Issued Patents 2011
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8081897 | Seal member, developing device, process cartridge, and image forming apparatus | Tomohiro Kubota, Kenzo Tatsumi, Tomofumi Yoshida, Hirobumi Ooyoshi, Yoshihiro Kawakami | 2011-12-20 |
| 8052664 | Packaged absorbent article | Akane Matsuo, Sachiko Ninomiya, Tsunetoshi Miura | 2011-11-08 |
| 8019259 | Development device, process unit, and image forming apparatus | Hirobumi Ooyoshi, Osamu Saito | 2011-09-13 |
| 8019254 | Toner conveying device, process cartridge, and image forming apparatus | Kenzo Tatsumi, Koji Kato, Hirobumi Ooyoshi, Tomofumi Yoshida, Yoshihiro Kawakami +1 more | 2011-09-13 |
| 7995949 | Powder conveyance device, process unit, and image forming device | — | 2011-08-09 |
| 7979013 | Developing device of image forming apparatus | Tomofumi Yoshida, Hirobumi Ooyoshi, Kenzo Tatsumi, Yoshihiro Kawakami, Tomohiro Kubota | 2011-07-12 |
| 7965958 | Developing device, process cartridge and image forming apparatus | Kenzo Tatsumi, Yoshihiro Kawakami, Tomohiro Kubota, Hirobumi Ooyoshi, Tomofumi Yoshida +1 more | 2011-06-21 |
| 7965957 | Developing device and image forming apparatus that uses this developing device | Tomohiro Kubota, Kenzo Tatsumi, Yoshihiro Kawakami, Hirobumi Ooyoshi, Tomofumi Yoshida +1 more | 2011-06-21 |
| 7945203 | Waste-toner collecting device, process cartridge, and image forming apparatus | Kenzo Tatsumi, Hirobumi Ooyoshi, Yoshihiro Kawakami, Tomofumi Yoshida, Tomohiro Kubota +2 more | 2011-05-17 |
| 7940419 | Image forming method and apparatus for effectively positioning an image forming member | Kenzo Tatsumi | 2011-05-10 |
| 7917077 | Waste-toner housing device, and image forming apparatus | Kenzo Tatsumi, Yoshihiro Kawakami, Tomohiro Kubota, Koji Kato, Hirobumi Ooyoshi +1 more | 2011-03-29 |
| 7890044 | Powder conveyance device, toner conveyance device, process cartridge and image forming apparatus | Kenzo Tatsumi, Yoshihiro Kawakami, Tomohiro Kubota, Koji Kato, Hirobumi Ooyoshi +1 more | 2011-02-15 |
| 7873302 | Cleaning device and image forming apparatus | Yoshihiro Kawakami, Koji Kato, Hirobumi Ooyoshi, Tomofumi Yoshida, Kenzo Tatsumi +1 more | 2011-01-18 |