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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 12589580 B1

PDFFull Text
Date of Patent:
Mar. 31, 2026

Filed:

Jun. 25, 2021

Fiber-reinforced composite material and method for producing prepreg

Applicant:

Toray Industries, Inc., Tokyo, JP;

Inventors:

Takashi Ochi, Iyo-gun, JP;

Yoshikazu Kono, Iyo-gun, JP;

Assignee:

TORAY INDUSTRIES, INC., Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Tamra L Dicus

Int. Cl.
CPC ...
B32B 27/20 (2006.01); B32B 1/00 (2024.01); B32B 27/08 (2006.01); B32B 27/12 (2006.01); B32B 33/00 (2006.01); B32B 37/20 (2006.01); B32B 38/00 (2006.01); B32B 38/08 (2006.01);
U.S. Cl.
CPC ...
B32B 27/20 (2013.01); B32B 1/00 (2013.01); B32B 27/08 (2013.01); B32B 27/12 (2013.01); B32B 33/00 (2013.01); B32B 37/20 (2013.01); B32B 38/0004 (2013.01); B32B 38/08 (2013.01); B32B 2038/0076 (2013.01); B32B 2262/106 (2013.01); B32B 2264/108 (2013.01); B32B 2264/303 (2020.08); B32B 2305/076 (2013.01); B32B 2307/202 (2013.01);
Abstract

A fiber-reinforced composite material including reinforcing fiber layers and a resin layer sandwiched therebetween, wherein conductive particles having a sphericity of 85% or more are disposed in the resin layer, and the fiber-reinforced composite material has a portion where upper and lower reinforcing fiber layers are connected by one conductive particle and has a portion where a conductive particle is sunk in a reinforcing fiber layer. Provided is a fiber-reinforced composite material having sufficient electrical conductivity in a thickness direction with a small addition amount of conductive particles.

Find Patent Forward Citations

Ochi, Takashi. (2026). Fiber-reinforced composite material and method for producing prepreg (U.S. Patent No. 12589580). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12589580

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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