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. 01, 2018
Filed:
Dec. 06, 2016
Satoshi Mizukami, Kanagawa, JP;
Satoshi Mizukami, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An electromechanical transducer element includes an electromechanical transducer film formed of PZT, wherein Ti/(Zr+Ti) in the electromechanical transducer film is greater than or equal to 45% and less than or equal to 55%, and wherein, when a total of peak intensity values obtained by θ-2θ measurement is set to be 1, for an orientation ratio of a (100) plane orientation calculated based on a ratio of the peak intensity value of each orientation, Δρ(100) is less than or equal to 5%, wherein Δρ(100) is a gradient with respect to the (100) plane orientation in an array direction, and the ratio of each peak intensity value of each orientation is represented by ρ(hkl)=I(hkl)/ΣI(hkl), where ρ(hkl) is a degree of orientation in an (hkl) plane orientation, I(hkl) is the peak intensity value of the orientation, and ΣI(hkl) is the total of the peak intensity values.