Inventor · disambiguated record
Okuyama Ryoichi
Also filed as: RYOICHI OKUYAMA
2 granted patents·3 pending applications·0 citations·filing 2003–2004
22Inventor score
Top patents by PatentIndex Score
5 records- 0131US2007020497A1Direct fuel cell systemGS YUASA CORP·Filed 2004·Application pending·0 cites
- 0229US2005233186A1Liquid-fuel fuel cell, operation monitoring method for monitoring operation thereof, and operation monitoring deviceRYOICHI OKUYAMA·Filed 2003·Application pending·0 cites
- 0328US7740963B2Liquid fuel type fuel cell system and its operating methodGS YUASA CORP·Filed 2003·Granted Jun 22, 2010·0 cites·4 claims
- 0425US7618729B2Liquid fuel direct supply fuel cell system and its operation controlling method and controllerGS YUASA CORP·Filed 2003·Granted Nov 17, 2009·0 cites·10 claims
- 0524US2006166045A1Fuel cell system and method for detecting running out of fuel in fuel cellGS YUASA CORP·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →