Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4449078 | Apparatus for providing an optimal opening and closing of a door | Isao Hagiwara, Yukio Yoshida, Kenzo Oono | 1984-05-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4449078 | Apparatus for providing an optimal opening and closing of a door | Isao Hagiwara, Yukio Yoshida, Kenzo Oono | 1984-05-15 |