Inventor · disambiguated record

Masayuki Ohshima

Also filed as: OHSHIMA MASAYUKI

2 granted patents·73 citations·filing 1989–1991

68Inventor score

Technology areasC07D

Files withDAIICHI SEIYAKU CO2

Top patents by PatentIndex Score

2 records

0192US4985557AOptically active pyridobenzoxazine derivatives and intermediates thereofDAIICHI SEIYAKU CO·Filed 1989·Granted Jan 15, 1991·40 cites·1 claims
0287US5142046AOptically active pyridobenzoxazine derivatives and intermediates thereofDAIICHI SEIYAKU CO·Filed 1991·Granted Aug 25, 1992·33 cites·1 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →