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.

Date of Patent:
Sep. 08, 2015

Filed:

Oct. 01, 2013
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Yoshio Suzuki, Kawasaki, JP;

Koichi Tsunoda, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 35/12 (2006.01); H05G 1/02 (2006.01); H05G 1/06 (2006.01);
U.S. Cl.
CPC ...
H05G 1/025 (2013.01); H05G 1/06 (2013.01);
Abstract

A radiation generating unit includes a radiation tube that has a vacuum chamber that has a cathode and anode at both ends of an insulating tubular member and is arranged inside a storage container filled with an insulating liquid in a state in which the radiation tube is arranged inside an insulating outer casing tube with a gap from a surrounding, wherein walls which partition the gap between the radiation tube and outer casing tube are provided while allowing a flow of the insulating liquid between the cathode side and anode side of the radiation tube and leaving in the gap a flow path which does not linearly continue to the cathode side and anode side.


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