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:
Nov. 18, 2008
Filed:
Feb. 09, 2006
Kaoru Matsuki, Akishima, JP;
Shinji Kaneko, Kokubunji, JP;
Tsuyoshi Togawa, Hachioji, JP;
Sumio Kawai, Hachioji, JP;
Kaoru Matsuki, Akishima, JP;
Shinji Kaneko, Kokubunji, JP;
Tsuyoshi Togawa, Hachioji, JP;
Sumio Kawai, Hachioji, JP;
Olympus Corporation, Tokyo, JP;
Abstract
A shutter device comprising a fixed member which has a plurality of electrodes arranged on a surface, a light-transmitting region which is provided in the fixed member, a light-shielding member which is able to move between two positions where the light-transmitting region is closed and opened, respectively, and which have a plurality of electret parts, and a drive circuit which periodically applies a voltage to the electrodes provided on the fixed member, thereby to generate an electrostatic force acting on the electret parts of the light-shielding member and to drive the light-shielding member.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile