Patents Assigned to Aster
  • Publication number: 20250105691
    Abstract: There are provided a coil unit, a stator member, a motor, and methods of manufacturing these, configured to achieve downsizing and simplified manufacturing steps. The coil unit includes a coil, and a bus bar including a connection end portion to which the coil is connected. One end of the coil and the connection end portion are welded by cold pressure welding with end faces of them being butted in a welded portion.
    Type: Application
    Filed: December 9, 2024
    Publication date: March 27, 2025
    Applicant: ASTER CO., LTD.
    Inventors: Takenobu HONGO, Yuta FURUYA
  • Patent number: 12199483
    Abstract: There are provided a coil unit, a stator member, a motor, and methods of manufacturing these, configured to achieve downsizing and simplified manufacturing steps. The coil unit includes a coil, and a bus bar including a connection end portion to which the coil is connected. One end of the coil and the connection end portion are welded by cold pressure welding with end faces of them being butted in a welded portion.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: January 14, 2025
    Assignee: ASTER CO., LTD.
    Inventors: Takenobu Hongo, Yuta Furuya
  • Publication number: 20240405646
    Abstract: The cold pressure welding apparatus includes a first holding part capable of sandwiching a first flat conductor, a second holding part disposed opposite to the first holding part and capable of sandwiching a second flat conductor, and a drive part for moving the first holding part and the second holding part. The drive part can move the first holding part and the second holding part between a first direction separated position and a close position along a first direction. The drive part can move the first holding part and the second holding part between a second direction separated position and a sandwiching position along a second direction.
    Type: Application
    Filed: August 9, 2024
    Publication date: December 5, 2024
    Applicant: ASTER CO., LTD.
    Inventor: Takenobu HONGO
  • Publication number: 20240364163
    Abstract: Provided are a coil, a stator, and a motor that can suppress generation of eddy current in the coil and reduce Joule loss. A coil is formed by connecting a plurality of one-turn regions each including a turn of a conductor to have a helical structure. The conductor is formed by connecting a first member to a second member in a longitudinal direction, and the plurality of one-turn regions include at least in a part thereof the first member.
    Type: Application
    Filed: May 10, 2022
    Publication date: October 31, 2024
    Applicant: ASTER CO., LTD.
    Inventors: Kyohei YANAGISAWA, Yuta FURUYA
  • Publication number: 20240355541
    Abstract: The coil manufacturing apparatus includes: a bending device configured to bend each of a plurality of flat conductors; and a welding device configured to weld the plurality of flat conductors. The bending device is a unit configured to bend each of the flat conductors before being supplied to the welding device. The welding device includes a first holding portion and a second holding portion disposed facing each other, and a driving portion configured to move the first holding portion and the second holding portion. The helical structure body is formed by pressing end faces of the one flat conductor and the another flat conductor against each other along a strip longitudinal direction and joining the flat conductors through pressure welding while reducing a distance in the strip longitudinal direction. The coil manufacturing apparatus includes a removing device configured to remove an unwanted portion of the flat conductors generated by welding.
    Type: Application
    Filed: June 26, 2024
    Publication date: October 24, 2024
    Applicant: ASTER CO., LTD.
    Inventor: Takenobu HONGO
  • Patent number: 12088158
    Abstract: The cold pressure welding apparatus includes a first holding part capable of sandwiching a first flat conductor, a second holding part disposed opposite to the first holding part and capable of sandwiching a second flat conductor, and a drive part for moving the first holding part and the second holding part. The drive part can move the first holding part and the second holding part between a first direction separated position and a close position along a first direction. The drive part can move the first holding part and the second holding part between a second direction separated position and a sandwiching position along a second direction.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: September 10, 2024
    Assignee: ASTER CO., LTD.
    Inventor: Takenobu Hongo
  • Patent number: 12068653
    Abstract: There are provided a coil, a stator member, a stator, and a motor that can, in the case of joining (connecting) a busbar and the coil's terminals, simplify control necessary for joining such as positioning, actualize downsizing of a device (welding device or stator manufacturing device), and improve efficiency of joining work. The coil is configured by winding a conductor, and its first and second terminals are extended out on a side of one surface of the coil.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: August 20, 2024
    Assignee: ASTER CO., LTD.
    Inventor: Takenobu Hongo
  • Patent number: 12057265
    Abstract: The coil manufacturing apparatus includes: a bending device configured to bend each of a plurality of flat conductors; and a welding device configured to weld the plurality of flat conductors. The bending device is a unit configured to bend each of the flat conductors before being supplied to the welding device. The welding device includes a first holding portion and a second holding portion disposed facing each other, and a driving portion configured to move the first holding portion and the second holding portion. The helical structure body is formed by pressing end faces of the one flat conductor and the another flat conductor against each other along a strip longitudinal direction and joining the flat conductors through pressure welding while reducing a distance in the strip longitudinal direction. The coil manufacturing apparatus includes a removing device configured to remove an unwanted portion of the flat conductors generated by welding.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: August 6, 2024
    Assignee: ASTER CO., LTD.
    Inventor: Takenobu Hongo
  • Patent number: 12003149
    Abstract: A coil unit and a manufacturing method of the same are provided which are configured to simplify the configuration of a connection portion between a coil and a wiring material (busbar), to simplify the number of components and a connection step, to prevent an increase in resistance at the connection portion, and to achieve a good connection state. A busbars-welded coil includes a coil made of a wound first metal material, and busbars made of a second metal material connected to end portions of the coil. A welded portion between the end portion of the coil and the busbar is configured by pressure welding with end surfaces butted against each other.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: June 4, 2024
    Assignee: ASTER CO., LTD.
    Inventor: Takenobu Hongo
  • Patent number: 11984780
    Abstract: A coil unit and a manufacturing method of the same are provided which simplify the connection structure at the end portion of a coil to reduce the size of a stator, and minimize the work environment (equipment and work regions) when mounting the coil on the stator, and make it possible to perform efficient mounting work. A terminals-welded coil unit includes a coil made of a first metal material, and a terminal made of a second metal material connected to an end portion of the coil. A welded portion between the end portion of the coil and the terminal is configured by pressure welding with end surfaces butted against each other.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: May 14, 2024
    Assignee: ASTER CO., LTD.
    Inventor: Takenobu Hongo
  • Patent number: 11955850
    Abstract: The cold pressure welding apparatus includes a first holding part capable of sandwiching a first flat conductor, a second holding part disposed opposite to the first holding part and capable of sandwiching a second flat conductor, and a drive part for moving the first holding part and the second holding part. The drive part can move the first holding part and the second holding part between a first direction separated position and a close position along a first direction. The drive part can move the first holding part and the second holding part between a second direction separated position and a sandwiching position along a second direction.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: April 9, 2024
    Assignee: Aster Co., Ltd.
    Inventor: Takenobu Hongo
  • Patent number: 11870193
    Abstract: Provided are a busbar unit and a method of manufacturing thereof configured to prevent an increase in resistance at a connection portion therebetween, to provide a good connection condition, and to easily achieve even a complicated wiring structure, in the case of connecting between a busbar and a pre-welded member (a terminal, another busbar, or the like) made of a metal material different from that of the busbar. A busbar unit includes a busbar made of a first metal material, and a welded member made of a second metal material to be connected to an end portion of the busbar. A welded portion between the end portion of the busbar and the welded member is configured by pressure welding between end surfaces butted against each other.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: January 9, 2024
    Assignee: ASTER CO., LTD.
    Inventor: Takenobu Hongo
  • Patent number: 11804757
    Abstract: The cold pressure welding apparatus includes a first holding part capable of sandwiching a first flat conductor, a second holding part disposed opposite to the first holding part and capable of sandwiching a second flat conductor, and a drive part for moving the first holding part and the second holding part. The drive part can move the first holding part and the second holding part between a first direction separated position and a close position along a first direction. The drive part can move the first holding part and the second holding part between a second direction separated position and a sandwiching position along a second direction.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: October 31, 2023
    Assignee: ASTER CO., LTD.
    Inventor: Takenobu Hongo
  • Publication number: 20230344291
    Abstract: Provided are a coil capable of enhancing heat dissipation performance and/or voltage resistance, and a stator and a motor using the coil. A coil includes a helical structure body made of strip-shaped flat conductors that are continuously joined into a helical form. In the helical structure body, a first turn of helix is separated from a second turn, which is continuous to the first turn, at a preset interval.
    Type: Application
    Filed: August 18, 2021
    Publication date: October 26, 2023
    Applicant: ASTER CO., LTD.
    Inventor: Takenobu HONGO
  • Publication number: 20230219159
    Abstract: Provided are a dissimilar metal welded body and a method of manufacturing the same, capable of preventing galvanic corrosion in a connection portion between dissimilar metals in the dissimilar metal welded body and of sufficient insulation coating being applied even when the insulation coating is applied to the dissimilar metal welded body. The dissimilar metal welded body includes a first member made of a metal containing aluminum as a main component, a second member made of a metal containing copper as a main component, a welded portion formed by pressure-welding an end face of the first member and an end face of the second member to each other, and a metal film that continuously covers a substantially entire part of the first member and at least a part of the second member. The metal film is a film made of a metal containing copper as a main component.
    Type: Application
    Filed: March 4, 2022
    Publication date: July 13, 2023
    Applicants: AKITA PREFECTURAL GOVERNMENT, ASTER CO., LTD.
    Inventors: Toshio SUZUKI, Takenobu HONGO
  • Publication number: 20230093398
    Abstract: Provided is a method for manufacturing a coil enabling mass-production of good-quality coils that have an enhanced space factor in a core and enhanced heat dissipation performance and that are free from deterioration in properties due to cutting and welding. A method for manufacturing a coil includes: a step of preparing a plurality of strip-shaped flat conductors which can constitute a helical structure body when the flat conductors are continuously joined; a welding step of forming the helical structure body by butting and pressing one end face of one of the flat conductors in a strip longitudinal direction and one end face of another one of the flat conductors in the strip longitudinal direction; an annealing step of the helical structure body); an insulation step of the helical structure body; and a molding step of forming the helical structure body into a desired shape.
    Type: Application
    Filed: January 8, 2021
    Publication date: March 23, 2023
    Applicant: ASTER CO., LTD.
    Inventor: Takenobu HONGO
  • Publication number: 20220352792
    Abstract: The cold pressure welding apparatus includes a first holding part capable of sandwiching a first flat conductor, a second holding part disposed opposite to the first holding part and capable of sandwiching a second flat conductor, and a drive part for moving the first holding part and the second holding part. The drive part can move the first holding part and the second holding part between a first direction separated position and a close position along a first direction. The drive part can move the first holding part and the second holding part between a second direction separated position and a sandwiching position along a second direction.
    Type: Application
    Filed: June 30, 2022
    Publication date: November 3, 2022
    Applicant: Aster Co., Ltd.
    Inventor: Takenobu Hongo
  • Publication number: 20220337135
    Abstract: The cold pressure welding apparatus includes a first holding part capable of sandwiching a first flat conductor, a second holding part disposed opposite to the first holding part and capable of sandwiching a second flat conductor, and a drive part for moving the first holding part and the second holding part. The drive part can move the first holding part and the second holding part between a first direction separated position and a close position along a first direction. The drive part can move the first holding part and the second holding part between a second direction separated position and a sandwiching position along a second direction.
    Type: Application
    Filed: June 30, 2022
    Publication date: October 20, 2022
    Applicant: ASTER CO, LTD.
    Inventor: Takenobu HONGO
  • Publication number: 20220224180
    Abstract: There are provided a coil, a stator member, a stator, and a motor that can, in the case of joining (connecting) a busbar and the coil's terminals, simplify control necessary for joining such as positioning, actualize downsizing of a device (welding device or stator manufacturing device), and improve efficiency of joining work. The coil is configured by winding a conductor, and its first and second terminals are extended out on a side of one surface of the coil.
    Type: Application
    Filed: January 1, 2020
    Publication date: July 14, 2022
    Applicant: ASTER CO., LTD.
    Inventor: Takenobu HONGO
  • Publication number: 20220131449
    Abstract: A coil unit and a manufacturing method of the same are provided which are configured to simplify the configuration of a connection portion between a coil and a wiring material (busbar), to simplify the number of components and a connection step, to prevent an increase in resistance at the connection portion, and to achieve a good connection state. A busbars-welded coil includes a coil made of a wound first metal material, and busbars made of a second metal material connected to end portions of the coil. A welded portion between the end portion of the coil and the busbar is configured by pressure welding with end surfaces butted against each other.
    Type: Application
    Filed: January 31, 2020
    Publication date: April 28, 2022
    Applicant: ASTER CO., LTD.
    Inventor: Takenobu HONGO