YH

Yutaka Hirashima

DK Denki Kagaku Kogyo: 4 patents #65 of 655Top 10%
TL Tokyo Electron Limited: 1 patents #3,538 of 5,567Top 65%
Overall (All Time): #1,277,860 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6309737 Circuit substrate Yoshitaka Taniguchi, Yasuhito Hushii, Yoshihiko Tujimura, Katsunori Terano, Takeshi Gotoh +4 more 2001-10-30
5698035 Heat-resistant electrode material, electrode using the same, and apparatus having plasma generating unit using this electrode Masahiko Matsudo, Akira Koshiishi, Kei Isozaki 1997-12-16
RE33905 Chromium carbide sintered body Kei Isozaki, Yasuo Imamura 1992-04-28
4927791 Chromium carbide sintered body Kei Isozaki, Yasuo Imamura 1990-05-22