Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6835521 | Process for producing toner particles, and toner | Yoshinori Tsuji, Akira Hashimoto, Hidekazu Fumita | 2004-12-28 |
| 6346356 | Toner, toner production process, and image-forming method | Manabu Ohno, Ryoichi Fujita, Shinya Yachi, Yasushi Katsuta, Kenichi Nakayama | 2002-02-12 |
| 6285848 | Electrophotographic apparatus, image forming method, and process cartridge for developing an image with toner containing an external additive | Shuichi Aita, Kenji Okado, Ryoichi Fujita, Fumihiro Arahira, Kiyoshi Mizoe +1 more | 2001-09-04 |
| 6054244 | Process for producing toner | Kazunori Kato, Satoshi Yasuda | 2000-04-25 |
| 6030737 | Non-magnetic toner for developing electrostatic image, process for producing non-magnetic toner particles, and image forming method | Kenji Okado | 2000-02-29 |
| 6015647 | Toner for developing electrostatic image and image forming method | Manabu Ohno | 2000-01-18 |
| 5994019 | Image forming method | Kenji Okado, Ryoichi Fujita, Kazumi Yoshizaki | 1999-11-30 |
| 5989770 | Process for producing toner for developing electrostatic latent images | Satoshi Yasuda, Kazunori Kato | 1999-11-23 |
| 5885742 | Carrier for electrophotography, two-component type developer, and image forming method | Kenji Okado, Ryoichi Fujita, Tsuyoshi Takiguchi | 1999-03-23 |
| 5856055 | Toner for developing electrostatic images and process for production thereof | Kazumi Yoshizaki | 1999-01-05 |
| 5774771 | Image forming method and apparatus using a particular toner | Tsutomu Kukimoto, Motoo Urawa, Kenji Okado, Keita Nozawa, Satoshi Yoshida +1 more | 1998-06-30 |
| 5733702 | Image forming method employing toner with external additive | Kenji Okado, Ryoichi Fujita, Tsuyoshi Takiguchi, Yasuhiro Ichikawa | 1998-03-31 |
| 5698354 | Image-forming method and image-forming apparatus | Tatsuya Nakamura | 1997-12-16 |
| 5670288 | Carrier for electrophotography, two-component type developer, and image forming method | Kenji Okado, Ryoichi Fujita, Makoto Kanbayashi, Tsuyoshi Takiguchi, Yasuhiro Ichikawa +1 more | 1997-09-23 |
| 5637432 | Toner for developing electrostatic image comprising titanium oxide particles | Kenji Okado, Ryoichi Fujita, Tsuyoshi Takiguchi, Yasuhiro Ichikawa | 1997-06-10 |
| 5512402 | Carrier for electrophotography, two-component type developer, and image forming method | Kenji Okado, Ryoichi Fujita, Makoto Kanbayashi, Tsuyoshi Takiguchi, Yasuhiro Ichikawa +1 more | 1996-04-30 |
| 5102761 | Color toner for electrophotography containing a phenolic compound | Ichiro Ohsaki, Takaaki Kohtaki, Yuko Sato, Hiroyuki Kobayashi | 1992-04-07 |