Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4262938 | Color-developing sheet for pressure-sensitive recording sheets | Akihiro Yamaguchi, Tadashi Kobayashi, Hisamichi Murakami, Noboru Yamato, Akira Hasegawa | 1981-04-21 |