Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5663327 | Hydroxygallium phthalocyanine crystal, process for producing the same, and electrophotographic photoreceptor containing the same | Fumiaki Tambo, Yasuo Sakaguchi, Kazuo Yamasaki | 1997-09-02 |
| 5643703 | Hydroxygallium phthalocyanine crystal, process for preparing same, and electrophotographic photoreceptor comprising same | Katsumi Nukada, Yasuo Sakaguchi, Ryosaku Igarashi | 1997-07-01 |
| 5622801 | Phthalocyanine pigment and dispersion thereof and electrophotographic photoreceptor containing the pigment | Hidemi Nukada, Takahiro Suzuki, Katsumi Nukada, Yasuo Sakaguchi | 1997-04-22 |