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, 2013
Filed:
Feb. 10, 2010
Applicants:
Shuichi Mizata, Niwa-gun, JP;
Shinya Hayasaka, Konan, JP;
Inventors:
Shuichi Mizata, Niwa-gun, JP;
Shinya Hayasaka, Konan, JP;
Assignee:
Howa Textile Industry Co., Ltd., Kasugai, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 77/13 (2006.01);
U.S. Cl.
CPC ...
Abstract
A sound absorption sheet is constructed by both films which are made of a fire-retardant polyethylene resin and layered with each other. The film has a flat film portion and a large number of air bubble portions. The flat film portion is adhered at its rear face to the flat film from the side of the front face. A large number of air bubble portions are dispersed in a staggered arrangement with each other along the planar direction of the film and raised and formed cylindrically along the thickness direction of the flat film portion in a direction separating from the film.