Title:
積層電気-機械エネルギー変換素子
Document Type and Number:
Japanese Patent JP4878691
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a laminated piezoelectric element for contriving the miniaturization of an oscillation wave motor and using a through hole. SOLUTION: In the laminated piezoelectric element connected by using the through hole in each plurality of electric areas of a plurality of layers, the through hole is formed in the extreme neighborhood of the outside diameter or the inside diameter of the element, the insulation part of the circumference of the through hole is made a small area to the minimum so as to be a substantially semi-circular shape, and an inside electrode is enlarged to the edge of the outside diameter or the inside diameter.
Inventors:
Yutaka Maruyama
Nobuyuki Kojima
Toru Esaki
Nobuyuki Kojima
Toru Esaki
Application Number:
JP2001099191A
Publication Date:
February 15, 2012
Filing Date:
March 30, 2001
Export Citation:
Assignee:
Canon Inc
Taiheiyo Cement Co., Ltd.
Taiheiyo Cement Co., Ltd.
International Classes:
H01L41/083; H02N2/00
Domestic Patent References:
| JP11235058A | ||||
| JP11252956A | ||||
| JP8213664A | ||||
| JP9070186A | ||||
| JP7227090A |
Attorney, Agent or Firm:
Tatsuya Nagao
Atsushi Mizumoto
Atsushi Mizumoto