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:
Dec. 09, 2014
Filed:
Aug. 29, 2012
Shuichi Mizusawa, Saitama, JP;
Takehiro Takahashi, Saitama, JP;
Shuichi Mizusawa, Saitama, JP;
Takehiro Takahashi, Saitama, JP;
Nihon Dempa Kogyo Co., Ltd., Tokyo, JP;
Abstract
A mesa-structure crystal element includes a circumferential portion having a thin thickness, a first convex portion formed on a plane in a center side from the circumferential portion and having a first height from the circumferential portion in a first principal face and a first planar shape, and a second convex portion formed in a center side from the circumferential portion and having a second height from the circumferential portion in a second principal face opposite to the first principal face and a second planar shape, wherein at least one of an area and a planar shape is different between the first planar shape of the first convex portion and the second planar shape of the second convex portion, or the first height of the first convex portion is different from the second height of the second convex portion.