Inventor · disambiguated record
Keizou Yamamoto
Also filed as: YAMAMOTO KEIZOU
2 granted patents·78 citations·filing 1985–1991
67Inventor score
Files withASAHI CHEMICAL IND2
Top patents by PatentIndex Score
2 records- 0181US5283193AProcess for producing optically active α-substituted organic acid and microorganism and enzyme used thereforASAHI CHEMICAL IND·Filed 1991·Granted Feb 1, 1994·47 cites·2 claims
- 0279US4774179AProcess for preparing a 7-aminocephalosporanic acid compoundASAHI CHEMICAL IND·Filed 1985·Granted Sep 27, 1988·31 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →