Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6503673 | Phthalocyanine composition, process for production thereof, and electrophotographic photoreceptor | Tamotsu Horiuchi, Makoto Okaji | 2003-01-07 |
| 6485658 | Phthalocyanine, process for producing the same and electrophotographic photoreceptor using the same | Tamotsu Horiuchi, Makoto Okaji | 2002-11-26 |
| 5376486 | Electrophotographic photoreceptor with azo compound having particular coupler | Akira Itoh | 1994-12-27 |
| 5219689 | Electrophotographic photoreceptor comprising Azo compound | Akira Itoh | 1993-06-15 |
| 5141831 | Electrophotographic photoreceptor | Akira Itoh, Hideya Arisue | 1992-08-25 |