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:
Nov. 18, 2025
Filed:
Feb. 04, 2021
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Hidetaka Muramatsu, Nagoya, JP;
Koshi Kiyama, Nagoya, JP;
Assignee:
Toray Industries, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 5/24 (2006.01); B32B 5/12 (2006.01); C08J 5/04 (2006.01); H05K 5/02 (2006.01);
U.S. Cl.
CPC ...
C08J 5/243 (2021.05); B32B 5/12 (2013.01); C08J 5/042 (2013.01); H05K 5/02 (2013.01); B32B 2250/05 (2013.01); B32B 2250/20 (2013.01); B32B 2260/023 (2013.01); B32B 2260/046 (2013.01); B32B 2262/106 (2013.01); B32B 2307/212 (2013.01); B32B 2457/00 (2013.01); C08J 2363/00 (2013.01); C08J 2377/02 (2013.01);
Abstract
A carbon fiber-reinforced composite material is capable of transmitting an electromagnetic wave in a low frequency band while having an electromagnetic wave shielding performance in a high frequency band. The carbon fiber-reinforced composite material has a ratio SE/SEof a value SE(dB) at 300 kHz to a value SE(dB) at 1 GHz of a magnetic shielding effectiveness measured by a KEC method is 0.50 or less.