Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6460456 | Stamp making apparatus and attachment thereof | Koji Sugiyama, Naohito Asai, Tetsuji Fuwa, Takashi Okumura, Takashi Miki +1 more | 2002-10-08 |
| 6367382 | Stamp making device | Nachito Asai, Koji Sugiyama | 2002-04-09 |
| 6341561 | Stamp unit and method of manufacturing the stamp unit | Minoru Yamamoto | 2002-01-29 |