Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11141803 | Broach | You Tanaka, Toru Yamazaki | 2021-10-12 |
| 9849526 | Broach | Naoki Yoshizumi, Yoshio Kobayashi | 2017-12-26 |
| 9440298 | Helical broach | Naoki Yoshizumi, Yoshio Kobayashi, Hideyuki Fujiwara | 2016-09-13 |