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.

Date of Patent:
Jan. 11, 2011

Filed:

Apr. 21, 2008
Applicant:

Hideo Ichikawa, Ebina, JP;

Inventor:

Hideo Ichikawa, Ebina, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A developer container includes: a container chamber that has a container space for containing a developer; and an conveyance member having a rotation shaft and a spiral member and which rotates inside the container space about the rotation shaft, the spiral member being spirally extended to hold a first angle to an axial direction of the rotation shaft, and the spiral member being provided with a plurality of low-angle portions, wherein at least one of the low-angle portions is provided in each unit segment which is equivalent to one turn of the spiral member about the rotation shaft, and an amount of a developer contained in the container space is enough to constantly bury any of the plurality of low-angle portions in the developer under a condition that the axial direction of the rotation shaft is held to be horizontal inside the container space.


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