Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5401708 | Heat-sensitive recording material | Yoshihiro Shimizu, Ritsuo Mandoh, Hisayoshi Mitoh | 1995-03-28 |
| 4668291 | Method for the production of a dispersion of colorless chromogenic material | Shuki Okauchi | 1987-05-26 |
| 4426424 | Heat-sensitive recording materials | Naoto Arai, Hiroshi Yoneda | 1984-01-17 |
| 4376150 | Heat-sensitive record material | Munetaka Morita, Katsuhiko Ishida | 1983-03-08 |