Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10054866 | Toner | Masatake Tanaka, Hidekazu Fumita, Masashi Kawamura, Shiro Kuroki, Kenji Ookuba | 2018-08-21 |
| 9366981 | Toner and toner production method | Kentaro Yamawaki, Takeshi Tsujino, Hidekazu Fumita, Junya Asaoka | 2016-06-14 |
| 8865385 | Toner | Kenichi Nakayama, Shinya Yachi, Takeshi Kaburagi, Shiro Kuroki | 2014-10-21 |
| 8822120 | Toner | Shinya Yachi, Kazumi Yoshizaki, Kenichi Nakayama, Shiro Kuroki | 2014-09-02 |
| 8247147 | Toner | Koji Abe, Shinya Yachi, Satoshi Handa, Kazumi Yoshizaki, Emi Tosaka +2 more | 2012-08-21 |
| 7704661 | Toner and image forming method | Naotaka Ikeda, Shinya Yachi, Katsuyuki Nonaka, Emi Watanabe, Koji Abe | 2010-04-27 |