Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853036 | Ink for ink-jet recording and ink-jet recording process using the same | Yasuko Tomida | 1989-08-01 |
| 4849770 | Ink for use in ink jet and ink jet printing method using the same | Kazuo Iwata, Yasuko Tomida | 1989-07-18 |
| 4838938 | Recording liquid and recording method by use thereof | Yasuko Tomida | 1989-06-13 |