Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9835965 | Charge control agent and toner using same | Masaki Okubo, Ikuo Kimura, Masami Ito, Motonori Tsuji, Takeshi Yamamoto +2 more | 2017-12-05 |
| 9703223 | Toner, developer, and toner cartridge | Masaki Okubo, Motonori Tsuji, Masami Ito, Masaya Tojo, Tetsuya Yoshida | 2017-07-11 |
| 8900785 | Charge control agent and toner using the same | Ikuo Kimura, Masami Ito, Masaya Tojou, Kanae Hiraishi | 2014-12-02 |