KK

Keiji Kumazawa

NC Nippon Oil & Fats Co.: 2 patents #97 of 409Top 25%
📍 Ebeye: #1,994 of 4,528 inventorsTop 45%
Overall (All Time): #2,299,175 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5244935 Composition of ultraviolet curing antifogging agent and process for forming antifogging coating film Yoshihiro Oshibe, Yasuhiro Yamamoto, Hiroshi Ohmura 1993-09-14
5180760 Anti-fogging resin film-forming composition Yoshihiro Oshibe, Toshihiro Izumi, Hideki Doya, Hiroshi Ohmura, Yasuhiro Yamamoto 1993-01-19