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:
Mar. 31, 2026
Filed:
Oct. 21, 2024
Yasuhide Ohkubo, Kanagawa, JP;
Yasuhide Ohkubo, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A developing device includes: a toner bearer; a layer-thickness regulating member including a regulating portion and a projecting portion; a seal holding surface; and a seal. The regulating portion presses against a surface of the toner bearer to regulate a layer thickness of toner on the toner bearer. The projecting portion is at a back side of the regulating portion. The seal holding surface is opposite an end surface of the toner bearer. The seal is between the end surface of the toner bearer and the seal holding surface. A part of the projecting portion opposite the end surface is interposed between the seal and the end surface. The seal holding surface has a convex portion at a position opposite at least one of an upstream adjacent portion or a downstream adjacent portion adjacent to the part of the projecting portion in a surface movement direction of the toner bearer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile