Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12393132 | Green toner for electrostatic charge image development, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method | Asafumi FUJITA, Tomoaki Tanaka, Tsuyoshi Murakami | 2025-08-19 |
| 12189335 | White toner, electrostatic charge image developer, and toner cartridge | Teppei Yawada, Asafumi FUJITA, Tsuyoshi Murakami | 2025-01-07 |
| 12169389 | Photoluminescent toner, electrostatic charge image developer, and toner cartridge | Tsuyoshi Murakami, Asafumi FUJITA, Teppei Yawada | 2024-12-17 |
| 11506989 | Electrostatic charge image developing toner and electrostatic charge image developer | Asafumi FUJITA, Narumasa SATO, Teppei Yawada, Motoko Sakai | 2022-11-22 |
| 11156934 | Carrier for developing electrostatic charge image, electrostatic charge image developer, and image forming apparatus | Asafumi FUJITA, Teppei Yawada, Motoko Sakai | 2021-10-26 |
| 10935900 | Toner for developing electrostatic charge image, electrostatic charge image developer, and toner cartridge | Daisuke Ishizuka, Narumasa SATO, Yuka Kawamoto, Erina SAITO, Norimasa Ozora +1 more | 2021-03-02 |
| 10578989 | Electrostatic charge image developer, developer cartridge, and process cartridge | Daisuke Ishizuka, Narumasa SATO, Yuka Kawamoto, Erina SAITO, Takahisa TATEKAWA +1 more | 2020-03-03 |
| 10520841 | Electrostatic image developing toner, electrostatic latent image developer, and toner cartridge | Narumasa SATO, Erina SAITO, Yuka Kawamoto, Noriyuki Mizutani, Daisuke Ishizuka | 2019-12-31 |
| 10466605 | Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge | Narumasa SATO, Daisuke Ishizuka, Takahisa TATEKAWA, Noriyuki Mizutani, Erina SAITO | 2019-11-05 |
| 10191399 | Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge | Noriyuki Mizutani, Erina SAITO, Narumasa SATO | 2019-01-29 |
| 9726997 | Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, and image forming apparatus | Asafumi FUJITA, Narumasa SATO, Eisuke Iwazaki, Tomoaki Tanaka, Noriyuki Mizutani | 2017-08-08 |
| 9715185 | Electrostatic-image developing toner, electrostatic-image developer, and toner cartridge | Yuka Kawamoto, Daisuke Ishizuka, Asafumi FUJITA, Narumasa SATO, Erina SAITO | 2017-07-25 |
| 9575428 | Electrostatic-image developing toner, electrostatic image developer, and toner cartridge | Narumasa SATO, Daisuke Ishizuka, Asafumi FUJITA, Erina SAITO, Yuka Kawamoto +1 more | 2017-02-21 |
| 9529292 | Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge | Tomoaki Tanaka, Eisuke Iwazaki, Narumasa SATO, Asafumi FUJITA, Noriyuki Mizutani | 2016-12-27 |
| 9477166 | Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge | Eisuke Iwazaki, Asafumi FUJITA, Tomoaki Tanaka, Narumasa SATO, Noriyuki Mizutani | 2016-10-25 |
| 9470994 | Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge | Noriyuki Mizutani, Tomoaki Tanaka, Eisuke Iwazaki, Asafumi FUJITA, Narumasa SATO +1 more | 2016-10-18 |
| 9304419 | Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, and process cartridge | Narumasa SATO, Eisuke Iwazaki, Tomoaki Tanaka, Asafumi FUJITA, Noriyuki Mizutani | 2016-04-05 |
| 9304423 | Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, and process cartridge | Eisuke Iwazaki, Narumasa SATO, Asafumi FUJITA, Noriyuki Mizutani, Tomoaki Tanaka | 2016-04-05 |