Issued Patents All Time
Showing 101–125 of 147 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5510217 | Gallium phthalocyanine halide crystals, method for preparing the same and electrophotographic photoreceptor using the same | Kazuya Hongo, Masakazu Iijima, Noriyoshi Takahashi, Masaaki Suwabe, Hitoshi Takimoto | 1996-04-23 |
| 5508395 | Hydroxygallium phthalocyanine crystal, process for preparing same | Katsumi Daimon, Yasuo Sakaguchi, Ryosaku Igarashi | 1996-04-16 |
| 5495011 | Process for preparing hydroxygallium phthalocyanine crystal, product thereof and electrophotographic photoreceptor using the same | Katsumi Daimon, Masakazu Iijima, Yasuo Sakaguchi | 1996-02-27 |
| 5495049 | Triarylamine compounds useful in electrophotographic photoreceptors | Akira Imai, Ryosaku Igarashi | 1996-02-27 |
| 5493016 | Processes for the preparation of alkoxy-bridged metallophthalocyanine dimers | Richard A. Burt, George Liebermann, Gordon K. Hamer, Sandra J. Gardner, Carol A. Jennings +1 more | 1996-02-20 |
| 5476968 | N,N'-bis(p-hydroxymethylphenyl)benzidine compounds and method for preparing the same | Akira Imai | 1995-12-19 |
| 5472816 | Process for producing hydroxygallium phthalocyanine | Katsumi Daimon | 1995-12-05 |
| 5466796 | Alkoxy-bridged metallophthalocyanine dimers | Richard A. Burt, George Liebermann, Gordon K. Hamer, Sandra J. Gardner, Carol A. Jennings +1 more | 1995-11-14 |
| 5463044 | Process for preparing chlorogallium phthalocyanine crystal | Akira Imai, Masakazu Iijima | 1995-10-31 |
| 5463041 | Process for preparing purified hydroxymetal phthalocyanine and electrophotographic photoreceptor using the same | Katsumi Daimon | 1995-10-31 |
| 5463043 | Process for producing a dichlorotin phthalocyanine crystal | Akira Imai, Katsumi Daimon, Masakazu Iijima, Kiyokazu Mashimo, Yasuo Sakaguchi +1 more | 1995-10-31 |
| 5459004 | Process for preparing hydroxygallium phthalocyanine crystals and electrophotographic photoreceptor using the crystals | Katsumi Daimon, Akira Imai, Masakazu Iijima, Toru Ishii | 1995-10-17 |
| 5445909 | Electrophotographic photoreceptor | Yutaka Akasaki, Katsuhiro Sato | 1995-08-29 |
| 5416207 | Dichlorotin phthalocyanine crystal, process for producing the same, and electrophotographic photoreceptor using the same | Akira Imai, Satsumi Daimon, Masakazu Iijima, Toru Ishii, Yasuo Sakaguchi +1 more | 1995-05-16 |
| 5395722 | Electrophotographic photoreceptor and production process thereof | Motoko Komatsu | 1995-03-07 |
| 5393629 | Electrophotographic photoreceptor | Katsumi Daimon, Yasuo Sakaguchi, Kazuo Yamasaki, Masakazu Iijima, Michiaki Takahashi +7 more | 1995-02-28 |
| 5393881 | Crystalline forms of hydroxygallium phthalocyanine | Katsumi Daimon | 1995-02-28 |
| 5378569 | Oxytitaniumphthalocyanine hydrate crystal and electrophotographic photoreceptor using said crystal | Katsumi Daimon, Masakazu Iijima, Yasuo Sakaguchi, Hidemi Nukada, Akihiko Tokida | 1995-01-03 |
| 5362589 | Electrophotographic photoreceptor containing phthalocyanine mixed crystals | Akira Imai, Katsumi Daimon, Masakazu Iijima | 1994-11-08 |
| 5360475 | Process for preparing hydroxymetal phthalocyanine pigment | Katsumi Daimon, Yasuo Sakaguchi | 1994-11-01 |
| 5358813 | Crystals of chlorogallium phthalocyanine and method of preparing them | Masakazu Iijima, 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 | Akira Imai, Katsumi Daimon, Masakazu Iijima, Kiyokazu Mashimo, Yasuo Sakaguchi +1 more | 1994-08-16 |
| 5336578 | Phthalocyanine mixed crystal and electrophotographic photoreceptor containing the same | Akira Imai, Katsumi Damion, Masakazu Iijima | 1994-08-09 |
| 5308728 | Dichlorotin phthalocyanine crystal, process for producing the same, and electrophotographic photoreceptor using the same | Akira Imai, Katsumi Daimon, Masakazu Iijima, Toru Ishii, Yasuo Sakaguchi +1 more | 1994-05-03 |
| 5304446 | Hydroxyindium phthalocyanine crystals and electrophotographic photoreceptor | Katsumi Daimon, Akira Imai, Masakazu Iijima, Toru Ishii | 1994-04-19 |