Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6657412 | Pulse width modulation method, pulse width modulator and power converter | Seiji Ishida, Keijiro Sakai, Toshiaki Okuyama, Hiroshi Fujii, Hiroyuki Tomita +2 more | 2003-12-02 |
| 6630789 | Flat display device | Takatoshi Hirota, Kazuo Imaoka, Satoshi Yokoyama, Mitsuharu Sato, Shiro Naoi +1 more | 2003-10-07 |