Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6482747 | Plasma treatment method and plasma treatment apparatus | Kazue Takahashi, Saburo Kanai, Yoshiaki Satou | 2002-11-19 |
| 6156663 | Method and apparatus for plasma processing | Katsuya Watanabe, Saburo Kanai, Ryoji Hamasaki, Tsuyoshi Yoshida, Yutaka Omoto +3 more | 2000-12-05 |
| 5122175 | Method of and apparatus for producing superpure nitrogen | Shozi Koyama, Junichi Hosokawa, Masahiro Yamazaki, Shinjiroo Ueda, Kanji Fujimori | 1992-06-16 |
| 4746332 | Process for producing high purity nitrogen | Masaomi Tomomura, Tetsuro Haga, Shunsuke Nogita, Kiyoshi Ichihara | 1988-05-24 |
| 4746343 | Method and apparatus for gas separation | Masahiro Yamazaki, Shozi Koyama, Kazunori Nagae, Junichi Hosokawa | 1988-05-24 |
| 4704139 | Method and apparatus for separating gases | Akio Yamamoto, Kiyoshi Ichihara | 1987-11-03 |