Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6230785 | Electrically-driven closure apparatus for building | Yoshihiro Otsuka | 2001-05-15 |
| 6125907 | Electrically-driven closure apparatus for building | Yoshihiro Otsuka | 2000-10-03 |
| 5460216 | Device for moving a winding shaft in a building shutter | Masato Hirao, Yasunori Kobayashi, Masaaki Munekata, Mitsuhiro Yoshida, Yoshihiro Ohtsuka +3 more | 1995-10-24 |
| 5265662 | Shutter curtain for a building opening | Masato Hirao, Yasunori Kobayashi | 1993-11-30 |
| 5265663 | Architectural shutter curtain device | Masaaki Munekata | 1993-11-30 |