Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10837526 | Variable-speed speed-up mechanism | Yoshiyuki Okamoto, Yasushi Hirota | 2020-11-17 |
| 10663039 | Variable speed accelerator and method for controlling variable speed accelerator | Yoshiyuki Okamoto | 2020-05-26 |