Inventor · disambiguated record
Seiji Kumakura
Also filed as: KUMAKURA SEIJI
3 granted patents·33 citations·filing 1976–1989
68Inventor score
Technology areasA61P
Files withSANKYO CO3
Top patents by PatentIndex Score
3 records- 0176US4007189APyrrolotriazolopyrimidine derivatives and process for the preparation thereofSANKYO CO·Filed 1976·Granted Feb 8, 1977·19 cites·10 claims
- 0263US4914093APyridazinone derivatives, their preparation and useSANKYO CO·Filed 1989·Granted Apr 3, 1990·12 cites·31 claims
- 0335US4716162AFused 5 ring heterocyclic compounds, their preparation, and their anti-arrhythmic and diuretic useSANKYO CO·Filed 1985·Granted Dec 29, 1987·2 cites·30 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →