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:
Feb. 02, 2016

Filed:

Apr. 10, 2014
Applicants:

Kabushiki Kaisha Toshiba, Minato-ku, JP;

Toshiba Electron Tubes & Devices Co., Ltd., Otawara-shi, JP;

Inventors:

Miki Watanabe, Sakura, JP;

Tomonari Ishihara, Otawara, JP;

Hidero Anno, Otawara, JP;

Hideki Ide, Otawara, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 35/10 (2006.01); H01J 35/12 (2006.01); A61B 6/03 (2006.01); A61B 6/00 (2006.01);
U.S. Cl.
CPC ...
H01J 35/12 (2013.01); A61B 6/032 (2013.01); A61B 6/4488 (2013.01);
Abstract

According to one embodiment, an X-ray tube assembly includes a housing, an X-ray tube, a coolant to which at least a part of heat generated by the X-ray tube is transferred, a circulation channel through which the coolant is circulated, a circulation pump, a radiator, an air filter and a fan unit. The air filter is formed of a three-dimensional nonwoven fabric that is formed of irregularly tangled resin fibers and provides a three-dimensional structure having a spatial volume ratio of not less than 93%. The air filter permits air to pass therethrough to eliminate dust from the air.


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