Inventor · disambiguated record
Masafumi Koizumi
Also filed as: KOIZUMI MASAFUMI
6 granted patents·2 pending applications·8 citations·filing 2010–2017
72Inventor score
Top patents by PatentIndex Score
8 records- 0180US8993197B2Bipolar plate for fuel cell and method for producing the sameISEKI TAKASHI·Filed 2010·Granted Mar 31, 2015·4 cites·9 claims
- 0270US10392703B2Plasma CVD apparatusTOYOTA MOTOR CO LTD·Filed 2015·Granted Aug 27, 2019·2 cites·1 claims
- 0370US10283785B2Amorphous carbon film, process for forming amorphous carbon film, electrically conductive member and fuel cell bipolar plate having amorphous carbon filmTOYOTA CHUO KENKYUSHO KK·Filed 2013·Granted May 7, 2019·1 cites·15 claims
- 0469US10199661B2Fuel cell separator and manufacturing method of fuel cell separatorTOYOTA MOTOR CO LTD·Filed 2016·Granted Feb 5, 2019·1 cites·4 claims
- 0549US2016233523A1Fuel cell separator, fuel cell, and manufacturing method of fuel cell separatorTOYOTA MOTOR CO LTD·Filed 2014·Application pending·0 cites
- 0645US10181603B2Manufacturing method of separator for fuel cellTOYOTA MOTOR CO LTD·Filed 2015·Granted Jan 15, 2019·0 cites·8 claims
- 0743US8652587B2Method and apparatus for forming filmNAKANISHI KAZUYUKI·Filed 2011·Granted Feb 18, 2014·0 cites·7 claims
- 0827US2017309455A1Plasma apparatusTOYOTA MOTOR CO LTD·Filed 2017·Application pending·0 cites
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