YK

Yukihiro Koshika

SO Sony: 3 patents #10,744 of 25,231Top 45%
📍 Rifu, JP: #819 of 2,101 inventorsTop 40%
Overall (All Time): #1,625,295 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6319325 Apparatus for producing thin film, process for producing thin film and guide roller Ryoichi Hiratsuka, Kikuji Kawakami, Yoshihito Ebine, Atsuhiro Abe 2001-11-20
5914180 Magnetic recording medium Jota Ito, Takashi Chiba, Kenichi Sato, Hidetoshi Honda, Toshiharu Uchimi +2 more 1999-06-22
5431833 Lubricant and magnetic recording medium therewith Hirofumi Kondo, Toshiharu Uchimi 1995-07-11