Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6649855 | Contact arrangement for vacuum interrupter and vacuum interrupter using the contact arrangement | Akira Nishijima, Yoshihiko Matsui | 2003-11-18 |
| 6639169 | Contact for vacuum interrupter and vacuum interrupter using the contact | Yoshihiko Matsui, Akira Nishijima | 2003-10-28 |