Patents by Inventor Takayuki YAMAKITA

Takayuki YAMAKITA 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: 11942261
    Abstract: A common-mode choke coil includes a core having a winding core portion, a first winding and a second winding. A winding start side region ranges from one end portion to a position where a first winding is brought into contact with the winding core portion, and a winding finish side region ranges from the other end portion to a position where a second winding is brought into contact with the winding core portion. The first winding is wound on the winding core portion such that the first winding is positioned on a negative direction side in an x axis direction with respect to the second winding at the same turn in the winding start side region and the second winding is interposed between the first winding and the winding core portion in the winding finish side region.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: March 26, 2024
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Takayuki Yamakita
  • Publication number: 20230112263
    Abstract: A method of manufacturing a winding-type electronic component using stranded wires which can suppress a disconnection of a winding when a plurality of windings is twisted. The method of manufacturing a winding-type electronic component includes: a preparation step of allowing a chuck to hold a core having a winding core portion (14) and flange portions; a first step of fixing a portion of each of windings supplied from nozzles (N1, N2) to the flange portion; and a second step of twisting the windings by rotating the chuck.
    Type: Application
    Filed: November 1, 2022
    Publication date: April 13, 2023
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Takayuki YAMAKITA
  • Patent number: 11515087
    Abstract: A method of manufacturing a winding-type electronic component using stranded wires which can suppress a disconnection of a winding when a plurality of windings is twisted. The method of manufacturing a winding-type electronic component includes: a preparation step of allowing a chuck to hold a core having a winding core portion (14) and flange portions; a first step of fixing a portion of each of windings supplied from nozzles (N1, N2) to the flange portion; and a second step of twisting the windings by rotating the chuck.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: November 29, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Takayuki Yamakita
  • Publication number: 20210296044
    Abstract: A common-mode choke coil includes a core having a winding core portion, a first winding and a second winding. A winding start side region ranges from one end portion to a position where a first winding is brought into contact with the winding core portion, and a winding finish side region ranges from the other end portion to a position where a second winding is brought into contact with the winding core portion. The first winding is wound on the winding core portion such that the first winding is positioned on a negative direction side in an x axis direction with respect to the second winding at the same turn in the winding start side region and the second winding is interposed between the first winding and the winding core portion in the winding finish side region.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 23, 2021
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Takayuki YAMAKITA
  • Patent number: 11043325
    Abstract: A common-mode choke coil includes a core having a winding core portion, a first winding and a second winding. A winding start side region ranges from one end portion to a position where a first winding is brought into contact with the winding core portion, and a winding finish side region ranges from the other end portion to a position where a second winding is brought into contact with the winding core portion. The first winding is wound on the winding core portion such that the first winding is positioned on a negative direction side in an x axis direction with respect to the second winding at the same turn in the winding start side region and the second winding is interposed between the first winding and the winding core portion in the winding finish side region.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: June 22, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Takayuki Yamakita
  • Publication number: 20200126718
    Abstract: A method of manufacturing a winding-type electronic component using stranded wires which can suppress a disconnection of a winding when a plurality of windings is twisted. The method of manufacturing a winding-type electronic component includes: a preparation step of allowing a chuck to hold a core having a winding core portion (14) and flange portions; a first step of fixing a portion of each of windings supplied from nozzles (N1, N2) to the flange portion; and a second step of twisting the windings by rotating the chuck.
    Type: Application
    Filed: December 18, 2019
    Publication date: April 23, 2020
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Takayuki YAMAKITA
  • Patent number: 10546690
    Abstract: A method of manufacturing a winding-type electronic component using stranded wires which can suppress a disconnection of a winding when a plurality of windings is twisted. The method of manufacturing a winding-type electronic component includes: a preparation step of allowing a chuck to hold a core having a winding core portion (14) and flange portions; a first step of fixing a portion of each of windings supplied from nozzles (N1, N2) to the flange portion; and a second step of twisting the windings by rotating the chuck.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: January 28, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Takayuki Yamakita
  • Patent number: 10361028
    Abstract: A method for manufacturing a wound coil which has a stable appearance configuration with improved shape accuracy of a coating resin formed on the wound coil. A wound coil element is pressed into a holding jig including an elastic holding hole, and held therein such that an upper end of a coil is level with or lower than an upper end of the holding hole, and a gap G is present between an inner surface of the holding hole and the coil. Next, a flowable coating resin is supplied into the holding hole holding the wound coil element such that the coating resin is held without flowing away downwardly from the gap G, and the upper end 16a of the coil is buried in the coating resin. Next, the supplied coating resin is subjected to curing, thereby forming a wound coil.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: July 23, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Takayuki Yamakita
  • Patent number: 9842691
    Abstract: A wire winding method which can prevent twisting tendency of a wire and the occurrence of damage on the wire. The wire winding method includes: a first step of making a plurality of wires pass through a tensioner and a nozzle sequentially and fixing distal ends of the plurality of wires to a core side; and a second step of winding the plurality of wires on the core while twisting the plurality of wires by making the nozzle revolve around the core such that a mutual positional relationship between a plurality of wire insertion holes formed in the nozzle through which the plurality of wires are made to pass respectively with respect to the tensioner is set to a fixed value.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: December 12, 2017
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Takayuki Yamakita
  • Publication number: 20170069418
    Abstract: A common-mode choke coil includes a core having a winding core portion, a first winding and a second winding. A winding start side region ranges from one end portion to a position where a first winding is brought into contact with the winding core portion, and a winding finish side region ranges from the other end portion to a position where a second winding is brought into contact with the winding core portion. The first winding is wound on the winding core portion such that the first winding is positioned on a negative direction side in an x axis direction with respect to the second winding at the same turn in the winding start side region and the second winding is interposed between the first winding and the winding core portion in the winding finish side region.
    Type: Application
    Filed: November 17, 2016
    Publication date: March 9, 2017
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventor: Takayuki YAMAKITA
  • Publication number: 20170069425
    Abstract: A method of manufacturing a winding-type electronic component using stranded wires which can suppress a disconnection of a winding when a plurality of windings is twisted. The method of manufacturing a winding-type electronic component includes: a preparation step of allowing a chuck to hold a core having a winding core portion (14) and flange portions; a first step of fixing a portion of each of windings supplied from nozzles (N1, N2) to the flange portion; and a second step of twisting the windings by rotating the chuck.
    Type: Application
    Filed: November 17, 2016
    Publication date: March 9, 2017
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventor: Takayuki YAMAKITA
  • Publication number: 20160379756
    Abstract: A wire winding method which can prevent twisting tendency of a wire and the occurrence of damage on the wire. The wire winding method includes: a first step of making a plurality of wires pass through a tensioner and a nozzle sequentially and fixing distal ends of the plurality of wires to a core side; and a second step of winding the plurality of wires on the core while twisting the plurality of wires by making the nozzle revolve around the core such that a mutual positional relationship between a plurality of wire insertion holes formed in the nozzle through which the plurality of wires are made to pass respectively with respect to the tensioner is set to a fixed value.
    Type: Application
    Filed: June 16, 2016
    Publication date: December 29, 2016
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventor: Takayuki YAMAKITA
  • Publication number: 20160358710
    Abstract: A method for manufacturing a wound coil which has a stable appearance configuration with improved shape accuracy of a coating resin formed on the wound coil. A wound coil element is pressed into a holding jig including an elastic holding hole, and held therein such that an upper end of a coil is level with or lower than an upper end of the holding hole, and a gap G is present between an inner surface of the holding hole and the coil. Next, a flowable coating resin is supplied into the holding hole holding the wound coil element such that the coating resin is held without flowing away downwardly from the gap G, and the upper end 16a of the coil is buried in the coating resin. Next, the supplied coating resin is subjected to curing, thereby forming a wound coil.
    Type: Application
    Filed: May 26, 2016
    Publication date: December 8, 2016
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventor: Takayuki YAMAKITA