Issued Patents 1994
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5362589 | Electrophotographic photoreceptor containing phthalocyanine mixed crystals | Katsumi Nukada, Akira Imai, Katsumi Daimon | 1994-11-08 |
| 5358813 | Crystals of chlorogallium phthalocyanine and method of preparing them | Katsumi Nukada, Katsumi Daimon, Akira Imai, Toru Ishii, Yasuo Sakaguchi +2 more | 1994-10-25 |
| 5338636 | Dichlorotin phthalocyanine crystal electrophotographic photoreceptor using the same, and coating composition for electrophotographic photoreceptor | Katsumi Nukada, Akira Imai, Katsumi Daimon, Kiyokazu Mashimo, Yasuo Sakaguchi +1 more | 1994-08-16 |
| 5336578 | Phthalocyanine mixed crystal and electrophotographic photoreceptor containing the same | Katsumi Nukada, Akira Imai, Katsumi Damion | 1994-08-09 |
| 5308728 | Dichlorotin phthalocyanine crystal, process for producing the same, and electrophotographic photoreceptor using the same | Akira Imai, Katsumi Nukada, Katsumi Daimon, Toru Ishii, Yasuo Sakaguchi +1 more | 1994-05-03 |
| 5304446 | Hydroxyindium phthalocyanine crystals and electrophotographic photoreceptor | Katsumi Daimon, Katsumi Nukada, Akira Imai, Toru Ishii | 1994-04-19 |
| 5302710 | Phthalocyanine mixed crystal and electrophotographic photoreceptor containing the same | Katsumi Nukada, Akira Imai, Katsumi Daimon | 1994-04-12 |
| 5302479 | Crystals of hydroxygallium phthalocyanine, method of preparing the crystals, photoconductive material comprising the crystals, and electrophotographic photoreceptor comprising the material | Katsumi Daimon, Katsumi Nukada, Akira Imai, Kazuo Yamasaki, Kiyokazu Mashimo +2 more | 1994-04-12 |
| 5298617 | Oxytitaniumphthalocyanine hydrate crystal and electrophotographic photoreceptor using said crystal | Katsumi Nukada, Katsumi Daimon, Yasuo Sakaguchi, Hidemi Nukada, Akihiko Tokida | 1994-03-29 |
| 5292604 | Phthalocyanine crystal of mixed pigments and electrophotographic photoreceptor using the same | Katsumi Nukada, Akira Imai, Katsumi Daimon | 1994-03-08 |
| 5290928 | Process for preparing oxytitanium phthalocyanine hydrate crystal | Katsumi Nukada, Akira Imai, Katsumi Daimon | 1994-03-01 |
| 5283145 | Crystals of dichlorotin phthalocyanine, method of preparing the crystal, and electrophotographic photoreceptor comprising the crystal | Katsumi Nukada, Akira Imai, Yasuo Sakaguchi, Katsumi Daimon, Toru Ishii +1 more | 1994-02-01 |