Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9141014 | Toner for developing electrostatic charge image | Masaki Okubo, Tatsuji Orita, Hideyuki Otsuka, Kenichi Sato | 2015-09-22 |
| 9056884 | Process for producing a charge control agent | Atsushi Takesue, Yoshihiko Abe, Hideyuki Otsuka, Jun Watanabe, Shunsuke Saitoh | 2015-06-16 |
| 8900785 | Charge control agent and toner using the same | Ikuo Kimura, Masami Ito, Masaya Tojou, Masafumi Asakai | 2014-12-02 |
| 8790855 | Charge control agent and toner using same | Ikuo Kimura, Motonori Tsuji, Masami Ito, Masaya Tojo | 2014-07-29 |