X-ray tube

US12484135B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12484135-B2
Application numberUS-202318337558-A
CountryUS
Kind codeB2
Filing dateJun 20, 2023
Priority dateDec 21, 2020
Publication dateNov 25, 2025
Grant dateNov 25, 2025

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

According to one embodiment, an X-ray tube includes a vacuum enclosure in which an output window which transmits X-rays is formed, an anode target provided in the vacuum enclosure so as to oppose the output window, a cathode filament provided in the vacuum enclosure, that emits electrons to be irradiated onto the anode target, a power feed section to which a high voltage cable is connected, and an insulating portion that covers the power feed section and the high-voltage cable with an insulating material, and the power feed section includes a contact surface with which a distal end surface of the high-voltage cable is brought into contact, and an angle formed by the contact surface and the side surface of the high-voltage cable is an acute angle.

First claim

Opening claim text (preview).

What is claimed is: 1 . An X-ray tube, comprising: a vacuum enclosure in which an output window which transmits X-rays is formed; an anode target provided in the vacuum enclosure so as to oppose the output window; a cathode filament, provided in the vacuum enclosure, that emits electrons to be irradiated onto the anode target; a power feed section to which a high-voltage cable is connected to supply high voltage to the anode target; an insulating portion that covers the power feed section and the high-voltage cable with an insulating material, wherein the power feed section includes a contact surface with which a distal end surface of the high-voltage cable is brought into contact, an angle formed by the contact surface and a side surface of the high-voltage cable is an acute angle, the high-voltage cable includes a core material in which the high voltage is applied and a coating material that covers the core material, the core material and the coating material are present on the distal end surface of the high-voltage cable, the core material of the high-voltage cable is connected to the contact surface, and the coating material is brought into contact with the contact surface. 2 . The X-ray tube according to claim 1 , wherein the side surface of the high voltage cable is formed into a tapered shape, a diameter of which is gradually decreased on a side of the distal end surface. 3 . The X-ray tube according to claim 2 , wherein the side surface of the high voltage cable is formed into an uneven surface. 4 . The X-ray tube according to claim 1 , wherein the side surface of the high voltage cable is formed into an uneven surface.

Assignees

Inventors

Classifications

  • H01J35/08Primary

    Anodes; Anti cathodes · CPC title

  • Electrical arrangements · CPC title

  • of the vessel · CPC title

  • High tension · CPC title

  • H05G1/10Primary

    Power supply arrangements for feeding the X-ray tube {(supply circuits with converters in general H02M; supply circuits for emitters and amplifiers H04B1/16 - H04B1/1623)} · CPC title

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What does patent US12484135B2 cover?
According to one embodiment, an X-ray tube includes a vacuum enclosure in which an output window which transmits X-rays is formed, an anode target provided in the vacuum enclosure so as to oppose the output window, a cathode filament provided in the vacuum enclosure, that emits electrons to be irradiated onto the anode target, a power feed section to which a high voltage cable is connected, and…
Who is the assignee on this patent?
Canon Electron Tubes & Devices Co Ltd
What technology area does this patent fall under?
Primary CPC classification H01J35/08. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Nov 25 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).