Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6479778 | Vacuum switch including windmill-shaped electrodes | Toshinori Kimura, Hiromi Koga, Atsushi Sawada | 2002-11-12 |
| 6359731 | Optical element switching apparatus | — | 2002-03-19 |