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:
Apr. 29, 2008
Filed:
Jun. 25, 2004
Shingo Shikuwa, Kawasaki, JP;
Yosiyuki Morisita, Kawasaki, JP;
Hisao Hoshino, Hamura, JP;
Tatsushi Yurudume, Hamura, JP;
Satoshi Shimizu, Hamura, JP;
Shingo Shikuwa, Kawasaki, JP;
Yosiyuki Morisita, Kawasaki, JP;
Hisao Hoshino, Hamura, JP;
Tatsushi Yurudume, Hamura, JP;
Satoshi Shimizu, Hamura, JP;
Kikuchi Co., Ltd., Tokyo, JP;
Abstract
A reduction of the unevenness of a temperature increase at the end of heating work can be achieved without specific equipment, and with securing the shortening of the working time, which is an advantage of a bulk heating. When a region to be heated of an article made of a thin sheet is heated inductively so that the whole region thereof reaches a temperature equal to or more than a target temperature using an inductive portion of a heating inductor, to which a high-frequency current is applied by a power supply device, by stopping or reducing temporarily the power application of the high-frequency current to the heating inductor during the temperature increase, a temperature difference in the region to be heated is reduced so that the unevenness of the temperature increase at the end of the heating work is reduced by the step of reducing the temperature difference.