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. 11, 2012
Filed:
Feb. 16, 2010
Mitsuhiro Matsuzawa, Kashiwa, JP;
Shigenori Togashi, Abiko, JP;
Shinji Hasebe, Kyoto, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a heating device having a microwave generator for generating microwaves, a waveguide for propagating the microwaves, a matching element for adjusting the impedance inside the waveguide and a flow pipe for passing a substance to be heated, an outer pipe of low dielectric constant is arranged to circulate a heat transfer medium for heat exchange around the flow pipe adapted to pass the heated substance and a circulation constant temperature bath is provided for adjusting the temperature of the heat transfer medium for heat exchange and for circulating it, so that microwaves are irradiated while adjusting the temperature of the heat transfer medium for heat exchange to a desired value by means of the circulation constant bath and circulating the heat transfer medium around the flow pipe.