Inventor · disambiguated record
Ken Umehara
Also filed as: UMEHARA KEN
6 granted patents·2 pending applications·294 citations·filing 1992–2010
86Inventor score
Top patents by PatentIndex Score
8 records- 0193US5293741AWarming-up system for warming up an engine for an automotive vehicleMAZDA MOTOR·Filed 1993·Granted Mar 15, 1994·100 cites·19 claims
- 0289US5233831AExhaust control system for internal combustion engineMAZDA MOTOR·Filed 1992·Granted Aug 10, 1993·69 cites·21 claims
- 0387US8007976B2Electrostatic image developing toner, toner kit and image forming apparatusRICOH CO LTD·Filed 2006·Granted Aug 30, 2011·10 cites·22 claims
- 0487US5950419AMethod of and system for purifying exhaust gas for enginesMAZDA MOTOR·Filed 1995·Granted Sep 14, 1999·98 cites·126 claims
- 0585US7718339B2Electrostatic image developing toner and image forming apparatus using the sameRICOH KK·Filed 2008·Granted May 18, 2010·8 cites·20 claims
- 0685US7648812B2Toner, developer, and image forming apparatusRICOH KK·Filed 2006·Granted Jan 19, 2010·9 cites·14 claims
- 0749US2011002719A1Image forming apparatus, and toner and developer used thereinSHU HYO·Filed 2010·Application pending·0 cites
- 0845US2007184377A1Image forming apparatus, and toner and developer used thereinSHU HYO·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →