Title:
LAMINATED PIEZOELECTRIC DISPLACEMENT ELEMENT AND INK JET TYPE PRINT HEAD
Document Type and Number:
Japanese Patent JP3214017
Kind Code:
B2
Abstract:
PURPOSE: To obtain displacement having directivity in single direction, enable thin cut for high density constitution because cracks are not generated in the outermost layer at the time of machining, obtain necessary displacement amount with a low voltage, and obtain displacement of little distortion.
CONSTITUTION: Piezoelectric bodies 3 are alternately arranged in a sandwich type, in the manner in which a conducting layer constituting one electrode and a conducting layer 2 constituting the other electrode are in parallel with each other. The part position sandwiched by the conducting layere 1, 2 is an active part 6, and the part positions 5, 5a which are not sandwiched are inactive parts. The outermost layer 4 is thicker than the inside layer (between the conducting layers 1 and 2). In order that an electric field may be applied also to the outermost layer 4 to generate displacement, the outermost electrodes 10b, 10a are constituted on the outermost layer end surfaces, so as to be in parallel with the conducting layers 1, 2.
Inventors:
Hisashi Miyazawa
Tomoaki Abe
Komekubo Shuji
Kanaya Munehide
Tomoaki Abe
Komekubo Shuji
Kanaya Munehide
Application Number:
JP851792A
Publication Date:
October 02, 2001
Filing Date:
January 21, 1992
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
B41J2/045; B41J2/055; H01L41/083; H01L41/09; (IPC1-7): H01L41/083; B41J2/045; B41J2/055
Domestic Patent References:
| JP62262472A | ||||
| JP61272984A | ||||
| JP6316685A | ||||
| JP3264360A | ||||
| JP5110157A |
Attorney, Agent or Firm:
Masataka Ueyanagi