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. 28, 2023

Filed:

Feb. 08, 2021
Applicant:

Rigaku Corporation, Akishima, JP;

Inventor:

Masaaki Yamakata, Akishima, JP;

Assignee:

RIGAKU CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 35/12 (2006.01);
U.S. Cl.
CPC ...
H01J 35/13 (2019.05);
Abstract

Provided is an X-ray tube, including: an electron-beam emitting unit; a target having a first surface and a second surface; a solid heat diffusion member fixed onto the second surface of the target; and a flow-path forming member, which is arranged on a side of the solid heat diffusion member, the side being opposite to the target, and that is configured to define a film flow path in which a cooling fluid forms a film flow that is parallel to a surface shape of the solid heat diffusion member. A protruding portion protrudes toward the side of the solid heat diffusion member, which is opposite to the target. The film flow path has a shape extending along at least a part of a surface of the protruding portion.


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