Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5008231 | Heat sensitive recording material | Katsuaki Yoshizawa | 1991-04-16 |
| 4910184 | Heat-sensitive recording materials | Katsuhiko Ishida, Yoshihiro Shimizu, Takashi Kawasaki | 1990-03-20 |
| 4539225 | Method for the production of a heat-sensitive record material | Kazuo Kojima, Hitoshi Yamahira | 1985-09-03 |
| 4523205 | Heat-sensitive recording materials | Toshitake Suzuki, Ryuzo Hayashi, Naoto Arai | 1985-06-11 |
| 4400437 | Thermal recording paper | — | 1983-08-23 |
| 4355070 | Heat-sensitive record material | — | 1982-10-19 |
| 4311758 | Heat-sensitive record material | Takeshi Murakami, Hiroo Hayashi, Teruo Nakamura | 1982-01-19 |
| 4236732 | Heat-sensitive record material | Takeshi Murakami, Hiroo Hayashi, Teruo Nakamura | 1980-12-02 |