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:
May. 17, 2016
Filed:
Dec. 11, 2013
Daishinku Corporation, Kakogawa-shi, Hyogo, JP;
Yoshinobu Sakamoto, Kakogawa, JP;
Satoru Ishino, Kakogawa, JP;
Yoshinari Morimoto, Kakogawa, JP;
Taiki Goto, Kakogawa, JP;
DAISHINKU CORPORATION, Kakogawa-shi, JP;
Abstract
For a tuning-fork type crystal resonator plate, a crystal plate having a crystal orientation is used. The tuning-fork type crystal resonator plate includes: a base portion; and a pair of first and second leg portions protruding from the base portion in one direction. In the first leg portion and the second leg portion, grooves are formed so that each of the grooves is biased relative to a center of the corresponding first or second leg portion in a width direction. A lowermost point of the groove is positioned in a middle of the groove in the width direction (width direction of the first leg portion and the second leg portion) in a state viewed from an end surface of the first and second leg portions in the width direction.