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. 16, 2013
Filed:
Sep. 13, 2011
Koichi Mihara, Osaka, JP;
Takafumi Nagai, Osaka, JP;
Koichi Mihara, Osaka, JP;
Takafumi Nagai, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka-Shi, JP;
Abstract
A developing device that is capable of securing an amount of developer that can be stored in a developer tank while suppressing the bending of a developer conveying section, as well as an image forming apparatus are provided. In a developer tank of a developing device, there is provided a first developer conveying section that includes a first rotation shaft member having a columnar shape in which grooves extending in an axial line direction are formed, and a first spiral blade that is spirally wound around the first rotation shaft member and conveys the developer by rotation around the axial line of the first rotation shaft member.