Metal working – Piezoelectric device making
Reexamination Certificate
2005-03-22
2005-03-22
Kim, Paul D (Department: 3729)
Metal working
Piezoelectric device making
C417S560000, C417S302000, C083S025000, C083S042000, C083S103000, C216S022000, C216S039000, C216S041000, C310S334000, C310S335000, C310S336000, C310S337000, C310S348000, C310S358000
Reexamination Certificate
active
06868594
ABSTRACT:
A method for producing transducers having a 1-3 composite structure. The transducer element includes a plurality of thin piezoceramic wafers which are electroded on opposing major surfaces. The spaced wafers are separated by a passive polymer layer in a composite structure and the electrodes on the opposing major surfaces are connected to different ones of top and bottom electrode surfaces.
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patent: 60147622 (1985-08-01), None
“The role of piezocomposites in ultrasonic transducers”; Smith, W.A.; Ultrasonics Symposium, 1989. Proceedings., IEEE 1989 Oct. 3-6, 1989; pp.: 775-766 vol. 2*
Richard L. Goldberg et al.; “Performance of Multi-Layer 2-D Transducer Arrays;” 1993 Ultrasonic Symposium, IEEE (1993); pp. 1103-1106.
Wallace Arden Smith; “Composite Piezoelectric Materials for Medical Ultrasonic Imaging Transducers—A Review;” IEEE; 1996; pp. 249-256.
Wallace Arden Smith; “New Opportunities in Ultrasonic Transducers Emerging from Innovations in Piezoelectric Materials;” SPIE International Ultrasonics Symposium; Jul. 21-22, 1992.
Kim Paul D
Koninklijke Philips Electronics , N.V.
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