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:
May. 19, 2015
Filed:
Aug. 06, 2008
Masanari Matsuura, Chiryu, JP;
Sotaro Oi, Saitama, JP;
Tomoyuki Kubota, Yatsushiro, JP;
Masaya Tsuruta, Kumamoto, JP;
Masanari Matsuura, Chiryu, JP;
Sotaro Oi, Saitama, JP;
Tomoyuki Kubota, Yatsushiro, JP;
Masaya Tsuruta, Kumamoto, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
HIRATA CORPORATION, Tokyo, JP;
Abstract
A hydrogen vacuum furnace () is provided with a process chamber () wherein a subject () to be heated is stored; a heating chamber () wherein a heater lamp () is stored; and a crystal board () for separating the subject () and the heater lamp () one from the other. In the hydrogen vacuum furnace (), the subject () is heated by a radiant ray applied from the heater lamp (). The process chamber () and the heating chamber () are provided with gas feed ports () and exhaust ports (), respectively, for feeding and exhausting a gas. When the subject () is being heated, atmospheric pressure in each chamber is adjusted so that the heating chamber () is under positive pressure to the process chamber () by feeding or exhausting the gas.