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:
Aug. 06, 2019
Filed:
Jan. 22, 2013
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Yasuo Ohsugi, Tokyo, JP;
Tsuyoshi Hamaya, Tokyo, JP;
Satoshi Arai, Tokyo, JP;
Eiji Yanagida, Okazaki, JP;
Shinya Sano, Toyota, JP;
Masaaki Kondo, Nagoya, JP;
Toshimitsu Takahashi, Toyota, JP;
Yoji Sato, Kasugai, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
A method of annealing a metal member includes: disposing a first heater in an inner space of a hollow cylindrical metal member having an inner peripheral surface provided with plural teeth protruding toward a central direction, the first heater radiating infrared light and being disposed so as to extend parallel to a direction of a central axis of the metal member; heating the metal member from the inner space with the first heater; and gradually cooling the metal member after heating.