Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6768006 | Phthalocyanine crystal, production process therefor, and electrophotographic photosensitive member, process cartridge and apparatus using the crystal | Masato Tanaka, Hidetoshi Hirano, Kazue Asakura, Atsushi Fujii | 2004-07-27 |