Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643851 | Reversible thermosensitive recording label and reversible thermosensitive recording card | Yukio Konagaya, Akihide Ito, Tohru Nogiwa, Tsutomu Kagawa, Nobuo Yamada | 1997-07-01 |
| 5625524 | Reversible thermosensitive recording medium and method of producing the same | Yukio Konagaya, Fumihito Masubuchi, Akihide Itoh, Tohru Nogiwa | 1997-04-29 |