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:
May. 03, 2011
Filed:
Jun. 19, 2007
Liquid developing electrophotographic device roller and liquid developing electrophotographic device
Harushi Nagami, Kobe, JP;
Hiroshi Sanda, Kobe, JP;
Takayuki Nagase, Kobe, JP;
Sadaharu Nakamura, Kobe, JP;
Harushi Nagami, Kobe, JP;
Hiroshi Sanda, Kobe, JP;
Takayuki Nagase, Kobe, JP;
Sadaharu Nakamura, Kobe, JP;
Bando Chemical Industries, Ltd., Hyogo, JP;
Abstract
An object of the present invention is to provide a liquid developing electrographic device roller suppressed in volumetric variation caused by a carrier. As a means for solving the problems, the present invention provides a liquid developing electrophotographic device roller including a shaft and an elastic material layer provided around the outer peripheral side of the shaft, wherein the elastic material layer is formed by using a polyurethane obtained by reacting a polyester polyol with a difunctional isocyanate.