The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 25, 2012
Filed:
Feb. 22, 2008
Yoshihiro Kawakami, Hyogo, JP;
Koji Kato, Ibaraki, JP;
Hirobumi Ooyoshi, Ibaraki, JP;
Tomofumi Yoshida, Ibaraki, JP;
Kenzo Tatsumi, Osaka, JP;
Yoshiyuki Shimizu, Osaka, JP;
Tomohiro Kubota, Osaka, JP;
Yoshihiro Kawakami, Hyogo, JP;
Koji Kato, Ibaraki, JP;
Hirobumi Ooyoshi, Ibaraki, JP;
Tomofumi Yoshida, Ibaraki, JP;
Kenzo Tatsumi, Osaka, JP;
Yoshiyuki Shimizu, Osaka, JP;
Tomohiro Kubota, Osaka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A process cartridge includes a photosensitive drum, a charging unit, a developing unit, and a cleaning unit, arranged opposite to each other along a rotating direction of the photosensitive drum in an enclosure that has an opening opposite to a developing roller of the developing unit. An extended line connecting a tangent line to an outer circumference of the developing roller and a wall of a first end of the enclosure in an axial direction of the developing roller does not intersect with a wall of a second end of the enclosure.