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:
Oct. 17, 1995
Filed:
Mar. 14, 1994
Yasuo Okawa, Nagoya, JP;
Yasuo Imoto, Nagoya, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
Disclosed is a multilayer piezoelectric element in which the anisotropic conductive layers are formed on two side surfaces, each surface opposing with each other, of the multilayer piezoelectric element that a plurality of the piezoelectric plates and the internal electrodes are alternately stacked and the conductive portions are alternately formed in the anisotropic conductive layer corresponding to the internal electrodes disposed on each side surface, thereby the internal electrodes and the external electrodes are electrically connected with each other on each side surface through the conductive portions. And further, it is disclosed a multilayer piezoelectric element in which the conductive protrusions are alternately formed by nickel plating at ends of the internal electrodes disposed on both two side surfaces of the multilayer piezoelectric element in which a plurality of the piezoelectric plates and the internal electrodes are alternately stacked and the anisotropic conductive layers are formed over both side surfaces and further the conductive portions are partially formed in the anisotropic conductive layers by selectively pressing thereof through the conductive protrusions, thereby the internal electrodes and the external electrodes are electrically connected with each other through the conductive protrusions and the conductive portions.