Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5703005 | Thermosensitive coloring composition and reversible thermosensitive recording medium using same | Masafumi Torii, Hiromi Furuya, Kyoji Tsutsui | 1997-12-30 |
| 5641724 | Reversible thermosensitive coloring composition and a thermosensitive recording medium using thereof | Takehito Yamaguchi, Kyoji Tsutsui | 1997-06-24 |