OU

Osamu Umekawa

KK Katayama Chemical Works Co., Ktd.: 6 patents #2 of 19Top 15%
YI Yoshitomi Pharmaceutical Industries: 3 patents #61 of 310Top 20%
Overall (All Time): #768,087 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
5017592 Stable biocide composition for industrial use 1991-05-21
4647577 Microbicidal/microbistatic compositions for industrial use employing 4,5-dichloro-1,2-dithiol-3-one and haloacetic acid esters as the active agents Sakae Katayama 1987-03-03
4518610 Microbicidal/microbistatic compositions and use thereof employing mixtures of 4,5-dichloro-1,2-dithiol-3-one and alkylenebisthiocyanate Sakae Katayama 1985-05-21
4466975 Microbicidal/microbistatic compositions for industrial use Masato Magami, Toshio Sato, Sakae Katayama 1984-08-21
4409353 Easily dispersible composition for water soluble polymer Yosuke Ito, Sakae Katayama 1983-10-11
4334957 Microbicidal compositions for industrial use Sakae Katayama 1982-06-15
4289581 Microbicidal slimicide compositions for industrial use Sakae Katayama 1981-09-15