TK

Takashi Koyama

KA Kao: 2 patents #1,388 of 3,221Top 45%
TC Taiyo Kagaku Co.: 1 patents #46 of 128Top 40%
Overall (All Time): #2,242,425 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6123934 Hair cosmetic composition Kazuyo Watanabe, Hiroshi Nojiri, Sachio Naito, Michitaka Sawada, Genji Imokawa +2 more 2000-09-26
5714136 Hair cosmetic containing a cationic surfactant, fat and oil and an alkyl saccharide surfactant Kazuyuki Yahagi, Kazuhiro Tashiro, Yoshiyuki Eshita, Tsuyoshi Ohtomo, Fumiko Sazanami +1 more 1998-02-03