Inventor · disambiguated record

Takehiko Tanaka

Also filed as: TANAKA TAKEHIKO

2 granted patents·5 citations·filing 1974–1974

43Inventor score

Technology areasA61Q C07C

Files withNIPPON CATALYTIC CHEM IND2

Top patents by PatentIndex Score

2 records

0139US3966775AProcess for the preparation of 1-substituted anthraquinonesNIPPON CATALYTIC CHEM IND·Filed 1974·Granted Jun 29, 1976·5 cites·38 claims
0233US3941815AProcess for the preparation of 5-nitro-1,4-naphthoquinoneNIPPON CATALYTIC CHEM IND·Filed 1974·Granted Mar 2, 1976·0 cites·16 claims

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