Patents Assigned to Toshiba Electron Tubes & Devices Co, Ltd.
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Publication number: 20190115183Abstract: According to one embodiment, a stationary anode X-ray tube includes a cathode, an anode, an anode hood, an X-ray transmissive window and a vacuum envelope. A target surface of the anode is an inclined surface disposed to be spaced further away from the cathode towards a first direction. An angle made with respect to a second direction as the first direction is pivoted clockwise or counter-clockwise is any degree but 0°.Type: ApplicationFiled: October 12, 2018Publication date: April 18, 2019Applicant: TOSHIBA ELECTRON TUBES & DEVICES CO., LTDInventor: Tomonobu SAITO
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Publication number: 20190049600Abstract: According to one embodiment, a radiation detector includes an array substrate, a gate driver, a drive control circuit, a drive timing generating circuit, a reading circuit, an image data signal transfer circuit, and a read control circuit. The array substrate includes control lines, data lines and a detection part. The detection part detects radiation. The gate driver is electrically connected to the control lines. The drive control circuit generates start and clock signals for gate drivers, and converts generated signals to a first serial data. The drive timing generating circuit restores the first serial data to the start and clock signals, and transmits the restored signals to the gate drivers. The reading circuit is electrically connected to the data lines. The image data signal transfer circuit converts an image data signal from the reading circuits to a second serial data. The read control circuit restores the second serial data.Type: ApplicationFiled: October 12, 2018Publication date: February 14, 2019Applicant: TOSHIBA ELECTRON TUBES & DEVICES CO., LTD.Inventor: Shuichi FUJITA
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Publication number: 20190018152Abstract: A radiation detector includes a substrate, control lines provided on the substrate and extending in a first direction, data lines provided on the substrate and extending in a second direction crossing the first direction, and detection parts arranged in a matrix. Each detection part includes a thin film transistor and a conversion part converting radiation or light into electricity. Further, a control circuit switches an on state and an off state of each thin film transistor and a signal detection circuit reads out image data in the on state of the thin film transistor. Further, the detector judges a start time of radiation incidence based on a value of the image data read out in the on state of each thin film transistor.Type: ApplicationFiled: February 26, 2018Publication date: January 17, 2019Applicant: Toshiba Electron Tubes & Devices Co., Ltd.Inventor: Hiroshi ONIHASHI
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Patent number: 10181390Abstract: According to one embodiment, an X-ray tube includes a cathode including a filament, an anode target, and an envelope. The cathode includes a metal lead wire supporter which is exposed outside the envelope, which is configured as a part of the envelope, and to which a lead wire as a power supplier to the filament is attached such that the lead wire passes both inside and outside of the envelope, and a metal filament supporter fixed on the lead wire supporter, being in contact with the lead wire supporter, and supporting the filament.Type: GrantFiled: May 12, 2016Date of Patent: January 15, 2019Assignee: Toshiba Electron Tubes & Devices Co., Ltd.Inventors: Naoki Takahashi, Takashi Shimono, Hidero Anno
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Patent number: 10156643Abstract: According to one embodiment, a radiation detector includes a substrate, control lines, data lines, a photoelectric conversion part provided in a region drawn by the control and data lines, and including thin film transistors and photoelectric conversion elements electrically connected to the corresponding control and data lines, a control circuit electrically connected to the control lines, a signal detection circuit electrically connected to the data lines, at least one reference potential part electrically connected to the signal detection circuit, and a determination part electrically connected to the signal detection circuit. The signal detection circuit detects a first current integral value via the data lines and detects a second current integral value from the at least one reference potential part. The determination part determines an incidence start time of a radiation on the basis of a difference between the detected first and second current integral values.Type: GrantFiled: June 13, 2018Date of Patent: December 18, 2018Assignee: Toshiba Electron Tubes & Devices Co., Ltd.Inventor: Hiroshi Onihashi
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Publication number: 20180348382Abstract: According to one embodiment of the invention, a radiation detector includes an array substrate including a plurality of photoelectric conversion elements, a scintillator provided on the plurality of photoelectric conversion elements, the scintillator converting an incident radiation to a fluorescence, a circuit board provided on a side of the array substrate opposite to a side on which the scintillator is provided, a flexible printed board electrically connecting a plurality of wirings provided on the array substrate and a plurality of wirings provided on the circuit board, and when viewing in an incident direction of the radiation, a semiconductor element provided on the flexible printed board, the semiconductor element being positioned below the scintillator.Type: ApplicationFiled: August 8, 2018Publication date: December 6, 2018Applicant: TOSHIBA ELECTRON TUBES & DEVICES CO., LTD.Inventor: Yuichi Shimba
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Publication number: 20180329088Abstract: According to one embodiment, a neutron position detector includes a gas including a 3He gas and an additive gas. The gas has a gas composition being set so that a total of ranges of a proton and a tritium in the gas is 2.0 to 2.7 mm. The partial pressures are in an extent surrounded by a first gas composition point of the 3He gas of 5 atm and the additive gas of 1.6 atm, a second gas composition point of the 3He gas of 5 atm and the additive gas of 2.3 atm, a third gas composition point of the 3He gas of 20 atm and the additive gas of 0.6 atm, and a fourth gas composition point of the 3He gas of 20 atm and the additive gas of 1.3 atm.Type: ApplicationFiled: February 26, 2018Publication date: November 15, 2018Applicant: Toshiba Electron Tubes & Devices, Co., Ltd.Inventors: Noriyuki HIKIDA, Kiyofumi OOKAWA, Kazuya ISHIZAWA
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Patent number: 10126441Abstract: According to one embodiment, a neutron position detector includes a gas including a 3He gas and an additive gas. The gas has a gas composition being set so that a total of ranges of a proton and a tritium in the gas is 2.0 to 2.7 mm. The partial pressures are in an extent surrounded by a first gas composition point of the 3He gas of 5 atm and the additive gas of 1.6 atm, a second gas composition point of the 3He gas of 5 atm and the additive gas of 2.3 atm, a third gas composition point of the 3He gas of 20 atm and the additive gas of 0.6 atm, and a fourth gas composition point of the 3He gas of 20 atm and the additive gas of 1.3 atm.Type: GrantFiled: February 26, 2018Date of Patent: November 13, 2018Assignee: Toshiba Electron Tubes & Devices Co., Ltd.Inventors: Noriyuki Hikida, Kiyofumi Ookawa, Kazuya Ishizawa
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Publication number: 20180315579Abstract: According to one embodiment, an X-ray system includes an X-ray tube including a filament in which a filament current according to a tube current flows, a filament current monitoring unit monitoring the filament current, a tube current monitoring unit monitoring the tube current, and an inspection unit determining whether the tube current falls within a predetermined set range in X-ray emission.Type: ApplicationFiled: April 30, 2018Publication date: November 1, 2018Applicant: Toshiba Electron Tubes & Devices Co., Ltd.Inventor: Tetsuya Yonezawa
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Publication number: 20180299567Abstract: According to one embodiment, a radiation detector includes a substrate, control lines, data lines, a photoelectric conversion part provided in a region drawn by the control and data lines, and including thin film transistors and photoelectric conversion elements electrically connected to the corresponding control and data lines, a control circuit electrically connected to the control lines, a signal detection circuit electrically connected to the data lines, at least one reference potential part electrically connected to the signal detection circuit, and a determination part electrically connected to the signal detection circuit. The signal detection circuit detects a first current integral value via the data lines and detects a second current integral value from the at least one reference potential part. The determination part determines an incidence start time of a radiation on the basis of a difference between the detected first and second current integral values.Type: ApplicationFiled: June 13, 2018Publication date: October 18, 2018Applicant: Toshiba Electron Tubes & Devices Co., Ltd.Inventor: Hiroshi ONIHASHI
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Publication number: 20180197712Abstract: According to one embodiment, an X-ray tube, including a cathode including a filament including a leg portion extending from a coil to a distal portion and including a corner portion at the distal portion, a support terminal including a gap, and including an opening portion in which the gap is opened and a bottom portion located on a side opposite to the opening portion, and a cathode cup being connected to the support terminal, the distal portion being located in the gap, the support terminal including a protruding portion protruding in the gap, being located more closely to the bottom portion side than the distal portion, and being joined to the corner portion of the leg portion.Type: ApplicationFiled: January 11, 2018Publication date: July 12, 2018Applicant: Toshiba Electron Tubes & Devices Co.,Ltd.Inventors: Hiroyuki KUMADAKI, Tomonobu SAITO, Hidero ANNO
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Publication number: 20180182592Abstract: According to one embodiment, an X-ray tube comprises a cathode for emitting electrons, an anode having an anode target with which electrons emitted from the cathode collides to radiate X-rays, a glass container housing the cathode and the anode, an anode rod extending from the anode to an outside of the container, an annular metal member through which the anode rod is inserted, the annular metal member connecting the anode and the container to maintain an inside of the container in vacuum, and an electrically insulating molding resin member charged into a space formed between the anode rod and outer surfaces of the container and the metal member.Type: ApplicationFiled: February 8, 2018Publication date: June 28, 2018Applicant: Toshiba Electron Tubes & Devices Co., Ltd.Inventors: Takeshi Kato, Takanobu Hara, Masayoshi Miyamura
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Patent number: 10007004Abstract: According to one embodiment, an apparatus of manufacturing a radiation detection panel, includes an evaporation source configured to evaporate a scintillator material and emit the scintillator material vertically upward, a holding mechanism located vertically above the evaporation source, and holding a photoelectric conversion substrate, and a heat conductor arranged opposite to the holding mechanism with a gap.Type: GrantFiled: September 6, 2017Date of Patent: June 26, 2018Assignee: TOSHIBA ELECTRON TUBES & DEVICES CO., LTD.Inventors: Hitoshi Chiyoma, Atsuya Yoshida, Wataru Matsuyama, Toyoo Yamamoto, Hiroshi Aida, Yuichi Shimba
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Publication number: 20180164448Abstract: According to one embodiment, a radiation detector includes an array substrate including a plurality of control lines, a plurality of data lines, and a plurality of detection parts, the detection parts detecting radiation directly or in cooperation with a scintillator, a signal detection circuit reading out an image data signal from the plurality of detection parts, a noise detection circuit detecting a noise, a plurality of first wirings, one end portion of each of the first wirings being electrically connected to the data lines, other end portion of each of the first wirings being electrically connected to the signal detection circuit, and a second wiring, one end portion of the second wiring being not electrically connected to the data lines being electrically connected to the plurality of detection parts.Type: ApplicationFiled: February 8, 2018Publication date: June 14, 2018Applicant: TOSHIBA ELECTRON TUBES & DEVICES CO., LTD.Inventor: Hiroshi ONIHASHI
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Patent number: 9922794Abstract: According to one embodiment, a rotating anode X-ray tube includes a fixed shaft, a rotor, a lubricant, target, and a supporting member. The fixed shaft includes a small-diameter portion provided with a first radial bearing surface including first grooved surfaces, and a large-diameter portion provided with a second radial bearing surface including second grooved surfaces. The rotor includes a third radial bearing surface. The lubricant is filled in a gap between the fixed shaft and the rotor, and drawn by the first and second grooved surfaces.Type: GrantFiled: February 26, 2014Date of Patent: March 20, 2018Assignee: Toshiba Electron Tubes & Devices Co., Ltd.Inventors: Masataka Ueki, Yasutaka Ito
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Patent number: 9897705Abstract: According to the embodiment, a radiation detector includes a photoelectric conversion substrate converting light to an electrical signal and a scintillator layer being in contact with the photoelectric conversion substrate and converting externally incident radiation to light. The scintillator layer is made of a phosphor containing Tl as an activator in CsI, which is a halide. A concentration of the activator in the phosphor is 1.6 mass %±0.4 mass %, and a concentration distribution of the activator in an in-plane direction and a film thickness direction is within ±15%.Type: GrantFiled: January 6, 2016Date of Patent: February 20, 2018Assignee: Toshiba Electron Tubes & Devices Co., Ltd.Inventors: Hiroshi Horiuchi, Hiroshi Aida, Atsuya Yoshida
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Patent number: 9892883Abstract: According to one embodiment, a rotating-anode X-ray tube assembly includes a rotating-anode X-ray tube, a housing, a coolant, a first shell, an X-ray shielding member, a second shell and an air introduction unit. The first shell is provided apart from the housing and an envelope of the rotating-anode X-ray tube, and surrounds the envelope. The X-ray shielding member is provided between the first shell and the housing and apart from the housing. The second shell is provided apart from the housing to cause an airway to be formed between the second shell and the housing. The air introduction unit produces a flow of air in the airway.Type: GrantFiled: October 30, 2014Date of Patent: February 13, 2018Assignee: Toshiba Electron Tubes & Devices Co., Ltd.Inventors: Hidero Anno, Masaji Kanagami
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Publication number: 20180040636Abstract: An array substrate according to an embodiment includes a substrate having a first side and a second side, multiple control lines, multiple data lines, a first region having multiply first interconnect pads, and a second region having multiply second interconnect pads. There is at least one of a distance between the first side and a center line of the first region being longer than a distance between the first side and a center line extending in the first direction of a region including the multiple control lines electrically connected to the multiple first interconnect pads, or a distance between the second side and a center line of the second region being longer than a distance between the second side and a center line extending in the second direction of a region including the multiple data lines electrically connected to the multiple second interconnect pads.Type: ApplicationFiled: October 18, 2017Publication date: February 8, 2018Applicant: Toshiba Electron Tubes & Devices Co., Ltd.Inventor: Yuichi SHIMBA
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Patent number: 9880292Abstract: According to one embodiment, an apparatus of manufacturing a radiation detection panel, includes an evaporation source configured to evaporate a scintillator material and emit the scintillator material vertically upward, a holding mechanism located vertically above the evaporation source, and holding a photoelectric conversion substrate, and a heat conductor arranged opposite to the holding mechanism with a gap.Type: GrantFiled: June 11, 2014Date of Patent: January 30, 2018Assignee: TOSHIBA ELECTRON TUBES & DEVICES CO., LTD.Inventors: Hitoshi Chiyoma, Atsuya Yoshida, Wataru Matsuyama, Toyoo Yamamoto, Hiroshi Aida, Yuichi Shimba
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Publication number: 20180020997Abstract: According to one embodiment, a radiation detector includes a detector including a plurality of pixels and converting radiation into electrical information, a read circuit reading the information for each of the plurality of pixels, an image memory storing a plurality of the read information, and a thinning circuit limiting an output of the plurality of information stored in the image memory.Type: ApplicationFiled: June 21, 2017Publication date: January 25, 2018Applicant: Toshiba Electron Tubes & Devices Co., Ltd.Inventor: Shuichi FUJITA