Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819091 | Switching power supply apparatus with over-temperature protection | Toru Takahashi | 2004-11-16 |
| 6815912 | Discharge lamp lighting apparatus and discharge lamp apparatus | Kazuo Okawa | 2004-11-09 |