The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 27, 2006
Filed:
Jul. 08, 2003
Nobuo Takahashi, Kasugai, JP;
Yuki Bessho, Nishikasugai-gun, JP;
Nobuyuki Kobayashi, Owariasahi, JP;
Masahiro Murasato, Chita, JP;
Nobuo Takahashi, Kasugai, JP;
Yuki Bessho, Nishikasugai-gun, JP;
Nobuyuki Kobayashi, Owariasahi, JP;
Masahiro Murasato, Chita, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
There is disclosed a piezoelectric/electrostrictive film device which has a flexural displacement and durability equal to or more than those of a related-art piezoelectric/electrostrictive film device and which has a remarkably high resonance frequency and which is superior in high-speed response. The piezoelectric/electrostrictive film device comprises: a substrate formed of ceramic; and a piezoelectric/electrostrictive operation portion including a lower electrode, piezoelectric/electrostrictive layer, and upper electrode which are successively stacked on the substrate and including a projecting end of the piezoelectric/electrostrictive layer with which an upper surface of the lower electrode and a lower surface of the upper electrode are coated, and a projecting portion of the piezoelectric/electrostrictive layer is a coupling member constituted of a hybrid material in which inorganic particles are scattered in a matrix of a polymer compound, and is coupled to the substrate.