Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6664772 | DC to DC converter producing output voltage exhibiting rise and fall characteristics independent of load thereon | Mitsuo Saeki, Hidekiyo Ozawa, Seiya Kitagawa, Toshiyuki Matsuyama, Takashi Matsumoto +2 more | 2003-12-16 |
| 6643479 | Air duct, cooling mechanism, and image forming device incorporating cooling mechanism | — | 2003-11-04 |
| 6639812 | Power supply control circuit that adjusts output power based on variable input power | Shigeaki Nakazawa, Hidekiyo Ozawa, Mitsuo Saeki, Kouichi Matsuda, Shigeo Tanaka | 2003-10-28 |