Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4505144 | Apparatus for simultaneous both-end shaping of workpiece | Kazuyoshi Sakuma, Toshio Maki | 1985-03-19 |
| 4484464 | Electrical upsetting method and device therefor | Toshio Maki, Kazuyoshi Sakuma | 1984-11-27 |