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US 9,755,134 B2Granted
Piezoelectric device
AssigneeTDK Corporation
InventorsRyuta Motani, Kazuo Nagata, Mitsunao Homma
Life of this patent
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Abstract
In a piezoelectric device, an identification pattern provided on a main face of a piezoelectric body is covered with an electrode, so as to inhibit the identification pattern from generating particles, while the identification pattern makes the polarity of the piezoelectric device discernible by the appearance thereof.
Claims6
A piezoelectric device comprising:
- a piezoelectric body having a pair of main faces opposing each other;
- an electrode arranged on the main face of the piezoelectric body;
- and
- an identification pattern disposed on and protruding from the main face of the piezoelectric body and covered with the electrode.
1 more element
Dependencies are inferred from the claim text.