Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5018617 | Workpiece pallet changer for machine tools | Ichiro Miyata, Keitaro Yonezawa | 1991-05-28 |
| 4445675 | Work-clamping unit for use in machine tools | — | 1984-05-01 |
| 4317358 | Die lifter unit for pressing or punching machine | Keitaro Yonezawa | 1982-03-02 |