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:
Jul. 30, 2007
Matsutaro Naito, Minowa-nachi, JP;
Yoshiyuki Aoshima, Minowa-machi, JP;
Kenji Komine, Chigasakishi, JP;
Matsutaro Naito, Minowa-nachi, JP;
Yoshiyuki Aoshima, Minowa-machi, JP;
Kenji Komine, Chigasakishi, JP;
Epson Toyocom Corporation, Tokyo, JP;
Abstract
An AT cut quartz crystal resonator element includes a quartz crystal element piece having an exciting part formed from an AT cut quartz crystal plate in a rectangular shape having an X-axis direction of a quartz crystal set to a long side, and an exciting electrode formed on each of front and back main surfaces of the exciting part, in which each side surface in the longitudinal direction of the exciting part is composed of two faces, an m-face of a quartz crystal and a crystal face other than the m-face.