Patents by Inventor Jun Sakurai

Jun Sakurai 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: 11050316
    Abstract: There is provided an axial gap rotary electric machine which includes a stator in which a plurality of core units, the core units having a core, a winding disposed in an outer periphery of the core, and a bobbin disposed between the core and the winding, are arranged in an annular shape about a rotation shaft, at least one rotor which faces an end surface of the core in an axial direction through a gap, a rotation shaft which rotates together with the rotor, and a housing in which the stator and the rotor are stored. A wiring fixing member is provided in an end surface and on an outer side of the stator in the axial direction, and includes an outer wall and an inner wall extending in a circumferential direction along a circumferential outer shape of the stator. The stator includes a crossover wire which leads the winding from the core unit. The crossover wire is disposed between the outer wall and the inner wall of the wiring fixing member.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: June 29, 2021
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Yasuei Yoneoka, Shuuichi Takahashi, Toshifumi Suzuki, Katsuyuki Yamazaki, Daisaku Takahashi, Daisuke Kurai, Jun Sakurai
  • Patent number: 10983224
    Abstract: A scintillator panel includes a substrate, a resin protective layer formed on the substrate and made of an organic material, a barrier layer formed on the resin protective layer and including thallium iodide as a main component, and a scintillator layer formed on the barrier layer and including cesium iodide with thallium added thereto as a main component. According to this scintillator panel, moisture resistance can be improved due to the barrier layer provided therein.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: April 20, 2021
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Keisuke Goto, Kazuhiro Shirakawa, Hidenori Jonishi, Masashi Hatanaka, Haruki Yamaji, Jun Sakurai, Yutaka Kusuyama
  • Patent number: 10886803
    Abstract: This axial gap-type rotary electrical machine has: a stator in which a plurality of core units each configured from a core, a coil, and a bobbin are disposed, centered around a rotating shaft, in an annular shape along the inner circumferential surface of a housing; and a rotor that is face-to-face with a cross-sectional surface of the core through a predetermined gap in a radial direction of the rotating shaft. The bobbin is formed in a cylindrical shape, has flange parts extending a predetermined amount in the outer circumferential direction at the top and bottom of the cylindrical shape, is provided with notch sections on the tip part in the inner circumferential direction of the flange part of the bobbin, and forms an acute angle. In addition, approximately circular notch sections are formed on adjacent side surface portions of the bobbin in the outer circumferential direction of the bobbin.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: January 5, 2021
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Shuuichi Takahashi, Yasuei Yoneoka, Toshifumi Suzuki, Toru Sakai, Katsuyuki Yamazaki, Daisaku Takahashi, Daisuke Kurai, Jun Sakurai
  • Patent number: 10848029
    Abstract: The purpose of the present invention is to control the lamination thickness of the laminated core of an axial gap rotating electric machine. The axial gap rotating electric machine is provided with: a stator comprising a plurality of core members arranged circularly about the rotational axis center, said core members each comprising a columnar-laminated core having a flux surface in a rotation axis direction, a coil disposed on the outer perimeter of the core in the radial direction, and a substantially cylindrical bobbin disposed between the core and the coil; and at least one rotor facing the flux surface with a predetermined gap interposed therebetween in the rotation axis direction. The bobbin has an inner cylinder facing the outer perimeter of the core in the radial direction, and at least part of the inner diameter of the inner cylinder becomes gradually smaller along the rotation axis direction and makes contact with the outer perimeter surface of the laminated core in the radial direction.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: November 24, 2020
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Jun Sakurai, Daisaku Takahashi, Toru Sakai, Katsuyuki Yamazaki, Shuuichi Takahashi
  • Publication number: 20200284921
    Abstract: A scintillator panel includes a substrate having a substrate main surface, a substrate rear surface, and a substrate side surface; and a scintillator layer having a scintillator rear surface formed of a plurality of columnar crystals, a scintillator main surface, and a scintillator side surface. The substrate side surface and the scintillator side surface are substantially flush with each other. In the substrate, an angle between the substrate rear surface and the substrate side surface is smaller than 90 degrees.
    Type: Application
    Filed: July 3, 2018
    Publication date: September 10, 2020
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Haruki YAMAJI, Kazuhiro SHIRAKAWA, Keisuke GOTO, Hidenori JONISHI, Masashi HATANAKA, Jun SAKURAI
  • Publication number: 20200278460
    Abstract: A scintillator panel includes a substrate having a substrate main surface, a substrate rear surface, and a substrate side surface; a scintillator layer having a scintillator rear surface formed of a plurality of columnar crystals, a scintillator main surface, and a scintillator side surface; and a protective film covering the scintillator side surface of the scintillator layer. The substrate side surface partially has a coarsened region. The scintillator side surface has a coarse surface including an uneven structure. The protective film closely adheres to the scintillator side surface such that the coarse surfaces are covered.
    Type: Application
    Filed: July 3, 2018
    Publication date: September 3, 2020
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Kazuhiro SHIRAKAWA, Keisuke GOTO, Haruki YAMAJI, Hidenori JONISHI, Masashi HATANAKA, Jun SAKURAI
  • Publication number: 20200264322
    Abstract: A scintillator panel includes a substrate made of an organic material, a barrier layer formed on the substrate and including thallium iodide as a main component, and a scintillator layer formed on the barrier layer and including cesium iodide as a main component. According to this scintillator panel, moisture resistance can be improved by providing the barrier layer between the substrate and the scintillator layer.
    Type: Application
    Filed: July 3, 2018
    Publication date: August 20, 2020
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Keisuke GOTO, Kazuhiro SHIRAKAWA, Hidenori JONISHI, Masashi HATANAKA, Haruki YAMAJI, Jun SAKURAI, Yutaka KUSUYAMA
  • Publication number: 20200233102
    Abstract: A scintillator panel includes a substrate, a resin protective layer formed on the substrate and made of an organic material, a barrier layer formed on the resin protective layer and including thallium iodide as a main component, and a scintillator layer formed on the barrier layer and including cesium iodide with thallium added thereto as a main component. According to this scintillator panel, moisture resistance can be improved due to the barrier layer provided therein.
    Type: Application
    Filed: July 3, 2018
    Publication date: July 23, 2020
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Keisuke GOTO, Kazuhiro SHIRAKAWA, Hidenori JONISHI, Masashi HATANAKA, Haruki YAMAJI, Jun SAKURAI, Yutaka KUSUYAMA
  • Publication number: 20200021179
    Abstract: This axial gap-type rotary electrical machine has: a stator in which a plurality of core units each configured from a core, a coil, and a bobbin are disposed centering around a rotary shaft, in an annular shape along the inner circumferential surface of a housing; and a rotor that is face-to-face with a cross-sectional surface of the core through a predetermined gap in the radial direction of the rotary shaft. The rotor comprises a rotor base which is provided with a disk-shaped permanent magnet and an end portion gripping the outer circumference of the permanent magnet, and which holds the permanent magnet. The thickness of the end portion of the rotor base decreases toward the stator side. In particular, the end portion of the rotor base is formed in a tapered shape in which the thickness of the end portion decreases toward the stator side. In addition, the end portion of the rotor base is formed such that high portions and low portions are periodically provided over the circumferential direction.
    Type: Application
    Filed: January 31, 2017
    Publication date: January 16, 2020
    Applicant: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Shuuichi TAKAHASHI, Yasuei YONEOKA, Toshifumi SUZUKI, Daisaku TAKAHASHI, Daisuke KURAI, Jun SAKURAI, Masayuki YOSHIDA
  • Patent number: 10536042
    Abstract: An axial air gap type electric motor includes: a stator with stator cores in a ring shape around a rotating shaft and including a laminated iron core that is a prismatic body of metal plate-like members laminated in a radial direction of the rotating shaft, a tubular bobbin with an inner diameter into which the laminated iron core is inserted, and a coil wound on the extension of the outer diameter of the laminated iron core; and a rotor plane-facing the rotating shaft direction end section of the stator with a predetermined air gap interposed therebetween. The laminated iron core includes: a core member with continuously laminated metal plate-like members, the widths of which increase in a rotational direction of the rotating shaft from the center toward a radial direction; and a core member with continuously laminated metal plate-like members, the widths of which are substantially equal.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: January 14, 2020
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Toru Sakai, Daisaku Takahashi, Jun Sakurai, Shuuichi Takahashi, Hirooki Tokoi, Yukimasa Maeda
  • Patent number: 10454325
    Abstract: The present invention ensures reliability while reducing the size of an axial air gap rotating electric machine. An axial air gap rotating electric machine has: a stator comprising a plurality of core members arranged in a ring shape, said core members each having an iron core, a coil wound in an iron core outer periphery direction, and a bobbin disposed between the iron core and the coil; and a rotor plane-facing an end surface of the iron core via an air gap in a rotating shaft radial direction.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: October 22, 2019
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Shuuichi Takahashi, Hirooki Tokoi, Toru Sakai, Katsuyuki Yamazaki, Toshifumi Suzuki, Jun Sakurai, Tomonori Kawagoe, Daisaku Takahashi
  • Patent number: 10431722
    Abstract: A light emitting element includes: a semiconductor stack structure that includes a light emitting part, and a light receiving part that receives light propagating in a lateral direction through a semiconductor layer from the light emitting part, wherein the light emitting part and the light receiving part share a quantum layer; and a light reflection layer that covers ? or more of a lateral surface of the quantum layer in the light receiving part.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: October 1, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Junichiro Hayakawa, Akemi Murakami, Takashi Kondo, Naoki Jogan, Jun Sakurai
  • Publication number: 20190245418
    Abstract: This axial gap-type rotary electrical machine has: a stator in which a plurality of core units each configured from a core, a coil, and a bobbin are disposed, centered around a rotating shaft, in an annular shape along the inner circumferential surface of a housing; and a rotor that is face-to-face with a cross-sectional surface of the core through a predetermined gap in a radial direction of the rotating shaft. The bobbin is formed in a cylindrical shape, has flange parts extending a predetermined amount in the outer circumferential direction at the top and bottom of the cylindrical shape, is provided with notch sections on the tip part in the inner circumferential direction of the flange part of the bobbin, and forms an acute angle. In addition, approximately circular notch sections are formed on adjacent side surface portions of the bobbin in the outer circumferential direction of the bobbin.
    Type: Application
    Filed: January 31, 2017
    Publication date: August 8, 2019
    Inventors: Shuuichi TAKAHASHI, Yasuei YONEOKA, Toshifumi SUZUKI, Toru SAKAI, Katsuyuki YAMAZAKI, Daisaku TAKAHASHI, Daisuke KURAI, Jun SAKURAI
  • Patent number: 10348059
    Abstract: A light emitting element array includes plural semiconductor stacking structures and a light screening portion. The plural semiconductor stacking structures each include a light emitting portion and a light receiving portion that receives light propagated in a lateral direction via a semiconductor layer from the light emitting portion. The light screening portion is provided between the plural semiconductor stacking structures to screen light directed from the light emitting portion of one of the semiconductor stacking structures to the light receiving portion of another semiconductor stacking structure.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: July 9, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Junichiro Hayakawa, Akemi Murakami, Takashi Kondo, Naoki Jogan, Jun Sakurai
  • Publication number: 20190199158
    Abstract: A rotating electrical machine that comprises: a stator in which a plurality of core units that have a core and a coil are annularly arranged around a shaft center; a rotor that faces a flux end surface of the stator in the shaft-center direction with a prescribed gap therebetween; a housing that houses the stator and the rotor and has an outlet that guides a lead wire for the stator to the outside; and a resin that integrally molds the stator and an inner circumferential surface of the housing that includes the outlet. The inner diameter of the outlet becomes larger from the shaft-center side to the radial-direction outside. The outlet has an elastic member that keeps the resin from flowing to the outside of the housing. The elastic member has a hollow part through which the lead wire passes from the shaft-center side to the radial-direction outside. Pressure from a rotary-shaft radial direction seals between the hollow part and the lead wire.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 27, 2019
    Inventors: Shuuichi TAKAHASHI, Yasuei YONEOKA, Toshifumi SUZUKI, Toru SAKAI, Daisaku TAKAHASHI, Jun SAKURAI, Daisuke KURAI
  • Publication number: 20190157935
    Abstract: There is provided an axial gap rotary electric machine which includes a stator in which a plurality of core units, the core units having a core, a winding disposed in an outer periphery of the core, and a bobbin disposed between the core and the winding, are arranged in an annular shape about a rotation shaft, at least one rotor which faces an end surface of the core in an axial direction through a gap, a rotation shaft which rotates together with the rotor, and a housing in which the stator and the rotor are stored. A wiring fixing member is provided in an end surface and on an outer side of the stator in the axial direction, and includes an outer wall and an inner wall extending in a circumferential direction along a circumferential outer shape of the stator. The stator includes a crossover wire which leads the winding from the core unit. The crossover wire is disposed between the outer wall and the inner wall of the wiring fixing member.
    Type: Application
    Filed: January 27, 2017
    Publication date: May 23, 2019
    Inventors: Yasuei YONEOKA, Shuuichi TAKAHASHI, Toshifumi SUZUKI, Katsuyuki YAMAZAKI, Daisaku TAKAHASHI, Daisuke KURAI, Jun SAKURAI
  • Patent number: 10193010
    Abstract: A light emitting element includes: a light emitting part that is formed on a front surface side of a semi-insulating substrate; and a light receiving part that is formed on the front surface side, that shares a semiconductor layer with the light emitting part, and that receives light propagating in a lateral direction through the semiconductor layer from the light emitting part, wherein anode electrodes and cathode electrodes of the light emitting part and the light receiving part are formed on the front surface side in a state in which the anode electrodes are separated from each other and the cathode electrodes are separated from each other.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: January 29, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Naoki Jogan, Jun Sakurai, Akemi Murakami, Takashi Kondo, Junichiro Hayakawa
  • Publication number: 20190008623
    Abstract: The present invention provides a warp-knitted fabric and a medical material that can be simultaneously extended in all directions by causing thread made of a second bioabsorbable material to be absorbed in a living body over time and in which the degree of extension can be increased.
    Type: Application
    Filed: January 13, 2017
    Publication date: January 10, 2019
    Applicants: EDUCATIONAL FOUNDATION OF OSAKA MEDICAL AND PHARMACEUTICAL UNIVERSITY, TEIJIN LIMITED
    Inventors: Shintaro NEMOTO, Hideaki YAMADA, Jun SAKURAI, Kazuteru KOHNO, Masaya ITO, Atsuko ONISHI
  • Patent number: 10178736
    Abstract: A light emitting apparatus includes: a semiconductor layer including a light emitting region that generates modulation light modulated with a first signal, and a feedback region that is configured so that a feedback mode to feed back a part of light generated in the light emitting region to the light emitting region and a monitor mode to monitor a light amount of the light generated in the light emitting region are switchable; and a controller, wherein when the modulation light is generated in the light emitting region, the controller sets the feedback region to the feedback mode, and the controller switches the feedback region to the monitor mode during at least a part of a period in which there is no first signal.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: January 8, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Takashi Kondo, Junichiro Hayakawa, Naoki Jogan, Akemi Murakami, Jun Sakurai
  • Patent number: D852958
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: July 2, 2019
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Jun Sakurai, Katsuhiko Suzuki, Ichinobu Shimizu, Gouji Kamimura