Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6670778 | AC power generating apparatus having electrolytic capacitor and ceramic capacitor | — | 2003-12-30 |
| 6642668 | Discharge lamp device for reducing noise radiation and surge pulse current | Hironao Yamaguchi | 2003-11-04 |