Inventor · disambiguated record
Ryoichi Tomikawa
Also filed as: NAKANISHI KATUMI · SAKABE TOSHIAKI · TOMIKAWA RYOICHI
5 granted patents·61 citations·filing 1977–1983
80Inventor score
Top patents by PatentIndex Score
5 records- 0170US4146527AMethod for manufacturing a friction material of the resin mold typeAISIN SEIKI·Filed 1977·Granted Mar 27, 1979·16 cites·12 claims
- 0269US4262788AFriction member of non-asbestosYAMAMOTO YASUNOBU·Filed 1978·Granted Apr 21, 1981·19 cites·26 claims
- 0366US4420067AFriction member of resin mold typeAISIN SEIKI·Filed 1983·Granted Dec 13, 1983·15 cites·6 claims
- 0451US4187133AMethod for manufacturing a clutch facingAISIN SEIKI·Filed 1977·Granted Feb 5, 1980·7 cites·6 claims
- 0535US4416361AFriction facings reinforced with stitchingAISIN SEIKI·Filed 1981·Granted Nov 22, 1983·4 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →