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:
Nov. 20, 2012
Filed:
Jul. 21, 2008
Yukio Ueshima, Hyogo, JP;
Shinji Suzuki, Tokyo, JP;
Yukio Ueshima, Hyogo, JP;
Shinji Suzuki, Tokyo, JP;
Ushio Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A light emitting type heat treatment apparatus includes relatively low rated power density filament lamps and relatively high rated power density filament lamps, in which a heat treatment including a temperature raising heat process for raising a work piece quickly to a predetermined heat treatment temperature by light emitted from the filament lamps, and a constant temperature heating process succeeding the temperature raising heating process in which the work piece is heated while the predetermined heat treatment temperature is maintained, and a control unit which controls lighting state of the filament lamps so that while at least filament lamps with relatively high rated power density are lighted in the temperature raising heating process, in the constant temperature heating process, only filament lamps with relatively low rated power density are lighted.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile