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. 05, 2006
Filed:
Dec. 01, 2004
Applicants:
Emi Kanazaki, Takaoka, JP;
Satoshi Shibata, Takaoka, JP;
Fumitoshi Kawase, Higashitonami-gun, JP;
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A21B 2/00 (2006.01); F27B 5/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light irradiation heat treatment apparatus and method may use a plane-shaped light irradiation heating component, facing one surface of a workpiece supported in a furnace, to raise the temperature of the workpiece. The temperature of the workpiece is raised by setting an intensity distribution for light irradiated from the light irradiation heating component in accordance with the resistivity of the workpiece. Thereafter, the workpiece is irradiated with light having the set light intensity distribution to raise its temperature.