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:
Sep. 01, 2026

Filed:

Nov. 14, 2024
Applicant:

Sharp Kabushiki Kaisha, Sakai City, JP;

Inventors:

Hideaki Kurimoto, Sakai City, JP;

Satoshi Kimura, Sakai City, JP;

Assignee:

SHARP KABUSHIKI KAISHA, Sakai City, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01); G03G 21/16 (2006.01); G03G 21/20 (2006.01);
U.S. Cl.
CPC ...
G03G 21/1676 (2013.01); G03G 15/0887 (2013.01); G03G 21/206 (2013.01); G03G 2221/163 (2013.01); G03G 2221/1648 (2013.01);
Abstract

A developing device includes: a developing device body including a vent opening that releases internal pressure, and a filter member including a filter that closes the vent opening, the filter member detachably attached to the developing device body; wherein the filter member is subjected to an attaching operation and a detaching operation, relative to the developing device body, in a state where an inner surface of the filter is in a predetermined first posture with the inner surface facing upward; and wherein the filter member is held on the developing device body in a state where the inner surface of the filter is in a predetermined second posture different from the first posture.


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