Inventor · disambiguated record
Osamu Umekawa
Also filed as: UMEKAWA OSAMU
7 granted patents·60 citations·filing 1979–1989
84Inventor score
Top patents by PatentIndex Score
7 records- 0180US4518610AMicrobicidal/microbistatic compositions and use thereof employing mixtures of 4,5-dichloro-1,2-dithiol-3-one and alkylenebisthiocyanateKATAYAMA CHEMICAL WORKS CO·Filed 1981·Granted May 21, 1985·13 cites·12 claims
- 0267US4466975AMicrobicidal/microbistatic compositions for industrial useYOSHITOMI PHARMACEUTICAL·Filed 1982·Granted Aug 21, 1984·13 cites·5 claims
- 0364US4334957AMicrobicidal compositions for industrial useKATAYAMA CHEMICAL WORKS CO·Filed 1980·Granted Jun 15, 1982·5 cites·11 claims
- 0459US4647577AMicrobicidal/microbistatic compositions for industrial use employing 4,5-dichloro-1,2-dithiol-3-one and haloacetic acid esters as the active agentsKATAYAMA CHEMICAL WORKS CO·Filed 1985·Granted Mar 3, 1987·7 cites·6 claims
- 0559US4289581AMicrobicidal slimicide compositions for industrial useKATAYAMA CHEMICAL WORKS CO·Filed 1979·Granted Sep 15, 1981·14 cites·13 claims
- 0645US4409353AEasily dispersible composition for water soluble polymerKATAYAMA CHEMICAL WORKS CO·Filed 1982·Granted Oct 11, 1983·7 cites·13 claims
- 0730US5017592AStable biocide composition for industrial useUMEKAWA OSAMU·Filed 1989·Granted May 21, 1991·1 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →