Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643851 | Reversible thermosensitive recording label and reversible thermosensitive recording card | Yukio Konagaya, Takao Igawa, Akihide Ito, Tohru Nogiwa, Nobuo Yamada | 1997-07-01 |