Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9639014 | Electrostatic charge image developer, developer cartridge, and process cartridge | Yosuke Tsurumi, Takuro Watanabe, Masaaki Usami | 2017-05-02 |
| 9535349 | Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge | Shuji Sato, Yosuke Tsurumi, Masaaki Usami, Takuro Watanabe | 2017-01-03 |