Patents by Inventor Toru Ishii

Toru Ishii 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).

  • Publication number: 20210139072
    Abstract: Provided is a torque transmission joint that is able to suppress occurrence of noise when reversing the direction of rotation of the drive shaft. The first transmission member 17 fixed to the output shaft 12a which is a drive shaft is engaged with the first elastic member 20 in a state where the first gap in the circumferential direction is interposed, as well as with the intermediate transmission member 19 in a state where a gap in the circumferential direction which is larger than the first gap is interposed. The second transmission member 18 fixed to an end portion of the worm 8 is engaged with the second elastic member 21 in a state where the second gap in the circumferential direction is interposed, as well as with the intermediate transmission member 19 in a state where a gap in the circumferential direction which is larger than the second gap.
    Type: Application
    Filed: March 28, 2018
    Publication date: May 13, 2021
    Inventors: Toru Segawa, Ryou Oosawa, Toru Ishii, Ryota Sugihara, Takeshi Yamamoto, Akihide Fujita
  • Publication number: 20210135168
    Abstract: A foldable circular polarizing plate includes a polarizer and a foldable compensation film disposed on one surface of the polarizer, wherein in-plane retardations of the liquid crystal layer at 450 nm, 550 nm, and 650 nm wavelengths satisfy Relationship Equations 1 or 2, the compensation film is configured to absorb light in a wavelength region of less than or equal to 420 nm, and a reflection color in a CIE-Lab color coordinate system satisfies ?a*b*?5.0 and a foldable organic light emitting diode display including the same.
    Type: Application
    Filed: December 22, 2016
    Publication date: May 6, 2021
    Inventors: Tsuyoshi OHYAMA, Seung Hyun LEE, Hyun-Seok CHOI, Hidetoshi NAKATA, Toru ISHII
  • Publication number: 20210129902
    Abstract: Provided is a torque transmission joint that makes it possible to transmitting torque continuously between a pair of end section transmission members even when the torque transmission function of an intermediate transmission member is deteriorated. The torque transmission joint includes an intermediate transmission member 19, and a first transmission member 17 and a second transmission member 18 that are arranged with one each on both side sections in the axial direction of the intermediate transmission member 19, with the outer side sections in the radial direction of each engaging with the inside section in the radial direction of the intermediate transmission member 19. The first transmission member 17 and the second transmission member 18 have a first preliminary engagement section 63 and a second preliminary engagement section 66 at the end sections in the axial direction on sides close to each other.
    Type: Application
    Filed: July 23, 2018
    Publication date: May 6, 2021
    Inventors: YOSHIFUMI KUROKAWA, TORU SEGAWA, TORU ISHII
  • Patent number: 10982721
    Abstract: A first concave-convex portion of a first transmission member is engaged with an intermediate concave-convex portion of an intermediate transmission member with a circumferential gap being therebetween. A second concave-convex portion of a second transmission member is engaged with the intermediate concave-convex portion with a circumferential gap being therebetween. A first elastic member and a second elastic member are engaged with a first engagement portion and a second engagement portion of the intermediate transmission member such that separation between the intermediate transmission member and the first elastic member and the second elastic member can be prevented.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: April 20, 2021
    Assignee: NSK LTD.
    Inventors: Ryou Oosawa, Toru Segawa, Toru Ishii
  • Patent number: 10976683
    Abstract: Provided is an electrophotographic member in which density unevenness of an image is less likely to occur even in the case of outputting an image after standing in a high-temperature and high-humidity environment for a long period of time. The electrophotographic member includes: an electroconductive substrate; an electroconductive elastic layer on or above the substrate; and an insulating portion on the elastic layer, an outer surface of the electrophotographic member being composed of an outer surface of the insulating portion and an outer surface of the elastic layer that is not covered with the insulating portion, wherein the elastic layer contains a urethane resin as a first resin, and the elastic layer has a region from the outer surface of the elastic layer constituting the outer surface of the electrophotographic member to a depth of 1 ?m, the region further containing a second resin.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: April 13, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kazutoshi Ishida, Yuji Sakurai, Minoru Nakamura, Ryo Sugiyama, Toru Ishii, Kenta Matsunaga
  • Patent number: 10942471
    Abstract: The electrophotographic member includes: an electroconductive substrate; and a surface layer having a mono-layer structure, wherein the surface layer has a matrix containing a cross-linked urethane resin as a binder, and when an elastic modulus of the matrix in a first region in a thickness direction from an outer surface of the surface layer to a depth of 0.1 ?m from the outer surface of the surface layer is defined as E1, and an elastic modulus of the matrix in a second region in a thickness direction from a depth of 1.0 ?m from the outer surface of the surface layer to 1.1 ?m from the outer surface of the surface layer is defined as E2, E1 and E2 satisfy the following Expressions (1) and (2), respectively: E1?200 MPa??(1); and 10 MPa?E2?100 MPa??(2).
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: March 9, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yoshinobu Ogawa, Ryo Sugiyama, Kazuaki Nagaoka, Kenta Matsunaga, Toru Ishii, Hideya Arimura, Fumihiko Utsuno, Tomoya Uesugi, Wataru Moriai, Masashi Uno
  • Publication number: 20200310283
    Abstract: The electrophotographic member includes: an electroconductive substrate; and a surface layer having a mono-layer structure, wherein the surface layer has a matrix containing a cross-linked urethane resin as a binder, and when an elastic modulus of the matrix in a first region in a thickness direction from an outer surface of the surface layer to a depth of 0.1 ?m from the outer surface of the surface layer is defined as E1, and an elastic modulus of the matrix in a second region in a thickness direction from a depth of 1.0 ?m from the outer surface of the surface layer to 1.1 ?m from the outer surface of the surface layer is defined as E2, E1 and E2 satisfy the following Expressions (1) and (2), respectively: E1?200 MPa??(1); and 10 MPa?E2?100 MPa??(2).
    Type: Application
    Filed: March 17, 2020
    Publication date: October 1, 2020
    Inventors: Yoshinobu Ogawa, Ryo Sugiyama, Kazuaki Nagaoka, Kenta Matsunaga, Toru Ishii, Hideya Arimura, Fumihiko Utsuno, Tomoya Uesugi, Wataru Moriai, Masashi Uno
  • Patent number: 10732538
    Abstract: The developing member has an electroconductive substrate, and an elastic layer having a mono-layer structure on the substrate as a surface layer, wherein the elastic layer has a thickness of T ?m and a volume resistivity of 1.0×105 ?·cm to 1.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: August 4, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Wataru Moriai, Minoru Nakamura, Toru Ishii, Kazutoshi Ishida
  • Publication number: 20200232090
    Abstract: A substrate processing device and a processing system process substrates each having a magnetic layer individually and are provided with: a support unit for supporting a substrate; a heating unit for heating the substrate supported on the support unit; a cooling unit for cooling the substrate supported on the support unit; a magnet unit for generating a magnetic field; and a processing chamber accommodating the support unit, the heating unit, and the cooling unit. The magnet unit includes a first and a second end surface which extend in parallel. The first and the second end surface are opposite to each other while being spaced apart from each other. The first end surface corresponds to a first magnetic pole of the magnet unit. The second end surface corresponds to a second magnetic pole of the magnet unit. The processing chamber is disposed between the first and the second end surface.
    Type: Application
    Filed: February 21, 2018
    Publication date: July 23, 2020
    Inventors: Hiroki MAEHARA, Naoki WATANABE, Toru ISHII, Kanto NAKAMURA, Makoto SAITO, David HURLEY, Ian COLGAN
  • Publication number: 20200166866
    Abstract: The developing member has an electroconductive substrate, and an elastic layer having a mono-layer structure on the substrate as a surface layer, wherein the elastic layer has a thickness of T ?m and a volume resistivity of 1.0×105 ?·cm to 1.
    Type: Application
    Filed: November 4, 2019
    Publication date: May 28, 2020
    Inventors: Wataru Moriai, Minoru Nakamura, Toru Ishii, Kazutoshi Ishida
  • Patent number: 10619718
    Abstract: There is provided a method of assembling a worm reducer, which includes causing a worm wheel to be rotatably supported in a wheel accommodation part, externally fitting a pair of bearings at tip-side and base-side positions of a worm, inserting the worm into a worm accommodation part from an opening side thereof at a state where the worm is offset outward in a radial direction of the worm wheel with respect to a center axis of the worm accommodation part, causing the bearing which is externally fitted to a leading side in an insertion direction of the worm to pass an outer diameter-side of a part of an outer peripheral edge of the worm wheel, which protrudes most into the worm accommodation part, causing the worm teeth to mesh with the worm wheel, and further inserting the worm to a predetermined position in the worm accommodation part.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: April 14, 2020
    Assignee: NSK LTD.
    Inventors: Toru Segawa, Toru Ishii
  • Publication number: 20200041926
    Abstract: Provided is an electrophotographic member in which density unevenness of an image is less likely to occur even in the case of outputting an image after standing in a high-temperature and high-humidity environment for a long period of time. The electrophotographic member includes: an electroconductive substrate; an electroconductive elastic layer on or above the substrate; and an insulating portion on the elastic layer, an outer surface of the electrophotographic member being composed of an outer surface of the insulating portion and an outer surface of the elastic layer that is not covered with the insulating portion, wherein the elastic layer contains a urethane resin as a first resin, and the elastic layer has a region from the outer surface of the elastic layer constituting the outer surface of the electrophotographic member to a depth of 1 ?m, the region further containing a second resin.
    Type: Application
    Filed: July 19, 2019
    Publication date: February 6, 2020
    Inventors: Kazutoshi Ishida, Yuji Sakurai, Minoru Nakamura, Ryo Sugiyama, Toru Ishii, Kenta Matsunaga
  • Patent number: 10539714
    Abstract: A retardation plate is formed by laminating at least two retardation plates of a retardation plate 1 and a retardation plate 2, in which at least one of the retardation plate 1 and the retardation plate 2 is formed of a polymer of a polymerizable liquid crystal composition. It is possible to provide a retardation plate imparting a phase difference of ¼ wavelength over a wide wavelength region, a circularly polarizing plate having excellent anti-reflection performance over a wide wavelength region, and a display element or a light-emitting element having excellent visibility.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: January 21, 2020
    Assignee: DIC CORPORATION
    Inventors: Toru Ishii, Yoshiyuki Ono
  • Patent number: 10539891
    Abstract: There is provided an electrophotographic member which suppresses scraping and contamination of a surface even in the durable use of multiple sheet printing under a high temperature environment. The electrophotographic member has an electroconductive substrate and a single elastic layer as a surface layer, the surface layer includes a binder resin and carbon black dispersed in the binder resin, the carbon black has a volatile content of 0.4% or more, the binder resin includes a crosslinked urethane resin and a crosslinked acrylic resin, and the surface layer has a first area in which the crosslinked urethane resin and the crosslinked acrylic resin form an interpenetrating polymer network structure, the first area being from an outer surface of the surface layer to a depth of 0.1 ?m in the surface layer.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: January 21, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Toru Ishii, Kazutoshi Ishida, Wataru Moriai
  • Publication number: 20200004170
    Abstract: There is provided an electrophotographic member which suppresses scraping and contamination of a surface even in the durable use of multiple sheet printing under a high temperature environment. The electrophotographic member has an electroconductive substrate and a single elastic layer as a surface layer, the surface layer includes a binder resin and carbon black dispersed in the binder resin, the carbon black has a volatile content of 0.4% or more, the binder resin includes a crosslinked urethane resin and a crosslinked acrylic resin, and the surface layer has a first area in which the crosslinked urethane resin and the crosslinked acrylic resin form an interpenetrating polymer network structure, the first area being from an outer surface of the surface layer to a depth of 0.1 ?m in the surface layer.
    Type: Application
    Filed: June 7, 2019
    Publication date: January 2, 2020
    Inventors: Toru Ishii, Kazutoshi Ishida, Wataru Moriai
  • Publication number: 20190371506
    Abstract: An apparatus for magnetic annealing one or more workpieces, and a method of operating the apparatus, are described. The apparatus includes: a workpiece holder configured to support one or more workpieces, wherein the one or more workpieces having at least one substantially planar surface; an optional workpiece heating system configured to elevate the one or more workpieces to an anneal temperature; and a magnet assembly having a first magnet and a second magnet, the first and second magnets defining a gap between opposing poles of each magnet, wherein the magnet assembly is arranged to generate a magnetic field substantially perpendicular to the planar surface of the one or more workpieces.
    Type: Application
    Filed: January 3, 2018
    Publication date: December 5, 2019
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Ian COLGAN, Ioan DOMSA, George EYRES, Toru ISHII, Makoto SAITO, David HURLEY, Noel O'SHAUGHNESSY, Barry CLARKE, Jattie VAN DER LINDE, Pat HUGHES
  • Patent number: 10479844
    Abstract: The present invention provides a polymerizable composition containing a specific polymerizable compound and a fluorosurfactant having a specific polyoxyalkylene skeleton and having specific molecular weight. The invention also provides an optically anisotropic body, a retardation film, an antireflective film, and a liquid crystal display device that are produced using the polymerizable composition of the present invention. The present invention is useful because, when an optically anisotropic body is produced by photo-polymerization of the polymerizable composition, three features including the leveling properties of the surface of the optically anisotropic body, offset onto the substrate, and liquid crystal alignment can be improved simultaneously.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: November 19, 2019
    Assignee: DIC CORPORATION
    Inventors: Kouichi Endo, Toru Ishii, Yasuhiro Kuwana, Kazuaki Hatsusaka, Mika Yamamoto
  • Publication number: 20190264751
    Abstract: A first concave-convex portion of a first transmission member is engaged with an intermediate concave-convex portion of an intermediate transmission member with a circumferential gap being therebetween. A second concave-convex portion of a second transmission member is engaged with the intermediate concave-convex portion with a circumferential gap being therebetween. A first elastic member and a second elastic member are engaged with a first engagement portion and a second engagement portion of the intermediate transmission member such that separation between the intermediate transmission member and the first elastic member and the second elastic member can be prevented.
    Type: Application
    Filed: October 12, 2017
    Publication date: August 29, 2019
    Applicant: NSK LTD.
    Inventors: Ryou OOSAWA, Toru SEGAWA, Toru ISHII
  • Patent number: 10370024
    Abstract: There is provided a torque transmission joint configured to transmit torque between end portions of a driving shaft and a driven shaft arranged in series in an axial direction. An outer-diameter-side concave-convex portion is formed on an inner periphery of one shaft of the driving shaft and the driven shaft or a member fixed to the one shaft, an inner-diameter-side concave-convex portion is formed on an outer periphery of the other shaft or a member fixed to the other shaft, and the outer-diameter-side concave-convex portion and the inner-diameter-side concave-convex portion are engaged with a circumferential gap being interposed therebetween. An elastic member is provided between the end portion of the driving shaft and the end portion of the driven shaft either directly or via another member such that torque can be transmitted between the driving shaft and the driven shaft.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: August 6, 2019
    Assignee: NSK LTD.
    Inventor: Toru Ishii
  • Publication number: 20190234505
    Abstract: A worm reducer includes: a housing including a wheel accommodating portion, and a worm accommodating portion; a worm wheel including wheel teeth disposed on an outer circumferential surface and rotatably supported inside the wheel accommodating portion; and a worm including worm teeth disposed on an outer circumferential surface to mesh with the wheel teeth and rotatably supported inside the worm accommodating portion, wherein a proximal end portion of the worm is connected to a drive shaft such that torque can be transmitted. An inner circumferential surface of the worm accommodating portion includes a housing side step surface which faces a proximal end side in an axial direction of the worm. An outer circumferential surface of the worm includes a worm side step surface which closely faces the housing side step surface in the axial direction at a portion axially deviated from a portion where the worm teeth are disposed.
    Type: Application
    Filed: September 20, 2017
    Publication date: August 1, 2019
    Applicant: NSK LTD.
    Inventors: Toru ISHII, Toru SEGAWA