Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9904187 | Cylindrical member used in electrophotographic photoconductor, electrophotographic photoconductor, image forming apparatus, process cartridge, and method for producing cylindrical member used in electrophotographic photoconductor | Masahiro Andoh | 2018-02-27 |
| 8679336 | Microchannel device, separation apparatus, and separation method | Takayuki Yamada, Seiichi Takagi, Hiroshi Kojima, Masaki Hirota, Kazuaki Tabata +1 more | 2014-03-25 |
| 8655220 | Electrophotographic photoreceptor, process cartridge and image forming apparatus | Masahiro Iwasaki, Katsumi Nukada, Wataru Yamada, Kenta IDE, Hirofumi Nakamura +4 more | 2014-02-18 |
| 8426099 | Colored resin particles, manufacturing method of the colored resin particles and toner for electrostatically charged image development | Tomohito Nakajima, Hiroyuki Moriya, Hideya KATSUHARA, Seiichi Takagi | 2013-04-23 |
| 8360243 | Liquid transporting apparatus, classifying apparatus, and classifying method | Takayuki Yamada, Hiroshi Kojima, Kazuaki Tabata, Masaki Hirota | 2013-01-29 |
| 8226332 | Liquid transporting method and classifying method | Hiroshi Kojima, Seiichi Takagi | 2012-07-24 |
| 8215490 | Device for classifying particles and method for classifying particles | Tetsuo Ohta, Hiroshi Kojima, Seiichi Takagi | 2012-07-10 |
| 8163807 | Blending apparatus, blending method, phase inversion emulsifying method, and method for producing resin particle dispersion | Hideya KATSUHARA, Hiroyuki Moriya, Tomohito Nakajima | 2012-04-24 |
| 8087515 | Separation method and separation apparatus | Hiroshi Kojima, Seiichi Takagi, Tetsuo Ohta | 2012-01-03 |
| 7968264 | Electrophotographic photoreceptor, process cartridge and image-forming apparatus | Yukiko KAMIJO | 2011-06-28 |
| 7770738 | Classifying device and method of classification | Kazuaki Tabata, Hiroshi Kojima, Takayuki Yamada, Seiichi Takagi, Tetsuo Ohta +1 more | 2010-08-10 |
| 7572375 | Method and device for treating fine particles | Seiichi Takagi, Hiroshi Miyamoto, Tetsuo Ohta, Kazuki Inami | 2009-08-11 |
| 7381512 | Hydroxygallium phthalocyanine pigment and process for the production thereof, electrophotographic photoreceptor, process cartridge, electrophotographic device and image formation method | Kozo Ota, Masahiko Miyamoto, Yukiko KAMIJO, Hidemi Nukada, Kenji Inoue | 2008-06-03 |
| 6921618 | Photoconductive organic pigment, photoconductive organic pigment dispersion liquid, electrophotographic photoreceptor and electrophotographic device using the same | Seiichi Takagi | 2005-07-26 |
| 6322945 | Process for producing an electrophotographic photoreceptor and the electrophotographic produced by that process | Wataru Nakabayashi, Koichi Yasaku, Kazuaki Aoki, Masaaki Suwabe, Kiyoshi Hashimoto +1 more | 2001-11-27 |
| 5688619 | Chlorogalium phthalocyanine crystal and electrophotographic photoreceptor containing same | Hitoshi Takimoto | 1997-11-18 |
| 5588991 | Process for producing chlorogallium phthalocyanine crystal | Hitoshi Takimoto | 1996-12-31 |
| 5510217 | Gallium phthalocyanine halide crystals, method for preparing the same and electrophotographic photoreceptor using the same | Katsumi Nukada, Masakazu Iijima, Noriyoshi Takahashi, Masaaki Suwabe, Hitoshi Takimoto | 1996-04-23 |
| 5286591 | Electrophotographic photoreceptor with subbing layer | — | 1994-02-15 |
| 5200286 | Electrophotographic photoreceptor | Yuichi Yashiki, Seiji Ashiya | 1993-04-06 |
| 5153085 | Electrophotographic photosensitive member and image forming process | Yutaka Akasaki, Hidekazu Aonuma, Katsuhiro Sato, Katsumi Nukada, Teruumi Marumo | 1992-10-06 |
| 5116702 | Electrophotographic light-sensitive material comprising a charge generating layer and a charge transfer layer | Sadao Okano, Hidekazu Aonuma, Hiroshi Miyamoto | 1992-05-26 |
| 5102757 | Electrophotographic photosensitive member and image forming process | Yutaka Akasaki, Hidekazu Aonuma, Katsuhiro Sato, Katsumi Nukada, Teruumi Marumo | 1992-04-07 |
| 5091276 | Electrophotographic reverse image forming process | Yutaka Akasaki, Hidekazu Aonuma, Katsuhiro Sato, Katsumi Nukada, Teruumi Marumo | 1992-02-25 |
| 5085960 | Electrophotographic photosensitive member and image forming process | Yutaka Akasaki, Hidekazu Aonuma, Katsuhiro Sato, Katsumi Nukada, Teruumi Marumo | 1992-02-04 |