Inventor · disambiguated record
Yoshiharu Isaka
Also filed as: ISAKA YOSHIHARU
19 granted patents·511 citations·filing 1974–1995
96Inventor score
Files withYAMAHA MOTOR CO LTD16OGURI KIYOHIKO1YAMAHA HATSUDOKI KABUSHIKI KAS1YAMAHA KOGYO HATSUDOKI KABUSHI1
Top patents by PatentIndex Score
19 records- 0186US5172786AV belt type automatic transmission systemYAMAHA MOTOR CO LTD·Filed 1991·Granted Dec 22, 1992·85 cites·20 claims
- 0286US4339964AInternal combustion engine with combined transmission case and crankshaft case, and intermediate shaftYAMAHA MOTOR CO LTD·Filed 1979·Granted Jul 20, 1982·33 cites·3 claims
- 0384US5311848AInduction system for engineYAMAHA MOTOR CO LTD·Filed 1992·Granted May 17, 1994·39 cites·55 claims
- 0484US4766859ALubricating system for vertical shaft engineYAMAHA MOTOR CO LTD·Filed 1987·Granted Aug 30, 1988·44 cites·20 claims
- 0583US3934562ATwo-cycle engineYAMAHA MOTOR CO LTD·Filed 1974·Granted Jan 27, 1976·35 cites·18 claims
- 0679US4790273AVertical engine for walk behind lawn mowerOGURI KIYOHIKO·Filed 1987·Granted Dec 13, 1988·32 cites·19 claims
- 0778US5255649AIntake air control system for the engineYAMAHA MOTOR CO LTD·Filed 1992·Granted Oct 26, 1993·33 cites·54 claims
- 0875US4727834AVertical engine for walk behind lawn mowerYAMAHA MOTOR CO LTD·Filed 1987·Granted Mar 1, 1988·27 cites·29 claims
- 0974US5359972ATumble control valve for intake portYAMAHA HATSUDOKI KABUSHIKI KAS·Filed 1992·Granted Nov 1, 1994·31 cites·62 claims
- 1074US5233952APump drive for engineYAMAHA MOTOR CO LTD·Filed 1991·Granted Aug 10, 1993·28 cites·23 claims
- 1162US5487365AInduction system for engineYAMAHA MOTOR CO LTD·Filed 1994·Granted Jan 30, 1996·19 cites·33 claims
- 1260US5000126AVertical engine for walk-behind lawn mowerYAMAHA KOGYO HATSUDOKI KABUSHI·Filed 1987·Granted Mar 19, 1991·27 cites·11 claims
- 1357US5564383ATumble valve arrangement for engineYAMAHA MOTOR CO LTD·Filed 1994·Granted Oct 15, 1996·16 cites·41 claims
- 1457US5070686AVertical engine for walk behind lawn mowerYAMAHA MOTOR CO LTD·Filed 1989·Granted Dec 10, 1991·15 cites·10 claims
- 1554US4327811AMotorcycle exhaust systemsYAMAHA MOTOR CO LTD·Filed 1980·Granted May 4, 1982·20 cites·7 claims
- 1651US4484650AMotorcycle mounted with V shaped engineYAMAHA MOTOR CO LTD·Filed 1982·Granted Nov 27, 1984·11 cites·16 claims
- 1742US5549088AInduction system for engineYAMAHA MOTOR CO LTD·Filed 1994·Granted Aug 27, 1996·9 cites·7 claims
- 1838US5794587ATumble valve for multi-valve engineYAMAHA MOTOR CO LTD·Filed 1995·Granted Aug 18, 1998·6 cites·20 claims
- 1929US4489802AExhaust system for motorcyclesYAMAHA MOTOR CO LTD·Filed 1982·Granted Dec 25, 1984·1 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →