Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829372 | Information-inputting device inputting contact point of object on recording surface as information | — | 2004-12-07 |
| 6762747 | Coordinate input detection device and method for electronic blackboard | Kunikazu Tsuda, Katsuyuki Omura | 2004-07-13 |
| 6674424 | Method and apparatus for inputting information including coordinate data | — | 2004-01-06 |