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:
Jan. 10, 2012
Filed:
May. 12, 2010
Kenichi Sugawara, Saitama, JP;
Manabu Ito, Saitama, JP;
Kenichi Sugawara, Saitama, JP;
Manabu Ito, Saitama, JP;
Nihon Dempa Kogyo Co., Ltd., Tokyo, JP;
Abstract
A crystal oscillator for surface mounting comprising: a case main body including concave portions on both principal surfaces; a crystal element hermetically encapsulated in one concave portion; an IC chip housed in the other concave portion; mounting terminals provided on four corner portions of an opening end face of the other concave portion; and a protrusion serving as identifying marks along a direction of sides of the case main body and provided in some of the mounting terminals. The mounting terminals, to which the protrusions are provided, are provided on both corner portions on one end side of the case main body. The protrusions extend in a same direction from the mounting terminals at an inner or outer circumference side of the opening end face. The mounting terminals including the protrusions are symmetric with respect to a center line between both corner portions on the one end side.