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. 23, 2005
Filed:
Dec. 22, 2003
Toru Tanikawa, Kanagawa, JP;
Hiroshi Tokunaga, Tokyo, JP;
Shota Nishi, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
Of the first sheet formed of piezoelectric materials and the second sheet formed of prescribed materials, the upper electrode layer formed of conduction materials is formed on one surface of the first sheet and the lower electrode layer formed of conduction materials is formed on the other surface of said first sheet or on one surface of the second sheet. And the first and the second sheets are piled and densified having the lower electrode layer between, and a piezoelectric actuator will be manufactured by patterning the upper electrode layer or the lower electrode layer in order to form multiple electrodes corresponding respectively to each pressure chamber of the pressure chamber forming unit.