Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702863 | Production method of ink-oozing plate for stamp | — | 1997-12-30 |
| 5691102 | Process of producing ink-oozing plate for a stamp | — | 1997-11-25 |
| 5669299 | Method for preparing a thermosensitive stencil with a thermal label printer | Koichi Hirano | 1997-09-23 |
| 5611279 | Process of producing a printing plate for a stamp | Fumitoshi Nakamura, Haruhito Shiraishi, Hajime Toda, Susumu Suzuki, Koichi Hirano +1 more | 1997-03-18 |