Issued Patents All Time
Showing 51–75 of 89 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8808955 | Toner and development agent, image forming apparatus, and process cartridge using the same | Atsushi Yamamoto, Hideyuki Santo, Daiki Yamashita, Suzuka Amemori, Masahide Yamada | 2014-08-19 |
| 8795939 | Toner, and developer and image forming apparatus using the toner | Atsushi Yamamoto, Masahide Yamada, Hideyuki Santo, Suzuka Amemori | 2014-08-05 |
| 8795940 | Toner and developer | Tsuyoshi Sugimoto, Hiroshi Yamashita, Daisuke Asahina, Rintaro Takahashi, Masahide Yamada +2 more | 2014-08-05 |
| 8703376 | Toner and developer | Saori Yamada, Hisashi Nakajima, Mitsuo Aoki, Hyo Shu, Hiroyuki Kishida | 2014-04-22 |
| 8663888 | Toner | Yasutada Shitara, Yohichiroh Watanabe, Yasuo Katano, Ryota Inoue, Yoshihiro Moriya +3 more | 2014-03-04 |
| 8658340 | Toner, development agent, and image forming method | Shingo Sakashita, Ryota Inoue, Yoshihiro Moriya, Akiyoshi Sabu, Yukiko Nakajima +1 more | 2014-02-25 |
| 8603715 | Toner and image forming apparatus | Suzuka Amemori, Atsushi Yamamoto, Masahide Yamada, Hideyuki Santo, Daiki Yamashita | 2013-12-10 |
| 8546055 | Toner and developer | Hisashi Nakajima, Saori Yamada, Mitsuo Aoki, Hyo Shu, Hiroyuki Kishida | 2013-10-01 |
| 8329370 | Toner, image forming apparatus, image forming method, and process cartridge | Akihiro Kotsugai, Akiyoshi Sabu | 2012-12-11 |
| 8114560 | Toner, image forming apparatus, image forming method, and process cartridge using the toner | Akihiro Kotsugai, Akiyoshi Sabu, Hiroshi Yamashita, Hiroshi Yamada, Junichi Awamura +1 more | 2012-02-14 |
| 8084176 | Toner, developer, and image forming method | Yasuaki Iwamoto, Yasutada Shitara, Hiroyuki Kishida | 2011-12-27 |
| 8043780 | Toner, and developer, developing apparatus, process cartridge, image forming apparatus and image forming method | Hideki Sugiura | 2011-10-25 |
| 8017292 | Toner, as well as image forming apparatus and image forming method using the same | Akiyoshi Sabu, Akihiro Kotsugai, Hiroshi Yamashita, Tsuyoshi Sugimoto, Hiroshi Yamada +1 more | 2011-09-13 |
| 8007974 | Toner, image forming apparatus using the same, image forming method using the same, and process cartridge | Akihiro Kotsugai, Yasuaki Iwamoto, Yasutada Shitara | 2011-08-30 |
| 7960083 | Image forming apparatus, image forming method, and process cartridge | Akihiro Kotsugai, Akiyoshi Sabu | 2011-06-14 |
| 7862973 | Toner and developer, and image forming apparatus, image forming method and process cartridge | Akihiro Kotsugai, Yasuaki Iwamoto, Yasutada Shitara, Yohichiroh Watanabe | 2011-01-04 |
| 7860438 | Image forming apparatus using toner including an external additive at an additive burial rate of not less than 40 percent | Yuuji Sawai | 2010-12-28 |
| 7759036 | Toner and production method thereof, image forming apparatus and image forming method, and process cartridge | Tomoko Utsumi, Satoshi Mochizuki, Hideki Sugiura, Tomoyuki Ichikawa, Minoru Masuda | 2010-07-20 |
| 7749674 | Toner, developer, image developer and image forming apparatus | Hideki Sugiura, Satoshi Mochizuki, Yasuaki Iwamoto, Yasuo Asahina, Kazuhiko Umemura +3 more | 2010-07-06 |
| 7642032 | Toner, developer, image forming apparatus and image forming method | Hideki Sugiura, Satoshi Mochizuki, Akihiro Kotsugai, Yasuo Asahina, Osamu Uchinokura +6 more | 2010-01-05 |
| 7611815 | External additive for toner for electrophotography, toner for electrophotography, double-component developer for electrophotography, image-forming process using the toner, and image-forming apparatus using the toner | Hideki Sugiura, Satoshi Mochizuki, Kazuhiko Umemura, Yasuo Asahina | 2009-11-03 |
| 7608377 | Image forming method and image forming apparatus | Hisashi Nakajima, Hideki Sugiura, Fumihiro Sasaki, Akihiro Kotsugai, Satoshi Mochizuki | 2009-10-27 |
| 7566521 | Toner, developer, toner container, process cartridge, image forming apparatus, and image forming method | Akihiro Kotsugai, Satoshi Mochizuki, Hisashi Nakajima, Yasuo Asahina, Osamu Uchinokura +8 more | 2009-07-28 |
| 7547497 | Toner, and developer, image developer and image forming apparatus using the toner | Osamu Uchinokura, Masami Tomita, Hisashi Nakajima, Koichi Sakata, Akihiro Kotsugai +5 more | 2009-06-16 |
| 7521164 | Toner, and, developer, toner container, process cartridge, image forming apparatus and image forming method | Satoshi Mochizuki, Yasuaki Iwamoto, Yasuo Asahina, Akihiro Kotsugai, Masayuki Ishii +17 more | 2009-04-21 |