Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5706030 | Compact data input device having transparent touch panel | Mitsumasa Kako, Yoshijiro Yamamoto | 1998-01-06 |
| 5657434 | Method and apparatus for inputting, displaying and printing images | Yoshijiro Yamamoto, Mitsumasa Kako | 1997-08-12 |
| D309320 | Word processor | — | 1990-07-17 |
| 4882684 | Engaging device of a keyboard for a data processing unit | Toyonori Sasaki | 1989-11-21 |
| 4867582 | Printing apparatus | — | 1989-09-19 |
| 4516508 | Desk apparatus | Mitumasa Kako | 1985-05-14 |