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. 30, 2006
Filed:
Feb. 07, 2005
Masanori Yoshihara, Tochigi, JP;
Hiroshi Ochiai, Tochigi, JP;
Etsuo Saitou, Tochigi, JP;
Hideki Ohguri, Tochigi, JP;
Masanori Yoshihara, Tochigi, JP;
Hiroshi Ochiai, Tochigi, JP;
Etsuo Saitou, Tochigi, JP;
Hideki Ohguri, Tochigi, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
In a magnetron, when a radius of a flat portionof a pole pieceis Rp, a radius of the inner circumference of a large-diameter equalizing ringis Rs, Rp≧Rs, a radius of the outer circumference of a small-diameter equalizing ring is Rs, a radius of a circle inscribed in a leading edge of an anode vane is Ra, and a minimum length between the pole pieces in the axial direction is Lg, the values of Ra, Rs, Rs, and Lg are set such that the following Expressions 1 and 2 are established:1.85≦(1+2)/2≦1.96, and[Expression 1]2.84≦3.0[Expression 2]