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:
Aug. 27, 2002
Filed:
Mar. 07, 1997
Minoru Usui, Shiojiri, JP;
Takahiro Katakura, Okaya, JP;
Fujio Akahane, Minamiazumi-gun, JP;
Kazumi Kamoi, Shiojiri, JP;
Satoshi Shinada, Shiojiri, JP;
Yukihisa Takeuchi, Nishikamo-gun, JP;
Nobuo Takahashi, Owariasahi, JP;
Other;
Abstract
A piezo-electric/electrostrictive film type chip ( ) includes: a ceramic substrate ( ) having a spacer plate ( ) having a windows-disposed pattern ( ) having a plurality of window portions ( ) and a thin closure plate ( ) for closing the window portions ( ) which is unitarily connected with the spacer plate; and a piezo-electric/electrostrictive working portion ( ) having a lower electrode ( ), a piezo-electric/electrostrictive layer ( ), and an upper electrode ( ), each being formed in the form of a layer and laminated in this order at a closure portion of the window ( ) on the outer surface of the closure plate ( ) by a film formation method. A pin hole ( ) for positioning is formed in or near the center of gravity of the windows-disposed pattern ( ). Deterioration of positional preciseness of the pin hole and a through hole of the piezo-electric/electrostrictive actuator can be minimized, and the piezo-electric/electrostrictive actuator can be unitarily connected with an ink nozzle member with high positional preciseness.