Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6118889 | Signature input apparatus and a signature verification system | Yutaka Abe, Masahiko Ikeda, Morio Sato | 2000-09-12 |
| 5949501 | Coordinates input device using liquid crystal sheet | Masahiko Ikeda, Morio Sato | 1999-09-07 |