Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833256 | Fluoran derivatives and recording material containing the same | Teijiro Kitao, Tetsuhiko Yamaguchi, Katsumi Murofushi, Masato Futagami, Nobuyuki Nagato | 1989-05-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833256 | Fluoran derivatives and recording material containing the same | Teijiro Kitao, Tetsuhiko Yamaguchi, Katsumi Murofushi, Masato Futagami, Nobuyuki Nagato | 1989-05-23 |