Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6426475 | Vacuum valve | Kenji Watanabe, Kumi Uchiyama, Kiyoshi Kagenaga, Junichi Sato, Eiji Kaneko +1 more | 2002-07-30 |
| 6376791 | Vacuum valve | Kenji Watanabe, Kumi Uchiyama, Kiyoshi Kagenaga, Junichi Sato, Eiji Kaneko +1 more | 2002-04-23 |