Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10239172 | Gear manufacturing machine | Kazuyuki Ishizu, Noritaka Fujimura, Yoko HIRONO | 2019-03-26 |
| 10130997 | Main shaft device and machine tool provided with same | Kazuyuki Ishizu, Hidefumi OMOKAWA | 2018-11-20 |