Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10026570 | Vacuum valve | Yoshimitsu Niwa, Wataru Sakaguchi | 2018-07-17 |
| 9972467 | Vacuum valve and manufacturing method for the same | Naoki Asari, Junichi Sato, Tetsu Shioiri | 2018-05-15 |