Issued Patents All Time
Showing 1–19 of 19 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 | Tomoaki Tanaka, Kotaro YOSHIHARA, Tsuyoshi Murakami | 2025-08-19 |
| 12189335 | White toner, electrostatic charge image developer, and toner cartridge | Teppei Yawada, Kotaro YOSHIHARA, Tsuyoshi Murakami | 2025-01-07 |
| 12169389 | Photoluminescent toner, electrostatic charge image developer, and toner cartridge | Kotaro YOSHIHARA, Tsuyoshi Murakami, Teppei Yawada | 2024-12-17 |
| 11506989 | Electrostatic charge image developing toner and electrostatic charge image developer | Kotaro YOSHIHARA, Narumasa SATO, Teppei Yawada, Motoko Sakai | 2022-11-22 |
| 11156934 | Carrier for developing electrostatic charge image, electrostatic charge image developer, and image forming apparatus | Kotaro YOSHIHARA, Teppei Yawada, Motoko Sakai | 2021-10-26 |
| 10488772 | Electrostatic-image developing toner, electrostatic image developer, and toner cartridge | Shinichi Yaoi, Yasushige Nakamura, Seijiro Ishimaru | 2019-11-26 |
| 10353310 | Electrostatic-image developing toner, electrostatic image developer, and toner cartridge | Shinichi Yaoi, Yasushige Nakamura, Seijiro Ishimaru | 2019-07-16 |
| 9915886 | Image forming apparatus, electrostatic charge image developer, and electrostatic charge image developing toner | Shinichi Yaoi, Seijiro Ishimaru, Yasushige Nakamura | 2018-03-13 |
| 9874827 | Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge | Yasushige Nakamura, Shinichi Yaoi, Seijiro Ishimaru | 2018-01-23 |
| 9726997 | Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, and image forming apparatus | Narumasa SATO, Eisuke Iwazaki, Tomoaki Tanaka, Kotaro YOSHIHARA, Noriyuki Mizutani | 2017-08-08 |
| 9715185 | Electrostatic-image developing toner, electrostatic-image developer, and toner cartridge | Yuka Kawamoto, Kotaro YOSHIHARA, Daisuke Ishizuka, Narumasa SATO, Erina SAITO | 2017-07-25 |
| 9575428 | Electrostatic-image developing toner, electrostatic image developer, and toner cartridge | Narumasa SATO, Kotaro YOSHIHARA, Daisuke Ishizuka, Erina SAITO, Yuka Kawamoto +1 more | 2017-02-21 |
| 9529292 | Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge | Tomoaki Tanaka, Kotaro YOSHIHARA, Eisuke Iwazaki, Narumasa SATO, Noriyuki Mizutani | 2016-12-27 |
| 9477166 | Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge | Eisuke Iwazaki, Tomoaki Tanaka, Narumasa SATO, Kotaro YOSHIHARA, Noriyuki Mizutani | 2016-10-25 |
| 9470994 | Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge | Kotaro YOSHIHARA, Noriyuki Mizutani, Tomoaki Tanaka, Eisuke Iwazaki, Narumasa SATO +1 more | 2016-10-18 |
| 9304419 | Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, and process cartridge | Narumasa SATO, Kotaro YOSHIHARA, Eisuke Iwazaki, Tomoaki Tanaka, Noriyuki Mizutani | 2016-04-05 |
| 9304423 | Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, and process cartridge | Eisuke Iwazaki, Narumasa SATO, Kotaro YOSHIHARA, Noriyuki Mizutani, Tomoaki Tanaka | 2016-04-05 |
| 8728693 | Toner for developing electrostatic image, method of producing toner, cartridge, image forming method, and image forming apparatus | Hirokazu Hamano, Tetsuya Taguchi, Hiroshi Kamada, Masahiro Takagi | 2014-05-20 |
| 8652726 | Toner for developing electrostatic image, method of producing toner, cartridge, image forming method, and image forming apparatus | Hirokazu Hamano, Tetsuya Taguchi, Hiroshi Kamada, Masahiro Takagi | 2014-02-18 |