Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5022947 | Method for the preparation of a water-resistant printed material | Masamitsu Hasegawa, Satoshi Tamura, Isao Sugiyama | 1991-06-11 |
| 4966804 | Printed material imparted with improved water-proofness | Masamitsu Hasegawa, Satoshi Tamura, Isao Sugiyama | 1990-10-30 |
| 4877678 | Sheet material for ink-jet printing | Masamitsu Hasegawa, Satoshi Tamura, Isao Sugiyama | 1989-10-31 |