Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6700129 | Electronic board system and coordinates-inputting pen | Yutaka Usuda, Yoshikazu Shinkai, Ichirou Takeuchi, Yuji Tsukamoto | 2004-03-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6700129 | Electronic board system and coordinates-inputting pen | Yutaka Usuda, Yoshikazu Shinkai, Ichirou Takeuchi, Yuji Tsukamoto | 2004-03-02 |