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:
Feb. 26, 2019
Filed:
May. 18, 2016
Korea Institute of Science and Technology, Seoul, KR;
Chong Yun Kang, Seoul, KR;
Seok Jin Yoon, Seoul, KR;
Jin Sang Kim, Seoul, KR;
Ji-Won Choi, Seoul, KR;
Seung Hyub Baek, Seoul, KR;
Seong Keun Kim, Seoul, KR;
Woo-Suk Jung, Seoul, KR;
Beomjin Kwon, Seoul, KR;
Korea Institute of Science and Technology, Seoul, KR;
Abstract
Disclosed is a curved piezoelectric device maximizing an electrical potential of the piezoelectric material corresponding to an external mechanical stress. The curved piezoelectric device includes: a curved substrate; and a piezoelectric material provided on one surface or both surfaces of the curved substrate, wherein when a stress is applied, a neutral plane in which a compressive stress and a tensile stress are balanced is located in the curved substrate, wherein the location of the neutral plane is determined by yand yof Equation 1 or 2 below, and wherein the location of the neutral plane is controllable by adjusting a thickness (d), a sectional area (A) and a Young's modulus (E) of each of the curved substrate and the piezoelectric material: wherein