Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11092193 | Ball bearing, and machine tool spindle device | Kyohei Matsunaga | 2021-08-17 |
YK
Yoshiaki Katsuno
Overall (2021): #199,732 of 548,734Top 40%
1
Patents 2021