Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4529920 | Control apparatus for an automatic door with a minimum error in a detected door position | Yukio Yoshida | 1985-07-16 |
| 4449078 | Apparatus for providing an optimal opening and closing of a door | Masaaki Ogishi, Isao Hagiwara, Yukio Yoshida | 1984-05-15 |