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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 10562084 B1

PDFFull Text
Date of Patent:
Feb. 18, 2020

Filed:

Oct. 14, 2016

Clad steel plate with excellent thermal conductivity

Applicant:

Nippon Steel Nisshin Co., Ltd., Chiyoda-ku, Tokyo, JP;

Inventors:

Masahito Sakaki, Chiyoda-ku Tokyo, JP;

Kouki Tomimura, Chiyoda-ku Tokyo, JP;

Assignee:

NIPPON STEEL NISSHIN CO., LTD., Tokyo, JP;

Attorney:

Cantor Colburn LLP

Primary Examiner:

Dana Ross

Assistant Examiner:

Joseph M Baillargeon

Int. Cl.
CPC ...
B21B 1/38 (2006.01); B21B 1/26 (2006.01); B21B 1/28 (2006.01); B21D 22/02 (2006.01); B32B 3/26 (2006.01); B32B 15/01 (2006.01); C22C 38/40 (2006.01); B32B 3/06 (2006.01); B32B 3/28 (2006.01);
U.S. Cl.
CPC ...
B21B 1/38 (2013.01); B21B 1/26 (2013.01); B21B 1/28 (2013.01); B21D 22/02 (2013.01); B32B 3/263 (2013.01); B32B 15/011 (2013.01); C22C 38/40 (2013.01); B21B 2001/383 (2013.01); B32B 3/06 (2013.01); B32B 3/28 (2013.01); B32B 2250/03 (2013.01); B32B 2307/302 (2013.01); B32B 2311/30 (2013.01); C21D 2251/02 (2013.01);
Abstract

Provided is a clad steel plate with excellent thermal conductivity that can be used suitably in cookware and the like. The present invention is a three-layer clad steel plate having a carbon steel base material and stainless steel mating material disposed respectively on both surface sides of the base material, wherein a plate thickness ratio L given by Equation (1) is 1.0-5.0 and at least one surface of the clad steel plate has a plurality of protrusions and recesses. Plate thickness ratio L=the plate thickness of the base material/the total thickness of the mating material . . . Equation (1) Here, the base material thickness and the mating material thickness are the thicknesses at the protrusions.

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