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:
Jul. 28, 2015
Filed:
Nov. 28, 2012
Canon Kabushiki Kaisha, Tokyo, JP;
Masaaki Matsushita, Yokohama, JP;
Tomonori Matsunaga, Suntou-gun, JP;
Shunsuke Mizukoshi, Yokohama, JP;
Kohei Matsuda, Fujisawa, JP;
Jun Miura, Kawasaki, JP;
Takayuki Kanazawa, Yokohama, JP;
Takashi Mukai, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A developing device includes: a flexible container, provide with an opening, for accommodating the developer; a frame for accommodating the container; an urging member, rotatably provided inside the frame, for urging the container by rotation thereof to deform the container; and a developer carrying member for carrying the developer on its surface to feed the developer. A distance X from a rotation center of the urging member to the surface of the developer carrying member and a length T from the rotation center of the urging member to a free end thereof for urging the container satisfy a relationship of X<T. A shielding member for preventing contact of the urging member with the developer carrying member is provided between the rotation center of the urging member and the surface of the developer carrying member or in a neighborhood thereof.