Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9833841 | Cutting method for inner circumferential face or outer circumferential face of work | Kouichi Amaya, Toshihiko Kato, Yasuori Takezawa, Zempoh Shirahama, Tetsuya Igarashi | 2017-12-05 |
| 9815120 | Cutting method for inner circumferential face or outer circumferential face of work | Kouichi Amaya, Toshihiko Kato, Yasunori Takezawa, Tetsuya Igarashi | 2017-11-14 |