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:
Dec. 16, 2008
Filed:
May. 27, 2004
Hidekazu Kodama, Tokyo, JP;
Munehiro Date, Tokyo, JP;
Pavel Mokry, Tokyo, JP;
Kazunori Kimura, Tokyo, JP;
Tomonao Okubo, Tokyo, JP;
Eiichi Fukada, Tokyo, JP;
Hidekazu Kodama, Tokyo, JP;
Munehiro Date, Tokyo, JP;
Pavel Mokry, Tokyo, JP;
Kazunori Kimura, Tokyo, JP;
Tomonao Okubo, Tokyo, JP;
Eiichi Fukada, Tokyo, JP;
Rion Co., Ltd, Tokyo, JP;
Kobayashi Institute of Physical Research, Tokyo, JP;
Abstract
A sound insulation/absorption structure, a sound insulation/absorption device, and a structure having these applied thereto and a member constituting the same, are capable of insulating or absorbing sound by stiffness control. The sound insulation/absorption structure comprises a film member, such as a polymer film or metal foil, and a frame body having at least one annular opening, the film member being fixed to the frame body, the section of the film member surrounded by the frame body being of a curved shape such as a dome, wherein the resonance frequency of the in-plane stretching of this curved shape is set at a frequency equal to or higher than the audible frequency band, so as to insulate or absorb sound by the elastic force of the film. The film member may be replaced by an acrylic, polyethylene terephthalate or other plastic plate, an aluminum or other metal plate, or a veneer or other plate member, molded into a curved shape, such as a dome, a semi-cylinder and a cone.