Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2009-04-22
2011-10-11
Benson, Walter (Department: 2837)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
Reexamination Certificate
active
08035282
ABSTRACT:
Provided are a piezoelectric vibrator and an electrode structure of the piezoelectric vibrator. The piezoelectric vibrator includes a piezoelectric material vibrating according to an electric signal, first and second electrode structures formed on the upper surface and the undersurface of the piezoelectric material, and including first to fourth layers sequentially stacked thereon, respectively. The first and third layers are formed of an alloy including Cr. The second and fourth layers are formed of Ag or an alloy including Ag.
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patent: 2006/0207078 (2006-09-01), Namerikawa et al.
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Korean Intellectual Property Office, Office Action issued Dec. 22, 2009.
Jeon Jong Beom
Lee Jong Pil
Park Jang Ho
Yasuda Katsushi
Addison Karen B
Benson Walter
Lowe Hauptman & Ham & Berner, LLP
Samsung Electro-Mechanics Co. Ltd.
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