Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4999461 | Coordinates input apparatus | Azuma Murakami, Teruyoshi Hagiwara, Yoichi Tuchida | 1991-03-12 |
| 4848496 | Coordinates input apparatus | Azuma Murakami, Teruyoshi Hagiwara, Yoichi Tuchida | 1989-07-18 |