Patents by Inventor Yasunori Sakai

Yasunori Sakai 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: 11850687
    Abstract: Provided is a metal laminating and modeling method including sequentially carrying out a step of laminating metal layer to form a modeled article, in which the step of laminating a metal layers includes a step of forming blocking beads that are continuous along the outer peripheral shape of the modeled article by arc welding on at least one end portion in the width direction of a target surface, on which the metal layers are to be formed, and a step of forming inner beads by arc welding with a current higher than the current in the step of forming blocking beads so as to fill a space on the inside of the blocking beads in the width direction of the target surface.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: December 26, 2023
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventor: Yasunori Sakai
  • Publication number: 20230110900
    Abstract: A laminate shaping method includes: a unit step repeatedly performed, the unit step including a step of forming a laminate shaped portion by laminating metal layers formed of weld beads, and a step of forming a processed side surface by cutting a shaped portion side surface facing a second direction intersecting a first direction, in which, in the step of forming the processed side surface, the shaped portion side surface is cut so that a receiving portion projecting in the second direction with respect to the processed side surface is formed at an uppermost layer of the laminate shaped portion in the first direction, and when the unit step is repeated, in the step of forming the laminate shaped portion, a new metal layer is laminated so as to overlap an upper surface of the receiving portion in the first direction.
    Type: Application
    Filed: October 5, 2022
    Publication date: April 13, 2023
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Yasunori Sakai, Daisuke Yamauchi, Naoya Hayashida
  • Patent number: 11484934
    Abstract: A manufacturing method of a casing, the manufacturing method includes a step of manufacturing a plurality of metal members which are components constituting the casing including a casing body having a tubular shape that extends with an axis as a center; a step of arranging the plurality of metal members according to the casing to be formed; and a step of forming the casing by welding the plurality of metal members to each other, in which in the step of manufacturing the metal members, the plurality of metal members are manufactured by at least two kinds of manufacturing methods among forging, steel plate processing, casting, and a fused metal deposition method.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: November 1, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Yasunori Sakai, Toshiyuki Yamamori, Makio Morimoto
  • Patent number: 11400536
    Abstract: In a metal laminating and modeling method, a three-dimensional modeled object 10 having a main surface 12 and an outer circumferential surface 13 is modeled by sequentially laminating a plurality of metal layers 11m. The metal laminating and modeling method has a metal layer formation step of forming the metal layers 11m by forming a plurality of weld beads 100 so as to be arranged in a horizontal direction on a table 2, and a first end portion weld bead formation step of inclining the table 2 such that a target surface 2f faces in a first inclination direction and forming first end portion weld beads 100a so as to overlap, among a plurality of center weld beads 100c, the center weld beads 100c located at an uppermost end in a vertical direction Dv.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: August 2, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventor: Yasunori Sakai
  • Patent number: 11278999
    Abstract: A manufacturing method of an impeller, the manufacturing method includes: a step of forming an impeller shaped body in which a disc component part constituting a part of the disc, a blade component part constituting a part of the blade, and a cover component part constituting a part of the cover are integrated by laminating a metal layer to extend toward an outer side in a radial direction with respect to the axis by an additive manufacturing method using a metal powder; and a step of grinding the impeller shaped body, in which the steps are repeated a plurality of times, and the step of grinding the impeller shaped body includes a step of polishing an inner surface of the impeller shaped body constituting a part of the flow path.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: March 22, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventor: Yasunori Sakai
  • Publication number: 20210299812
    Abstract: A manufacturing method of an impeller, the manufacturing method includes: a step of forming an impeller shaped body in which a disc component part constituting a part of the disc, a blade component part constituting a part of the blade, and a cover component part constituting a part of the cover are integrated by laminating a metal layer to extend toward an outer side in a radial direction with respect to the axis by an additive manufacturing method using a metal powder; and a step of grinding the impeller shaped body, in which the steps are repeated a plurality of times, and the step of grinding the impeller shaped body includes a step of polishing an inner surface of the impeller shaped body constituting a part of the flow path.
    Type: Application
    Filed: March 18, 2021
    Publication date: September 30, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventor: Yasunori Sakai
  • Publication number: 20210260646
    Abstract: A manufacturing method of a casing, the manufacturing method includes a step of manufacturing a plurality of metal members which are components constituting the casing including a casing body having a tubular shape that extends with an axis as a center; a step of arranging the plurality of metal members according to the casing to be formed; and a step of forming the casing by welding the plurality of metal members to each other, in which in the step of manufacturing the metal members, the plurality of metal members are manufactured by at least two kinds of manufacturing methods among forging, steel plate processing, casting, and a fused metal deposition method.
    Type: Application
    Filed: February 19, 2021
    Publication date: August 26, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Yasunori Sakai, Toshiyuki Yamamori, Makio Morimoto
  • Publication number: 20210260681
    Abstract: A metal laminating and modeling method includes a first inclination angle modeling step including a first inclination step of setting a table on which the metal layers are to be formed at a first table inclination angle and setting a welding torch at a first torch inclination angle and a first welding step of forming a weld bead that becomes a part of the modeled object by arc welding with the welding torch and a second inclination angle modeling step including a second inclination step of inclining the table at a second table inclination angle that is larger than the first table inclination angle and setting the welding torch at a second torch inclination angle and a second welding step of forming the weld bead.
    Type: Application
    Filed: February 18, 2021
    Publication date: August 26, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventor: Yasunori Sakai
  • Patent number: 10994355
    Abstract: A metal laminating and molding method molds a 3-dimensional molded object formed by sequentially laminating a plurality of metal layers. The metal laminating and molding method is accomplished by repeatedly performing a unit process including a metal layer laminating process of laminating the metal layer constituted by welding beads formed through arc welding and a removal process of removing impurities from a surface of the metal layer laminated in the metal layer laminating process. When the unit process is repeated, the metal layer laminating process is performed again such that a new metal layer is laminated on the surface of the metal layer from which impurities have been removed in the removal process.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: May 4, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Yasunori Sakai, Kosei Kawahara
  • Publication number: 20210094113
    Abstract: Provided is a metal laminating and modeling method including sequentially carrying out a step of laminating metal layer to form a modeled article, in which the step of laminating a metal layers includes a step of forming blocking beads that are continuous along the outer peripheral shape of the modeled article by arc welding on at least one end portion in the width direction of a target surface, on which the metal layers are to be formed, and a step of forming inner beads by arc welding with a current higher than the current in the step of forming blocking beads so as to fill a space on the inside of the blocking beads in the width direction of the target surface.
    Type: Application
    Filed: September 16, 2020
    Publication date: April 1, 2021
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventor: Yasunori Sakai
  • Publication number: 20200324357
    Abstract: In a metal laminating and modeling method, a three-dimensional modeled object 10 having a main surface 12 and an outer circumferential surface 13 is modeled by sequentially laminating a plurality of metal layers 11m. The metal laminating and modeling method has a metal layer formation step of forming the metal layers 11m by forming a plurality of weld beads 100 so as to be arranged in a horizontal direction on a table 2, and a first end portion weld bead formation step of inclining the table 2 such that a target surface 2f faces in a first inclination direction and forming first end portion weld beads 100a so as to overlap, among a plurality of center weld beads 100c, the center weld beads 100c located at an uppermost end in a vertical direction Dv.
    Type: Application
    Filed: April 8, 2020
    Publication date: October 15, 2020
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventor: Yasunori Sakai
  • Publication number: 20190134732
    Abstract: A metal laminating and molding method molds a 3-dimensional molded object formed by sequentially laminating a plurality of metal layers. The metal laminating and molding method is accomplished by repeatedly performing a unit process including a metal layer laminating process of laminating the metal layer constituted by welding beads formed through arc welding and a removal process of removing impurities from a surface of the metal layer laminated in the metal layer laminating process. When the unit process is repeated, the metal layer laminating process is performed again such that a new metal layer is laminated on the surface of the metal layer from which impurities have been removed in the removal process.
    Type: Application
    Filed: September 24, 2018
    Publication date: May 9, 2019
    Applicant: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Yasunori Sakai, Kosei Kawahara
  • Patent number: 9563728
    Abstract: A system, method and non-transitory computer-readable medium utilize an equivalent circuit model in which electrostatic capacitance changes in response to an arbitrary DC bias voltage applied to a capacitor from the outside. The equivalent circuit model includes a capacitor equivalent circuit section composed of a base circuit and a multistage circuit, a reference current generator section that calculates a reference current, a multiplying factor generator section that calculates a multiplying factor, and a current source current generator section that generates a current of the current source based on the reference current and the multiplying factor. The multiplying factor generator section generates a voltage of an nth-degree polynomial corresponding to the DC bias voltage when applying the DC bias voltage, and defines a current to be generated when the generated voltage is applied to a resistance as the multiplying factor.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: February 7, 2017
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Yasunori Sakai
  • Publication number: 20140012559
    Abstract: A system, method and non-transitory computer-readable medium utilize an equivalent circuit model in which electrostatic capacitance changes in response to an arbitrary DC bias voltage applied to a capacitor from the outside. The equivalent circuit model includes a capacitor equivalent circuit section composed of a base circuit and a multistage circuit, a reference current generator section that calculates a reference current, a multiplying factor generator section that calculates a multiplying factor, and a current source current generator section that generates a current of the current source based on the reference current and the multiplying factor. The multiplying factor generator section generates a voltage of an nth-degree polynomial corresponding to the DC bias voltage when applying the DC bias voltage, and defines a current to be generated when the generated voltage is applied to a resistance as the multiplying factor.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 9, 2014
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventor: Yasunori SAKAI
  • Patent number: 6034162
    Abstract: A wear-resistant and flame-retardant resin composition formed by kneading components (a) through (e) at a proportion in a specific range, wherein:the component (a) is a copolymer of ethylene and .alpha.-olefin having a melt index in a range of 0.1-5 g/10 min., containing comonomers in a range of 10-30 wt %, and containing one or more oxygen atoms in the molecule,the component (b) is linear chain polyethylene of low density having a melt index in a range of 0.1-5 g/10 min., a density in a range of 0.920-0.945, and a durometer hardness of 50-65,the component (c) is polyolefin having a durometer hardness of not less than 60,the component (d) is unsaturated carboxylic acid or polyolefin modified by a derivative thereof, andthe component (e) is a metal hydroxide.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: March 7, 2000
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Yukako Mizutani, Yasunori Sakai, Hiroshi Fujimoto
  • Patent number: 5449625
    Abstract: The present invention relates to an apparatus for performing a fluoroimmunoassay, the apparatus comprising an excitation light source, a fluorescence detector, an optical fiber for an excitation light from the excitation light source to which an antigen or antibody is bound, and a spectroscope, in which the mentioned antigen or antibody is bound to an outgoing end surface of the optical fiber for the excitation light. In the apparatus the spectroscope is constructed so that it introduces the excitation light emitted from the excitation light source to a incident end surface of the optical fiber for the excitation light and introduces a fluorescence emitted from a fluorescence-labeled antibody or antigen which forms an immunological complex with the antigen or antibody to the fluorescence detector. In the apparatus the outgoing end surface of the optical fiber for the excitation light has a transmittance for the excitation light from the excitation light source.
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: September 12, 1995
    Assignee: Ibiden Co., Ltd.
    Inventors: Takeshi Kobayashi, Shinji Iijima, Yasunori Sakai, Ken-ichi Shimada
  • Patent number: 5354574
    Abstract: The present invention is directed to a method for producing an optical fiber having formyl groups on a core surface. In one embodiment, a plastic optical fiber having formyl groups on a core surface is obtained by immersing the core surface of the plastic optical fiber in a treating solution containing at least a 0.5 to 40 mM alkali metal hydroxide and a compound having formyl groups in water or lower alcohol solvent. In the other embodiment, a plastic optical fiber having formyl groups on a core surface is obtained by introducing a vic-diol group, a primary hydroxyl group or an alkenyl group on the core surface, and then oxidizing it. Turbidity on the core surface of the optical fiber thus obtained is minimized, thereby reducing the transmittance losses of light.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: October 11, 1994
    Assignee: Ibiden Co., Ltd.
    Inventors: Takeshi Kobayashi, Shinji Iijima, Ken-ichi Shimada, Kazue Ohe, Yasunori Sakai