Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5702856 | Method for making an image and a photosensitive body for liquid development | Fumio Ojima, Toru Ishii, Katsumi Nukada | 1997-12-30 |
| 5654119 | Organic electronic device comprising charge-transporting polyester and image forming apparatus | Toru Ishii, Fumio Ojima, Tomozumi Uesaka, Tomoo Kobayashi, Katsumi Nukada +2 more | 1997-08-05 |
| 5626997 | Electrophotographic process | Fumio Ojima, Tomozumi Uesaka, Tomoo Kobayashi, Toru Ishii | 1997-05-06 |
| 5578406 | Electrophotographic photoreceptor | Fumio Ojima, Tomoo Kobayashi, Toru Ishii, Tomozumi Uesaka | 1996-11-26 |
| 5529868 | Electrophotographic photoreceptor | Fumio Ojima, Tomozumi Uesaka, Toru Ishii, Kazuyuki Nakamura, Takahiro Suzuki | 1996-06-25 |
| 5463043 | Process for producing a dichlorotin phthalocyanine crystal | Katsumi Nukada, Akira Imai, Katsumi Daimon, Masakazu Iijima, Yasuo Sakaguchi +1 more | 1995-10-31 |
| 5424159 | Electrophotographic photoreceptor | Fumio Ojima, Toru Ishii, Tomoo Kobayashi, Taketoshi Hoshizaki, Ryosaku Igarashi +1 more | 1995-06-13 |
| 5416207 | Dichlorotin phthalocyanine crystal, process for producing the same, and electrophotographic photoreceptor using the same | Akira Imai, Katsumi Nukada, Satsumi Daimon, Masakazu Iijima, Toru Ishii +1 more | 1995-05-16 |
| 5399452 | Electrophotographic photoreceptor | Ichiro Takegawa, Kazuyuki Nakamura, Tomoo Kobayashi, Toru Ishii, Yutaka Akasaki | 1995-03-21 |
| 5393629 | Electrophotographic photoreceptor | Katsumi Nukada, Katsumi Daimon, Yasuo Sakaguchi, Kazuo Yamasaki, Masakazu Iijima +7 more | 1995-02-28 |
| 5382489 | Electrophotographic photoreceptor with polycarbonate resin mixture | Fumio Ojima, Toru Ishii, Tomoo Kobayashi, Taketoshi Hoshizaki | 1995-01-17 |
| 5358813 | Crystals of chlorogallium phthalocyanine and method of preparing them | Masakazu Iijima, Katsumi Nukada, Katsumi Daimon, Akira Imai, Toru Ishii +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, Masakazu Iijima, Yasuo Sakaguchi +1 more | 1994-08-16 |
| 5308728 | Dichlorotin phthalocyanine crystal, process for producing the same, and electrophotographic photoreceptor using the same | Akira Imai, Katsumi Nukada, Katsumi Daimon, Masakazu Iijima, Toru Ishii +1 more | 1994-05-03 |
| 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, Masakazu Iijima, Kazuo Yamasaki +2 more | 1994-04-12 |
| 5283145 | Crystals of dichlorotin phthalocyanine, method of preparing the crystal, and electrophotographic photoreceptor comprising the crystal | Katsumi Nukada, Akira Imai, Yasuo Sakaguchi, Katsumi Daimon, Masakazu Iijima +1 more | 1994-02-01 |
| 5166017 | Electrophotographic photoreceptor | Taketoshi Hoshizaki, Fumio Ojima, Masahiko Hozumi, Kazuyuki Nakamura | 1992-11-24 |
| 5141832 | Electrophotographic photoreceptor with copolymerized polycarbonate resin | Ichiro Takegawa, Yasuo Sakaguchi, Makoto Takemoto | 1992-08-25 |
| 5104758 | Electrophotographic photoreceptor comprising a squarylium compound and selenium or a selenium alloy | Ryosaku Igarashi, Ichiro Takegawa, Yasuo Sakaguchi, Shigetoshi Nakamura, Kohichi Yamamoto | 1992-04-14 |
| 5032480 | Multilayer electrophotographic photoreceptor | Fumio Ojima, Masahiko Hozumi, Taketoshi Hoshizaki, Kazuyuki Nakamura | 1991-07-16 |
| 4999268 | Function separated electrophotographic photoreceptor containing selenium | Fumio Ojima, Masahiko Hozumi, Taketoshi Hoshizaki, Kazuyuki Nakamura | 1991-03-12 |