Assignee
UMAYAHARA KENJI
JP·18 granted patents·2 pending applications·42 citations·filing 2003–2012
Top patents by PatentIndex Score
20 records- 0182US9034495B2Fuel cell systemUMAYAHARA KENJI·Filed 2008·Granted May 19, 2015·6 cites·4 claims
- 0281US8642224B2Fuel cell system with a learning capability to readjust the driving characteristic of a gas supply device and vehicleUMAYAHARA KENJI·Filed 2006·Granted Feb 4, 2014·4 cites·12 claims
- 0381US8084151B2Fuel cell system and method thereforUMAYAHARA KENJI·Filed 2008·Granted Dec 27, 2011·4 cites·14 claims
- 0480US8277990B2Fuel cell systemUMAYAHARA KENJI·Filed 2006·Granted Oct 2, 2012·5 cites·11 claims
- 0579US8853989B2Fuel cell system and motor driving methodUMAYAHARA KENJI·Filed 2009·Granted Oct 7, 2014·4 cites·14 claims
- 0672US8999591B2Fuel cell system for preventing excessive power generationUMAYAHARA KENJI·Filed 2008·Granted Apr 7, 2015·2 cites·2 claims
- 0770US8658324B2Fuel cell systemUMAYAHARA KENJI·Filed 2009·Granted Feb 25, 2014·1 cites·2 claims
- 0869US8802310B2Fuel cell systemUMAYAHARA KENJI·Filed 2012·Granted Aug 12, 2014·1 cites·1 claims
- 0968US8722265B2Fuel cell systemUMAYAHARA KENJI·Filed 2008·Granted May 13, 2014·1 cites·5 claims
- 1063US8130108B2Gas level display controller, gas level display device, and gas level display control methodUMAYAHARA KENJI·Filed 2008·Granted Mar 6, 2012·1 cites·5 claims
- 1162US8273490B2Fuel cell systemUMAYAHARA KENJI·Filed 2008·Granted Sep 25, 2012·7 cites·7 claims
- 1262US8153314B2Alert method relating to remaining fuel amount of fuel cell system and fuel cell system using the sameUMAYAHARA KENJI·Filed 2003·Granted Apr 10, 2012·5 cites·13 claims
- 1358US2012146421A1Fuel cell systemUMAYAHARA KENJI·Filed 2009·Application pending·0 cites
- 1458US2010092819A1Fuel cell systemUMAYAHARA KENJI·Filed 2008·Application pending·0 cites
- 1555US8980487B2Fuel cell system and activating completion degree displaying method of the sameUMAYAHARA KENJI·Filed 2008·Granted Mar 17, 2015·0 cites·6 claims
- 1654US9905869B2Fuel cell system and method of controlling the sameUMAYAHARA KENJI·Filed 2008·Granted Feb 27, 2018·0 cites·6 claims
- 1754US8722266B2Fuel cell systemUMAYAHARA KENJI·Filed 2008·Granted May 13, 2014·0 cites·4 claims
- 1853US8609292B2Fuel cell systemUMAYAHARA KENJI·Filed 2007·Granted Dec 17, 2013·0 cites·8 claims
- 1951US8557464B2Fuel supply system having regulating device for supplying fuel gas to an anodeUMAYAHARA KENJI·Filed 2007·Granted Oct 15, 2013·0 cites·4 claims
- 2050US8626373B2Fuel cell system and control method of sameUMAYAHARA KENJI·Filed 2009·Granted Jan 7, 2014·1 cites·5 claims
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