Issued Patents All Time
Showing 1–25 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9612547 | Developing device, process cartridge, and image forming apparatus | — | 2017-04-04 |
| D750702 | Powder container | Masayuki Yamane, Hiroshi Mizusawa | 2016-03-01 |
| 9268300 | Process unit including a rotatable shaft along a driving force vector and image forming apparatus including the same | Yoshiyuki Shimizu, Manabu Hamada | 2016-02-23 |
| 9110396 | Mechanism for electrifying, method of electrifying, and conductive member | Minoru Toyoda | 2015-08-18 |
| 8913926 | Developer container, developing device, process cartridge, image forming device, and developer refilling method | Kenji Nakamura, Tomofumi Yoshida, Manabu Hamada | 2014-12-16 |
| 8861991 | Developer amount detector, and developer container, development device, and image forming apparatus incorporating same | Tomohiro Kubota, Naoki Nakatake, Tomofumi Yoshida, Yoshiyuki Shimizu, Manabu Hamada +1 more | 2014-10-14 |
| 8824951 | Toner conveyor, process cartridge, and image forming apparatus | Yuusuke Furuichi | 2014-09-02 |
| 8768203 | Image forming apparatus capable of effectively utilizing interior space | Manabu Hamada, Tomofumi Yoshida, Yoshiyuki Shimizu, Takeru Muramatsu, Tomohiro Kubota +6 more | 2014-07-01 |
| 8712277 | Rotating-body electrification mechanism, image carrier unit, process cartridge, image forming apparatus, and method for electrifying image carrier unit | — | 2014-04-29 |
| 8682199 | Mechanism for electrifying, method of electrifying, and conductive member | Minoru Toyoda | 2014-03-25 |
| 8526849 | Process cartridge and image forming apparatus | Tomofumi Yoshida, Yoshiyuki Shimizu, Shinichi Arasawa | 2013-09-03 |
| 8442414 | Seal member, developing device, process cartridge, and image forming apparatus | Tomohiro Kubota, Kenzo Tatsumi, Tomofumi Yoshida, Yoshihiro Kawakami, Yoshiyuki Shimizu | 2013-05-14 |
| 8326203 | Toner conveyance device, process unit, and image forming apparatus | — | 2012-12-04 |
| 8320792 | Cleaning device, process cartridge, and image forming apparatus | Yoshihiro Kawakami, Osamu Saito | 2012-11-27 |
| 8275285 | Process cartridge and image forming apparatus | Yoshihiro Kawakami, Koji Kato, Tomofumi Yoshida, Kenzo Tatsumi, Yoshiyuki Shimizu +1 more | 2012-09-25 |
| 8260186 | Toner cartridge with refillable fresh and residual toner chambers, process cartridge, and method of making toner cartridge reusable | Tomohiro Kubota, Tomofumi Yoshida, Kenzo Tatsumi, Yoshiyuki Shimizu, Yoshihiro Kawakami +2 more | 2012-09-04 |
| 8208832 | Toner-collecting device and image forming apparatus | Tomofumi Yoshida, Kenzo Tatsumi, Yoshihiro Kawakami, Yoshiyuki Shimizu, Tomohiro Kubota +1 more | 2012-06-26 |
| 8160476 | Latent image carrier having pairs of first and second positioning protrusions and image forming apparatus | Yoshiyuki Shimizu, Kenzo Tatsumi, Yoshihiro Kawakami, Tomohiro Kubota, Koji Kato +1 more | 2012-04-17 |
| 8135313 | Powder transport screw, and development device, process unit and image-forming apparatus comprising this powder transport screw | Tomofumi Yoshida, Kenzo Tatsumi, Tomohiro Kubota, Yoshiyuki Shimizu, Yoshihiro Kawakami +2 more | 2012-03-13 |
| 8135329 | Toner conveyer device, process cartridge, and image forming apparatus | Yoshiyuki Shimizu, Tomofumi Yoshida, Koji Kato, Kenzo Tatsumi, Yoshihiro Kawakami +1 more | 2012-03-13 |
| 8103195 | Toner agitating unit, toner hopper, process cartridge, and image forming apparatus | Tomofumi Yoshida, Kenzo Tatsumi, Yoshihiro Kawakami, Yoshiyuki Shimizu, Tomohiro Kubota +1 more | 2012-01-24 |
| 8095035 | Developing device, process unit, and image forming apparatus, with supporting members, grooves, and supported developing roller | Osamu Saito, Yoshihiro Kawakami, Kenzo Tatsumi, Tomohiro Kubota, Yoshiyuki Shimizu +1 more | 2012-01-10 |
| 8081897 | Seal member, developing device, process cartridge, and image forming apparatus | Tomohiro Kubota, Kenzo Tatsumi, Tomofumi Yoshida, Yoshihiro Kawakami, Yoshiyuki Shimizu | 2011-12-20 |
| 8019259 | Development device, process unit, and image forming apparatus | Yoshiyuki Shimizu, Osamu Saito | 2011-09-13 |
| 8019254 | Toner conveying device, process cartridge, and image forming apparatus | Kenzo Tatsumi, Koji Kato, Tomofumi Yoshida, Yoshihiro Kawakami, Yoshiyuki Shimizu +1 more | 2011-09-13 |