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:
Apr. 07, 2026
Filed:
Feb. 14, 2022
Hamamatsu Photonics K.k., Hamamatsu, JP;
Naonobu Suzuki, Hamamatsu, JP;
Atsushi Ishii, Hamamatsu, JP;
Ryosuke Yabushita, Hamamatsu, JP;
Akimichi Shimizu, Hamamatsu, JP;
Naofumi Kosugi, Hamamatsu, JP;
Ginji Sugiura, Hamamatsu, JP;
HAMAMATSU PHOTONICS K.K., Hamamatsu, JP;
Abstract
An X-ray generation device includes: a housing; an electron gun including an electron-emitting unit that emits an electron inside the housing; a target that generates an X-ray upon an incidence of the electron inside the housing; a window member that seals an opening of the housing and that transmits the X-ray; a tube voltage application unit that applies a tube voltage between the electron-emitting unit and the target; and a magnetic field-forming unit for deflecting the electron by forming a magnetic field between the electron-emitting unit and the target. A thickness of the target has a distribution, and the target is disposed such that the electron is incident on a portion of the target which is relatively thinner in the thickness when the tube voltage is relatively low than when the tube voltage is relatively high.