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:
Nov. 04, 2014
Filed:
Apr. 25, 2013
Toyota Motor Engineering & Manufacturing North America, Inc., Erlanger, KY (US);
Kazuhisa Yano, Ann Arbor, MI (US);
Debasish Banerjee, Ann Arbor, MI (US);
Songtao Wu, Ann Arbor, MI (US);
Gaohua Zhu, Ann Arbor, MI (US);
Nichlas Z. Swinteck, Cave Creek, AZ (US);
Pierre A. Deymier, Tucson, AZ (US);
Toyota Motor Engineering & Manufacturing North America, Inc., Erlanger, KY (US);
Arizona Board of Regents, on behalf of the University of Arizona, Tucson, AZ (US);
Abstract
A phononic device is provided suitable for attenuating mechanical vibration, as well as acoustic vibration that propagate through a medium. Through the periodic inclusion of domains of a material in a matrix that vary in the ratio of the longitudinal speed of sound (CL) and the transverse speed of sound (CT) between the domains and the matrix of equal to or greater than 2.0 and 40, respectively; improved significant attenuation of vibration is achieved.