Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885270 | Novel thermosensitive recording sheet | Kikuo Tsuchiya, Shingo Araki, Masaji Inagaki, Yumi Kudoh | 1989-12-05 |
| 4843058 | Thermosensitive recording sheet | Shingo Araki, Kikuo Tsuchiya, Masaji Inagaki, Yumi Kudoh | 1989-06-27 |
| 4833256 | Fluoran derivatives and recording material containing the same | Tetsuhiko Yamaguchi, Katsumi Murofushi, Masato Futagami, Nobuyuki Nagato, Kunio Imamura | 1989-05-23 |