Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4408107 | Vacuum interrupter | Eiji Umeya, Junichi Warabi, Yukio Kobari, Hidemi Kawaguchi | 1983-10-04 |
| 4394554 | Vacuum circuit interrupter | Junichi Warabi, Hidemi Kawaguchi, Yukio Kobari | 1983-07-19 |
| 4365127 | Vacuum power interrupter | Junichi Warabi | 1982-12-21 |
| 4310735 | Arc-shield supporting structure of a vacuum power interrupter | Junichi Warabi | 1982-01-12 |
| 4293748 | Vacuum circuit interrupter electrodes | Hifumi Yanagisawa | 1981-10-06 |