Inventor · disambiguated record
Toshiyuki Hirohashi
Also filed as: HIROHASHI TOSHIYUKI
7 granted patents·48 citations·filing 1969–1980
80Inventor score
Files withSUMITOMO CHEMICAL CO7
Top patents by PatentIndex Score
7 records- 0195US3957783AThieno[2,3-d]pyrimidine derivativesSUMITOMO CHEMICAL CO·Filed 1973·Granted May 18, 1976·38 cites·5 claims
- 0252US4536334APreparation of β-lactam derivativesSUMITOMO CHEMICAL CO·Filed 1980·Granted Aug 20, 1985·3 cites·4 claims
- 0350US4001412A1-Substituted-1,2-dihydrothieno[2,3-d]-pyrimidin-2-one derivativesSUMITOMO CHEMICAL CO·Filed 1975·Granted Jan 4, 1977·2 cites·13 claims
- 0443US4002611APreparation of benzodiazepinesSUMITOMO CHEMICAL CO·Filed 1969·Granted Jan 11, 1977·3 cites·4 claims
- 0535US4010154ABenzodiazepinonesSUMITOMO CHEMICAL CO·Filed 1974·Granted Mar 1, 1977·2 cites·7 claims
- 0633US4079053ABenzodiazepine derivativesSUMITOMO CHEMICAL CO·Filed 1976·Granted Mar 14, 1978·0 cites·3 claims
- 0729US3989829A1,4-BenzodiazepinesSUMITOMO CHEMICAL CO·Filed 1975·Granted Nov 2, 1976·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →