Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8623580 | Toner, developer, image forming method and image forming apparatus | Akihiro Kotsugai, Ryota Inoue, Akiyoshi Sabu, Shingo Sakashita, Keiko Osaka | 2014-01-07 |
| 8603713 | Toner, and developer, toner cartridge, image forming apparatus, process cartridge and image forming method using the same | Akihiro Kotsugai, Toyoshi Sawada, Ryota Inoue, Akiyoshi Sabu, Shingo Sakashita +1 more | 2013-12-10 |