Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8081917 | Image-bearing member protecting agent, protective layer forming device, process cartridge and image forming apparatus | Hiroshi Nakai, Masahide Yamashita, Kunio Hasegawa, Shinya Tanaka | 2011-12-20 |
| 7991342 | Protective material and image forming apparatus using the protective material | Toshiyuki Kabata, Kumiko Hatakeyama, Kunio Hasegawa, Shinya Tanaka, Masahide Yamashita +1 more | 2011-08-02 |
| 7970334 | Image-carrier protecting agent, protecting-layer forming device, image forming method, image forming apparatus, and process cartridge | Masahide Yamashita, Hiroshi Nakai, Shinya Tanaka, Naoyuki Ozaki | 2011-06-28 |
| 7941087 | Image-bearing member protecting agent, protective layer forming device, image forming method, image forming apparatus and process cartridge | Shinya Tanaka, Hiroshi Nakai, Masahide Yamashita, Kunio Hasegawa | 2011-05-10 |
| 7738819 | Image forming method and apparatus, and developing device and process cartridge therefor | Takahiro Honda, Hiroyuki Fushimi, Shuuichi Endoh, Shinya Tanaka | 2010-06-15 |
| 7720418 | Toner change and flow stabilizing developing device, process cartridge, and image forming apparatus | Shinya Tanaka, Shuuichi Endoh | 2010-05-18 |
| 7653339 | Protective agent, image forming apparatus, and process cartridge | Masahide Yamashita, Hiroshi Nakai, Shinya Tanaka | 2010-01-26 |
| 7561835 | Developing device, and image forming apparatus and process cartridge using the developing device | Shinya Tanaka | 2009-07-14 |
| 7450870 | Developing device using one-component toner for an image forming apparatus, and a process cartridge including the developing device | Osamu Endou | 2008-11-11 |