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 7579748 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 25, 2009

Filed:

Aug. 17, 2007
Applicant:

Katsumi Kuroda, Minowa, JP;

Inventor:

Katsumi Kuroda, Minowa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/08 (2006.01); H01L 41/22 (2006.01);
U.S. Cl.
CPC ...
Abstract

A piezoelectric device, includes: a package; a piezoelectric resonator element housed in the package; a lid made of metal and bonded to the package by seam welding to seal the package air-tightly; a metal film for frequency adjustment that is provided to the piezoelectric resonator element; and a window part provided to the lid and enabling a light to transmit therethrough.


Find Patent Forward Citations

Kuroda, Katsumi. (2009). Piezoelectric device and method for manufacturing thereof (U.S. Patent No. 7579748). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7579748

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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