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:
Apr. 26, 2022
Filed:
Nov. 20, 2019
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Inventors:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 8/18 (2006.01); H01F 1/34 (2006.01); C01G 49/06 (2006.01); H02K 1/02 (2006.01);
U.S. Cl.
CPC ...
C23C 8/18 (2013.01); C01G 49/06 (2013.01); H01F 1/344 (2013.01); H02K 1/02 (2013.01); C01P 2002/72 (2013.01);
Abstract
There is provided a method for manufacturing a soft magnetic member where a coating formed of an α-FeOsingle phase having a high electrical resistivity is formed on a soft magnetic alloy substrate. A soft magnetic alloy substrate is heated in an atmosphere containing water vapor and inert gas to form a coating on the soft magnetic alloy substrate. The atmosphere has an oxygen partial pressure in a range of 0 to 1.5 kPa. A soft magnetic member including the soft magnetic alloy substrate and the coating formed on its surface can be obtained.