Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9339879 | Processing method and processing device for concave-convex gear | Yoshiaki Ando, Masayuki Takeshima | 2016-05-17 |
| 8777696 | Processing method for concave-convex gear | Yoshiaki Ando, Masayuki Takeshima | 2014-07-15 |