Patents by Inventor Hiroshi Aida

Hiroshi Aida has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9880292
    Abstract: 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: Grant
    Filed: June 11, 2014
    Date of Patent: January 30, 2018
    Assignee: TOSHIBA ELECTRON TUBES & DEVICES CO., LTD.
    Inventors: Hitoshi Chiyoma, Atsuya Yoshida, Wataru Matsuyama, Toyoo Yamamoto, Hiroshi Aida, Yuichi Shimba
  • Publication number: 20170363752
    Abstract: 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: Application
    Filed: September 6, 2017
    Publication date: December 21, 2017
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRON TUBES & DEVICES CO., LTD.
    Inventors: Hitoshi CHIYOMA, Atsuya YOSHIDA, Wataru MATSUYAMA, Toyoo YAMAMOTO, Hiroshi AIDA, Yuichi SHIMBA
  • Publication number: 20170363751
    Abstract: 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: Application
    Filed: September 6, 2017
    Publication date: December 21, 2017
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Electron Tubes & Devices Co., Ltd.
    Inventors: Hitoshi Chiyoma, Atsuya Yoshida, Wataru Matsuyama, Toyoo Yamamoto, Hiroshi Aida, Yuichi Shimba
  • Patent number: 9720106
    Abstract: According to an embodiment, a radiation detector comprises a photoelectric conversion substrate and a scintillator layer. The photoelectric conversion substrate converts light into an electrical signal. The scintillator layer contacts the photoelectric conversion substrate and converts radiation incident from the outside into light. The scintillator layer is a fluorescer of CsI containing Tl as an activator. The CsI is a halide. The concentration of the activator inside the fluorescer is 1.6 mass %±0.4 mass %. The concentration of the activator inside the fluorescer in an in-plane direction of the scintillator layer has the relationship of central portion>peripheral portion. The central portion is a central region of a formation region of the scintillator layer. The peripheral portion is an outer circumferential region of the formation region of the scintillator layer.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: August 1, 2017
    Assignee: Toshiba Electron Tubes & Devices Co., Ltd.
    Inventors: Hiroshi Horiuchi, Hiroshi Aida, Atsuya Yoshida
  • Publication number: 20160377742
    Abstract: According to an embodiment, a radiation detector comprises a photoelectric conversion substrate and a scintillator layer. The photoelectric conversion substrate converts light into an electrical signal. The scintillator layer contacts the photoelectric conversion substrate and converts radiation incident from the outside into light. The scintillator layer is a fluorescer of CsI containing Tl as an activator. The CsI is a halide. The concentration of the activator inside the fluorescer is 1.6 mass %±0.4 mass %. The concentration of the activator inside the fluorescer in an in-plane direction of the scintillator layer has the relationship of central portion>peripheral portion. The central portion is a central region of a formation region of the scintillator layer. The peripheral portion is an outer circumferential region of the formation region of the scintillator layer.
    Type: Application
    Filed: May 12, 2016
    Publication date: December 29, 2016
    Applicant: Toshiba Electron Tubes & Devices Co., Ltd.
    Inventors: Hiroshi HORIUCHI, Hiroshi Aida, Atsuya Yoshida
  • Publication number: 20160116607
    Abstract: 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: Application
    Filed: January 6, 2016
    Publication date: April 28, 2016
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Electron Tubes & Devices Co., Ltd.
    Inventors: Hiroshi Horiuchi, Hiroshi Aida, Atsuya Yoshida
  • Publication number: 20140295062
    Abstract: 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: Application
    Filed: June 11, 2014
    Publication date: October 2, 2014
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Electron Tubes & Devices Co., Ltd.
    Inventors: Hitoshi CHIYOMA, Atsuya YOSHIDA, Wataru MATSUYAMA, Toyoo YAMAMOTO, Hiroshi AIDA, Yuichi SHIMBA
  • Publication number: 20130112883
    Abstract: In one embodiment, the radiation image detector includes: a radiation sensor, which includes an image detection unit in which a plurality of pixels a reading circuit, which reads image signal information from a group of pixels that are connected to an arbitrary row select line to which a drive voltage is applied, and also reads noise signal information from pixels when the drive voltage is not applied to all the row select lines; and a noise correction circuit, which corrects the image signal information on the basis of the noise signal information.
    Type: Application
    Filed: September 28, 2012
    Publication date: May 9, 2013
    Inventor: Hiroshi AIDA
  • Patent number: 7910892
    Abstract: A first protective layer is formed on the surface of a photoelectric conversion substrate on which photoelectric transducers have been provided, and then, a scintillator layer is formed thereon, whereby degradation of the photoelectric transducers due to the contact with the scintillator layer is prevented. A second protective layer covering the surface of the scintillator is formed. A peripheral part of the first protective layer is allowed to be in close contact with a peripheral part of the second protective layer to seal the scintillator layer between the first protective layer and the second protective layer, whereby degradation of the scintillator layer due to the moisture in the atmospheric air is prevented.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: March 22, 2011
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electron Tubes & Devices Co., Ltd.
    Inventors: Hiroshi Horiuchi, Hiroshi Aida
  • Patent number: 7455394
    Abstract: An inkjet head has: a channel unit having a plurality of nozzles and a plurality of pressure chambers respectively communicating with the nozzles; and an actuator unit on the channel unit and having a piezoelectric sheet, a plurality of individual electrodes respectively arranged to positionally correspond to the pressure chambers respectively and a common electrode sandwiching the piezoelectric sheet together with the plurality of individual electrodes. The actuator unit has a thickness of 20 ?m to 100 ?m and a surface roughness of the end face of the actuator unit including an intersection with channel unit and the actuator unit is 0.15 ?m to 0.5 ?m, and at least part of the end face is sealed by a resin film.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: November 25, 2008
    Assignees: Brother Kogyo Kabushiki Kaisha, Kyocera Corporation
    Inventors: Atsuo Sakaida, Hisamitsu Sakai, Hiroshi Aida, Shin Ishikura
  • Publication number: 20080237474
    Abstract: A semiconductor photodiode includes: an insulative substrate; a first conductivity type semiconductor layer formed on the insulative substrate; an i-type semiconductor layer formed on the first conductivity type semiconductor layer; a second conductivity type semiconductor layer formed on the i-type semiconductor layer; and a metal electrode. The metal electrode is provided between the insulative substrate and the first conductivity type semiconductor layer so that a peripheral face of the metal electrode is located inside a peripheral face of the first conductivity type semiconductor layer.
    Type: Application
    Filed: March 24, 2008
    Publication date: October 2, 2008
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRON TUBES & DEVICES CO., LTD.
    Inventors: Junichi TONOTANI, Hiroshi AIDA, Hiroshi ONIHASHI, Hitoshi CHIYOMA
  • Publication number: 20080035849
    Abstract: A first protective layer is formed on the surface of a photoelectric conversion substrate on which photoelectric transducers have been provided, and then, a scintillator layer is formed thereon, whereby degradation of the photoelectric transducers due to the contact with the scintillator layer is prevented. A second protective layer covering the surface of the scintillator is formed. A peripheral part of the first protective layer is allowed to be in close contact with a peripheral part of the second protective layer to seal the scintillator layer between the first protective layer and the second protective layer, whereby degradation of the scintillator layer due to the moisture in the atmospheric air is prevented.
    Type: Application
    Filed: December 20, 2006
    Publication date: February 14, 2008
    Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Electron Tubes & Devices Co., Ltd.
    Inventors: Hiroshi Horiuchi, Hiroshi Aida
  • Patent number: 7276706
    Abstract: A radiation detector comprises pixel electrodes which collect charges, a photoelectric converting layer which is provided on the pixel electrodes and which converts incident radiation into the charges, and which contains at least one or more kinds of heavy metal halide (ABn:A=heavy metal, B=halogen, n=either one of 1, 2, and 3) and at least one or more kinds of halogen (B2) respectively, and an electrode layer which is provided on the photoelectric converting layer opposite to the pixel electrodes.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: October 2, 2007
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electron Tubes & Devices Co., Ltd.
    Inventors: Yoshiko Mikoshiba, Hiroshi Aida, Yasuaki Kawasaki, Hiroshi Onihashi, Katsuhisa Homma
  • Publication number: 20070051895
    Abstract: A radiation detector comprises pixel electrodes which collect charges, a photoelectric converting layer which is provided on the pixel electrodes and which converts incident radiation into the charges, and which contains at least one or more kinds of heavy metal halide (ABn:A=heavy metal, B=halogen, n=either one of 1, 2, and 3) and at least one or more kinds of halogen (B2) respectively, and an electrode layer which is provided on the photoelectric converting layer opposite to the pixel electrodes.
    Type: Application
    Filed: November 9, 2006
    Publication date: March 8, 2007
    Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Electron Tubes & Devices Co., Ltd.
    Inventors: Yoshiko Mikoshiba, Hiroshi Aida, Yasuaki Kawasaki, Hiroshi Onihashi, Katsuhisa Homma
  • Patent number: 7108113
    Abstract: Abrasion powder from the clutch retainer 28a is prevented from getting mixed into the grease used for lubricating the roller clutch 10, and the grease is prevented from becoming exposed to high temperatures, and so degrading too quickly is prevented in the grease. Specifically, a retaining piece 33 is formed at one end of the clutch retainer 28a in the inner-diameter side portion thereof, and a retaining collar section 34 is formed around the inner peripheral surface of the other end of the clutch retainer 28a. The inner ring 21 for the clutch is held from both sides in the axial direction between the fitting portion 35 at the tip end of the retaining piece 33 and the retaining collar section 34.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: September 19, 2006
    Assignee: NSK Ltd.
    Inventors: Hiroshi Aida, Takeo Ohkuma
  • Patent number: 7053380
    Abstract: An X-ray detector comprising a scintillator layer (38) provided for each pixel and adapted for converting X radiation into light, a storage capacitor (15) for storing, as electric charge, the light converted in the scintillator layer (38), and a partition layer (39) partitioning the adjoining scintillator layers (38) provided to the respective pixels. The scintillator layer (38) contains a fluorescent material (I), the partition layer contains a second phosphor (P2) having optical characteristics different from those of the fluorescent material (IP1). The wavelength of the fluorescent light emitted from the second phosphor (P2) includes a component which is equal to or longer than the shortest wavelength of the fluorescent light emitted from the fluorescent material (IP1).
    Type: Grant
    Filed: February 10, 2003
    Date of Patent: May 30, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Katsuhisa Homma, Hiroshi Aida, Kenichi Ito, Akiko Fujisawa, Hiroshi Onihashi
  • Patent number: 7044587
    Abstract: An actuator 1 in which a displacement element 7 has a piezoelectric ceramic layer 4 and a pair of electrodes 5, 6 interposing therebetween the piezoelectric ceramic layer 4. The entire thickness of the actuator 1 is 100 ?m or less. The piezoelectric ceramic layer 4 and the substrate 2 have as their principal component a perovskite crystal containing at least Pb; Zr and Ti, and, the maximum difference in a composition ratio Pb/(Ti+Zr) between the surface of the piezoelectric ceramic layer 4 and the inside of the substrate 2 is 0.02 or less. This reduces characteristic variation.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: May 16, 2006
    Assignee: Kyocera Corporation
    Inventors: Yoshihiro Yuu, Daisuke Takahashi, Makoto Higashibeppu, Chitoshi Ueki, Hiroshi Aida
  • Publication number: 20060066691
    Abstract: An inkjet head has: a channel unit having a plurality of nozzles and a plurality of pressure chambers respectively communicating with the nozzles; and an actuator unit stuck onto the channel unit and having a piezoelectric sheet, a plurality of individual electrodes respectively arranged to positionally correspond to the pressure chambers respectively and a common electrode sandwiching the piezoelectric sheet together with the plurality of individual electrodes. The actuator unit has a thickness of 20 ?m to 100 ?m and a surface roughness of the end face of the actuator unit including an intersection with hannel unit and the actuator unit is 0.15 ?m to 0.5 ?m, and at least part of the end face is sealed by a resin film.
    Type: Application
    Filed: September 26, 2005
    Publication date: March 30, 2006
    Applicants: Brother Kogyo Kabushiki Kaisha, Kyocera Corporation
    Inventors: Atsuo Sakaida, Hisamitsu Sakai, Hiroshi Aida, Shin Ishikura
  • Publication number: 20060033030
    Abstract: An X-ray detector comprising a scintillation layer separated by a partition for each pixel and a photodiode for converting fluorescent light, which is converted by the sciltillation layer, into a signal charge, wherein when an average particle diameter of phosphor particles forming the scintillation layer is Ds and an average particle diameter forming the partition is Dw, Ds>Dw is satisfied.
    Type: Application
    Filed: March 28, 2003
    Publication date: February 16, 2006
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Keiichi Ito, Hiroshi Aida, Eiji Oyaizu, Yukihiro Fukuta, Akihisa Saito, Akiko Fujisawa, Katsuhisa Homma
  • Patent number: RE39120
    Abstract: Low thermal expansion ceramics contains a cordierite crystal phase, wherein a phase of a crystalline compound containing at least one element selected from the group consisting of an alkaline earth element other than Mg, a rare earth element, Ga and In, is precipitated in the grain boundaries of said crystal phase, said ceramics has a relative density of not smaller than 95%, a coefficient of thermal expansion of not larger than 1×10?6/° C. at 10 to 40° C., and a Young's modulus of not smaller than 130 GPa. That is, the ceramics has a small coefficient of thermal expansion, is deformed very little depending upon a change in the temperature, has a very high Young's modulus and is highly rigid and is resistance against external force such as vibration. Accordingly, the ceramics is very useful as a member for supporting a wafer or an optical system is a lithography apparatus that forms high resolution circuit patterns on a silicon wafer.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: June 6, 2006
    Assignees: Kyocera Corporation, Nikon Corporation
    Inventors: Yoshihisa Sechi, Masahiro Sato, Hiroshi Aida, Shoji Kohsaka, Yutaka Hayashi