SK

Shiro Koyama

TL Tokyo Electron Limited: 5 patents #1,450 of 5,567Top 30%
KT Kabushiki Kaisha Toshiba: 2 patents #9,982 of 21,451Top 50%
TL Tokyo Electron Yamanashi Limited: 1 patents #52 of 138Top 40%
📍 Fuchu, JP: #235 of 926 inventorsTop 30%
Overall (All Time): #1,053,985 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5665167 Plasma treatment apparatus having a workpiece-side electrode grounding circuit Yoichi Deguchi, Satoru Kawakami, Kenji Ishikawa 1997-09-09
5625526 Electrostatic chuck Masahide Watanabe, Masami Kubota, Kenji Ishikawa, Kouichi Kazama, Mitsuaki Komino +1 more 1997-04-29
5474643 Plasma processing apparatus Junichi Arami, Tamio Endo, Kazuo Kikuchi, Teruaki Shiraishi, Isahiro Hasegawa +3 more 1995-12-12
5320704 Plasma etching apparatus Keiji Horioka, Yukimasa Yoshida 1994-06-14
5236556 Plasma apparatus Takashi Yokota, Isahiro Hasegawa, Haruo Okano 1993-08-17