Inventor · disambiguated record
Akifumi Oishi
Also filed as: OISHI AKIFUMI
26 granted patents·2 pending applications·206 citations·filing 1986–2010
96Inventor score
Top patents by PatentIndex Score
28 records- 0192US7798927B2Belt-type continuously variable transmission and straddle-type vehicleYAMAHA MOTOR CO LTD·Filed 2007·Granted Sep 21, 2010·20 cites·17 claims
- 0289US7857721B2Belt-type continuously variable transmission and straddle-type vehicleYAMAHA MOTOR CO LTD·Filed 2007·Granted Dec 28, 2010·20 cites·20 claims
- 0388US7401589B2EngineYAMAHA MOTOR CO LTD·Filed 2007·Granted Jul 22, 2008·14 cites·19 claims
- 0488US7316626B2EngineYAMAHA MOTOR CO LTD·Filed 2003·Granted Jan 8, 2008·25 cites·25 claims
- 0586US8202181B2EngineOISHI AKIFUMI·Filed 2007·Granted Jun 19, 2012·10 cites·17 claims
- 0686US8075432B2Engine unit and straddle type vehicleOISHI AKIFUMI·Filed 2007·Granted Dec 13, 2011·10 cites·18 claims
- 0784US7892121B2Straddle-type vehicleYAMAHA MOTOR CO LTD·Filed 2006·Granted Feb 22, 2011·12 cites·12 claims
- 0882US7647995B2Riding type vehicleYAMAHA MOTOR CO LTD·Filed 2006·Granted Jan 19, 2010·10 cites·16 claims
- 0981USRE42841EEngine with transmissionYAMAHA MOTOR CO LTD·Filed 2010·Granted Oct 18, 2011·4 cites·24 claims
- 1078US7819232B2Clutch and vehicle having the sameYAMAHA MOTOR CO LTD·Filed 2006·Granted Oct 26, 2010·6 cites·10 claims
- 1178US7487853B2Saddle-type vehicleYAMAHA MOTOR CO LTD·Filed 2006·Granted Feb 10, 2009·11 cites·17 claims
- 1276US8157038B2Saddle-ride type vehicleISHIDA YOUSUKE·Filed 2006·Granted Apr 17, 2012·11 cites·19 claims
- 1370US7766776B2V-shaped belt, belt-type transmission, and saddle type-vehicleYAMAHA MOTOR CO LTD·Filed 2005·Granted Aug 3, 2010·3 cites·13 claims
- 1470US7478696B2Motorcycle with lowered center of gravityYAMAHA MOTOR CO LTD·Filed 2005·Granted Jan 20, 2009·7 cites·11 claims
- 1570US7168543B2Clutch-lever manipulation assisting deviceYAMAHA MOTOR CO LTD·Filed 2005·Granted Jan 30, 2007·4 cites·19 claims
- 1667US7690466B2MotorcycleYAMAHA MOTOR CO LTD·Filed 2007·Granted Apr 6, 2010·4 cites·5 claims
- 1763US7540348B2Power unit for motorcycle and motorcycleYAMAHA MOTOR CO LTD·Filed 2005·Granted Jun 2, 2009·4 cites·19 claims
- 1861US8136648B2Clutch operation assisting device, power unit for vehicle and straddle type vehicle including the sameOISHI AKIFUMI·Filed 2008·Granted Mar 20, 2012·2 cites·12 claims
- 1961US7980348B2MotorcycleYAMAHA MOTOR CO LTD·Filed 2008·Granted Jul 19, 2011·2 cites·9 claims
- 2060US8763486B2Stepwise automatic transmission for saddle riding type vehicle, power unit equipped with the same, and saddle riding type vehicle equipped with the sameOISHI AKIFUMI·Filed 2009·Granted Jul 1, 2014·3 cites·12 claims
- 2157US7549496B2Engine mounting arrangement for two wheeled vehicleYAMAHA MOTOR CO LTD·Filed 2005·Granted Jun 23, 2009·2 cites·22 claims
- 2257US4754859AOne-way clutch and application thereforYAMAHA MOTOR CO LTD·Filed 1986·Granted Jul 5, 1988·19 cites·25 claims
- 2352US8720632B2Two-wheeled motor vehicleOISHI AKIFUMI·Filed 2009·Granted May 13, 2014·1 cites·7 claims
- 2449US7178655B2Clutch-lever manipulation assisting deviceYAMAHA MOTOR CO LTD·Filed 2004·Granted Feb 20, 2007·2 cites·20 claims
- 2549US2010267505A1V-shaped belt, belt-type transmission, and saddle-type vehicleYAMAHA MOTOR CO LTD·Filed 2010·Application pending·0 cites
- 2647US8960398B2Clutch operation assisting device and power unit for straddle-type vehicleOISHI AKIFUMI·Filed 2007·Granted Feb 24, 2015·0 cites·19 claims
- 2747US7721700B2Engine unit and straddle-type vehicle provided with the sameYAMAHA MOTOR CO LTD·Filed 2008·Granted May 25, 2010·0 cites·9 claims
- 2839US2005107194A1EngineFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →