Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6765168 | Electrode of vacuum circuit breaker, and method of producing electrode of vacuum circuit breaker | Yoshihiko Matsui, Akira Nishijima, Yoshihiro Fukatsu | 2004-07-20 |
| 6740838 | Contact for vacuum interrupter and vacuum interrupter using the contact | Yoshihiko Matsui, Akira Nishijima | 2004-05-25 |
| 6686552 | Contact for vacuum interrupter, and vacuum interrupter using same | Akira Nishijima, Yoshihiko Matsui, Takaaki Furuhata | 2004-02-03 |