Inventor · disambiguated record
Genkichi Umeha
Also filed as: UMEHA GENKICHI
11 granted patents·219 citations·filing 1983–1987
92Inventor score
Top patents by PatentIndex Score
11 records- 0191US4644912ACam shaft and method of manufactureNIPPON PISTON RING CO LTD·Filed 1985·Granted Feb 24, 1987·51 cites·12 claims
- 0280US4615310ACamshaft with lubricating oil supplying functionNIPPON PISTON RING CO LTD·Filed 1984·Granted Oct 7, 1986·26 cites·8 claims
- 0376US4595556AMethod for manufacturing camshaftNIPPON PISTON RING CO LTD·Filed 1985·Granted Jun 17, 1986·32 cites·4 claims
- 0470US4612695AMethod of manufacturing a hollow cam shaftNIPPON PISTON RING CO LTD·Filed 1985·Granted Sep 23, 1986·22 cites·14 claims
- 0568US4665766AShaft memberNIPPON PISTON RING CO LTD·Filed 1984·Granted May 19, 1987·21 cites·4 claims
- 0661US4863513AIron-base anti-wear sintered alloy memberUMEHA GENKICHI·Filed 1987·Granted Sep 5, 1989·14 cites·3 claims
- 0756US4732310AComposite camshaft and method of making the sameNIPPON PISTON RING CO LTD·Filed 1984·Granted Mar 22, 1988·15 cites·6 claims
- 0856US4513977ASteel floating seal with remelted deposit-alloyed wear surfacesNIPPON PISTON RING CO LTD·Filed 1983·Granted Apr 30, 1985·11 cites·4 claims
- 0956US4473232AOil scraper ring with controlled gap arrangementNIPPON PISTON RING CO LTD·Filed 1983·Granted Sep 25, 1984·15 cites·4 claims
- 1046US4556532AMethod for manufacturing camshaftNIPPON PISTON RING CO LTD·Filed 1985·Granted Dec 3, 1985·10 cites·6 claims
- 1129US4649011AMethod of making a cam shaftNIPPON PISTON RING CO LTD·Filed 1985·Granted Mar 10, 1987·2 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →