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.

Date of Patent:
Dec. 30, 2025

Filed:

Dec. 01, 2020
Applicants:

Toyo Kohan Co., Ltd., Tokyo, JP;

Suncorona Oda Co., Ltd., Komatsu, JP;

Inventors:

Hiroki Yanaga, Tokyo, JP;

Hirofumi Tashiro, Kudamatsu, JP;

Hideki Yamagata, Tokyo, JP;

Keisuke Sone, Komatsu, JP;

Masaki Kobayashi, Komatsu, JP;

Assignees:

Toyo Kohan Co., Ltd., Tokyo, JP;

Suncorona Oda Co., Ltd., Ishikawa, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B29C 70/14 (2006.01); B29C 70/34 (2006.01); B32B 3/02 (2006.01); B32B 15/08 (2006.01); B32B 15/18 (2006.01); B32B 25/02 (2006.01); B32B 33/00 (2006.01); B32B 37/20 (2006.01); B29K 307/04 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B29C 70/14 (2013.01); B29C 70/34 (2013.01); B32B 3/02 (2013.01); B32B 15/08 (2013.01); B32B 15/18 (2013.01); B32B 25/02 (2013.01); B32B 33/00 (2013.01); B32B 37/20 (2013.01); B29K 2307/04 (2013.01); B29L 2031/001 (2013.01); B32B 2250/02 (2013.01); B32B 2255/06 (2013.01); B32B 2255/205 (2013.01); B32B 2262/106 (2013.01); B32B 2305/076 (2013.01); B32B 2305/08 (2013.01); B32B 2307/54 (2013.01); B32B 2307/546 (2013.01); B32B 2311/30 (2013.01); B32B 2313/04 (2013.01);
Abstract

[Object] The purpose of the present invention is to provide a layered composite that is high in both flexural modulus and moldability. [Solving Means] Provided is a layered composite including a carbon-fiber-reinforced resin in which a chopped strand prepreg obtained by impregnating fiber in resin is oriented in such a manner as to exhibit pseudo-isotropic properties, and a steel plate that is layered on at least one surface of the carbon-fiber-reinforced resin and has a tensile breakage elongation φ of equal to or more than 20%, the flexural modulus in a flat plate state obtained in compliance with ASTM D-790 being equal to or more than 30 GPa.


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