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. 20, 1980
Filed:
Apr. 19, 1978
Applicant:
Inventors:
Tokuju Koinuma, Kawasaki, JP;
Norio Tashiro, Yokohama, JP;
Assignee:
Tokyo Shibaura Electric Co., Ltd., Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315 3951 ; 315 3953 ; 315 3971 ;
Abstract
The magnetron of this invention comprises permanent magnets, resonant cavity unit and microwave-oscillating member such as a filament all set in a cylindrical yoke made of soft magnetic material and used as an evacuated envelope. The magnetron is forced into an opening bored in a fitting board, or inserted into said opening, followed by tightening. This fitting board enables the magnetron to be easily mounted on a waveguide or microwave oven.