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:
Feb. 08, 2011
Filed:
Apr. 25, 2007
Shigeru Nishio, Yamatokoriyama, JP;
Tadashi Iwamatsu, Nara, JP;
Yuhsuke Ebata, Suzuka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A corona discharge device () comprises a discharge electrode () for causing electric discharge, a discharge product removing member () provided around the discharge electrode (), and containing a material capable of removing a discharge product, and a shield plate () interposed between the discharge electrode () and the discharge product removing member (), having a through-hole () open toward the discharge electrode (), and having a surface opposed to the discharge electrode () and at least the surface being made of a metallic material. With this, a corona discharge device, a photoreceptor charger, and a method for making a discharge product removing member which realize high trapping efficiency for discharge products and a long life of a discharge product removing filter are provided.