Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7639957 | Image forming apparatus including controller to detect condition of image developer | Shinji Kato, Koji Suzuki, Yasushi Koichi, Shigekazu Enoki, Kumiko Hatakeyama | 2009-12-29 |
| 7483648 | Process cartridge and image forming apparatus using the same | Hiroshi Hosokawa, Atushi Sampe, Hiroyuki Nagashima, Nobuo Kuwabara, Yoshiyuki Kimura | 2009-01-27 |
| 7460810 | Image forming apparatus having a cleaning roller for a charging roller of the apparatus | Atsushi Sampe, Yoshiyuki Kimura, Hiroyuki Nagashima, Hiroshi Hosokawa, Nobuo Kuwabara | 2008-12-02 |
| 7433615 | Method of and image forming apparatus for controlling a light exposure condition | Nobuo Kuwahara, Atsushi Sampe, Yoshiyuki Kimura, Hiroyuki Nagashima, Hiroshi Hosokawa | 2008-10-07 |
| 7343132 | Image forming apparatus and process cartridge including sealable lubricating device | Yoshiyuki Kimura, Atsushi Sampe, Hiroyuki Nagashima, Nobuo Kuwabara, Hiroshi Hosokawa | 2008-03-11 |
| 7305203 | Image forming apparatus including a process cartridge formed with a hole | Atsushi Sampe, Hiroyuki Nagashima, Yoshiyuki Kimura, Nobuo Kuwabara, Hiroshi Hosokawa +1 more | 2007-12-04 |
| 7136610 | Image forming apparatus using installable process cartridge, method of positioning process cartridge, and process cartridge itself | Yuji Arai, Atsushi Sampe, Kiyonori Tsuda, Takeo Suda, Satoshi Hatori +11 more | 2006-11-14 |
| 7024133 | Image forming apparatus using a user installable process cartridge, a method of arranging the process cartridge, and the process cartridge itself | Hiroyuki Nagashima, Atsushi Sampe, Yoshiyuki Kimura, Nobuo Kuwabara, Hiroshi Hosokawa +7 more | 2006-04-04 |