Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6479778 | Vacuum switch including windmill-shaped electrodes | Toshinori Kimura, Kenichi Koyama, Atsushi Sawada | 2002-11-12 |
HK
Hiromi Koga
Overall (2002): #206,290 of 266,432Top 80%
1
Patents 2002