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:
May. 16, 2006
Filed:
Aug. 04, 2003
Takanori Matsuda, Kanagawa, JP;
Kenichi Takeda, Kanagawa, JP;
Toshihiro Ifuku, Kanagawa, JP;
Kiyotaka Wasa, Nara, JP;
Takanori Matsuda, Kanagawa, JP;
Kenichi Takeda, Kanagawa, JP;
Toshihiro Ifuku, Kanagawa, JP;
Kiyotaka Wasa, Nara, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An actuator comprises a laminated structure having a vibration plate, a lower electrode, a piezoelectric element, and an upper electrode laminated sequentially on a basic element, and then, at least the lower electrode of the two electrodes is a thin oxide film doped with La of single orientated crystal or monocrystal that contains Sr and Ti. Thus, it is made possible to materialize the micro miniaturized actuator having a strong structure of lamination with high adhesion, which is capable of obtaining large displacement with sufficient durability without spoiling the piezo-electrostrictive property thereof even with the small thickness of the piezoelectric element. With the micro miniaturized actuator thus structured, it is made possible to make a liquid discharge head more precisely.