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. 21, 2012
Filed:
Dec. 22, 2009
Hiroki Iwai, Saitama, JP;
Hiroki Iwai, Saitama, JP;
Nihon Dempa Kogyo Co., Ltd., Tokyo, JP;
Abstract
Piezoelectric frames are disclosed that include a tuning-fork type piezoelectric vibrating portion having a pair of vibrating arms extending from a base portion in a first direction (Y-direction). The vibrating arms have a first width W. A respective excitation electrode is formed on each vibrating arm. Supporting arms extend from the base portion in the first direction, outboard of respective vibrating arms. The supporting arms have a second width W. A respective connecting arm extends from each supporting arm in a second direction that crosses the first direction. An outer frame connects to the connecting arms, has a side extending in the first direction with a third width W, and has another side extending in the second direction with a fourth width W. The second width Wis 1.4 times smaller than the first width W