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:
Oct. 27, 2009
Filed:
Oct. 02, 2006
Yook-kong Yong, Princeton, NJ (US);
Mihir S Patel, Highland Park, NJ (US);
Masako Tanaka, Okaya, JP;
Yook-Kong Yong, Princeton, NJ (US);
Mihir S Patel, Highland Park, NJ (US);
Masako Tanaka, Okaya, JP;
Seiko Epson Corporation, Tokyo, JP;
Rutgers, State University of New Jersey, New Brunswick, NJ (US);
Abstract
A quartz crystal resonator includes a quartz crystal resonator element having a main surface including an X axis (electrical axis) and a Z' axis of an inclination rotated at an angle (y) equal to or greater than 36.4 degrees and equal to or smaller than, 40.5 degrees from a Z axis (optical axis) around the X axis, a main vibrating portion vibrating at a predetermined resonance frequency (f) and a supporting portion integrally formed with the main vibrating portion in such a manner as to be formed peripherally to surround the main vibrating portion, and two covers having a thermal expansion coefficient equal to or greater than 6×10per degrees centigrade and equal to or smaller than 10×10per degrees centigrade and bonded to the supporting portion so as to sandwich the quartz crystal resonator element therebetween.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile