Issued Patents All Time
Showing 1–25 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12429791 | Toner | Kazunari Ooyama, Yuu Nishimura, Hitoshi Sano, Toru Takahashi, Kazuki Murata +5 more | 2025-09-30 |
| 12429793 | Magnetic carrier and two-component developer | Yuu Nishimura, Yuzo Tokunaga, Hironori Minagawa, Nobuhiro Yoshida | 2025-09-30 |
| 12386282 | Magnetic carrier, two-component developer, and developer for replenishment | Nobuhiro Yoshida, Hironori Minagawa, Yuzo Tokunaga, Yuu Nishimura | 2025-08-12 |
| 12099326 | Toner | Shin Kitamura, Daisuke Tsujimoto, Kazunari Ooyama, Yuu Nishimura, Kazuki Murata +5 more | 2024-09-24 |
| 11698594 | Toner | Toru Takahashi, Hitoshi Sano, Kazunari Ooyama, Yuu Nishimura, Kohji Takenaka +1 more | 2023-07-11 |
| 10877391 | Magnetic carrier, two-component developer, replenishing developer, and image forming method | Ryuichiro Matsuo, Hironori Minagawa, Wakashi Iida | 2020-12-29 |
| 10859936 | Magnetic carrier, two-component developer, replenishment developer, and image forming method | Ryuichiro Matsuo, Hironori Minagawa, Wakashi Iida | 2020-12-08 |
| 10852653 | Magnetic carrier, two-component developer, developer for replenishment, and image forming method | Ryuichiro Matsuo, Hironori Minagawa, Wakashi Iida | 2020-12-01 |
| 10838317 | Magnetic carrier, two-component developer, replenishing developer, and image forming method | Ryuichiro Matsuo, Hironori Minagawa, Wakashi Iida | 2020-11-17 |
| 10409188 | Magnetic carrier, two-component developer, replenishing developer, and image forming method | Hironori Minagawa, Wakashi Iida | 2019-09-10 |
| 10007206 | Magnetic carrier, two-component developer, replenishing developer, and image-forming method | Hironori Minagawa, Wakashi Iida, Atsushi Nakano | 2018-06-26 |
| 9958809 | Magnetic carrier | Yuto Onozaki, Hironori Minagawa, Wakashi Iida | 2018-05-01 |
| 9785070 | Magnetic carrier, two-component developer, replenishment developer, and image formation method | Hironori Minagawa, Wakashi Iida, Atsushi Nakano | 2017-10-10 |
| 9778598 | Magnetic carrier | Yuto Onozaki, Hironori Minagawa, Wakashi Iida | 2017-10-03 |
| 9599920 | Magnetic carrier and two-component developer | Hironori Minagawa, Yuto Onozaki, Wakashi Iida | 2017-03-21 |
| 9541853 | Magnetic carrier, two-component developer, replenishing developer, and image forming method | Hironori Minagawa, Wakashi Iida, Minoru Yoshifuku, Yuto Onozaki | 2017-01-10 |
| 9513571 | Magnetic carrier, two-component developer, developer for replenishment, and image forming method | Hironori Minagawa, Yuto Onozaki, Minoru Yoshifuku, Wakashi Iida | 2016-12-06 |
| 9500975 | Magnetic carrier and two-component developer | Hironori Minagawa, Yuto Onozaki, Minoru Yoshifuku, Wakashi Iida | 2016-11-22 |
| 9341973 | Magnetic carrier, two-component developer, developer for replenishment, and image forming method | Minoru Yoshifuku, Wakashi Iida, Hironori Minagawa, Yuto Onozaki | 2016-05-17 |
| 7983581 | Fixing method and fixing device with specified temperature relationships for recording medium | Koh Ishigami, Hiroyuki Fujikawa, Naoki Okamoto, Yoshinobu Baba, Takayuki Itakura | 2011-07-19 |
| 7442478 | Toner and method for forming image | Takayuki Itakura, Yuko Sato, Hiroyuki Fujikawa, Hirohide Tanikawa | 2008-10-28 |
| 7396626 | Toner | Hiroyuki Fujikawa, Takayuki Itakura, Naoki Okamoto, Koh Ishigami, Yoshinobu Baba +1 more | 2008-07-08 |
| 7396629 | Image forming method and image forming apparatus | Yoshinobu Baba, Hiroyuki Fujikawa, Koh Ishigami, Naoki Okamoto, Takayuki Itakura | 2008-07-08 |
| 7381515 | Image forming method and image forming apparatus | Hiroyuki Fujikawa, Koh Ishigami, Naoki Okamoto, Yoshinobu Baba, Takayuki Itakura | 2008-06-03 |
| 7320850 | Magenta toner | Takayuki Itakura, Yuko Sato, Hiroyuki Fujikawa, Hirohide Tanikawa | 2008-01-22 |