Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6313897 | Rubbing treatment apparatus having roller with specific implanting directions of the pile yarns and method of rubbing | Shinichi Murayama, Masashi Higuchi | 2001-11-06 |
| 4785579 | Circular door operating method and apparatus | Kiyoaki Sugiyama, Shigemitsu Shimoyama | 1988-11-22 |