Inventor · disambiguated record
Kei Matsumoto
Also filed as: MATSUMOTO KEI
23 granted patents·9 pending applications·98 citations·filing 1996–2025
93Inventor score
Files withHONDA MOTOR CO LTD7TOYOTA MOTOR CO LTD6KOMATSU DENSHI KINZOKU KK4JUJO PAPER CO LTD3HITACHI METALS LTD2
Top patents by PatentIndex Score
32 records- 0183US7825054B2Semiconductor porcelain compositionHITACHI METALS LTD·Filed 2005·Granted Nov 2, 2010·6 cites·3 claims
- 0281US10627450B2Battery state detection deviceYAZAKI CORP·Filed 2017·Granted Apr 21, 2020·2 cites·12 claims
- 0381US7141992B2Method for measuring impurity metal concentrationKOMATSU DENSHI KINZOKU KK·Filed 2005·Granted Nov 28, 2006·14 cites·5 claims
- 0479US8421435B2Power supply voltage controlling circuit for use in subthreshold digital CMOS circuit including minute current generator and controlled output voltage generator circuitHIROSE TETSUYA·Filed 2010·Granted Apr 16, 2013·6 cites·27 claims
- 0569US11583906B2Manufacturing method for fuel cell separator, and manufacturing apparatus for fuel cell separatorHONDA MOTOR CO LTD·Filed 2021·Granted Feb 21, 2023·0 cites·5 claims
- 0669US7893001B2Semiconductor porcelain compositionHITACHI METALS LTD·Filed 2010·Granted Feb 22, 2011·1 cites·3 claims
- 0768US2025309286A1Fuel cell stack and welding methodHONDA MOTOR CO LTD·Filed 2025·Application pending·0 cites
- 0867US8173523B2Method of removing heavy metal in semiconductor substrateMITSUGI NORITOMO·Filed 2010·Granted May 8, 2012·3 cites·7 claims
- 0965US5866468AMethod for fabricating an SOI substrateKOMATSU ELECTRONIC METAL CO LT·Filed 1996·Granted Feb 2, 1999·34 cites·6 claims
- 1064US12116085B1Component for human-powered vehicleSHIMANO KK·Filed 2023·Granted Oct 15, 2024·0 cites·20 claims
- 1163US11444358B2Manufacturing method for fuel cell separators and manufacturing apparatus for fuel cell separatorsHONDA MOTOR CO LTD·Filed 2021·Granted Sep 13, 2022·0 cites·8 claims
- 1262US11642714B2Progressive pressing method, progressive pressing device, manufacturing method for fuel cell separators and manufacturing apparatus for fuel cell separatorsHONDA MOTOR CO LTD·Filed 2021·Granted May 9, 2023·0 cites·11 claims
- 1362US2023303805A1Molding resin material and method for manufacturing the sameJUJO PAPER CO LTD·Filed 2021·Application pending·0 cites
- 1461US2023136603A1Molding resin material and method for manufacturing the sameJUJO PAPER CO LTD·Filed 2021·Application pending·0 cites
- 1560US9842779B2Method of evaluating metal contamination in semiconductor wafer and method of manufacturing semiconductor waferSUMCO CORP·Filed 2014·Granted Dec 12, 2017·1 cites·8 claims
- 1658US11975778B2Information processing apparatus, non-transitory storage medium, and information processing methodTOYOTA MOTOR CO LTD·Filed 2021·Granted May 7, 2024·0 cites·20 claims
- 1757US2021305592A1Joint structure and fuel cell separatorHONDA MOTOR CO LTD·Filed 2021·Application pending·0 cites
- 1852US11515560B2Progressive pressing device and manufacturing apparatus for fuel cell separatorsHONDA MOTOR CO LTD·Filed 2021·Granted Nov 29, 2022·0 cites·18 claims
- 1951US11900331B2Information processing apparatus, information processing method, and vehicleTOYOTA MOTOR CO LTD·Filed 2020·Granted Feb 13, 2024·0 cites·15 claims
- 2051US2022388216A1Molding resin material and method for manufacturing the sameJUJO PAPER CO LTD·Filed 2020·Application pending·0 cites
- 2151US2021247765A1Information processing apparatus, information processing method, and vehicleTOYOTA MOTOR CO LTD·Filed 2021·Application pending·0 cites
- 2250US11580583B2Information processing apparatus, information processing system and information processing methodTOYOTA MOTOR CO LTD·Filed 2020·Granted Feb 14, 2023·0 cites·17 claims
- 2349US10873091B2Method for producing porous metal body and method for producing electrode catalystHONDA MOTOR CO LTD·Filed 2017·Granted Dec 22, 2020·0 cites·7 claims
- 2449US5742176AMethod of measuring a Fe-B concentration of a silicon waferKOMATSU DENSHI KINZOKU KK·Filed 1996·Granted Apr 21, 1998·16 cites·4 claims
- 2549US2021247766A1Information processing apparatus, information processing method, and vehicleTOYOTA MOTOR CO LTD·Filed 2021·Application pending·0 cites
- 2649US2023389240A1Electric power conversion apparatusTOSHIBA MITSUBISHI ELEC IND·Filed 2021·Application pending·0 cites
- 2747US2021232145A1Information processing apparatus, non-transitory storage medium, and information processing methodTOYOTA MOTOR CO LTD·Filed 2021·Application pending·0 cites
- 2844US10666066B2Differential voltage measurement deviceYAZAKI CORP·Filed 2016·Granted May 26, 2020·0 cites·8 claims
- 2938US5770511ASilicon-on-insulator substrate and a method for fabricating the sameKOMATSU DENSHI KINZOKU KK·Filed 1996·Granted Jun 23, 1998·7 cites·4 claims
- 3033US5849603AMethod of processing a surface of a semiconductor substrateKOMATSU DENSHI KINZOKU KK·Filed 1996·Granted Dec 15, 1998·3 cites·2 claims
- 3132US9372223B2Method of evaluating metal contamination in semiconductor sample and method of manufacturing semiconductor substrateMATSUMOTO KEI·Filed 2012·Granted Jun 21, 2016·0 cites·18 claims
- 3229US5742175AMethod of evaluating a density of oxygen-precipitation defects in a silicon waferKOMATSU ELECTRONIC METALS INC·Filed 1996·Granted Apr 21, 1998·5 cites·3 claims
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