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. 28, 2010
Filed:
Apr. 06, 2009
Shigeyoshi Murase, Sayama, JP;
Chisato Ishimaru, Sayama, JP;
Shigeyoshi Murase, Sayama, JP;
Chisato Ishimaru, Sayama, JP;
Nihon Dempa Kogyo Co., Ltd., Tokyo, JP;
Abstract
A crystal device for surface mounting, in which a metal cover is jointed to the metal ring by seam welding, satisfies relationships A/A<C/Cand B/B<D/Dwhere Ais a length of a long side of the metal ring, Ais a length of a straight portion of a long side except for curved portions, Bis a length of a short side of the metal ring, Bis a length of a straight portion of the short side except for the curved portions thereof, Cis a length of a long side of the metal cover, Cis a length of a straight portion of the long side except for the curved portions thereof, Dis a length of a short side of the metal cover, and Dis a length of a straight portion of the short side except for the curved portions thereof.