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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.:

US 9088263 B1

PDFFull Text
Expired
Date of Patent:
Jul. 21, 2015

Filed:

Jun. 16, 2011

Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic apparatus

Applicant:

Kunihito Yamanaka, Kamiina, JP;

Inventor:

Kunihito Yamanaka, Kamiina, JP;

Assignee:

Seiko Epson Corporation, , JP;

Attorney:

Harness, Dickey & Pierce, P.L.C.

Primary Examiner:

Barbara Summons

Int. Cl.
CPC ...
H03H 9/25 (2006.01); H03H 9/125 (2006.01); H03B 5/32 (2006.01); H03H 9/02 (2006.01); H03H 9/00 (2006.01);
U.S. Cl.
CPC ...
H03H 9/02551 (2013.01); H03B 5/326 (2013.01); H03H 9/02653 (2013.01); H03H 9/02661 (2013.01); H03H 9/02669 (2013.01); H03H 9/02677 (2013.01); H03H 2009/0019 (2013.01);
Abstract

A surface acoustic wave (SAW) resonator and a SAW oscillator and an electronic apparatus including the resonator are to be provided. A SAW resonator includes: an IDT exciting a SAW using a quartz crystal substrate of Euler angles (−1.5°≦φ≦1.5°, 117°≦θ≦142°, 42.79°≦|ψ|≦49.57°); one pair of reflection units arranged so as allow the IDT to be disposed therebetween; and grooves acquired by depressing the quartz crystal substrate located between electrode fingers. When a wavelength of the SAW is λ, and a depth of the grooves is G, '0.01λ≦G' is satisfied.

Find Patent Forward Citations

Yamanaka, Kunihito. (2015). Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic apparatus (U.S. Patent No. 9088263). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9088263

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