Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5019164 | Water-resistant ink composition | Hajime Tomita | 1991-05-28 |
| 5017224 | Water-resistant ink composition | Hajime Tomita | 1991-05-21 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5019164 | Water-resistant ink composition | Hajime Tomita | 1991-05-28 |
| 5017224 | Water-resistant ink composition | Hajime Tomita | 1991-05-21 |