Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5439516 | Heat sensitive color developing material | Hisake Tanabe, Yasuhiko Nakae, Satoshi Urano, Yoshio Eguchi | 1995-08-08 |
| 5302194 | Heat sensitive color developing material | Hisaki Tanabe, Yasuhiko Nakae, Yoshio Eguchi | 1994-04-12 |
| 5288686 | Heat sensitive color developing material | Hisaki Tanabe, Yasuhiko Nakae, Yoshio Eguchi | 1994-02-22 |