Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5047383 | Heat-sensitive recording material with a substrate comprising a foamed polyester resin film containing minute cavities | Hiroo Hayashi, Katsuhiko Ishida | 1991-09-10 |
| 4904636 | Heat-sensitive recording material | Hiroo Hayashi | 1990-02-27 |