Patents by Inventor Yukihiro Hayashi

Yukihiro Hayashi 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: 20190302284
    Abstract: A scintillator array comprises: a first scintillator element; a second scintillator element; and a reflector provided between the first and second scintillator elements and having a width of 80 gm or less therebetween. Each scintillator element includes a polycrystal containing a rare earth oxysulfide phosphor, the polycrystal having a radiation incident surface of 1 mm or less×1 mm or less in area. An average crystal grain diameter of the polycrystal is not less than 5 ?m nor more than 30 ?m, the average crystal grain diameter being defined by an average intercept length of crystal grains in an observation image of the polycrystal with a scanning electron microscope. A maximum length or a maximum diameter of defects on the polycrystal is 40 ?m or less.
    Type: Application
    Filed: June 3, 2019
    Publication date: October 3, 2019
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.
    Inventors: Makoto HAYASHI, Hiroyasu Kondo, Hiroshi Ichikawa, Yoshitaka Adachi, Yukihiro Fukuta
  • Publication number: 20190259414
    Abstract: A correction method includes a correction process for correcting warping of a plate-like workpiece including a frame portion and a plurality of flexure elements formed within the frame portion. The correction process includes arranging a first clean sheet on an elastic mat having a flat upper surface, supplying the plate-like workpiece on the first clean sheet, overlaying a second clean sheet from above the first clean sheet and the plate-like workpiece, lowering a pressure roller toward the elastic mat from above the second clean sheet, sandwiching the plate-like workpiece between the elastic mat and the pressure roller, moving the pressure roller along an upper surface of the elastic mat while having the plate-like workpiece sandwiched between the elastic mat and the pressure roller, and taking out the plate-like workpiece from the first clean sheet.
    Type: Application
    Filed: May 1, 2019
    Publication date: August 22, 2019
    Applicant: NHK SPRING CO., LTD.
    Inventors: Hiroyoshi UETAKE, Yukihiro HAYASHI
  • Patent number: 10332551
    Abstract: A warp correction apparatus includes an elastic mat, a first sheet supply unit which supplies a first clean sheet on the elastic mat, a workpiece holding mechanism which supplies the plate-like workpiece (a frame unit) on the first clean sheet, a second sheet supply unit which supplies a second clean sheet above the first clean sheet, a pressure roller, a first elevator unit which moves the second clean sheet up and down, a second elevator unit which presses the pressure roller toward the elastic mat, and a roller moving mechanism. The pressure roller is moved along an upper surface of the elastic mat by the roller moving mechanism while the frame unit is sandwiched between the elastic mat and the pressure roller.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: June 25, 2019
    Assignee: NHK SPRING CO., LTD.
    Inventors: Hiroyoshi Uetake, Yukihiro Hayashi
  • Publication number: 20180216586
    Abstract: A sleeve structure comprises a plurality of sleeve main bodies fitted respectively into intake ports of a cylinder head of a multi-cylinder internal combustion engine and a shared base provided on one end of the plurality of sleeve main bodies. By fixing this sleeve structure to the cylinder head, an amount of labor involved in a fixing operation for fixing sleeves to a cylinder head is reduced.
    Type: Application
    Filed: June 2, 2015
    Publication date: August 2, 2018
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Hironao Netsu, Takuya Taniguchi, Yukihiro Hayashi
  • Patent number: 9989214
    Abstract: A light emitting device wherein discoloration of a reflective layer in an optical component can be prevented and a stable optical output power can be maintained, and a method of manufacturing an optical component used in the light emitting device. The optical component includes a supporting member defining a through-hole, a reflective layer formed on an inner wall defining the through-hole, a protective layer formed on the reflective layer, and a light transmissive member having a light incident surface, a light emitting surface, and an outer circumference side-surface, and disposed in the through hole. The light transmissive member is fixed in the through-hole with a joining portion where the outer circumference side-surface and the protective layer are joined, and an end portion at the light emitting side of the joining portion is covered with a second protective layer disposed continuously on the protective layer and the light transmissive member.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: June 5, 2018
    Assignee: NICHIA CORPORATION
    Inventors: Yukihiro Hayashi, Naoto Morizumi, Takeshi Okada
  • Patent number: 9991672
    Abstract: The light emitting device according to the present invention comprises a laser diode; a wavelength converting member which is configured to convert a wavelength of a light emitted from the laser diode; and a support member which is configured to support the wavelength converting member so that the light passes through two surfaces of the wavelength converting member. The wavelength converting member comprises a fluorescent material and a binder. At least one light transmissive member is disposed on at least one of these two surfaces of the wavelength converting member. The binder has a melting point higher than a melting point of the light transmissive member. The light transmissive member is fixed to the support member by fusion bonding.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: June 5, 2018
    Assignee: NICHIA CORPORATION
    Inventors: Naoto Morizumi, Yukihiro Hayashi
  • Publication number: 20170063033
    Abstract: The light emitting device according to the present invention comprises a laser diode; a wavelength converting member which is configured to convert a wavelength of a light emitted from the laser diode; and a support member which is configured to support the wavelength converting member so that the light passes through two surfaces of the wavelength converting member. The wavelength converting member comprises a fluorescent material and a binder. At least one light transmissive member is disposed on at least one of these two surfaces of the wavelength converting member. The binder has a melting point higher than a melting point of the light transmissive member. The light transmissive member is fixed to the support member by fusion bonding.
    Type: Application
    Filed: November 15, 2016
    Publication date: March 2, 2017
    Applicant: NICHIA CORPORATION
    Inventors: Naoto MORIZUMI, Yukihiro HAYASHI
  • Publication number: 20170009958
    Abstract: A light emitting device wherein discoloration of a reflective layer in an optical component can be prevented and a stable optical output power can be maintained, and a method of manufacturing an optical component used in the light emitting device. The optical component includes a supporting member defining a through-hole, a reflective layer formed on an inner wall defining the through-hole, a protective layer formed on the reflective layer, and a light transmissive member having a light incident surface, a light emitting surface, and an outer circumference side-surface, and disposed in the through hole. The light transmissive member is fixed in the through-hole with a joining portion where the outer circumference side-surface and the protective layer are joined, and an end portion at the light emitting side of the joining portion is covered with a second protective layer disposed continuously on the protective layer and the light transmissive member.
    Type: Application
    Filed: September 21, 2016
    Publication date: January 12, 2017
    Applicant: NICHIA CORPORATION
    Inventors: Yukihiro HAYASHI, Naoto MORIZUMI, Takeshi OKADA
  • Patent number: 9529134
    Abstract: The light emitting device according to the present invention comprises a laser diode; a wavelength converting member which is configured to convert a wavelength of a light emitted from the laser diode; and a support member which is configured to support the wavelength converting member so that the light passes through two surfaces of the wavelength converting member. The wavelength converting member comprises a fluorescent material and a binder. At least one light transmissive member is disposed on at least one of these two surfaces of the wavelength converting member. The binder has a melting point higher than a melting point of the light transmissive member. The light transmissive member is fixed to the support member by fusion bonding.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: December 27, 2016
    Assignee: NICHIA CORPORATION
    Inventors: Naoto Morizumi, Yukihiro Hayashi
  • Patent number: 9488332
    Abstract: A light emitting device wherein discoloration of a reflective layer in an optical component can be prevented and a stable optical output power can be maintained, and a method of manufacturing an optical component used in the light emitting device. The optical component includes a supporting member defining a through-hole, a reflective layer formed on an inner wall defining the through-hole, a protective layer formed on the reflective layer, and a light transmissive member having a light incident surface, a light emitting surface, and an outer circumference side-surface, and disposed in the through hole. The light transmissive member is fixed in the through-hole with a joining portion where the outer circumference side-surface and the protective layer are joined, and an end portion at the light emitting side of the joining portion is covered with a second protective layer disposed continuously on the protective layer and the light transmissive member.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: November 8, 2016
    Assignee: NICHIA CORPORATION
    Inventors: Yukihiro Hayashi, Naoto Morizumi, Takeshi Okada
  • Publication number: 20160125918
    Abstract: A warp correction apparatus includes an elastic mat, a first sheet supply unit which supplies a first clean sheet on the elastic mat, a workpiece holding mechanism which supplies the plate-like workpiece (a frame unit) on the first clean sheet, a second sheet supply unit which supplies a second clean sheet above the first clean sheet, a pressure roller, a first elevator unit which moves the second clean sheet up and down, a second elevator unit which presses the pressure roller toward the elastic mat, and a roller moving mechanism. The pressure roller is moved along an upper surface of the elastic mat by the roller moving mechanism while the frame unit is sandwiched between the elastic mat and the pressure roller.
    Type: Application
    Filed: September 29, 2015
    Publication date: May 5, 2016
    Applicant: NHK SPRING CO., LTD.
    Inventors: Hiroyoshi UETAKE, Yukihiro HAYASHI
  • Patent number: 8955666
    Abstract: A workpiece feeder includes a forward stage that separates base plates from one another and adjusts the base plates into correct top-bottom orientation and a pickup unit that individually holds the separated and adjusted base plates and horizontally aligns the held base plate into correct planar posture while feeding the held base plate to a destination. The forward stage includes a stage body that has a stage surface on which the base plates are placed and is movably supported so as to shift the stage surface and a drive unit that applies separate impacts to the stage body so that the stage body moves to apply a bouncing force and a shifting force orthogonal to the bouncing force due to the separate impacts to the base plates.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: February 17, 2015
    Assignee: NHK Spring Co., Ltd.
    Inventors: Kazumasa Nakajima, Yukihiro Hayashi
  • Publication number: 20150009703
    Abstract: The light emitting device according to the present invention comprises a laser diode; a wavelength converting member which is configured to convert a wavelength of a light emitted from the laser diode; and a support member which is configured to support the wavelength converting member so that the light passes through two surfaces of the wavelength converting member. The wavelength converting member comprises a fluorescent material and a binder. At least one light transmissive member is disposed on at least one of these two surfaces of the wavelength converting member. The binder has a melting point higher than a melting point of the light transmissive member. The light transmissive member is fixed to the support member by fusion bonding.
    Type: Application
    Filed: July 1, 2014
    Publication date: January 8, 2015
    Inventors: Naoto MORIZUMI, Yukihiro HAYASHI
  • Patent number: 8872203
    Abstract: In a semiconductor light-emitting device, light from a laser diode is output to the outside after the luminance of the light being enhanced. It includes a support body provided with lead terminals, one or more laser diodes mounted on the support body, a cylindrical reflector fixed to the support body to surround the laser diode(s) and provided with a light reflection surface formed on an inner surface thereof, and a cap placed to cover an opening distal end face of the reflector and held at an opening distal end part of the reflector, the cap being provided at a central part thereof with a solid fluorescent member including a fluorescent substance that is excited by the light from the laser diode and emits light different in colors from light emitted by the laser diode.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: October 28, 2014
    Assignee: Nichia Corporation
    Inventors: Shinichi Nagahama, Atsutomo Hama, Takafumi Sugiyama, Yukihiro Hayashi, Naoto Morizumi, Yoshinori Murazaki
  • Publication number: 20140160759
    Abstract: A light emitting device wherein discoloration of a reflective layer in an optical component can be prevented and a stable optical output power can be maintained, and a method of manufacturing an optical component used in the light emitting device. The optical component includes a supporting member defining a through-hole, a reflective layer formed on an inner wall defining the through-hole, a protective layer formed on the reflective layer, and a light transmissive member having a light incident surface, a light emitting surface, and an outer circumference side-surface, and disposed in the through hole. The light transmissive member is fixed in the through-hole with a joining portion where the outer circumference side-surface and the protective layer are joined, and an end portion at the light emitting side of the joining portion is covered with a second protective layer disposed continuously on the protective layer and the light transmissive member.
    Type: Application
    Filed: December 6, 2013
    Publication date: June 12, 2014
    Applicant: NICHIA CORPORATION
    Inventors: Yukihiro HAYASHI, Naoto MORIZUMI, Takeshi OKADA
  • Publication number: 20120261232
    Abstract: A workpiece feeder includes a forward stage that separates base plates from one another and adjusts the base plates into correct top-bottom orientation and a pickup unit that individually holds the separated and adjusted base plates and horizontally aligns the held base plate into correct planar posture while feeding the held base plate to a destination. The forward stage includes a stage body that has a stage surface on which the base plates are placed and is movably supported so as to shift the stage surface and a drive unit that applies separate impacts to the stage body so that the stage body moves to apply a bouncing force and a shifting force orthogonal to the bouncing force due to the separate impacts to the base plates.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 18, 2012
    Applicant: NHK SPRING CO., LTD.
    Inventors: Kazumasa Nakajima, Yukihiro Hayashi
  • Patent number: 8197111
    Abstract: A light emitting device includes an excitation light source that emits excitation light, a wavelength conversion member, a light guide, and a light guide distal end member. The wavelength conversion member absorbs the excitation light emitted from the excitation light source, converts its wavelength, and releases light of a predetermined wavelength band. The light guide in which the center part (core) of its cross section has a refractive index that is higher than the refractive index of the peripheral portion (cladding) guides the excitation light emitted from the excitation light source to the wavelength conversion member. The light guide distal end member supports a distal end of the light guide on the wavelength conversion member side. The light guide distal end member is formed from a material that reflects the excitation light and/or the light that has undergone wavelength conversion.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: June 12, 2012
    Assignee: Nichia Corporation
    Inventors: Atsutomo Hama, Tomotaka Honda, Shinichi Nagahama, Junji Takeichi, Yoshinori Murazaki, Hiroto Tamaki, Yukihiro Hayashi
  • Publication number: 20110154186
    Abstract: A method of rendering a page, which includes starting obtaining operation for obtaining a page made by a markup language, performing a text browsing mode operation on obtained part of data of the page in parallel with the obtaining operation of the page, judging whether or not acquisition of definition information which is information to be applied to the entire page so as to render the page as designated by a markup language document of the page is finished, and switching onscreen representation, depending on a result of the judging, from onscreen representation in a text browsing mode to onscreen representation in which the definition information is applied.
    Type: Application
    Filed: March 4, 2011
    Publication date: June 23, 2011
    Applicant: ACCESS CO., LTD.
    Inventors: Michimasa UEMATSU, Takao Sekine, Yukihiro Hayashi, Takuya Harakawa, Shinji Yamabuchi
  • Patent number: 7917847
    Abstract: A method of rendering a page, which includes starting obtaining operation for obtaining a page made by a markup language, performing a text browsing mode operation on obtained part of data of the page in parallel with the obtaining operation of the page, judging whether or not acquisition of definition information which is information to be applied to the entire page so as to render the page as designated by a markup language document of the page is finished, and switching onscreen representation, depending on a result of the judging, from onscreen representation in a text browsing mode to onscreen representation in which the definition information is applied.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: March 29, 2011
    Assignee: Access Co., Ltd.
    Inventors: Michimasa Uematsu, Takao Sekine, Yukihiro Hayashi, Takuya Harakawa, Shinji Yamabuchi
  • Patent number: 7878696
    Abstract: An optical component that can be attached to an end portion of an optical guiding member, and a light converting member used in the optical component. The optical component comprises a cap having an engaging portion defining a bore engaged with an end member of a light guiding member, and an arranging portion defining a opening connected to the bore in the engaging portion, and a light converting member disposed in the opening formed in the arranging portion.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: February 1, 2011
    Assignee: Nichia Corporation
    Inventors: Atsutomo Hama, Yoshinori Murazaki, Takafumi Sugiyama, Yukihiro Hayashi, Naoto Morizumi