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. 16, 2012
Filed:
Sep. 29, 2006
Masaki Terazono, Kirishima, JP;
Takafumi Tsurumaru, Kirishima, JP;
Shigenobu Nakamura, Kirishima, JP;
Ken Yamamoto, Kirishima, JP;
Masaki Terazono, Kirishima, JP;
Takafumi Tsurumaru, Kirishima, JP;
Shigenobu Nakamura, Kirishima, JP;
Ken Yamamoto, Kirishima, JP;
Kyocera Corporation, Kyoto, JP;
Abstract
In a multilayer piezoelectric element comprising a plurality of piezoelectric layers and a plurality of metal layers which are alternately stacked one upon another, the metal layers includes a plurality of high resistance metal layers having a higher electrical resistance than adjacent metal layers on the both sides. The high resistance metal layers are regularly arranged so as to interpose a plurality of different metal layers other than the high resistance metal layers. In another multilayer piezoelectric element in which a plurality of piezoelectric layers and a plurality of metal layers are alternately stacked one upon another, at least one layer of the metal layers is formed by a plurality of partial metal layers disposed between the piezoelectric layers.