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:
Sep. 07, 2010
Filed:
Jul. 30, 2008
Applicants:
Chie Fukuhara, Hiroshima, JP;
Naoko Yorozu, Hiroshima, JP;
Eiji Murasawa, Hiroshima, JP;
Tsuyoshi Sugihara, Hiroshima, JP;
Inventors:
Chie Fukuhara, Hiroshima, JP;
Naoko Yorozu, Hiroshima, JP;
Eiji Murasawa, Hiroshima, JP;
Tsuyoshi Sugihara, Hiroshima, JP;
Assignee:
Mazda Motor Corporation, , JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04B 1/82 (2006.01); E04B 1/84 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a sound-absorbing material, which has a flow resistivity R of 3.3×10N·s/mor more, a Young's modulus E of 1.2×10to 2.0×10N/m, and a loss factor δ of 0.12 or less. The sound-absorbing material of the present invention can enhance a sound absorption capability in a wide range of a low/intermediate-frequency region to a high-frequency region at a higher level as compared with conventional sound-absorbing materials.