Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D584341 | Stamp | Toshio Watanabe | 2009-01-06 |
| D543233 | Stamp | — | 2007-05-22 |
| 4939990 | Multi-surfaced rotary stamping apparatus | Masayuki Hasegawa, Akira Ichihashi | 1990-07-10 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D584341 | Stamp | Toshio Watanabe | 2009-01-06 |
| D543233 | Stamp | — | 2007-05-22 |
| 4939990 | Multi-surfaced rotary stamping apparatus | Masayuki Hasegawa, Akira Ichihashi | 1990-07-10 |