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.

Date of Patent:
Jan. 02, 2024

Filed:

Jul. 02, 2018
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Hiroshi Suenobu, Tokyo, JP;

Shingo Yamaura, Tokyo, JP;

Tai Tanaka, Tokyo, JP;

Michio Takikawa, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 6/70 (2006.01); H05B 6/80 (2006.01); H01J 37/32 (2006.01);
U.S. Cl.
CPC ...
H01J 37/32201 (2013.01); H01J 37/32311 (2013.01); H01J 37/32926 (2013.01); H05B 6/70 (2013.01); H05B 6/806 (2013.01);
Abstract

A radiation element for radiating a microwave into the heating chamber at least one hollow dielectric member in which a gas is sealed, the hollow dielectric member having electrodes and a control unit having a plasma control unit for controlling the state of the hollow dielectric member and a current adjustment unit for adjusting a current to be applied to the electrodes of the hollow dielectric member under the control of the plasma control unit, the current adjustment unit being connected to the electrodes; and wherein the plasma control unit controls the state of the hollow dielectric member to put into one of states of: a plasma state in which the microwave is reflected by the gas; a plasma state in which the microwave is absorbed by the gas; and a gas state in which the microwave is allowed to be transmitted through the gas.


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