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. 18, 2012
Filed:
Dec. 08, 2008
Sotaro Ol, Saitama, JP;
Masanari Matsuura, Chiryu, JP;
Tomoyuki Kubota, Yatsushiro, JP;
Masaya Tsuruta, Kumamoto, JP;
Sotaro Ol, Saitama, JP;
Masanari Matsuura, Chiryu, JP;
Tomoyuki Kubota, Yatsushiro, JP;
Masaya Tsuruta, Kumamoto, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Hirata Corporation, Tokyo, JP;
Abstract
An object is heated to a preheating temperature in an atmosphere of a reducing gas under the atmospheric pressure while adjusting the setting of the emissivity of a non-contact temperature measuring part and regulating the temperature of the object according to the measured value measured by a contact temperature measuring part. The pressure of the atmosphere is reduced. The object is further heated to a heating temperature under a lowered pressure while regulating the temperature of the object according to the measured value measured by the non-contact temperature measuring part whose setting of the emissivity is adjusted during the heating process to the preheating temperature. The pressure of the atmosphere is increased back to the atmospheric pressure while maintaining the heating temperature of the object. The temperature of the object is decreased under the atmospheric pressure. With this, in the process of heating an object under a lowered pressure, the actual temperature of the object is managed over the whole steps, and the object can be most suitably heated according to the actual temperature.