Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4352855 | Transfer-onto-plain paper type pressure-sensitive copying paper | Shigetoshi Hiraishi, Toshihiko Matsushita | 1982-10-05 |
| 4320039 | Heat-sensitive recording composition with improved image stability | Fumio Okumura, Masahiro Higuchi, Masahiro Miyauchi, Syun Kamei | 1982-03-16 |