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:
Sep. 01, 2026
Filed:
Jan. 27, 2025
Keiichiro Juri, Tokyo, JP;
Masahiro Ohmori, Kanagawa, JP;
Hideki Kimura, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An image forming apparatus includes an image bearer, a charging device, an irradiator, a developing device, a transfer device, a fixing device, and a cleaning device that includes a cleaning blade including an elastic cleaning blade substrate including the front end portion to clean the surface of the image bearer, the front edge ridge part, the undersurface, an edge layer, a coating layer disposed on the front end portion, the coating layer being in contact with the surface of the image bearer to clean the surface of the image bearer, and a cleaning blade supporting member, wherein the maximum penetration depth hmax of the indenter of a microhardness tester is between 4.0 μm and 10.0 μm at a position 100 μm inward from the front edge ridge part on the undersurface of the elastic cleaning blade substrate as measured according to a nanoindentation hardness test.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile