Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4352860 | Thermosensitive recording material | Eiichi Kawamura | 1982-10-05 |
| 4311750 | Thermo-sensitive multi-color recording material and process for preparation thereof | Tetsuo Tanaka | 1982-01-19 |