Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4418941 | Color-forming sheet for no-carbon copying paper | Mitsuru Fuchigami, Mamoru Ishiguro | 1983-12-06 |
| 4296948 | Color-developing sheet for no-carbon copying process | Tsutomu Satoh, Hirokazu Tsukahara, Hideaki Senoh, Takahiro Torii | 1981-10-27 |