Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10105814 | Polishing sheet, polishing tool and polishing method | Kiyotaka Sawada, Jun-Ying Zhang, Hidekazu Masuo, Wataru Kikuta, Tatsuya Tanaka +3 more | 2018-10-23 |
| 8824932 | Development device, and process cartridge and image forming apparatus incorporating same | Katsumi Masuda, Takamasa Ozeki, Nobuyuki Taguchi, Yuuki Satoh, Toshiki Hayashi +4 more | 2014-09-02 |
| 8731444 | Develop roller, develop unit, process cartridge, and image forming apparatus | Masayuki Ohsawa, Toshio Kojima, Yoshiyuki Takano, Noriyuki Kamiya, Takashi Innami +1 more | 2014-05-20 |
| 8682230 | Development device, process cartridge, and image forming apparatus including same having multiple recesses formed on a developer bearer | Nobuyuki Taguchi, Katsumi Masuda, Takamasa Ozeki, Yuuki Satoh, Toshiki Hayashi +4 more | 2014-03-25 |
| 8600271 | Magnet roller, developer holder element, develop unit, process cartridge, and image forming apparatus | Takashi Innami, Yoshiyuki Takano, Noriyuki Kamiya, Masayuki Ohsawa, Takumi Terasaka | 2013-12-03 |
| 8565652 | Development roller, development device, process cartridge and image-forming apparatus | Takumi Terasaka, Toshio Kojima, Noriyuki Kamiya, Masayuki Ohsawa, Hiroya Abe | 2013-10-22 |
| 8535116 | Magnetic particle carrying device, and developing unit, process cartridge, and image forming apparatus using the same, and surface treatment method of the same | Hiroya Abe, Tsuyoshi Imamura, Tadaaki Hattori, Yoshiyuki Takano, Noriyuki Kamiya +3 more | 2013-09-17 |
| 8500615 | Magnetic roller and manufacturing method thereof, developer carrier, development device, processing cartridge, and image forming apparatus | Tsuyoshi Imamura, Yoshiyuki Takano, Tadaaki Hattori, Noriyuki Kamiya, Hiroya Abe +3 more | 2013-08-06 |
| 8331834 | Developing unit, image forming apparatus incorporating same, and process cartridge including same | Masayuki Ohsawa, Yoshiyuki Takano, Katsumi Masuda, Yoshio Hattori, Yuji Suzuki +2 more | 2012-12-11 |
| 8175501 | Development roller including a development sleeve, surface treatment device that treats an outer surface of the development sleeve and wire member that roughens the outer surface of the development sleeve | Noriyuki Kamiya, Tsuyoshi Imamura, Sumio Kamoi, Yoshiyuki Takano, Mieko Terashima +4 more | 2012-05-08 |
| 8135316 | Development roller, development device, process cartridge and image forming device | Toshio Kojima, Noriyuki Kamiya, Rei Suzuki, Tadaaki Hattori, Yoshiyuki Takano +3 more | 2012-03-13 |
| 8135315 | Developer regulating member in a developing unit, process cartridge including same, and image forming apparatus incorporating same | Takamasa Ozeki, Katsumi Masuda, Yoshio Hattori, Hiroyuki Uenishi, Yuji Suzuki +5 more | 2012-03-13 |
| 8023867 | Magnet roller and method for the same, magnetic particle-support member, development device, process cartridge, and image forming apparatus | Yoshiyuki Takano, Tsuyoshi Imamura, Noriyuki Kamiya, Masayuki Ohsawa, Hiroya Abe +3 more | 2011-09-20 |
| 7925192 | Developing roller, developing device, process cartridge, and image forming apparatus | Toshio Kojima, Rei Suzuki | 2011-04-12 |
| 7917067 | Magnetic field generating member and manufacturing method thereof, magnetic particle support body, image development device, process cartridge and image forming apparatus | Yoshiyuki Takano, Noriyuki Kamiya, Masayuki Ohsawa, Mieko Terashima, Rei Suzuki +3 more | 2011-03-29 |
| 7907876 | Developer carrier, development device, process cartridge, and image forming apparatus | Masayuki Ohsawa, Tadaaki Hattori, Yoshiyuki Takano, Noriyuki Kamiya, Rei Suzuki +2 more | 2011-03-15 |
| 7899374 | Magnetic particle carrying device, and developing unit, process cartridge, and image forming apparatus using the same, and surface treatment method of the same | Hiroya Abe, Tsuyoshi Imamura, Tadaaki Hattori, Yoshiyuki Takano, Noriyuki Kamiya +3 more | 2011-03-01 |
| 7891094 | Method of manufacturing a hollow body used in an image forming apparatus | Tsuyoshi Imamura, Yoshiyuki Takano, Masayuki Ohsawa, Hiroya Abe, Mieko Terashima +3 more | 2011-02-22 |
| 7890030 | Magnetic roller, developer carrier, developing device, process cartridge, and image forming apparatus | Takashi Innami, Yoshiyuki Takano, Tadaaki Hattori, Noriyuki Kamiya, Masayuki Ohsawa +3 more | 2011-02-15 |
| 7664441 | Developer holding member, development device, process cartridge, image forming apparatus and method of manufacturing hollow body | Tsuyoshi Imamura, Yoshiyuki Takano, Masayuki Ohsawa, Hiroya Abe, Mieko Terashima +3 more | 2010-02-16 |
| 7572388 | Magnet compound material to be compression molded, a molded elongate magnetic, a magnet roller, a developing agent-carrying body, a developing apparatus and an image-forming apparatus | Satoshi Terashima, Sumio Kamoi, Yoshiyuki Takano, Tsuyoshi Imamura, Noriyuki Kamiya +1 more | 2009-08-11 |
| 7366454 | Long magnet, production method thereof, magnet roller and image forming device | Makoto Nakamura, Mieko Kakegawa, Sumio Kamoi, Tsuyoshi Imamura, Noriyuki Kamiya | 2008-04-29 |
| 7352983 | Development magnet roller, development device, process cartridge and image forming apparatus | Noriyuki Kamiya, Takahiro Yasunaga, Tsuyoshi Imamura, Sumio Kamoi, Mieko Kakegawa | 2008-04-01 |
| 7203450 | Developing roller, developing apparatus, process cartridge, and image formation apparatus | Mieko Kakegawa, Sumio Kamoi, Noriyuki Kamiya, Tsuyoshi Imamura | 2007-04-10 |
| 7189338 | Image forming apparatus and developing device therefor | Sumio Kamoi, Tsuyoshi Imamura, Mieko Kakegawa, Noriyuki Kamiya, Masayuki Takeshita | 2007-03-13 |