Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8691486 | Electrostatic image developing toner, developer, image forming apparatus, image forming method, and process cartridge | Ryota Inoue, Akihiro Kotsugai, Shingo Sakashita, Yukiko Nakajima, Keiko Osaka | 2014-04-08 |
| 8685604 | Toner, developer, and image forming apparatus | Yoshihiro Moriya, Masahide Yamada, Taichi Nemoto, Yukiko Nakajima, Yoshitaka Yamauchi +3 more | 2014-04-01 |
| 8679714 | Toner, developer, and image forming method | Ryota Inoue, Akihiro Kotsugai, Yoshihiro Moriya, Shingo Sakashita, Keiko Osaka +3 more | 2014-03-25 |
| 8663888 | Toner | Yasutada Shitara, Yohichiroh Watanabe, Yasuo Katano, Shinya Nakayama, Ryota Inoue +3 more | 2014-03-04 |
| 8658340 | Toner, development agent, and image forming method | Shingo Sakashita, Shinya Nakayama, Ryota Inoue, Yoshihiro Moriya, Yukiko Nakajima +1 more | 2014-02-25 |
| 8632932 | Toner, color toner set, developer, process cartridge, and image forming method | Akihiro Kotsugai, Ryota Inoue, Keiko Osaka, Shingo Sakashita, Yukiko Nakajima +1 more | 2014-01-21 |
| 8623580 | Toner, developer, image forming method and image forming apparatus | Yukiko Nakajima, Akihiro Kotsugai, Ryota Inoue, Shingo Sakashita, Keiko Osaka | 2014-01-07 |
| 8603713 | Toner, and developer, toner cartridge, image forming apparatus, process cartridge and image forming method using the same | Akihiro Kotsugai, Toyoshi Sawada, Ryota Inoue, Shingo Sakashita, Keiko Osaka +1 more | 2013-12-10 |
| 8383307 | Toner, developer, and image forming method and apparatus using the toner | Ryota Inoue, Akihiro Kotsugai, Toyoshi Sawada | 2013-02-26 |
| 8329370 | Toner, image forming apparatus, image forming method, and process cartridge | Shinya Nakayama, Akihiro Kotsugai | 2012-12-11 |
| 8263302 | Carrier for electrophotography and two-component developer | Yoshihiro Moriya, Akihiro Kotsugai, Toyoshi Sawada, Ryota Inoue, Shingo Sakashita | 2012-09-11 |
| 8114560 | Toner, image forming apparatus, image forming method, and process cartridge using the toner | Shinya Nakayama, Akihiro Kotsugai, Hiroshi Yamashita, Hiroshi Yamada, Junichi Awamura +1 more | 2012-02-14 |
| 8017292 | Toner, as well as image forming apparatus and image forming method using the same | Akihiro Kotsugai, Shinya Nakayama, Hiroshi Yamashita, Tsuyoshi Sugimoto, Hiroshi Yamada +1 more | 2011-09-13 |
| 7960083 | Image forming apparatus, image forming method, and process cartridge | Shinya Nakayama, Akihiro Kotsugai | 2011-06-14 |