Inventor · disambiguated record
Ryoichi Tsukahara
Also filed as: TSUKAHARA RYOICHI
3 granted patents·7 citations·filing 1975–1976
57Inventor score
Files withMITSUI TOATSU CHEMICALS3
Top patents by PatentIndex Score
3 records- 0147US4033923AColoring resins by mixing naphthacenequinones therewithMITSUI TOATSU CHEMICALS·Filed 1976·Granted Jul 5, 1977·6 cites·10 claims
- 0236US4017509AProcess for producing substituted or unsubstituted 2-phenyl-1.2.3.-triazole-4-carboxaldehydeMITSUI TOATSU CHEMICALS·Filed 1975·Granted Apr 12, 1977·1 cites·10 claims
- 0327US3986826ADyeing synthetic and semisynthetic materials with naphthacenequinine derivativesMITSUI TOATSU CHEMICALS·Filed 1975·Granted Oct 19, 1976·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →