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:
Jan. 02, 1990
Filed:
Oct. 16, 1987
Applicant:
Inventors:
Tomotaka Nobue, Yamatokoriyama, JP;
Tomohide Matsumoto, Yamatotakada, JP;
Tadashi Hikino, Ikoma, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315 3951 ; 315 3969 ; 315 3953 ; 315 3977 ; 315 3955 ;
Abstract
A magnetron device includes an anode cylinder incorporated with multi-resonant cavities, an output antenna arranged in a direction normal to the axis of the anode cylinder, a set of strap rings arranged through holes in vanes, an antenna lead having one end directly connected to the strap ring, and its other end connected to the output antenna, and an exhaust pipe provided at one end of the anode cylinder. Accordingly the magnetron device operates with high efficiency, is compact and produces a relatively low level of noise.