Inventor · disambiguated record
Katsumi Ikuma
Also filed as: IKUMA KATSUMI
3 granted patents·391 citations·filing 1981–1994
79Inventor score
Files withYAMAHA MOTOR CO LTD3
Top patents by PatentIndex Score
3 records- 0195US5664636AVehicle with electric motorYAMAHA MOTOR CO LTD·Filed 1994·Granted Sep 9, 1997·218 cites·47 claims
- 0293US4364448ASpeed control for wheeled vehiclesYAMAHA MOTOR CO LTD·Filed 1981·Granted Dec 21, 1982·98 cites·36 claims
- 0389US5505277AControl for electric assist vehicleYAMAHA MOTOR CO LTD·Filed 1994·Granted Apr 9, 1996·75 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →