Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2006-06-13
2006-06-13
Schuberg, Darren (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
Reexamination Certificate
active
07061162
ABSTRACT:
A laminated piezoelectric element (1) having a ceramic laminate (10) formed by alternatively laminating a plurality of piezoelectric layers (11) and a plurality of internal electrode layer (21). A side surface (101) provided with the first side-surface electrode (31) is further provided with first recessed groove portions (41) which are the recessed grooves exposing the ends of the second internal electrodes (22) in the bottom portions (410) thereof, and a side surface (102) provided with the second side-surface electrode (32) is further provided with second recessed groove portions (42) which are the recessed grooves exposing the ends of the first internal electrodes (21) in the bottom portions. The first groove portions (41) and the second groove portions (42) are filled with an insulating filler material (5) having electrically insulating property so as to cover the ends of the second internal electrodes (22) and the ends of the first internal electrodes (21). The insulating filler material (5) comprises an insulating resin (50) having electrically insulating property and inorganic particles (51) of an inorganic material contained in the insulating resin (50).
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Fujii Akira
Okamoto Shinichi
Sato Kazuhide
Addison Karen Beth
Denso Corporation
Nixon & Vanderhye P.C.
Schuberg Darren
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