Inventor · disambiguated record
Kohichi Hasegawa
Also filed as: HASEGAWA KOHICHI
6 granted patents·175 citations·filing 1975–1990
85Inventor score
Top patents by PatentIndex Score
6 records- 0196US4739614ADouble air-fuel ratio sensor system in internal combustion engineTOYOTA MOTOR CO LTD·Filed 1986·Granted Apr 26, 1988·70 cites·108 claims
- 0284US5000299AShock absorber using electro-viscous fluidTOKAI RUBBER IND LTD·Filed 1990·Granted Mar 19, 1991·48 cites·12 claims
- 0384US3982395AExhaust system for multi-cylinder internal combustionTOYOTA MOTOR CO LTD·Filed 1975·Granted Sep 28, 1976·23 cites·5 claims
- 0467US4665740ACombustion process sensorNIPPON DENSO CO·Filed 1985·Granted May 19, 1987·27 cites·4 claims
- 0552USD312901SElectric vacuum cleanerHITACHI LTD·Filed 1989·Granted Dec 11, 1990·6 cites·1 claims
- 0634USD302878SElectric vacuum cleanerHITACHI LTD·Filed 1987·Granted Aug 15, 1989·1 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →