Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10859932 | Toner, toner accommodating unit, and image forming apparatus | Tsuyoshi Sugimoto, Shinya Nakayama, Hiroshi Yamada, Hideyuki Santo, Ryuta Chiba +1 more | 2020-12-08 |
| 10088766 | Layered inorganic mineral, toner, and image forming apparatus | Hideyuki Santo, Tsuyoshi Sugimoto, Shinya Nakayama, Hiroshi Yamada, Ryuta Chiba +1 more | 2018-10-02 |
| 9921503 | Toner, developer, and image formation device | Hiroshi Yamada, Tsuyoshi Sugimoto, Susumu Chiba, Shinsuke Nagai, Kohsuke Nagata +2 more | 2018-03-20 |
| 9880479 | Toner, toner stored unit, image forming apparatus, and image forming method | Hideyuki Santoh, Tsuyoshi Sugimoto, Akinori Saitoh, Shin Hasegawa, Kohsuke Nagata +1 more | 2018-01-30 |
| 9851649 | Toner, developer, image forming apparatus, and image forming method | Keiji Makabe, Tsuyoshi Sugimoto, Akinori Saito, Toyoshi Sawada, Hiroshi Yamashita +4 more | 2017-12-26 |
| 9785074 | Polyester resin for toner, toner, developer, and image formation device | Kohsuke Nagata, Shinya Nakayama, Tsuyoshi Sugimoto, Hiroshi Yamada, Susumu Chiba +1 more | 2017-10-10 |
| 9720339 | Toner, developer using the toner, image forming apparatus | Shingo Sakashita, Shinya Nakayama, Masahide Yamada, Atsushi Yamamoto, Hideyuki Santo +1 more | 2017-08-01 |
| 9594322 | Toner for image formation, and developer and image forming apparatus using the toner | Tsuyoshi Sugimoto, Akinori Saito, Toyoshi Sawada, Keiji Makabe | 2017-03-14 |
| 9557671 | Electrostatic image developing toner, developer, and image forming apparatus | Ryuta Chiba, Shinya Nakayama, Hiroshi Yamada, Minoru Masuda, Akinori Saitoh +6 more | 2017-01-31 |
| 9519235 | Toner, developer using the toner, image forming apparatus | Shingo Sakashita, Shinya Nakayama, Masahide Yamada, Atsushi Yamamoto, Hideyuki Santo +1 more | 2016-12-13 |
| 9400439 | Toner, developer, and image forming apparatus | Kousuke Nagata, Masahide Yamada, Shinya Nakayama, Akiyoshi Sabu, Tatsuya Morita +2 more | 2016-07-26 |
| 9141013 | Electrophotographic toner, developer containing the toner, and image forming apparatus | Yoshihiro Moriya, Masahide Yamada, Taichi Nemoto, Yukiko Nakajima, Yoshitaka Yamauchi +3 more | 2015-09-22 |
| 9134638 | Toner, developer using the toner, image forming apparatus | Shingo Sakashita, Shinya Nakayama, Masahide Yamada, Atsushi Yamamoto, Hideyuki Santo +1 more | 2015-09-15 |
| 9012116 | Toner and developer | Daiki Yamashita, Yoshihiro Moriya, Yukiko Nakajima, Taichi Nemoto, Yoshitaka Yamauchi +2 more | 2015-04-21 |
| 8951705 | Development agent and image forming apparatus employing same | Shinya Nakayama, Atsushi Yamamoto, Yukiko Nakajima, Masahide Yamada, Hideyuki Santo | 2015-02-10 |
| 8951707 | Toner, developer and image forming apparatus | Atsushi Yamamoto, Masahide Yamada, Yukiko Nakajima, Shinya Nakayama, Hideyuki Santo | 2015-02-10 |
| 8932790 | Toner, developer including the toner, image forming apparatus using the toner, and block copolymer | Yoshitaka Yamauchi, Masahide Yamada, Yoshihiro Moriya, Taichi Nemoto, Yukiko Nakajima +3 more | 2015-01-13 |
| 8865384 | Electrophotographic toner, developer, and image forming apparatus | Masahide Yamada, Shinya Nakayama, Atsushi Yamamoto, Hideyuki Santo, Shingo Sakashita +2 more | 2014-10-21 |
| 8852834 | Toner for electrophotography, developer, image forming method, and process cartridge | Hideyuki Santo, Shinya Nakayama, Atsushi Yamamoto, Daiki Yamashita | 2014-10-07 |
| 8822118 | Toner, development agent, and image forming apparatus | Atsushi Yamamoto, Shinya Nakayama, Hideyuki Santo, Shingo Sakashita, Masahide Yamada | 2014-09-02 |
| 8808955 | Toner and development agent, image forming apparatus, and process cartridge using the same | Shinya Nakayama, Atsushi Yamamoto, Hideyuki Santo, Daiki Yamashita, Masahide Yamada | 2014-08-19 |
| 8795939 | Toner, and developer and image forming apparatus using the toner | Atsushi Yamamoto, Shinya Nakayama, Masahide Yamada, Hideyuki Santo | 2014-08-05 |
| 8735040 | Toner, developer, and image forming apparatus | Masahide Yamada, Yoshihiro Moriya, Taichi Nemoto, Yukiko Nakajima, Yoshitaka Yamauchi +3 more | 2014-05-27 |
| 8685604 | Toner, developer, and image forming apparatus | Yoshihiro Moriya, Masahide Yamada, Taichi Nemoto, Yukiko Nakajima, Yoshitaka Yamauchi +3 more | 2014-04-01 |
| 8603715 | Toner and image forming apparatus | Atsushi Yamamoto, Masahide Yamada, Shinya Nakayama, Hideyuki Santo, Daiki Yamashita | 2013-12-10 |