Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810607 | Photosensitive member for electrophotography containing trisazo pigment having pyridylene group in its central skeleton | Masakazu Matsumoto, Takao Takiguchi | 1989-03-07 |