Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5126392 | Shade enhancing agent | Yoshinobu Ishikawa, Akihiro Kondo, Masaki Tumadori | 1992-06-30 |
| 5091356 | Thermosensitive recording member | — | 1992-02-25 |
| 4988663 | Heat sensitive paper | Sadashi Ueda | 1991-01-29 |
| 4985390 | Thermosensitive recording medium | Yoshiji Kanoh, Atsushi Suzuki, Sadashi Ueda | 1991-01-15 |
| 4373043 | Color deepening agent | Kazuhisa Yagi, Sho Suzuki | 1983-02-08 |