B2Exhaust gas recirculation system of engineMAZDA MOTOR·Filed 2014·Granted Oct 11, 2016·4 cites·13 claims
- 0772US4956287AProcess for producing oleaginous compositionASAHI DENKA KOGYO KK·Filed 1987·Granted Sep 11, 1990·16 cites·11 claims
- 0866US4849132ASurfactant composition having improved functionsASAHI DENKA KOGYO KK·Filed 1987·Granted Jul 18, 1989·28 cites·11 claims
- 0961US8397503B2Turbocharged engine for vehicleNIWA YASUSHI·Filed 2010·Granted Mar 19, 2013·3 cites·8 claims
- 1059US11293395B2Control device for engineMAZDA MOTOR·Filed 2019·Granted Apr 5, 2022·0 cites·12 claims
- 1158US4765289AValve driving system for internal combustion engineMAZDA MOTOR·Filed 1987·Granted Aug 23, 1988·14 cites·9 claims
- 1258US2024388064A1Optical semiconductor element, optical module, and method for manufacturing optical semiconductor elementMITSUBISHI ELECTRIC CORP·Filed 2021·Application pending·0 cites
- 1355US11028797B2Engine control method and engine control deviceMAZDA MOTOR·Filed 2019·Granted Jun 8, 2021·0 cites·12 claims
- 1455US5089404AProcess for the transesterification of fat and oilJAPAN RES & DEV ASS·Filed 1988·Granted Feb 18, 1992·17 cites·16 claims
- 1553US8815483B2Magenta toner, toner set, magenta developer, toner cartridge, process cartridge, and image forming apparatusMATSUMOTO AKIRA·Filed 2011·Granted Aug 26, 2014·0 cites·14 claims
- 1649US11417524B2Manufacturing method of a group III-V compound semiconductor deviceMITSUBISHI ELECTRIC CORP·Filed 2018·Granted Aug 16, 2022·0 cites·9 claims
- 1748US11242812B2Engine control method and engine control deviceMAZDA MOTOR·Filed 2019·Granted Feb 8, 2022·0 cites·14 claims
- 1847US9464585B2Exhaust gas recirculation control system of engineMAZDA MOTOR·Filed 2014·Granted Oct 11, 2016·0 cites·6 claims
- 1947US9058001B2Image forming apparatusFUJI XEROX CO LTD·Filed 2013·Granted Jun 16, 2015·0 cites·4 claims
- 2046US10374388B2Optical semiconductor deviceMITSUBISHI ELECTRIC CORP·Filed 2017·Granted Aug 6, 2019·0 cites·14 claims
- 2145US9948064B2Method of manufacturing semiconductor device, and semiconductor deviceMITSUBISHI ELECTRIC CORP·Filed 2017·Granted Apr 17, 2018·0 cites·3 claims
- 2245US7505669B2Content reproduction apparatusSANYO ELECTRIC CO·Filed 2003·Granted Mar 17, 2009·0 cites·9 claims
- 2345US2004190171A1Content recording apparatusFiled 2004·Application pending·0 cites
- 2444US2005271359A1Content copying apparatusSANYO ELECTRIC CO·Filed 2005·Application pending·0 cites
- 2543US10910222B2Method for manufacturing semiconductor deviceMITSUBISHI ELECTRIC CORP·Filed 2017·Granted Feb 2, 2021·0 cites·7 claims
- 2643US2021313772A1Optical semiconductor device and method for manufacturing optical semiconductor deviceMITSUBISHI ELECTRIC CORP·Filed 2018·Application pending·0 cites
- 2741USRE34596EValve driving system for internal combustion engineMAZDA MOTOR·Filed 1990·Granted May 3, 1994·6 cites·11 claims
- 2836US2012000441A1Diesel engine for vehicleNAKAI EIJI·Filed 2011·Application pending·0 cites
- 2935US11099805B2Reproduced data output apparatus and computer program productDENSO CORP·Filed 2017·Granted Aug 24, 2021·0 cites·10 claims
- 3033US2007012031A1Fuel control for diesel engine having particulate filterMAZDA MOTOR·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →