Issued Patents All Time
Showing 1–25 of 72 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12429793 | Magnetic carrier and two-component developer | Yuu Nishimura, Yuzo Tokunaga, Nobuyoshi Sugahara, Nobuhiro Yoshida | 2025-09-30 |
| 12386282 | Magnetic carrier, two-component developer, and developer for replenishment | Nobuhiro Yoshida, Yuzo Tokunaga, Nobuyoshi Sugahara, Yuu Nishimura | 2025-08-12 |
| 12259684 | Magnetic carrier, two-component developer, and replenishment developer | Ryuji Murayama, Yuto Onozaki, Nobuhiro Yoshida | 2025-03-25 |
| 12222678 | Magnetic carrier, two-component developer, and replenishment developer | Ryuji Murayama, Yuto Onozaki, Nobuhiro Yoshida | 2025-02-11 |
| 12164265 | Magnetic carrier, two-component developer, and developer for replenishment | Yuto Onozaki, Ryuji Murayama, Nobuhiro Yoshida | 2024-12-10 |
| 11762307 | Toner | Junichi Tamura, Takaho Shibata, Ryuji Murayama, Kenta Mitsuiki, Megumi Shino | 2023-09-19 |
| 11131938 | Toner and image forming method | Ryuji Murayama, Takaho Shibata, Junichi Tamura, Kenta Mitsuiki, Megumi Shino | 2021-09-28 |
| 10877391 | Magnetic carrier, two-component developer, replenishing developer, and image forming method | Ryuichiro Matsuo, Nobuyoshi Sugahara, Wakashi Iida | 2020-12-29 |
| 10859936 | Magnetic carrier, two-component developer, replenishment developer, and image forming method | Nobuyoshi Sugahara, Ryuichiro Matsuo, Wakashi Iida | 2020-12-08 |
| 10852653 | Magnetic carrier, two-component developer, developer for replenishment, and image forming method | Ryuichiro Matsuo, Nobuyoshi Sugahara, Wakashi Iida | 2020-12-01 |
| 10838317 | Magnetic carrier, two-component developer, replenishing developer, and image forming method | Nobuyoshi Sugahara, Ryuichiro Matsuo, Wakashi Iida | 2020-11-17 |
| 10409188 | Magnetic carrier, two-component developer, replenishing developer, and image forming method | Nobuyoshi Sugahara, Wakashi Iida | 2019-09-10 |
| 10007206 | Magnetic carrier, two-component developer, replenishing developer, and image-forming method | Nobuyoshi Sugahara, Wakashi Iida, Atsushi Nakano | 2018-06-26 |
| 9958809 | Magnetic carrier | Nobuyoshi Sugahara, Yuto Onozaki, Wakashi Iida | 2018-05-01 |
| 9785070 | Magnetic carrier, two-component developer, replenishment developer, and image formation method | Nobuyoshi Sugahara, Wakashi Iida, Atsushi Nakano | 2017-10-10 |
| 9778598 | Magnetic carrier | Yuto Onozaki, Nobuyoshi Sugahara, Wakashi Iida | 2017-10-03 |
| 9671707 | Apparatus for heat-treating powder particles and method of producing toner | Yuichi Mizo, Takeshi Ohtsu, Takakuni Kobori, Kohji Takenaka, Junichi Hagiwara +3 more | 2017-06-06 |
| 9665021 | Heat treating apparatus for powder particles and method of producing toner | Takeshi Ohtsu, Yuichi Mizo, Takakuni Kobori, Kohji Takenaka, Junichi Hagiwara +2 more | 2017-05-30 |
| 9599920 | Magnetic carrier and two-component developer | Nobuyoshi Sugahara, Yuto Onozaki, Wakashi Iida | 2017-03-21 |
| 9541853 | Magnetic carrier, two-component developer, replenishing developer, and image forming method | Wakashi Iida, Nobuyoshi Sugahara, Minoru Yoshifuku, Yuto Onozaki | 2017-01-10 |
| 9513571 | Magnetic carrier, two-component developer, developer for replenishment, and image forming method | Nobuyoshi Sugahara, Yuto Onozaki, Minoru Yoshifuku, Wakashi Iida | 2016-12-06 |
| 9500975 | Magnetic carrier and two-component developer | Nobuyoshi Sugahara, Yuto Onozaki, Minoru Yoshifuku, Wakashi Iida | 2016-11-22 |
| 9372420 | Heat treating apparatus for powder particles and method of producing toner | Yuichi Mizo, Takakuni Kobori, Kohji Takenaka, Takeshi Ohtsu, Junichi Hagiwara +2 more | 2016-06-21 |
| 9341973 | Magnetic carrier, two-component developer, developer for replenishment, and image forming method | Minoru Yoshifuku, Wakashi Iida, Nobuyoshi Sugahara, Yuto Onozaki | 2016-05-17 |
| 9075328 | Heat treatment apparatus and method for manufacturing toner | Yuichi Mizo, Takeshi Ohtsu, Junichi Hagiwara, Yasushi Tamura | 2015-07-07 |