Patents by Inventor Hayato NAKAYAMA

Hayato NAKAYAMA 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: 11705794
    Abstract: A stator core comprises a stack and a resin portion. The stack comprises an annular yoke portion, a plurality of tooth portions, and a plurality of slots. The resin portion covers an inner wall surface of a slot of the plurality of slots. The resin portion protrudes outward relative to an end surface of the stack in a height direction of the stack. The resin portion is formed on at least a part of an end surface of the tooth portion so as to extend from the inner wall surface of the slot around the end surface of the tooth portion. A resin end portion of the resin portion is disposed on the end surface of the stack and a corner of the resin end portion is formed as an inclined surface including a planar surface or curved surface.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: July 18, 2023
    Inventors: Iwao Myojin, Yusuke Hasuo, Yusuke Eto, Hayato Nakayama
  • Publication number: 20220115935
    Abstract: A stator core comprises a stack and a resin portion. The stack comprises an annular yoke portion, a plurality of tooth portions, and a plurality of slots. The resin portion covers an inner wall surface of a slot of the plurality of slots. The resin portion protrudes outward relative to an end surface of the stack in a height direction of the stack. The resin portion is formed on at least a part of an end surface of the tooth portion so as to extend from the inner wall surface of the slot around the end surface of the tooth portion. A resin end portion of the resin portion is disposed on the end surface of the stack and a corner of the resin end portion is formed as an inclined surface including a planar surface or curved surface.
    Type: Application
    Filed: December 22, 2021
    Publication date: April 14, 2022
    Inventors: Iwao MYOJIN, Yusuke HASUO, Yusuke ETO, Hayato NAKAYAMA
  • Patent number: 11245315
    Abstract: A method of manufacturing a stacked stator core comprises forming a stack that comprises an annular yoke portion, a plurality of tooth portions, and a plurality of slots. The method further comprises inserting a mold core member of the plurality of mold core members into a slot of the plurality of slots, the mold core member comprising a body portion and a closing portion connected to the body portion, the body portion extending along a longitudinal direction of the slot and spaced apart from an inner wall surface of the slot, the closing portion being positioned on a slot opening side of the slot and closing an open end portion of the slot on the slot opening side. Additionally, the method comprises forming a resin portion by charging a melted resin into a filling space between the slot and the mold core member.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: February 8, 2022
    Inventors: Iwao Myojin, Yusuke Hasuo, Yusuke Eto, Hayato Nakayama
  • Patent number: 11196324
    Abstract: A method of manufacturing a stacked core includes: forming a stack by stacking a plurality of core members, each of the plurality of core members including one or more blanked members blanked by a die from a metal plate along a predetermined shape; removing one core member of the plurality of core members from the stack; supplying adhesive to the one core member removed from the stack; and stacking the one core member next to an adjacent core member of the plurality of core members so that the adhesive is placed between the one core member and the adjacent core member.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: December 7, 2021
    Inventors: Satoshi Matsubayashi, Yukio Matsunaga, Yusuke Hasuo, Yusuke Eto, Hayato Nakayama
  • Publication number: 20200108591
    Abstract: A method of manufacturing a stack includes a sequence of operations including separating a sheet from a temporary stack of sheets, rotating the sheet after it has been separated, and applying an adhesive to the sheet, while it is being rotated, by dispensing the adhesive to a surface of the sheet by at least one dispenser and restacking a plurality of the sheets, to which the adhesive was applied by repeating the sequence of operations, to form a manufactured stack of sheets.
    Type: Application
    Filed: October 1, 2019
    Publication date: April 9, 2020
    Applicant: Mitsui High-tec, Inc.
    Inventors: Yukio MATSUNAGA, Yusuke HASUO, Yusuke ETO, Hayato NAKAYAMA, Takaya SAKAGUCHI
  • Publication number: 20190363621
    Abstract: A method of manufacturing a stacked stator core comprises forming a stack that comprises an annular yoke portion, a plurality of tooth portions, and a plurality of slots. The method further comprises inserting a mold core member of the plurality of mold core members into a slot of the plurality of slots, the mold core member comprising a body portion and a closing portion connected to the body portion, the body portion extending along a longitudinal direction of the slot and spaced apart from an inner wall surface of the slot, the closing portion being positioned on a slot opening side of the slot and closing an open end portion of the slot on the slot opening side. Additionally, the method comprises forming a resin portion by charging a melted resin into a filling space between the slot and the mold core member.
    Type: Application
    Filed: August 8, 2019
    Publication date: November 28, 2019
    Applicant: Mitsui High-tec, Inc.
    Inventors: Iwao MYOJIN, Yusuke HASUO, Yusuke ETO, Hayato NAKAYAMA
  • Publication number: 20190305654
    Abstract: A method of manufacturing a stacked core includes: forming a stack by stacking a plurality of core members, each of the plurality of core members including one or more blanked members blanked by a die from a metal plate along a predetermined shape; removing one core member of the plurality of core members from the stack; supplying adhesive to the one core member removed from the stack; and stacking the one core member next to an adjacent core member of the plurality of core members so that the adhesive is placed between the one core member and the adjacent core member.
    Type: Application
    Filed: June 20, 2019
    Publication date: October 3, 2019
    Applicant: Mitsui High-tec, Inc.
    Inventors: Satoshi MATSUBAYASHI, Yukio MATSUNAGA, Yusuke HASUO, Yusuke ETO, Hayato NAKAYAMA
  • Patent number: 10158275
    Abstract: A separation apparatus for a laminated core is configured to separate an annular laminated core, which includes a plurality of core pieces each of which includes a yoke portion and a tooth portion extending from the yoke portion in a direction intersecting the yoke portion and is integrated by the temporary connection of the adjacent core pieces at end portions of the yoke portions, into the respective core pieces. The separation apparatus includes a plurality of separation members that are movable in a radial direction of the laminated core and are disposed so as to be arranged in a circumferential direction of the laminated core, and an actuator that is configured to apply an outward force in the radial direction to the laminated core through the respective separation members by moving the respective separation members outward in the radial direction.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: December 18, 2018
    Assignee: MITSUI HIGH-TEC, INC.
    Inventors: Satoshi Matsubayashi, Hayato Nakayama
  • Publication number: 20170063206
    Abstract: A separation apparatus for a laminated core is configured to separate an annular laminated core, which includes a plurality of core pieces each of which includes a yoke portion and a tooth portion extending from the yoke portion in a direction intersecting the yoke portion and is integrated by the temporary connection of the adjacent core pieces at end portions of the yoke portions, into the respective core pieces. The separation apparatus includes a plurality of separation members that are movable in a radial direction of the laminated core and are disposed so as to be arranged in a circumferential direction of the laminated core, and an actuator that is configured to apply an outward force in the radial direction to the laminated core through the respective separation members by moving the respective separation members outward in the radial direction.
    Type: Application
    Filed: September 2, 2016
    Publication date: March 2, 2017
    Inventors: Satoshi MATSUBAYASHI, Hayato NAKAYAMA