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.:

US 8464830 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 18, 2013

Filed:

Mar. 07, 2012
Applicants:

Masaki Ishikawa, Anjo, JP;

Hidekimi Takahashi, Nishio, JP;

Yuji Mori, Miyoshi, JP;

Hiroyuki Honda, Anjo, JP;

Inventors:

Masaki Ishikawa, Anjo, JP;

Hidekimi Takahashi, Nishio, JP;

Yuji Mori, Miyoshi, JP;

Hiroyuki Honda, Anjo, JP;

Assignee:

Takehiro Co., Ltd., Anjyo-Shi, Aichi-Ken, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E04B 1/82 (2006.01);
U.S. Cl.
CPC ...
Abstract

A first sound absorbing material to be located facing a vehicle room interior side, the air-impermeable material having an air-impermeable film having bonding hot-melts on both sides thereof, and the second sound absorbing material to be located facing a vehicle room exterior side are laminated in this order, and are closely-located between two heating boards and are supplied with hot air to melt hot-melts and thus to make a laminate. The laminate is cold press molded with the first sound absorbing material on a lower mold, and at the same time as the press molding, compressed gas is supplied from an upper mold to apply pressure on the air-impermeable material and thus to compression mold the first sound absorbing material.


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