US Patent 7535155 Piezoelectric device and piezoelectric switch provided with the same

Patent 7535155 was granted and assigned to Taiheiyo Cement on May, 2009 by the United States Patent and Trademark Office.

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Patent

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Current Assignee

Taiheiyo Cement

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7535155

Date of Patent

May 19, 2009

Patent Application Number

11660666

Date Filed

July 11, 2005

Patent Primary Examiner

‌

Thomas M. Dougherty

Patent abstract

There are provided a piezoelectric device, in which piezoelectric element surfaces are prevented from cracking and warping by reducing tensile stress generated within the piezoelectric element by an external force, and a piezoelectric switch utilizing the same.

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