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公开(公告)号：USD913940S1
公开(公告)日：2021-03-23
申请号：US29665949
申请日：2018-10-09
Applicant: HAMAMATSU PHOTONICS K.K.
Designer： Atsushi Ishii , Ryosuke Yabushita , Tutomu Inazuru
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公开(公告)号：US10943759B2
公开(公告)日：2021-03-09
申请号：US16380224
申请日：2019-04-10
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Atsushi Ishii , Ryosuke Yabushita , Tutomu Inazuru
Abstract: An X-ray tube includes a vacuum housing, an electron gun, and an anode that includes a target emitting X-rays and a target supporting portion supporting the target. The target supporting portion has an anode main body portion and a protrusion portion including a side surface portion. The anode main body portion includes an outer circumferential surface extending in a direction of a tube axis, and a connection portion formed between the side surface portion of the protrusion portion and the outer circumferential surface. An angle formed by the outer circumferential surface and the connection portion is an obtuse angle.
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公开(公告)号：US10825638B2
公开(公告)日：2020-11-03
申请号：US16380105
申请日：2019-04-10
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Atsushi Ishii , Tutomu Inazuru
Abstract: An X-ray tube includes a rod-shaped anode which includes a target receiving electrons and generating X-rays and has a main body portion extending in a direction of a tube axis; a vacuum housing which accommodates a distal end side of the anode having the target disposed therein and in which a proximal end side of the anode is fixed by a housing coupling portion; and a cover electrode which is disposed inside the vacuum housing, is coupled to the anode by a cover coupling portion, and surrounds the housing coupling portion. The anode has a third diameter increasing portion protruding from a front surface of the main body portion in a direction intersecting the tube axis. The cover coupling portion is disposed closer to the proximal end side of the anode than the third diameter increasing portion.
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Patent Agency Ranking
公开(公告)号：US11875965B2
公开(公告)日：2024-01-16
申请号：US17626563
申请日：2020-07-13
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Atsushi Ishii
CPC classification number: H01J35/147 , H01J35/16 , H01J35/14 , H01J2235/166
Abstract: An X-ray tube includes an electron gun unit, a target that generates X-rays, and a vacuum housing unit. The vacuum housing unit has a metal housing unit for supporting the target and a bulb unit formed of an insulating material and connected to the metal housing unit. The electron gun unit has a focusing electrode portion at an end portion on an emission side of the electrons, the focusing electrode portion having a tubular shape for focusing the emitted electrons. In the electron gun unit, at least a part of the focusing electrode portion is supported by the bulb unit so as to be located in the metal housing unit. When viewed from an X-ray generation position on the target, the focusing electrode portion blocks a line of sight from the X-ray generation position to the bulb unit.
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公开(公告)号：US11166360B2
公开(公告)日：2021-11-02
申请号：US17040128
申请日：2019-02-18
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Atsushi Ishii
Abstract: An X-ray generator includes an X-ray tube configured to generate X-rays, an X-ray tube accommodation portion which accommodates at least a part of the X-ray tube and enclosing insulating oil, a second accommodation portion surrounding the X-ray tube accommodation portion when viewed in a tube axis direction of the X-ray tube, a blower fan configured to circulate gas inside a surrounding space defined between the X-ray tube accommodation portion and the second accommodation portion, and an X-ray shielding portion made of a material having a higher X-ray shielding ability than the X-ray tube accommodation portion and the second accommodation portion, and provided on an inner surface of the second accommodation portion.
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公开(公告)号：US11147148B2
公开(公告)日：2021-10-12
申请号：US17043833
申请日：2019-02-18
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Atsushi Ishii
IPC: H05G1/06
Abstract: An X-ray generator includes an X-ray tube, an X-ray tube accommodation portion, and a power source unit having an internal substrate supplying a voltage to the X-ray tube sealed inside an insulating block. Insulating oil is enclosed in a space defined by an upper surface of the insulating block and an inner surface of the X-ray tube accommodation portion. A high-voltage power supply unit connected to a target support portion is disposed on the upper surface. At least one protrusion portion protruding to an insulating valve side beyond a boundary portion where the high-voltage power supply unit, the upper surface, and the insulating oil meet and surrounding the high-voltage power supply unit is provided on the upper surface. An apex portion of the protrusion portion is separated from an imaginary plane including an end portion of the insulating valve and extending in a direction orthogonal to a tube axis.
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公开(公告)号：US10923307B1
公开(公告)日：2021-02-16
申请号：US16846406
申请日：2020-04-13
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Ryosuke Yabushita , Atsushi Ishii
Abstract: An electron beam generator includes a cathode having a distal end portion emitting an electron beam, a first electrode accommodating the distal end portion, and a second electrode surrounding the first electrode when viewed from a direction along an emission axis of the electron beam. The first electrode has a first side wall surrounding the distal end portion. The second electrode has a second side wall separated from the first side wall and surrounding the first side wall. The first side wall is provided with a first opening portion allowing a first space surrounded by the first side wall and a second space between the first side wall and the second side wall to communicate with each other. The second electrode is provided with a second opening portion opening in the direction along the emission axis such that the second space and an external space communicate with each other.
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公开(公告)号：US20150117616A1
公开(公告)日：2015-04-30
申请号：US14396417
申请日：2013-03-15
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Atsushi Ishii , Motohiro Suyama , Naonobu Suzuki , Ryosuke Yabushita
CPC classification number: H05G1/52 , H01J35/08 , H01J35/116 , H01J35/14 , H01J35/30 , H01J2235/081
Abstract: An X-ray generation device is provided with an electron gun unit for emitting an electron beam, and a target unit having a substrate comprised of diamond, and a target body comprised of a material for generating X-rays with incidence of the electron beam thereto and buried in close contact in the substrate. An outer diameter of the target body is in the range of 0.05 to 1 μm. An outer diameter of an irradiation field of the electron beam on the target unit is in the range of 1.1 to 2.5 times the outer diameter of the target body. The X-ray generation device irradiates the target body with the electron beam so that the target body is included in the irradiation field, thereby to generate X-rays from the target body.
Abstract translation: X射线产生装置设置有用于发射电子束的电子枪单元和具有由金刚石构成的衬底的目标单元和由用于产生电子束入射的X射线的材料构成的靶体 并埋在基板中紧密接触。 靶体的外径在0.05〜1μm的范围内。 靶单元上的电子束的照射场的外径在目标体的外径的1.1〜2.5倍的范围内。 X射线产生装置用电子束照射目标体，使得靶体被包含在照射场中，从而从目标体产生X射线。
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