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:
Mar. 20, 2007
Filed:
Apr. 28, 2004
Yukihisa Takeuchi, Nishikamo-Gun, JP;
Masashi Watanabe, Nagoya, JP;
Koji Kimura, Nagoya, JP;
Tatsuo Kawaguchi, Motosu-Gun, JP;
Yukihisa Takeuchi, Nishikamo-Gun, JP;
Masashi Watanabe, Nagoya, JP;
Koji Kimura, Nagoya, JP;
Tatsuo Kawaguchi, Motosu-Gun, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A method of making a matrix type piezoelectric/electrostrictive device having a plurality of pillar shaped piezoelectric/electrostrictive elements, each having a piezoelectric/electrostrictive substance and at least a pair of electrodes being formed on the sides of the substance, are vertically provided on a thick ceramic substrate, such that the device is driven by displacement of the piezoelectric/electrostrictive substance. In this device, the piezoelectric/electrostrictive elements are integrally bonded to the ceramic substrate and independently arranged in two dimensions. The percentage of transgranularly fractured crystal grains on at least the sides of the piezoelectric/electrostrictive substance on which the electrodes are formed is 10% or less. The unit forms a curved surface near a joined section between the substance and the substrate.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile