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:
Apr. 19, 2005
Filed:
Feb. 18, 2003
Yasutaka Tamai, Takaichi-gun, JP;
Yasutaka Tamai, Takaichi-gun, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A developer is carried to a developing region by a developer carrier and develops a static latent image formed on a latent image carrier. The developer to be supplied to the developer carrier is circulated in a first circulating path while being stirred. The developer also is circulated in a second circulating path. Here, at least a part of the first circulating path and at least a part of the second circulating path are common, intersect or contact each other. In a portion where both of the circulating paths are common, intersect or contact each other, a part of the developers in both of these paths are interchanged. In this manner, an image whose image density is uniform and stable can be obtained. Further, it is possible to achieve a small developing device that includes a long-life developer.