Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6782820 | Printing blanket | Hiromasa Okubo, Seiji Tomono | 2004-08-31 |
| 6769362 | Printing blanket | Hiromasa Okubo, Seiji Tomono | 2004-08-03 |
| 5832824 | Printing blanket | Hiromasa Okubo | 1998-11-10 |