Inventor · disambiguated record
Hiroyoshi Yasui
Also filed as: YASUI HIROYOSHI
6 granted patents·223 citations·filing 1982–1993
87Inventor score
Files withKOYO SEIKO CO6
Top patents by PatentIndex Score
6 records- 0190US4523862ATapered roller bearingKOYO SEIKO CO·Filed 1984·Granted Jun 18, 1985·52 cites·14 claims
- 0286US5002289ABi-directional oil seal with leakage recovering rib formationsKOYO SEIKO CO·Filed 1989·Granted Mar 26, 1991·53 cites·6 claims
- 0380US4668411ADiurea type grease compositionKOYO SEIKO CO·Filed 1985·Granted May 26, 1987·34 cites·10 claims
- 0480US4655617ASealed rolling bearing with a flow reducing grease passageKOYO SEIKO CO·Filed 1985·Granted Apr 7, 1987·36 cites·11 claims
- 0573US5403098AHydrodynamic bearing deviceKOYO SEIKO CO·Filed 1993·Granted Apr 4, 1995·29 cites·2 claims
- 0669US4464275ARust preventive oil for a low frictional torque tapered roller bearingKOYO SEIKO CO·Filed 1982·Granted Aug 7, 1984·19 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →