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:
Mar. 04, 2014
Filed:
Mar. 11, 2011
Applicant:
Dai Takemoto, Nishinomiya, JP;
Inventor:
Dai Takemoto, Nishinomiya, JP;
Assignee:
Furuno Electric Company, Limited, Nishinomiya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 39/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
This disclosure provides a device for heating a cathode of a magnetron, which includes a heater for heating the cathode of the magnetron, a heater current detecting module for detecting a value of heater current that flows into the heater, and a control module for determining the completion of preheating of the magnetron based on a change in the heater current.