KK

Keigi Koyama

AK Asahi Denka Kogyo: 1 patents #75 of 196Top 40%
EI Eisai: 1 patents #611 of 998Top 65%
Overall (All Time): #3,989,922 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4568667 Aqueous preparation containing vitamin E and saponins Yoichi Shirakawa, Makoto Itoh, Yoshio Minowa 1986-02-04