Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5568079 | Step-up method and step-up circuit | — | 1996-10-22 |
| 5512938 | Teleconference terminal | — | 1996-04-30 |
| 4999551 | Method for controlling opening/closing of door in automatic door system | Yukio Yoshida | 1991-03-12 |
| 4694607 | Apparatus for detecting door movement data in an automatic door system | Takao Ishida, Yukio Yoshida | 1987-09-22 |