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. 05, 2000
Filed:
Mar. 25, 1997
Applicant:
Inventors:
Yutaka Maruyama, Tokyo, JP;
Nobuyuki Kojima, Yokohama, JP;
Toru Ezaki, Tokyo, JP;
Takahiro Yamakawa, Konosu, JP;
Assignees:
Canon Kabushiki Kaisha, Tokyo, JP;
Taiheiyo Cement Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02N / ; H01L / ;
U.S. Cl.
CPC ...
31032306 ; 310328 ; 310331 ; 310365 ; 310366 ; 310359 ;
Abstract
A vibration drive device including a stack element in which a plurality of layers of an electromechancial energy transducing material and layers of an electrode material are stacked alternately, and a vibrating body is arranged to vibrate with vibration of the stack. The electrode material contains silver in a metal component and the silver is less than 50% by weight.