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:
Jan. 21, 2020
Filed:
Oct. 06, 2015
Applicant:
Jtekt Corporation, Osaka-shi, Osaka, JP;
Inventors:
Wataru Yoshida, Kashiba, JP;
Towako Matsui, Osaka, JP;
Katsuhiko Kizawa, Osaka, JP;
Takashi Sada, Kashiwara, JP;
Tsuyoshi Mikami, Yamatotakada, JP;
Assignee:
JTEKT CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 1/667 (2006.01); H05B 6/10 (2006.01); C21D 1/42 (2006.01); C21D 6/00 (2006.01); C22C 38/44 (2006.01); C22C 38/04 (2006.01); C22C 38/02 (2006.01); C22C 38/00 (2006.01);
U.S. Cl.
CPC ...
C21D 1/667 (2013.01); C21D 1/42 (2013.01); C21D 6/004 (2013.01); C21D 6/005 (2013.01); C21D 6/008 (2013.01); C22C 38/00 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/44 (2013.01); H05B 6/101 (2013.01); Y02P 10/253 (2015.11);
Abstract
A heat treatment apparatus that thermally treats an annular workpiece formed of a steel material by inductively heating the workpiece includes a treatment tank in which the workpiece is set and thermally treated, a holding portion that holds the workpiece at a predetermined position, an induction heating coil that surrounds the workpiece to inductively heat the workpiece, and a cooling medium that cools surfaces of the workpiece during the induction heating of the workpiece.