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:
Dec. 20, 2005
Filed:
Sep. 24, 2003
Kojiro Yasui, Shizuoka-ken, JP;
Hironobu Isobe, Numazu, JP;
Hiroshi Sato, Shizuoka-ken, JP;
Seiichi Shinohara, Mishima, JP;
Yasufumi Yoshino, Numazu, JP;
Syuhei Kawasaki, Susono, JP;
Kojiro Yasui, Shizuoka-ken, JP;
Hironobu Isobe, Numazu, JP;
Hiroshi Sato, Shizuoka-ken, JP;
Seiichi Shinohara, Mishima, JP;
Yasufumi Yoshino, Numazu, JP;
Syuhei Kawasaki, Susono, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A developing cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes a developing roller, for developing an electrostatic latent image formed on an electrophotographic photosensitive member, having an elastic roller portion and a shaft portion supporting the elastic roller portion, a developer regulating member; a protecting member including a contact portion provided for contact with the elastic roller portion when the protecting member is demountably mounted between the developing roller and the developer regulating member; and a supporting portion for supporting the contact portion and provided for contact with the elastic roller portion when the protecting member is demountably mounted between the developing roller and the developer regulating member. The contact portion has a hardness which is not less than a predetermined value and not more than a hardness of the elastic roller portion.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile