Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11169460 | Toner | Shohei Kototani, Kentaro Yamawaki, Masatake Tanaka, Taiji Katsura, Masamichi Sato | 2021-11-09 |
| 11061342 | Electrophotographic apparatus, process cartridge and cartridge set | Noriyoshi Umeda, Shohei Tsuda, Shohei Kototani, Masahiro Kurachi, Kazuhiro Yamauchi +1 more | 2021-07-13 |
| 11003104 | Toner | Taiji Katsura, Masamichi Sato, Shohei Kototani, Kentaro Yamawaki, Masatake Tanaka | 2021-05-11 |
| 11003105 | Toner and toner manufacturing method | Masamichi Sato, Shohei Kototani, Kentaro Yamawaki, Masatake Tanaka, Taiji Katsura | 2021-05-11 |
| 10976679 | Toner | Masatake Tanaka, Taiji Katsura, Masamichi Sato, Shohei Kototani, Kentaro Yamawaki | 2021-04-13 |
| 10942466 | Toner with an external additive of an organosilicon polymer particle having a hydroxyl group | Masatake Tanaka, Taiji Katsura, Masamichi Sato, Shohei Kototani, Kentaro Yamawaki | 2021-03-09 |