Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6698324 | Punch unit for punching a hole in a soft metal sheet | Junichi Nakao, Kazuoki Komiyama | 2004-03-02 |
| 6622601 | Punch unit for punching a hole in a soft metal sheet | Junichi Nakao, Kazuoki Komiyama | 2003-09-23 |