Title:
MAGNETRON
Document Type and Number:
WIPO Patent Application WO/2015/029430
Kind Code:
A1
Abstract:
In the present invention, a large strap ring and a small strap ring (11A, 11B) are disposed only on a lower end side, serving as an input side, of a tube axis (m) direction of a plurality of vanes (10A, 10B), and a diameter (Rip) of a projecting flat surface (41) of an input-side pole piece (18) is made to be larger than a diameter (Rop) of a projecting flat surface (40) of an output-side pole piece (17). Due to the foregoing, it is possible to provide a magnetron that is practical, with no major deterioration of manufacturability or properties as compared to the prior art, while also reducing the number of components and lowering costs by using two strap rings on one side.
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Inventors:
HIGASHI MASATOSHI (JP)
Application Number:
PCT/JP2014/004408
Publication Date:
March 05, 2015
Filing Date:
August 27, 2014
Export Citation:
Assignee:
TOSHIBA HOKUTO ELECT CORP (JP)
International Classes:
H01J23/20; H01J23/10; H01J23/22
Foreign References:
| JPH01124939A | 1989-05-17 | |||
| JPH09129149A | 1997-05-16 | |||
| JPH0414734A | 1992-01-20 | |||
| JP2013073730A | 2013-04-22 | |||
| JP2009070613A | 2009-04-02 | |||
| JP2013073730A | 2013-04-22 | |||
| JPH07302548A | 1995-11-14 |
Other References:
See also references of EP 3041025A4
Attorney, Agent or Firm:
TANABE, Shigemoto (JP)
Tanabe Blessing machine (JP)
Tanabe Blessing machine (JP)
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