Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11947313 | Toner and two-component developer | Osamu Wada | 2024-04-02 |
| 11619889 | Two-component developer, developing device, and image forming device | Maiko Nagaoka, Takeshi Katoh, Keiichi Kikawa | 2023-04-04 |
| 10732531 | Toner, two-component developer, and method for producing toner | Keiichi Kikawa, Takeshi Katoh, Osamu Wada, TADANORI KANO, Yuya Kondo +2 more | 2020-08-04 |
| 9885968 | Toner | Yuya Kondo, Osamu Wada | 2018-02-06 |
| 9535350 | Method for producing ground toner | Keiichi Kikawa, Tadayuki Sawai, Keigo Mitamura, Yui Kawano, Shintaro Fukuoka | 2017-01-03 |
| 9274447 | Two-component color developer and image formation device using same | Tadayuki Sawai, Keiichi Kikawa, Keigo Mitamura, Yui Kawano, Shintaro Fukuoka | 2016-03-01 |
| 9250549 | Full-color toner set, full-color developer set, image-formation method using same, and image-formation device | Shintaro Fukuoka, Tadayuki Sawai, Keigo Mitamura, Yui Kawano, Keiichi Kikawa | 2016-02-02 |
| 8609316 | Method for manufacturing capsule toner | Takashi Hara, Yoshiaki Akazawa, Yoshitaka Kawase, Yoshinori Mutoh, Keiichi Kikawa | 2013-12-17 |
| 8431316 | Toner manufacturing method | Yoshiaki Akazawa, Yoshitaka Kawase, Yoshinori Mutoh, Keiichi Kikawa, Takashi Hara | 2013-04-30 |
| 8431305 | Capsule toner, two-component developer, and image forming apparatus | Keiichi Kikawa, Yoshiaki Akazawa, Yoshitaka Kawase, Yoshinori Mutoh, Takashi Hara | 2013-04-30 |
| 8431315 | Capsule toner, method of manufacturing the same, and two-component developer | Yoshinori Mutoh, Yoshiaki Akazawa, Yoshitaka Kawase, Keiichi Kikawa, Takashi Hara | 2013-04-30 |
| 8431317 | Method for manufacturing capsule toner | Yoshitaka Kawase, Keiichi Kikawa, Yoshinori Mutoh, Takashi Hara, Yoshiaki Akazawa | 2013-04-30 |
| 8409777 | Toner and method of manufacturing the same | Yasuhiro Shibai | 2013-04-02 |
| 8399171 | Method of manufacturing resin-layer coated carrier, resin-layer coated carrier, developer, developing device, and image forming apparatus | Takashi Hara, Yoshiaki Akazawa, Yoshitaka Kawase, Yoshinori Mutoh, Keiichi Kikawa | 2013-03-19 |
| 8389194 | Method of manufacturing toner, toner obtained by method thereof, one-component developer, two-component developer, developing device and image forming apparatus | Yoshiaki Akazawa, Yoshitaka Kawase, Yoshinori Mutoh, Keiichi Kikawa, Takashi Hara | 2013-03-05 |
| 8389193 | Method of manufacturing toner, toner obtained by method thereof, one-component developer, two-component developer, developing device, and image forming apparatus | Takashi Hara, Yoshitaka Kawase, Yoshiaki Akazawa, Keiichi Kikawa, Yoshinori Mutoh | 2013-03-05 |
| 8389195 | Capsule toner and method of manufacturing capsule toner | Yoshitaka Kawase, Keiichi Kikawa, Yoshinori Mutoh, Takashi Hara, Yoshiaki Akazawa | 2013-03-05 |
| 8313882 | Toner and two-component developer | Yoshitaka Kawase | 2012-11-20 |
| 8304158 | Method for manufacturing toner, toner, developer, developing device, and image forming apparatus | Yoshinori Mutoh, Yoshiaki Akazawa, Yoshitaka Kawase, Keiichi Kikawa, Takashi Hara | 2012-11-06 |
| 8232033 | Toner, method of manufacturing toner, developer, two-component developer, developing device, and image forming apparatus | Hiroshi Onda, Yasuo Imura | 2012-07-31 |
| 8197999 | Method for manufacturing toner, toner, developer, developing device, and image forming apparatus | Yoshitaka Kawase, Saori Yamada, Yoshiaki Akazawa, Yoshinori Mutoh, Keiichi Kikawa +1 more | 2012-06-12 |
| 8168363 | Toner and producing method thereof, developer, two-component developer, developing device and image forming apparatus | Yasuo Imura, Hiroshi Onda, Saori Yamada | 2012-05-01 |
| 8048603 | Toner, two-component developer, developing device, and image forming apparatus | Yasuo Imura | 2011-11-01 |
| 7955771 | Toner for electrostatic image development and process for preparing the same | Keiichi Kikawa, Yasuhiro Shibai | 2011-06-07 |
| 7769311 | Image forming apparatus controlling an attachment amount of toner and a preheating condition and image forming method | — | 2010-08-03 |