Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6437314 | Coordinate input pen, and electronic board, coordinate input system and electronic board system using the coordinate input pen | Yutaka Usuda, Sueo Amemiya, Jun Namiki, Naoki Miyauchi | 2002-08-20 |