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:
Jun. 16, 2009
Filed:
Jan. 10, 2005
Applicants:
Nagisa Kuwahara, Tochigi, JP;
Masayuki Aiga, Tochigi, JP;
Takeshi Ishii, Tochigi, JP;
Inventors:
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 25/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
For an anode assemblyof a magnetron, a plurality of plate shaped vanesradially arranged at an inner circumference of the roughly round shaped anode assemblyhas a end portion arranged at a central axis of the anode assemblywith a step shape Df having a reduced thickness in a range of predetermined length L from an end portion, so that increase of the facing area of the respective adjacent plate shaped vanesis suppressed while the separation distance of the end portions of the vanes is secured.