Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868080 | Electrophotographic photosensitive member comprising aromatic azo pigment containing cyclic amino group | Yoshio Kashizaki | 1989-09-19 |
| 4830944 | Function separated photosensitive member having a diphenylamine derivative disazo charge generation material | Masakazu Matsumoto, Takao Takiguchi, Shozo Ishikawa | 1989-05-16 |