Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6839160 | Method of activating optical communication system, channel increasing/decreasing method, and computer-readable recording medium | Takashi Tsuda, Kazuo Yamane, Makoto Murakami, Tooru Matsumoto, Hiroyuki Iwaki +1 more | 2005-01-04 |