Inventor · disambiguated record
Hirozo Segawa
Also filed as: SEGAWA HIROZO
7 granted patents·77 citations·filing 1979–1991
85Inventor score
Top patents by PatentIndex Score
7 records- 0179US5028735APurification and preparation processes for methyl methacrylateMITSUI TOATSU CHEMICALS·Filed 1990·Granted Jul 2, 1991·20 cites·7 claims
- 0275US4987252AQuenching process of reaction product gas containing methacrylic acid and treatment method of quenched liquidMITSUI TOATSU CHEMICALS·Filed 1988·Granted Jan 22, 1991·15 cites·4 claims
- 0364US5196578APurification process of methacrylic acidMITSUI TOATSU CHEMICALS·Filed 1991·Granted Mar 23, 1993·10 cites·4 claims
- 0462US4460403A2,3-Dicyano 6 phenyl pyrazine herbicidesKYOWA GAS CHEM IND CO LTD·Filed 1980·Granted Jul 17, 1984·6 cites·14 claims
- 0551US4968846AMethod for the prevention of post oxidation of methacroleinMITSUI TOATSU CHEMICALS·Filed 1988·Granted Nov 6, 1990·13 cites·9 claims
- 0650US4275174ANeutron shielding polymer composition and a process for producing the sameKYOWA GAS CHEM IND CO LTD·Filed 1979·Granted Jun 23, 1981·8 cites·20 claims
- 0735US5118487AProcess for producing chlorosulfonyl isocyanateKURARAY CO·Filed 1990·Granted Jun 2, 1992·5 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →