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. 12, 2020
Filed:
Mar. 06, 2017
Shimadzu Corporation, Kyoto, JP;
Toshimichi Masaki, Kyoto, JP;
Shimadzu Corporation, Nakagyo-ku, Kyoto-shi, Kyoto, JP;
Abstract
Provided is an X-ray tube capable of obtaining a clear X-ray image by reducing unnecessary X-rays radiated from a holder shaft. The X-ray tube includes an electron sourcefor generating an electron beam B, an anodefor accelerating the electron beam B and having a holeallowing the electron beam B to pass through, a cylindrical holder shaftforming a passage for allowing the electron beam B to pass through a holeof the anode, a magnetic lensarranged around the holder shaftand configured to converge the electron beam B, a target holderconnected to the holder shaft, a targetarranged in the target holderso that the electron beam B collides with the target, and an irradiation windowarranged in the target holderand configured to extract X-rays generated from the targetto the outside. The inner wall of the holder shaftis made of a carbon material to reduce X-rays generated when the electron beam B hits the holder shaft