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:
Jan. 03, 2012
Filed:
Oct. 26, 2007
Yohko Naruse, Ichinomiya, JP;
Yoshinori Shishida, Yoro-gun, JP;
Naoteru Matsubara, Ichinomiya, JP;
Yoshiki Murayama, Hirakata, JP;
Yohko Naruse, Ichinomiya, JP;
Yoshinori Shishida, Yoro-gun, JP;
Naoteru Matsubara, Ichinomiya, JP;
Yoshiki Murayama, Hirakata, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
An electrostatic acting device in which leakage of charge from an electret film is suppressed. The electrostatic acting device comprises a movable electrode section () having a movable electrode () and a fixed electrode section () having an electret film () opposed to the movable electrode section () at a predetermined distance and capable of storing charge and a conductive layer () formed on a predetermined region on the upper surface of the electret film (). The conductive layer () is formed on the surface of a region of the electret film (), and the region is projected.