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:
Oct. 15, 2019
Filed:
Apr. 15, 2019
Sumitomo Riko Company Limited, Aichi, JP;
Sumitomo Riko Company Limited, Aichi, JP;
Abstract
The disclosure provides a charging roll for excellent image quality electrophotographic equipment. This charging roll for electrophotographic equipment is provided with a shaft body, an elastic body layer formed on the outer periphery of the shaft body, and a surface layer formed on the outer periphery of the elastic body layer, wherein the surface layer contains a modifier having polyamide and a hydroxyl group, and has a Bénard cell with a height of 0.1 to 1.0 μm on the surface thereof. A fluorine-based modifier having a hydroxyl group, a silicone-based modifier having a hydroxyl group, and an acrylic modifier having a hydroxyl group can be cited as examples of the modifier having the hydroxyl group.