Assignee
YAMAMOTO RISA
JP·2 granted patents·1 pending application·4 citations·filing 2009–2011
Top patents by PatentIndex Score
3 records- 0158US8322131B2Internal combustion engine exhaust gas cleaning apparatus and exhaust gas cleaning methodYAMAMOTO RISA·Filed 2009·Granted Dec 4, 2012·4 cites·12 claims
- 0236US9028598B2Diesel engine exhaust purification systemYAMAMOTO RISA·Filed 2011·Granted May 12, 2015·0 cites·11 claims
- 0331US2012186235A1Exhaust gas purification device for internal combustion engineYAMAMOTO RISA·Filed 2010·Application pending·0 cites
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