US Patent 7728493 Piezoelectric/electrostrictive material, piezoelectric/electrostrictive body, and piezoelectric/electrostrictive element
Patent 7728493 was granted and assigned to NGK Insulators on June, 2010 by the United States Patent and Trademark Office.
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Patent abstract
A piezoelectric/electrostrictive material having a nonstoichiometric composition represented by a general formula (1):(1−x)(BiaNabTiO3+δ)−x(KcNbO3+ζ) (1)wherein 0.01≦x<0.08, a<0.5, 1.01≦(a/b)≦1.08, 0.92≦(a+b)/c<0.99, and 0.9≦c≦1.1, and ζ≠0 when δ=0 and δ≠0 when ζ=0.
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Patent Inventor Names
Hideki Shimizu0
Takaaki Koizumi0
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US Patent 07728493 Piezoelectric/electrostrictive material, piezoelectric/electrostrictive body, and piezoelectric/electrostrictive element US Patent 7728493 Piezoelectric/electrostrictive material, piezoelectric/electrostrictive body, and piezoelectric/electrostrictive element
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Patent Number
077284930
Patent Number
77284930
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Current Assignee
Patent Jurisdiction
Patent Number
077284930
Date of Patent
June 1, 2010
0Patent Application Number
117662650
Date Filed
June 21, 2007
0Official Website
Patent Primary Examiner
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US Patent 07728493 Piezoelectric/electrostrictive material, piezoelectric/electrostrictive body, and piezoelectric/electrostrictive element
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07728493
Date of patent
June 1, 2010
Patent application number
11766265
Date Filed
June 21, 2007
Patent primary examiner
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