Issued Patents All Time
Showing 76–82 of 82 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4415633 | Heat-sensitive recording material | Sukenori Nakamura, Hiroharu Matsukawa | 1983-11-15 |
| 4401717 | Heat-sensitive recording material | Teppei Ikeda, Sadao Ishige, Nobuyoshi Sekikawa, Takekatsu Sugiyama | 1983-08-30 |
| 4390616 | Image recording members | Kozo Sato, Ken Iwakura | 1983-06-28 |
| 4341403 | Fluoran compounds, process for preparation thereof, and recording sheets using same | Kozo Sato, Ken Iwakura | 1982-07-27 |
| 4333984 | Heat-sensitive recording sheets | Hiroharu Matsukawa | 1982-06-08 |
| 4283458 | Heat-sensitive recording paper containing a novel electron accepting compound | Kozo Sato | 1981-08-11 |
| 4255491 | Heat-sensitive recording paper | — | 1981-03-10 |