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. 01, 2011
Filed:
Jun. 18, 2009
Madoka Nishiyama, Yokohama, JP;
Madoka Nishiyama, Yokohama, JP;
Nikon Corporation, Tokyo, JP;
Abstract
A variable capacitor including a first electrode part, which is provided at a fixed part that includes a substrate, and a movable part, which has a second electrode part forming the capacity of said variable capacitor between itself and the first electrode part, and the movable part is displaced in response to a first drive signal to selectively go into an opposing status, in which the second electrode part opposes the first electrode part, and a non-opposing status, in which the second electrode part essentially does not oppose the first electrode part. This variable capacitor is able to obtain at least a two-value capacity in which the mutual ratio is large without specially requiring another capacitor or a switch, and it is able to obtain the desired capacity variation range by combining a plurality of capacitors.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile