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. 06, 2012
Filed:
Jan. 07, 2009
Applicant:
Masanobu Deguchi, Kashiba, JP;
Inventor:
Masanobu Deguchi, Kashiba, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a plate-like grid electrode of a charging device that controls the charged potential of a surface of a photoreceptor drum, a vibrating portion that vibrates itself to make the plate-like grid electrode vibrate is formed. The vibrating portion is a piezoelectric bimorph element in which two piezoelectric elements are bonded to each other and a base portion is provided between the two piezoelectric elements. When a voltage is applied to the piezoelectric bimorph element, a free end is curved to vibrate the piezoelectric bimorph element.