Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6784641 | Uninterruptible power supply | Hirotaka Sakai, Yasushi Mori, Yukinori Akamoto, Nobuo Shiojima | 2004-08-31 |
| 6768313 | Method for detecting tracking short | Yasunori Hamai, Takeshi Kamada | 2004-07-27 |