Issued Patents All Time
Showing 25 most recent of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12325779 | Cellulosic particle | Kenji Yao, Satomi KASHIWAGI, Shota MATOBA, Ayu NAITO, Kazusei YOSHIDA +6 more | 2025-06-10 |
| 12187861 | Cellulosic particle | Kenji Yao, Kazusei YOSHIDA, Ayu NAITO, Yuko IWADATE, Takahiro Ishizuka +3 more | 2025-01-07 |
| 12065547 | Cellulosic particle | Kenji Yao, Hideaki Yoshikawa, Masahiro OKI, Kazusei YOSHIDA, Ayu NAITO +3 more | 2024-08-20 |
| 9164418 | Developing device, and image forming apparatus using the same | Masaru Sakuma, Munenobu Okubo, Shinji Mitsui, Yasuyuki Tsutsumi, Kazuaki Iikura +4 more | 2015-10-20 |
| 9128413 | Developing device, and image forming apparatus using the same | Shinji Mitsui, Munenobu Okubo, Yasuyuki Tsutsumi, Kazuaki Iikura, Yosuke Ninomiya +4 more | 2015-09-08 |
| 9063466 | Developing device having an attaching unit for attaching developer and image forming apparatus including the same | Munenobu Okubo, Yasuyuki Tsutsumi, Shinji Mitsui, Kazuaki Iikura, Yosuke Ninomiya +4 more | 2015-06-23 |
| 9002244 | Image forming apparatus including developing device using toner holding member with specific surface roughness | Yoshifumi Ozaki, Shinji Mitsui, Akihiko Noda, Masahiro Andoh, Hisashi Murase +6 more | 2015-04-07 |
| 8945806 | Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, developer cartridge, process cartridge, image forming apparatus, and image forming method | Eiji Kawakami, Shintaro Anno, Michio Take | 2015-02-03 |
| 8916321 | Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, and image forming apparatus | Eiji Kawakami, Tetsuya Taguchi | 2014-12-23 |
| 8871416 | Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, developer cartridge, process cartridge, image forming method, and image forming apparatus | Yutaka Saito, Hiroki Ohmori | 2014-10-28 |
| 8728693 | Toner for developing electrostatic image, method of producing toner, cartridge, image forming method, and image forming apparatus | Tetsuya Taguchi, Asafumi FUJITA, Hiroshi Kamada, Masahiro Takagi | 2014-05-20 |
| 8728695 | Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, developer cartridge, process cartridge, image forming apparatus, and image forming method | Eiji Kawakami, Shintaro Anno | 2014-05-20 |
| 8652726 | Toner for developing electrostatic image, method of producing toner, cartridge, image forming method, and image forming apparatus | Asafumi FUJITA, Tetsuya Taguchi, Hiroshi Kamada, Masahiro Takagi | 2014-02-18 |
| 8580468 | Developer for electrostatic photography, process cartridge for image forming apparatus, image forming apparatus, and image forming method | Tetsuya Taguchi, Masahiro Takagi, Tsuyoshi Murakami | 2013-11-12 |
| 8563208 | Electrostatic charge image developing toner and method of producing the same, electrostatic charge image developer, toner cartridge, process cartridge, and image forming device | Hiroshi Nakazawa, Masanobu Ninomiya | 2013-10-22 |
| 8494404 | Image forming apparatus, image forming method, cleaning apparatus, and cleaning method | Masahiro Takagi, Tetsuya Taguchi | 2013-07-23 |
| 8431301 | Toner for developing electrostatic charge image, electrostatic charge image developer, toner cartridge, process cartridge, and image forming apparatus | Masanobu Ninomiya, Kiyohiro YAMANAKA, Eisuke Iwazaki, Hiroshi Nakazawa | 2013-04-30 |
| 8329375 | Electrostatic charge image developing toner and method of producing the same, electrostatic charge image developer, toner cartridge, process cartridge, and image forming device | Hiroshi Nakazawa, Masanobu Ninomiya | 2012-12-11 |
| 7972758 | Toner for development of electrostatic image, method of producing the same, electrostatic image developer, toner cartridge, process cartridge, and image forming apparatus | — | 2011-07-05 |
| 7906264 | Electrostatic latent image developing toner and method for producing the same, and electrostatic latent image developer, toner cartridge, process cartridge and image forming apparatus | Masaru Takahashi, Atsushi Sugawara, Masaki Nakamura, Yasuhiro Oya | 2011-03-15 |
| 7713669 | Toner for developing electrostatic images, electrostatic image developer, and image-forming method | Noriyuki Mizutani, Hideo Maehata, Hiroyuki Tanaka, Moegi Iguchi, Soichiro Kitagawa +5 more | 2010-05-11 |
| 7432031 | Toner for electrostatic charge developing, production method thereof, developer for electrostatic charge developing using the same, and image forming method | Noriyuki Mizutani, Hideo Maehata, Hiroyuki Tanaka, Soichiro Kitagawa, Moegi Iguchi | 2008-10-07 |
| 7291436 | Electrophotographic toner, method for producing the same, electrophotographic developer, and image forming method | Masaki Nakamura, Takashi Imai, Katsumi Daimon, Yuka Ishihara, Hirokazu Yamada +2 more | 2007-11-06 |
| 6942951 | Image forming method | Katsumi Daimon, Takashi Imai, Manabu Serizawa, Norihito Fukushima, Yuka Ishihara | 2005-09-13 |
| 6895205 | Image fixing apparatus with cooling unit and image fixing method | Masaki Nakamura, Toshimizu Ozawa, Yoshinari Ueno, Norihito Fukushima, Yuka Ishihara | 2005-05-17 |