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:
Sep. 13, 2022
Filed:
May. 27, 2013
Applicant:
Nippon Steel Corporation, Tokyo, JP;
Inventors:
Regis Lemaitre, Bethune, FR;
Ludger Lahn, Moers, DE;
Carsten Schepers, Raesfeld, DE;
Shuichi Yamazaki, Tokyo, JP;
Kazutoshi Takeda, Tokyo, JP;
Masaru Takahashi, Tokyo, JP;
Hirohiko Sato, Tokyo, JP;
Koji Kanehashi, Tokyo, JP;
Assignee:
Nippon Steel Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 28/34 (2006.01); C23C 22/18 (2006.01); C23C 22/20 (2006.01); C23C 22/22 (2006.01); H01F 1/18 (2006.01); C04B 14/06 (2006.01); C23C 22/74 (2006.01); C23C 22/08 (2006.01); C21D 8/12 (2006.01); C04B 111/00 (2006.01);
U.S. Cl.
CPC ...
C04B 28/34 (2013.01); C04B 14/062 (2013.01); C21D 8/1283 (2013.01); C23C 22/08 (2013.01); C23C 22/18 (2013.01); C23C 22/20 (2013.01); C23C 22/22 (2013.01); C23C 22/74 (2013.01); H01F 1/18 (2013.01); C04B 2111/00525 (2013.01); Y10T 428/249969 (2015.04);
Abstract
A solution for forming an insulation coating of grain-oriented electrical steel sheet includes an aqueous solution prepared by mixing a phosphate solution and colloidal silica. Chromium is not added to the aqueous solution. The colloidal silica includes silica particles surface-modified by an aluminate or is prepared by adding an aluminate to colloidal silica such as conventional colloidal silica.