Issued Patents All Time
Showing 26–50 of 135 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8232031 | Naphthalenetetracarboxylic acid diimide derivative and electrophotographic photoconductor having the same | Masafumi Ohta, Yuuji Tanaka, Eiji Kurimoto, Keisuke Shimoyama | 2012-07-31 |
| 8178266 | Electrophotographic photoreceptor, image forming apparatus using the electrophotographic photoreceptor, and method of producing electrophotographic photoreceptor | Hiromi Tada, Nozomu Tamoto, Takafumi Iwamoto | 2012-05-15 |
| 8110326 | Electrophotographic photoreceptor, image forming apparatus, and process cartridge | — | 2012-02-07 |
| 7964327 | Electrophotographic photoreceptor and method of preparing the photoreceptor, and image forming apparatus, image forming method and process cartridge using the photoreceptor | Masanobu Gondoh, Akihiro Sugino, Hideo Nakamori, Shinji Nohsho, Takaaki Ikegami | 2011-06-21 |
| 7858278 | Electrophotographic photoreceptor, and image forming apparatus and process cartridge using the electrophotographic photoreceptor | Hiroshi Ikuno, Masafumi Ohta, Yuuji Tanaka, Hongguo Li | 2010-12-28 |
| 7855040 | Method for preparing photoreceptor, photoreceptor prepared by the method, and image forming method and apparatus and process cartridge using the photoreceptor | Yoshiki Yanagawa, Michio Kimura, Nozomu Tamoto, Hiromi Tada, Tetsuya Toshine +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, Nozomu Tamoto, Yoshiki Yanagawa +1 more | 2010-12-14 |
| 7838188 | Electrophotographic photoconductor, image forming method, image forming apparatus, and process cartridge | Nobuya Mori, Kazukiyo Nagai, Tetsuro Suzuki, Tetsuya Toshine | 2010-11-23 |
| 7381511 | Photoreceptor, image forming method and image forming apparatus using the photoreceptor, process cartridge using the photoreceptor and coating liquid for the photoreceptor | Takaaki Ikegami, Yasuo Suzuki, Nozomu Tamoto, Hidetoshi Kami, Yuuji Takana | 2008-06-03 |
| 7220522 | Electrophotographic photoreceptor, method for manufacturing the electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge using the electrophotographic photoreceptor | Takaaki Ikegami, Yasuo Suzuki | 2007-05-22 |
| 7183435 | Triphenylene compound, method for making | Yuuji Tanaka | 2007-02-27 |
| 7122284 | Electrophotographic photoconductor, image forming method and apparatus, and process cartridge using the photoconductor, and long-chain alkyl group containing bisphenol compound and polymer made therefrom | Shinichi Kawamura, Kazukiyo Nagai, Chiaki Tanaka, Michihiko Namba | 2006-10-17 |
| 7112392 | Electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge for image forming apparatus using the electrophotographic photoreceptor | Takaaki Ikegami, Yasuo Suzuki | 2006-09-26 |
| 7056633 | Electrophotographic photoconductor, image forming method and apparatus, and process cartidge using the photocondutor, and long-chain alkyl group containing bisphenol compound and polymer made therefrom | Shinichi Kawamura, Kazukiyo Nagai, Chiaki Tanaka, Michihiko Namba | 2006-06-06 |
| 7018755 | Electrophotographic photoconductor, electrophotography method using the same, electrophotographic apparatus, electrographic apparatus process cartridge and electrophotographic photoconductor outermost surface layer coating solution | Takaaki Ikegami, Yasuo Suzuki, Nozomu Tamoto, Hidetoshi Kami | 2006-03-28 |
| 6974654 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING METHOD AND APPARATUS, AND PROCESS CARTRIDGE USING THE PHOTOCONDUCTOR, AND LONG-CHAIN ALKYL GROUP CONTAINING BISPHENOL COMPOUND AND POLYMER MADE THEREFROM | Shinichi Kawamura, Kazukiyo Nagai, Chiaki Tanaka, Michihiko Namba | 2005-12-13 |
| 6909788 | Speaker voice coil bobbin and method of manufacturing same | Toshihiro Ishigaki | 2005-06-21 |
| 6867374 | Ceramic insulation coated electric wire self-fusing ceramic insulation coated electric wire coating composition and coil and voices coil for speaker | Toshihiro Ishigaki, Yoshitaka Kobayashi, Masatake Uehara | 2005-03-15 |
| 6861188 | Electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge therefor using the photoreceptor | Takaaki Ikegami, Yasuo Suzuki, Nozomu Tamoto, Hidetoshi Kami | 2005-03-01 |
| 6740202 | Speaker diaphragm and method of manufacturing same | Toshihiro Ishigaki, Hideo Sekikawa, Koji Maekawa | 2004-05-25 |
| 6596449 | Electrophotographic photoreceptor, and process cartridge and electrophotographic image forming apparatus using the electrophotographic photoreceptor | Kazukiyo Nagai, Chiaki Tanaka, Michihiko Namba, Shinichi Kawamura | 2003-07-22 |
| 6548216 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING METHOD AND APPARATUS, AND PROCESS CARTRIDGE USING THE PHOTOCONDUCTOR, AND LONG-CHAIN ALKYL GROUP CONTAINING BISPHENOL COMPOUND AND POLYMER MADE THEREFROM | Shinichi Kawamura, Kazukiyo Nagai, Chiaki Tanaka, Michihiko Namba | 2003-04-15 |
| 6544701 | REACTION PRODUCT, PROCESS FOR THE PRODUCTION THEREOF, ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR USING THE REACTION PRODUCT, ELECTROPHOTOGRAPHIC APPARATUS USING THE PHOTOCONDUCTOR, AND PROCESS CARTRIDGE FOR ELECTROPHOTOGRAPHIC APPARATUS | Kaoru Tadokoro, Masayuki Shoshi, Michihiko Namba, Chiaki Tanaka | 2003-04-08 |
| 6524761 | Mixture of titanyltetraazaporphyrin compounds and electrophotographic photoconductor using the same | Masayuki Shoshi, Kaoru Tadokoro, Chiaki Tanaka, Michihiko Namba | 2003-02-25 |
| 6492079 | Electrophotographic photoconductor, image forming apparatus, and process cartridge using the photoconductor | Kazukiyo Nagai, Chiaki Tanaka, Michihiko Namba, Shinichi Kawamura | 2002-12-10 |