Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6161093 | Information access system and recording medium | Masao Watari, Makoto Akabane, Tetsuya Kagami, Kazuo Ishii, Yasuhiko Kato +5 more | 2000-12-12 |
| 5903867 | Information access system and recording system | Masao Watari, Makoto Akabane, Tetsuya Kagami, Kazuo Ishii, Yasuhiko Kato +5 more | 1999-05-11 |