Inventor · disambiguated record

Takafumi Ohkawa

Also filed as: OHKAWA TAKAFUMI

2 granted patents·7 citations·filing 1999–1999

52Inventor score

Technology areasC07F C09K

Files withDAIHACHI CHEM IND2

Top patents by PatentIndex Score

2 records

0142US6605736B1Process for the preparation of condensed phosphoric estersDAIHACHI CHEM IND·Filed 1999·Granted Aug 12, 2003·3 cites·8 claims
0233US6613928B1Process for the preparation of condensed phosphoric estersDAIHACHI CHEM IND·Filed 1999·Granted Sep 2, 2003·4 cites·4 claims

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