Inventor · disambiguated record
Keiji Hashimoto
Also filed as: HASHIMOTO KEIJI
38 granted patents·8 pending applications·377 citations·filing 1993–2019
97Inventor score
Files withHASHIMOTO KEIJI8TOYOTA AUTO BODY CO LTD7OTIS ELEVATOR CO5DAINIPPON PRINTING CO LTD4TOYOTA MOTOR CO LTD4
Top patents by PatentIndex Score
46 records- 0191US5538816AHalftone phase shift photomask, halftone phase shift photomask blank, and methods of producing the sameDAINIPPON PRINTING CO LTD·Filed 1994·Granted Jul 23, 1996·72 cites·42 claims
- 0290US7605085B2Method of manufacturing interconnecting structure with viasRENESAS TECH CORP·Filed 2006·Granted Oct 20, 2009·20 cites·6 claims
- 0389USD467292SGolf club headMIZUNO KK·Filed 2001·Granted Dec 17, 2002·40 cites·1 claims
- 0486US10547069B2Fuel cell having end cell with bypass passageTOYOTA AUTO BODY CO LTD·Filed 2017·Granted Jan 28, 2020·2 cites·4 claims
- 0586US9065090B2Fuel batteryKAWAJIRI KOUSUKE·Filed 2010·Granted Jun 23, 2015·6 cites·4 claims
- 0684US10259683B2Method for controlling an elevator systemOTIS ELEVATOR CO·Filed 2017·Granted Apr 16, 2019·3 cites·9 claims
- 0783US5648695ABrush apparatus for electric rotating machineASMO CO LTD·Filed 1995·Granted Jul 15, 1997·48 cites·1 claims
- 0882US9994429B1Handrail with a built-in RBIOTIS ELEVATOR CO·Filed 2017·Granted Jun 12, 2018·6 cites·13 claims
- 0981US8206865B2Separator for fuel cellHASHIMOTO KEIJI·Filed 2006·Granted Jun 26, 2012·5 cites·11 claims
- 1080US10252882B2Elevator motion alert systemOTIS ELEVATOR CO·Filed 2016·Granted Apr 9, 2019·2 cites·2 claims
- 1179US10840522B2Fuel cellTOYOTA AUTO BODY CO LTD·Filed 2017·Granted Nov 17, 2020·2 cites·5 claims
- 1278US10790532B2Fuel cell stack and dummy cellTOYOTA MOTOR CO LTD·Filed 2017·Granted Sep 29, 2020·1 cites·6 claims
- 1376US8034510B2Gas diffusion layer in a fuel cellTOYOTA MOTOR CO LTD·Filed 2007·Granted Oct 11, 2011·4 cites·11 claims
- 1476US6737104B2Manufacturing method of anti-corrosive multi-layered structure materialARACO KK·Filed 2002·Granted May 18, 2004·17 cites·5 claims
- 1572US5614335ABlanks for halftone phase shift photomasks, halftone phase shift photomasks, and methods for fabricating themDAINIPPON PRINTING CO LTD·Filed 1994·Granted Mar 25, 1997·20 cites·16 claims
- 1671US9160026B2Gas flow passage forming member, method of manufacturing the gas flow passage forming member, and device for forming the gas flow passage forming memberFUTAMI SATOSHI·Filed 2009·Granted Oct 13, 2015·4 cites·7 claims
- 1770US9160020B2Fuel cellKAWAJIRI KOUSUKE·Filed 2010·Granted Oct 13, 2015·2 cites·29 claims
- 1869US9190680B2Fuel batteryHASHIMOTO KEIJI·Filed 2012·Granted Nov 17, 2015·1 cites·12 claims
- 1962US6973639B2Automatic program generation technology using data structure resolution unitFUJITSU LTD·Filed 2001·Granted Dec 6, 2005·14 cites·19 claims
- 2057US9561532B2Roll forming deviceTAKAMURA TOMOYUKI·Filed 2014·Granted Feb 7, 2017·1 cites·3 claims
- 2155US7341799B2Separator from a fuel cell having first and second portions of different materialsTOYOTA AUTO BODY CO LTD·Filed 2003·Granted Mar 11, 2008·2 cites·15 claims
- 2255US5721075ABlanks for halftone phase shift photomasks, halftone phase shift photomasks, and methods for fabricating themDAINIPPON PRINTING CO LTD·Filed 1997·Granted Feb 24, 1998·13 cites·10 claims
- 2354US9917310B2Gas flow channel forming body for fuel cell, and fuel cellHASHIMOTO KEIJI·Filed 2014·Granted Mar 13, 2018·0 cites·8 claims
- 2453US9960433B2Gas channel forming member for fuel cells, and fuel cellHASHIMOTO KEIJI·Filed 2014·Granted May 1, 2018·0 cites·5 claims
- 2552US10263272B2Gas flow path forming bodies of fuel cell, and fuel cellHASHIMOTO KEIJI·Filed 2014·Granted Apr 16, 2019·0 cites·6 claims
- 2652US8835064B2Fuel batteryHASHIMOTO KEIJI·Filed 2009·Granted Sep 16, 2014·0 cites·3 claims
- 2751US2009089989A1Method of forming gas diffusion layer for fuel cellTOYOTA AUTO BODY CO LTD·Filed 2007·Application pending·0 cites
- 2850US10727511B2Fuel cellHASHIMOTO KEIJI·Filed 2013·Granted Jul 28, 2020·0 cites·4 claims
- 2950US8445160B2Fuel cell with gas passage forming member and water ingression preventing meansSUZUKI YUKIHIRO·Filed 2009·Granted May 21, 2013·0 cites·5 claims
- 3047US9825314B2Fuel cell and manufacturing method of expanded metalMAEDA ATSUSHI·Filed 2012·Granted Nov 21, 2017·0 cites·11 claims
- 3146US5745878ABusiness requirement handling apparatusFUJITSU LTD·Filed 1995·Granted Apr 28, 1998·72 cites·7 claims
- 3246US2019031470A1Brake torque detection for elevator brakeOTIS ELEVATOR CO·Filed 2018·Application pending·0 cites
- 3346US2009121313A1Semiconductor device with at least one air gap provided in chip outer areaRENESAS TECH CORP·Filed 2008·Application pending·0 cites
- 3445US5419988APhotomask blank and phase shift photomaskDAINIPPON PRINTING CO LTD·Filed 1993·Granted May 30, 1995·15 cites·10 claims
- 3545US2020354189A1Elevator communication systemsOTIS ELEVATOR CO·Filed 2019·Application pending·0 cites
- 3644US9780389B2Fuel cell separator and production method for fuel cell separatorMOROZUMI EIICHIRO·Filed 2014·Granted Oct 3, 2017·0 cites·4 claims
- 3743US10511036B2Fuel cell module with arranged ridge segmentsTOYOTA MOTOR CO LTD·Filed 2017·Granted Dec 17, 2019·0 cites·5 claims
- 3841US10727523B2Fuel cell stackTOYOTA MOTOR CO LTD·Filed 2018·Granted Jul 28, 2020·0 cites·7 claims
- 3940US2005035457A1Interconnecting structure with dummy viasRENESAS TECH CORP·Filed 2004·Application pending·0 cites
- 4040US2009075140A1Electrode structure of fuel cellTOYOTA AUTO BODY CO LTD·Filed 2006·Application pending·0 cites
- 4139US2006163730A1Electronic device and its manufacturing methodMATSUMOTO SUSUMU·Filed 2004·Application pending·0 cites
- 4238US10347920B2Gas channel forming plate for fuel cell and fuel cell stackSHINOZAKI YOSHINORI·Filed 2017·Granted Jul 9, 2019·0 cites·4 claims
- 4338US2009263697A1Fuel cellTOYOTA AUTO BODY CO LTD·Filed 2006·Application pending·0 cites
- 4437US10651495B2Fuel cell stackHASHIMOTO KEIJI·Filed 2015·Granted May 12, 2020·0 cites·5 claims
- 4535US9724855B2Roll molding deviceNISHIMURA CO LTD·Filed 2013·Granted Aug 8, 2017·0 cites·4 claims
- 4628US6855446B1Fuel cell, separator for fuel cell, and manufacturing method of separatorTOYOTA AUTO BODY CO LTD·Filed 1999·Granted Feb 15, 2005·5 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →