Inventor · disambiguated record
Tatsuo Hirakawa
Also filed as: HIRAKAWA TATSUO
3 granted patents·28 citations·filing 1981–1991
70Inventor score
Technology areasC07D
Top patents by PatentIndex Score
3 records- 0188US4489072ACephalosporinsTOYAMA CHEMICAL CO LTD·Filed 1981·Granted Dec 18, 1984·18 cites·30 claims
- 0266US5144027ACephalosporins, process for producing the same, intermediates thereof and process for producing the intermediatesTOYAMA CHEMICAL CO LTD·Filed 1991·Granted Sep 1, 1992·8 cites·8 claims
- 0353US4673738ANovel intermediates of cephalosporins and process for producing 7-(substituted or unsubstituted amino)-3-substituted methyl-Δ3 -cephem-4-carboxylic acidsHANDI PAC INC·Filed 1984·Granted Jun 16, 1987·2 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →