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:
Sep. 11, 2007
Filed:
Jul. 30, 2003
Takao Ohnishi, Nishikasugai-Gun, JP;
Masahiro Murasato, Chita, JP;
Yuki Bessho, Nishikasugai-Gun, JP;
Nobuo Takahashi, Kasugai, JP;
Takao Ohnishi, Nishikasugai-Gun, JP;
Masahiro Murasato, Chita, JP;
Yuki Bessho, Nishikasugai-Gun, JP;
Nobuo Takahashi, Kasugai, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A method is provided for manufacturing a piezoelectric/electrostrictive film device including a ceramic substrate and a piezoelectric/electrostrictive operation portion including a lower electrode, a piezoelectric/electrostrictive layer, and upper electrode stacked on the substrate. The piezoelectric/electrostrictive layer is formed to extend beyond at least one of electrodes to form projected portions at its ends. The method includes the steps of forming the piezoelectric/electrostrictive layer so that ends of the piezoelectric/electrostrictive layer are projected to extend beyond ends of at least one electrode, applying a coating liquid in a sufficient amount so that the coating liquid permeates through a gap between at least the projected end portion of the piezoelectric/electrostrictive layer and the substrate, and so as to coat a predetermined portion of the at least one electrode, and drying the applied coating liquid to form a coupling member to couple the projected end portions of the piezoelectric/electrostrictive layer to the substrate.