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. 07, 2015
Filed:
Dec. 24, 2009
Nagisa Kuwahara, Shiga, JP;
Etsuo Saitou, Shiga, JP;
Takanori Handa, Shiga, JP;
Takeshi Ishii, Shiga, JP;
Nagisa Kuwahara, Shiga, JP;
Etsuo Saitou, Shiga, JP;
Takanori Handa, Shiga, JP;
Takeshi Ishii, Shiga, JP;
Abstract
A magnetron includes an anode cylinder which has a cylindrical shape with both ends opened and which includes a plurality of vanes radially provided on an inner wall surface thereof, a pair of pole pieces positioned in openings of the both ends of the anode cylinder, and metal sleeves. The metal sleeves are positioned outside the pair of pole pieces and configured to air-tightly seal the anode cylinder. Each of the metal sleeves includes a cylinder part, a flange part continuous with the cylinder part, and a plurality of protrusions provided on a portion in which the cylinder part continues with the flange part.