Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8530124 | Hydroxygallium phthalocyanine composite pigment, electrophotographic photoconductor containing the same, and image forming device and process cartridge for image forming device using the same | Hiromi Sakaguchi, Masafumi Ohta | 2013-09-10 |
| 8383304 | Gallium phthalocyanine compound, and image bearing member, image forming method, image forming apparatus, and process cartridge using the gallium phthalocyanine compound | Masafumi Ohta | 2013-02-26 |
| 8335456 | Image forming apparatus, image forming method, and process cartridge | Yoshiaki Kawasaki, Mitsuaki Hirose | 2012-12-18 |
| 8227156 | Electrophotographic photoconductor, image forming apparatus, image forming method, and process cartridge | Keisuke Shimoyama, Eiji Kurimoto, Tatsuya Niimi, Shinichi Kawamura | 2012-07-24 |
| 8206880 | Electrophotographic photoreceptor, and image forming apparatus and process cartridge therefor using the photoreceptor | Hiromi Tada, Masafumi Ohta, Tatsuya Niimi, Norio Nagayama, Yuuji Tanaka | 2012-06-26 |
| 8207312 | Method of preparing complex-AZO pigment and complex-AZO pigment thereof | Masafumi Ohta, Hiromi Tada | 2012-06-26 |
| 8197997 | Electrophotographic photoconductor, production method thereof, image forming method and image forming apparatus using photoconductor, and process cartridge | Yoshiaki Kawasaki, Tetsuro Suzuki | 2012-06-12 |
| 8114563 | Electrophotographic photoreceptor and method of preparing the photoreceptor, and image forming method, image forming apparatus and process cartridge therefor using the photoreceptor | Mitsuaki Hirose, Yoshiaki Kawasaki | 2012-02-14 |
| 8059992 | Corona charger, and process cartridge and image forming apparatus using same | Makoto Yasuda, Naohiro Toda, Takeshi Orito, Shinji Nohsho | 2011-11-15 |
| 7937025 | Scorotron corona charger, process cartridge, and image forming apparatus | Shinji Nohsho | 2011-05-03 |
| 7879519 | Image bearing member and image forming apparatus using the same | Naohiro Toda, Takaaki Ikegami, Makoto Yasuda, Takeshi Orito | 2011-02-01 |
| 7871747 | Electrophotographic photoconductor having charge blocking and moire preventing layers | Keisuke Shimoyama, Eiji Kurimoto, Takeshi Orito, Tatsuya Niimi, Shinichi Kawamura +1 more | 2011-01-18 |
| 7855040 | Method for preparing photoreceptor, photoreceptor prepared by the method, and image forming method and apparatus and process cartridge using the photoreceptor | Michio Kimura, Nozomu Tamoto, Hiromi Tada, Tetsuya Toshine, Tomoyuki Shimada +1 more | 2010-12-21 |
| 7851119 | Electrophotographic photoconductor, method for producing the same, image forming process, image forming apparatus and process cartridge | Tetsuya Toshine, Chiaki Tanaka, Michio Kimura, Tomoyuki Shimada, Nozomu Tamoto +1 more | 2010-12-14 |
| 7629103 | Photoconductor, manufacturing method thereof, image forming process and image forming apparatus using photoconductor, and process cartridge | Hiroshi Ikuno, Hiroshi Tamura, Tetsuro Suzuki | 2009-12-08 |
| 7556903 | Electrophotographic photoreceptor, and image forming method, apparatus and process cartridge therefor using the photoreceptor | Hiroshi Ikuno, Hongguo Li, Kazukiyo Nagai, Hiroshi Tamura, Tetsuro Suzuki | 2009-07-07 |
| 7473504 | Electrophotographic photoreceptor, and image forming method, apparatus and process cartridge therefor using the photoreceptor | Hiroshi Tamura, Tetsuro Suzuki, Naohiro Toda, Yoshiaki Kawasaki | 2009-01-06 |
| 7416823 | Electrophotographic photoconductor, and image formation method, image formation apparatus, and process cartridge for image formation apparatus using the same | Hiroshi Ikuno, Hongguo Li, Kazukiyo Nagai, Hiroshi Tamura, Tetsuro Suzuki +2 more | 2008-08-26 |
| 7390600 | Latent electrostatic image bearing member, process cartridge, image forming apparatus, and image forming process | Naohiro Toda, Hiroshi Tamura, Tetsuro Suzuki | 2008-06-24 |