Issued Patents 2011
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8081897 | Seal member, developing device, process cartridge, and image forming apparatus | Tomohiro Kubota, Tomofumi Yoshida, Hirobumi Ooyoshi, Yoshihiro Kawakami, Yoshiyuki Shimizu | 2011-12-20 |
| 8068770 | Toner cartridge, image forming apparatus, method of recycling toner cartridge | Takeroh Kurenuma, Fumio Ogata, Seiji Terazawa, Masayuki Yamane, Kiyonori Tsuda +4 more | 2011-11-29 |
| 8019254 | Toner conveying device, process cartridge, and image forming apparatus | Koji Kato, Hirobumi Ooyoshi, Tomofumi Yoshida, Yoshihiro Kawakami, Yoshiyuki Shimizu +1 more | 2011-09-13 |
| 7979013 | Developing device of image forming apparatus | Tomofumi Yoshida, Hirobumi Ooyoshi, Yoshihiro Kawakami, Yoshiyuki Shimizu, Tomohiro Kubota | 2011-07-12 |
| 7965957 | Developing device and image forming apparatus that uses this developing device | Tomohiro Kubota, Yoshihiro Kawakami, Yoshiyuki Shimizu, Hirobumi Ooyoshi, Tomofumi Yoshida +1 more | 2011-06-21 |
| 7965958 | Developing device, process cartridge and image forming apparatus | Yoshihiro Kawakami, Yoshiyuki Shimizu, Tomohiro Kubota, Hirobumi Ooyoshi, Tomofumi Yoshida +1 more | 2011-06-21 |
| 7962069 | Toner container, image forming apparatus, method of recycling toner container | Takeroh Kurenuma, Fumio Ogata, Seiji Terazawa, Masayuki Yamane, Kiyonori Tsuda +4 more | 2011-06-14 |
| 7945203 | Waste-toner collecting device, process cartridge, and image forming apparatus | Yoshiyuki Shimizu, 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 | Yoshiyuki Shimizu | 2011-05-10 |
| 7917077 | Waste-toner housing device, and image forming apparatus | Yoshiyuki Shimizu, 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 | Yoshiyuki Shimizu, 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, Yoshiyuki Shimizu +1 more | 2011-01-18 |