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, Takao Igawa, Akihide Ito, Tsutomu Kagawa, Nobuo Yamada | 1997-07-01 |
| 5625524 | Reversible thermosensitive recording medium and method of producing the same | Yukio Konagaya, Takao Igawa, Fumihito Masubuchi, Akihide Itoh | 1997-04-29 |