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:
Oct. 16, 2018
Filed:
Jan. 29, 2015
Autonetworks Technologies, Ltd., Yokkaichi, Mie, JP;
Sumitomo Wiring Systems, Ltd., Yokkaichi, Mie, JP;
Sumitomo Electric Industries, Ltd., Osaka-shi, Osaka, JP;
Yutaka Takata, Mie, JP;
AUTONETWORKS TECHNOLOGIES, LTD., Yokkaichi, Mie, JP;
SUMITOMO WIRING SYSTEMS, LTD., Yokkaichi, Mie, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka-Shi, Osaka, JP;
Abstract
If a thickness of a sound absorber arranged in a vehicle and clearances in the vehicle do not match and gaps are formed between the sound absorber and the respective members in the vehicle, abnormal noise due to the mutual contact of the members and noise outside the vehicle enter the vehicle interior to impair vehicle interior quietness. This is solved by a sound absorber which includes a nonwoven fabric containing 5 to 50 mass % of second fibers having a lower melting point than that of first fibers and can cause the first and second fibers to be more loosely interfaced and increase a volume of the nonwoven fabric by heating the nonwoven fabric to about the melting point of the second fibers and softening or melting the second fibers even after production.