Inventor

UMEKAWA OSAMU

JP7 patents

⚠️ This page may combine multiple inventors who share the name “UMEKAWA OSAMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KATAYAMA CHEMICAL WORKS CO

5 patents

US4409353AOct 11, 1983

Easily dispersible composition for water soluble polymer

KATAYAMA CHEMICAL WORKS CO7 citations73

US4647577AMar 3, 1987

Microbicidal/microbistatic compositions for industrial use employing 4,5-dichloro-1,2-dithiol-3-one and haloacetic acid esters as the active agents

KATAYAMA CHEMICAL WORKS CO7 citations72

US4518610AMay 21, 1985

Microbicidal/microbistatic compositions and use thereof employing mixtures of 4,5-dichloro-1,2-dithiol-3-one and alkylenebisthiocyanate

KATAYAMA CHEMICAL WORKS CO13 citations72

US4334957AJun 15, 1982

Microbicidal compositions for industrial use

KATAYAMA CHEMICAL WORKS CO5 citations72

US4289581ASep 15, 1981

Microbicidal slimicide compositions for industrial use

KATAYAMA CHEMICAL WORKS CO14 citations72

YOSHITOMI PHARMACEUTICAL

1 patent

US4466975AAug 21, 1984

Microbicidal/microbistatic compositions for industrial use

YOSHITOMI PHARMACEUTICAL13 citations72

UMEKAWA OSAMU

1 patent

US5017592AMay 21, 1991

Stable biocide composition for industrial use

UMEKAWA OSAMU1 citations43