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:
May. 31, 1977
Filed:
Oct. 28, 1975
Applicant:
Inventors:
Masaru Yamano, Hirakata, JA;
Toshio Iemura, Kyoto, JA;
Assignee:
Sanyo Electric Co., Ltd., , JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315 3971 ; 315-534 ; 315 3951 ; 335217 ;
Abstract
A core type magnetron is disclosed wherein a permanent magnet is provided in an anode resonator surrounding a cathode, characterized in that said permanent magnet has a reversible temperature coefficient of which is variable depending on the operating point and which is adapted such that it is utilized at the operating point where said reversible temperature coefficient has the value of zero or close thereto.