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. 15, 1994
Filed:
Dec. 22, 1992
Applicant:
Inventors:
Shigenori Kazama, Yokohama, JP;
Hiroshi Sugawara, Zushi, JP;
Yugoro Masuda, Takatsuki, JP;
Akira Dono, Osaka, JP;
Assignees:
Nissan Motor Co., Ltd., Yokohama, JP;
Kanebo Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04B / ;
U.S. Cl.
CPC ...
181286 ; 428224 ; 428284 ; 428288 ; 428296 ; 428397 ;
Abstract
A sound absorbing material comprises a fiber gathered body containing at least 50% by weight of synthetic fiber staples and having a mean density of 0.02-0.2 g/cm.sup.3, in which at least 30% by weight of irregular-shaped fibers having a particular sectional shape are contained in the fiber gathered body.