Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10935900 | Toner for developing electrostatic charge image, electrostatic charge image developer, and toner cartridge | Daisuke Ishizuka, Narumasa SATO, Yuka Kawamoto, Norimasa Ozora, Kotaro YOSHIHARA +1 more | 2021-03-02 |
| 10578989 | Electrostatic charge image developer, developer cartridge, and process cartridge | Kotaro YOSHIHARA, Daisuke Ishizuka, Narumasa SATO, Yuka Kawamoto, Takahisa TATEKAWA +1 more | 2020-03-03 |
| 10520841 | Electrostatic image developing toner, electrostatic latent image developer, and toner cartridge | Narumasa SATO, Yuka Kawamoto, Noriyuki Mizutani, Kotaro YOSHIHARA, Daisuke Ishizuka | 2019-12-31 |
| 10466605 | Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge | Narumasa SATO, Kotaro YOSHIHARA, Daisuke Ishizuka, Takahisa TATEKAWA, Noriyuki Mizutani | 2019-11-05 |
| 10191399 | Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge | Noriyuki Mizutani, Kotaro YOSHIHARA, Narumasa SATO | 2019-01-29 |
| 9715185 | Electrostatic-image developing toner, electrostatic-image developer, and toner cartridge | Yuka Kawamoto, Kotaro YOSHIHARA, Daisuke Ishizuka, Asafumi FUJITA, Narumasa SATO | 2017-07-25 |
| 9575428 | Electrostatic-image developing toner, electrostatic image developer, and toner cartridge | Narumasa SATO, Kotaro YOSHIHARA, Daisuke Ishizuka, Asafumi FUJITA, Yuka Kawamoto +1 more | 2017-02-21 |
| 9470994 | Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge | Kotaro YOSHIHARA, Noriyuki Mizutani, Tomoaki Tanaka, Eisuke Iwazaki, Asafumi FUJITA +1 more | 2016-10-18 |