Issued Patents All Time
Showing 1–25 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10732542 | Image forming apparatus for increase of color toner in a color toner image in a special operation | Masato Tanaka, Keiji Kunimi | 2020-08-04 |
| 8483598 | Electrophotographic image forming method and apparatus with a cover film supplying device | Shigekazu Enoki, Takuya Suganuma, Ryuji Yoshida, Yoshinori Nakagawa, Atsushi Kurokawa +8 more | 2013-07-09 |
| 8433216 | Image forming apparatus | Satoru Ishikake, Hideyo Watanabe, Yosuke Saito, Hirokatsu Suzuki, Hiroki Atari +1 more | 2013-04-30 |
| 8428488 | Charging device, process cartridge, image forming apparatus, and toner | Haruji Mizuishi, Tokuya Ojimi, Toshio Koike, Takeshi Shintani, Yuji Arai +7 more | 2013-04-23 |
| 8422897 | Image forming apparatus | Hirokatsu Suzuki, Kazuhisa Sudo, Shunichi Hashimoto, Mugijirou Uno, Akira Shinshi +6 more | 2013-04-16 |
| 8385793 | Image forming apparatus preventing gaps between a conveyor belt and transfer sheet | Masaharu Furuya, Masahiko Satoh, Hirokatsu Suzuki, Hirohmi Tamura, Kazuya Saitoh +6 more | 2013-02-26 |
| 8195070 | Developer container, developer supplying device, and image forming apparatus | Hiroshi Hosokawa, Kiyonori Tsuda, Satoshi Narumi, Ryuta Takeichi, Yuji Arai +7 more | 2012-06-05 |
| 8005406 | Developer container, developer supplying device, and image forming apparatus | Hiroshi Hosokawa, Kiyonori Tsuda, Satoshi Narumi, Ryuta Takeichi, Yuji Arai +7 more | 2011-08-23 |
| 8000627 | Charging device, process cartridge, image forming apparatus, and toner | Haruji Mizuishi, Tokuya Ojimi, Toshio Koike, Takeshi Shintani, Yuji Arai +7 more | 2011-08-16 |
| 7925188 | Development device, process cartridge, and image forming apparatus using the development device | Tetsuya Senoh, Eisaku Murakami, Masahiko Satoh, Hideki Zemba, Takeshi Uchitani +2 more | 2011-04-12 |
| 7835673 | Developer container, developer supplying device, and image forming apparatus | Hiroshi Hosokawa, Kiyonori Tsuda, Satoshi Narumi, Ryuta Takeichi, Yuji Arai +7 more | 2010-11-16 |
| 7826786 | Image forming apparatus, lubricant applying device, transfer device, process cartridge, and toner | Takeo Suda, Shinichi Kawahara, Takatsugu Fujishiro, Tokuya Ojimi, Takeshi Tabuchi +15 more | 2010-11-02 |
| 7697870 | Developer container, developer supplying device, and image forming apparatus | Hiroshi Hosokawa, Kiyonori Tsuda, Satoshi Narumi, Ryuta Takeichi, Yuji Arai +7 more | 2010-04-13 |
| 7680429 | Charging device including charging roller and cleaning roller | Muraishi Takaya, Hiromichi Ninomiya, Atsushi Sampe, Yoshiyuki Kimura, Hiroyuki Nagashima +9 more | 2010-03-16 |
| 7672635 | Method and apparatus for image forming and effectively applying lubricant to an image bearing member | Yoshiki Hozumi, Toshio Koike, Ken Amemiya, Yuji Arai, Tokuya Ojimi +5 more | 2010-03-02 |
| 7672605 | Transfer device and image forming apparatus | Shin Kayahara, Yoshiyuki Kimura, Eisaku Murakami, Masahiko Satoh, Hideki Zemba +3 more | 2010-03-02 |
| 7630659 | Method and apparatus for image forming capable of effectively performing a charging process | Takeshi Uchitani, Eisaku Murakami, Yoshiyuki Kimura, Masahiko Satoh, Hideki Zemba +3 more | 2009-12-08 |
| 7603062 | Conductive member, and charging roller, process cartridge and image forming apparatus using same | Eiji Shimojo, Yoshiyuki Kimura, Masahiko Satoh, Takeshi Uchitani, Hideki Zemba +4 more | 2009-10-13 |
| 7555243 | Charging member, process cartridge including the same, and image forming apparatus including the same | Masahiko Satoh, Yoshiyuki Kimura, Eisaku Murakami, Hideki Zemba, Takeshi Uchitani +3 more | 2009-06-30 |
| 7539451 | Image forming apparatus and toner | Haruji Mizuishi, Tokuya Ojimi, Toshio Koike, Takeshi Shintani, Yuji Arai +8 more | 2009-05-26 |
| 7519317 | Developer container, developer supplying device, and image forming apparatus | Hiroshi Hosokawa, Kiyonori Tsuda, Satoshi Narumi, Ryuta Takeichi, Yuji Arai +7 more | 2009-04-14 |
| 7493075 | Cleaning device, process cartridge and image forming apparatus | Takeshi Shintani, Takuji Yoneda, Toshio Koike, Masato Yanagida, Naohiro Kumagai +5 more | 2009-02-17 |
| 7480476 | Developer container, developer supplying device, and image forming apparatus | Hiroshi Hosokawa, Kiyonori Tsuda, Satoshi Narumi, Ryuta Takeichi, Yuji Arai +7 more | 2009-01-20 |
| 7477862 | Charged device, cleaning device, process cartridge, toner, and image-forming device that uses these | Muraishi Takaya, Hiromichi Ninomiya, Atsushi Sampe, Yoshiyuki Kimura, Hiroyuki Nagashima +9 more | 2009-01-13 |
| 7477856 | Method and apparatus for image forming capable of effectively preventing resonance of frequencies | Takuzi Yoneda, Hiroshi Ono, Yuji Arai, Toshio Koike, Ken Amemiya +5 more | 2009-01-13 |