Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11261942 | Speed reducer capable of changing speed | Hiroyuki Akiyama, Yasuo Yoshii, Kazuo Yamaguchi, Kazuo Iritani | 2022-03-01 |
| 10871219 | Speed-switchable reduction gear | Hiroyuki Akiyama, Yasuo Yoshii, Kazuo Yamaguchi, Kazuo Iritani | 2020-12-22 |
| 4988049 | Air capacity controlling method for centralized blower system | — | 1991-01-29 |
| 4660369 | Bobbin transporting system | Tetsuo Inoue | 1987-04-28 |