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:
Apr. 05, 2011
Filed:
Mar. 05, 2008
Etsuo Saitou, Tochigi, JP;
Nagisa Kuwahara, Tochigi, JP;
Takeshi Ishii, Tochigi, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In each anode vane, there is provided the brazing material spreading prevention groovethat interconnects the strap ring inserting portionsandin parallel to the direction of the central axis Ax. With such a configuration, it is possible to prevent the residual brazing materialfrom spreading to the front end partof the anode vanewhen each anode vaneis brazed on the inner peripheral surface of the anode cylinder. Therefore, non-uniformity in thickness of the anode vanescaused by the residual brazing materialis suppressed, and electrostatic capacity between the anode vanesadjacent to each other becomes substantially constant. Thus, it is possible to obtain stable resonant frequency. In addition, it becomes easy to perform adjustment for obtaining the stable resonant frequency in that non-uniformity in initial frequency of the time when the magnetron is completely assembled decreases.