Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6941566 | Disc system | Hidetaka Watanabe, Shigehiro Itou, Takashi Matsuda | 2005-09-06 |
| 6392981 | Disc device | Hidetaka Watanabe, Shigehiro Itou, Takashi Matsuda | 2002-05-21 |
| 6256279 | Disc system | Hidetaka Watanabe, Shigehiro Itou, Takashi Matsuda | 2001-07-03 |