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:
Jun. 04, 2013
Filed:
Jan. 11, 2011
Applicants:
Tomoyuki Sakamaki, Toride, JP;
Yuji Bessho, Abiko, JP;
Masanori Akita, Toride, JP;
Toshiyuki Yamada, Kashiwa, JP;
Atsushi Matsumoto, Toride, JP;
Inventors:
Tomoyuki Sakamaki, Toride, JP;
Yuji Bessho, Abiko, JP;
Masanori Akita, Toride, JP;
Toshiyuki Yamada, Kashiwa, JP;
Atsushi Matsumoto, Toride, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A repulsive magnetic field is formed in a section immediately upstream of a regulating blade, so that generation of a developing-agent stationary layer is suppressed or eliminated. Accordingly, a developing apparatus capable of stably maintaining the layer thickness of developing agent conveyed to a developing area for a long time is provided.