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:
Dec. 06, 2022
Filed:
Aug. 13, 2021
Fujifilm Business Innovation Corp., Tokyo, JP;
Yuta Hoshino, Ebina, JP;
Kiyohito Horii, Ebina, JP;
Taiyou Uehara, Ebina, JP;
Takashi Ochi, Ebina, JP;
Shota Igawa, Ebina, JP;
FUJIFILM Business Innovation Corp., Tokyo, JP;
Abstract
A developing device includes: a housing in which a developer is contained; a cover member configured to cover an upper opening of the housing; a developer holder that is supported by the housing and holds the developer on an outer surface and rotates; and a regulating member that faces the developer holder and is configured to regulate an amount of the developer on the outer surface. The device also includes a first exit path inclined toward an inside of the housing which is configured to exit air from the inside of the housing to an outside of the cover member. A second exit path connects the first exit path and a filter member provided on the cover member, in which the filter member prevents passage of the developer and allows for passage of air.