Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12320193 | Roll-up door with spiral brackets | Ruiping Ouyang, Kazuo Mita, Toru Kimura | 2025-06-03 |
| 11162301 | Roll-up door with spiral brackets | Ruiping Ouyang, Kazuo Mita, Toru Kimura | 2021-11-02 |