Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702850 | Thermosensitive reversible color-developing and disappearing agent | Makoto Nishioka, Kazuo Yamane, Masaki Nishimura | 1997-12-30 |
| 5612280 | Thermosensitive recording material | Ayako Shirai, Takako Segawa, Kunitaka Toyofuku | 1997-03-18 |