Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11165377 | Control device for stepping motor and control method for stepping motor | Kazuo Takada, Kei Yamazaki | 2021-11-02 |
| 11139763 | Motor drive control device, motor unit, and motor drive control method | Haruka Miyaji, Kei Yamazaki, Takayuki Matsui, Kazuo Takada, Shigeki Miyaji | 2021-10-05 |