Patents by Inventor Junichiro Urabe

Junichiro Urabe 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: 20220189683
    Abstract: A multilayer coil component includes an element body, a coil, and an external terminal. The element body includes a plurality of insulator layers that is laminated. The coil is disposed in the element body. The external terminal includes a plurality of conductor layers that is laminated. The external terminal is electrically connected to the coil. The element body includes a main face and a first side face adjacent to the main face. The external terminal is embedded in the element body in such a way as to be separated from the first side face and exposed from the main face. The external terminal includes a first separated face that is separated from the first side face as being separated from the main face.
    Type: Application
    Filed: December 9, 2021
    Publication date: June 16, 2022
    Applicant: TDK CORPORATION
    Inventors: Yuto SHIGA, Youichi KAZUTA, Yuichi TAKUBO, Junichiro URABE, Noriaki HAMACHI, Kazuya TOBITA, Toshinori MATSUURA
  • Publication number: 20220139610
    Abstract: A multilayer coil component 1 includes an element body 2, a pair of terminal electrodes 3, and a glass layer G provided on the terminal electrode 3. Each of the pair of terminal electrodes 3 is provided with a plurality of first projecting portions 33 tapered toward the other facing terminal electrode 3 side in an end portion 31b facing the side in the facing direction of a pair of end surfaces 2a and 2b. The glass layer G is provided along the edge of the terminal electrode 3 including at least the first projecting portion 33 in the end portion 31b of the terminal electrode 3.
    Type: Application
    Filed: October 29, 2021
    Publication date: May 5, 2022
    Applicant: TDK CORPORATION
    Inventors: Youichi KAZUTA, Yuichi TAKUBO, Yuto SHIGA, Junichiro URABE, Noriaki HAMACHI, Kazuya TOBITA, Toshinori MATSUURA
  • Publication number: 20220139611
    Abstract: A multilayer coil component 1 includes an element body 2, a coil 10, and a pair of terminal electrodes 3. The element body 2 has a groove portion 20 provided on a main surface 2c. The groove portion 20 is disposed between the pair of terminal electrodes 3 and extends over one side surface 2e and the other side surface 2f. The depth of the groove portion 20 in the direction in which the main surface 2c and a main surface 2d, which are a pair, face each other is smaller than the thickness of each of the pair of terminal electrodes 3 in the facing direction.
    Type: Application
    Filed: October 29, 2021
    Publication date: May 5, 2022
    Applicant: TDK CORPORATION
    Inventors: Yuichi TAKUBO, Masaki TAKAHASHI, Youichi KAZUTA, Yuto SHIGA, Junichiro URABE, Noriaki HAMACHI, Kazuya TOBITA, Toshinori MATSUURA
  • Publication number: 20220130595
    Abstract: Disclosed herein is a coil component that includes a coil pattern embedded in an element body and helically wound in a plurality of turns. The element body includes a support body having a cavity formed therein and a first insulating layer stacked on the support body so as to cover the cavity, thereby forming a hollow space inside the element body. The coil pattern includes a plurality of first sections formed along an inner wall of the cavity and a plurality of second sections formed on the first insulating layer. One ends of the plurality of first sections are connected respectively to their corresponding one ends of the plurality of second sections. The other ends of the plurality of first sections are connected respectively to their corresponding other ends of the plurality of second sections.
    Type: Application
    Filed: October 18, 2021
    Publication date: April 28, 2022
    Inventors: Nobuyuki OKUZAWA, Kazuhiko ITO, Munehiro TAKAKU, Junichiro URABE
  • Publication number: 20220130601
    Abstract: Disclosed herein is a coil component that includes a resin body having a first resin-based insulating material and a second resin-based insulating material lower in relative permittivity than the first resin-based insulating material, a coil pattern embedded in the resin body and helically wound in a plurality of turns, and first and second terminal electrodes formed on a surface of the resin body and connected respectively to one and other ends of the coil pattern. The coil pattern has a part covered with the first resin-based insulating material and another part covered with the second resin-based insulating material.
    Type: Application
    Filed: October 18, 2021
    Publication date: April 28, 2022
    Inventors: Nobuyuki OKUZAWA, Kazuhiko ITO, Munehiro TAKAKU, Junichiro URABE
  • Publication number: 20220130596
    Abstract: Disclosed herein is a coil component that includes a coil pattern embedded in a resin body. The resin body includes a winding core area surrounded by the coil pattern and having a first surface and a substantially flat second surface different in the circumferential direction position from the first surface, and a first surrounding area covering the first surface of the winding core area. The coil pattern includes first sections extending along the first surface of the winding core area and second sections extending along the second surface of the winding core area. One ends of the first sections are connected respectively to their corresponding one ends of the second sections. The other ends of the first sections are connected respectively to their corresponding other ends of the second sections.
    Type: Application
    Filed: October 18, 2021
    Publication date: April 28, 2022
    Inventors: Nobuyuki OKUZAWA, Kazuhiko ITO, Munehiro TAKAKU, Junichiro URABE
  • Publication number: 20210280362
    Abstract: A multilayer coil component includes an element body, a coil disposed in the element body, and a terminal electrode disposed on the element body. The element body has a first side face and a second side face, a first end face and a second end face, and a first main face and a second main face. The terminal electrode includes a first electrode portion and a second electrode portion. The first electrode portion has a first exposed face exposed on the first main face. The second electrode portion has a second exposed face exposed on the first end face. The first exposed face and the second exposed face are adjacent to each other interposing a ridge portion. The first exposed face is separated from an outer edge of the first main face. The second exposed face is separated from an outer edge of the first end face.
    Type: Application
    Filed: March 3, 2021
    Publication date: September 9, 2021
    Applicant: TDK CORPORATION
    Inventors: Yuto SHIGA, Hajime KATO, Junichiro URABE, Kazuya TOBITA, Youichi KAZUTA, Noriaki HAMACHI, Toshinori MATSUURA, Yuichi TAKUBO
  • Publication number: 20210272743
    Abstract: A multilayer coil component includes an element body, a coil, and a terminal electrode. The element body includes a first main face, second main face, first end face, second end face, first side face and second side face. The terminal electrode is connected to the coil. The terminal electrode includes a main-face electrode portion provided on the first main face. The coil includes a plurality of coil conductors. The plurality of coil conductors includes a first coil conductor disposed closest to the first main face to oppose to the main-face electrode portion and a second coil conductor disposed closer to the second main face than the first coil conductor. The first coil conductor has a width narrower than a width of the second coil conductor. The first coil conductor has an aspect ratio higher than an aspect ratio of the second coil conductor.
    Type: Application
    Filed: February 17, 2021
    Publication date: September 2, 2021
    Applicant: TDK CORPORATION
    Inventors: Hajime KATO, Junichiro URABE, Yuto SHIGA, Kazuya TOBITA, Youichi KAZUTA, Noriaki HAMACHI, Toshinori MATSUURA, Yuichi TAKUBO, Munehiro TAKAKU
  • Publication number: 20210249184
    Abstract: In a coil 5 of a multilayer coil component 1, an end portion 6a of a turn 6 closest to a side surface 2e in the facing direction of the side surface 2e and a side surface 2f is connected to a first external electrode 3 and an end portion 11a of a turn 11 closest to the side surface 2f in the facing direction of the pair of side surfaces 2e and 2f is connected to a second external electrode 4. The area at which the turn 6 faces the second external electrode 4 and the area at which the turn 11 faces the first external electrode 3 are smaller than the area at which turns 7, 8, 9, and 10 other than the turn 6 and the turn 11 face the first external electrode 3 or the second external electrode 4.
    Type: Application
    Filed: February 3, 2021
    Publication date: August 12, 2021
    Applicant: TDK CORPORATION
    Inventors: Junichiro URABE, Hajime KATO, Yuto SHIGA, Kazuya TOBITA, Youichi KAZUTA, Noriaki HAMACHI, Toshinori MATSUURA, Yuichi TAKUBO, Asami TAKAHASHI, Munehiro TAKAKU
  • Publication number: 20210249183
    Abstract: In a coil 5 of a multilayer coil component 1, an end portion 6a of a turn 6 closest to a side surface 2e in the facing direction of the side surface 2e and a side surface 2f is connected to a first external electrode 3 and an end portion 11a of a turn 11 closest to the side surface 2f in the facing direction is connected to a second external electrode 4. When viewed from the facing direction, the area of the region where the turn 6 and the second external electrode 4 face each other and the area of the region where the turn 11 and the first external electrode 3 face each other are larger than the area of the region where turns other than the turn 6 and the turn 11 and the first external electrode 3 or the second external electrode 4 face each other.
    Type: Application
    Filed: February 3, 2021
    Publication date: August 12, 2021
    Applicant: TDK CORPORATION
    Inventors: Junichiro URABE, Hajime KATO, Yuto SHIGA, Kazuya TOBITA, Youichi KAZUTA, Noriaki HAMACHI, Toshinori MATSUURA, Yuichi TAKUBO, Asami TAKAHASHI, Munehiro TAKAKU
  • Patent number: 10957962
    Abstract: A magnetoresistive effect device includes an input port, an input-side signal line, an MR unit including a magnetoresistive effect element and a magnetic-field generating signal line, and an output unit including a magnetoresistive effect element, an output-side signal line, and an output port. The magnetoresistive effect device further includes a DC application terminal. The magnetoresistive effect element is connected to the output port via the output-side signal line in the output unit. The input-side signal line is arranged so that a high frequency magnetic field generated from the input-side signal line is applied to the magnetoresistive effect element in the MR unit. In the MR unit, the magnetoresistive effect element is connected to the magnetic-field generating signal line. The magnetic-field generating signal line is arranged so that a high-frequency magnetic field generated from magnetic-field generating signal line is applied to the magnetoresistive effect element in the output unit.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: March 23, 2021
    Assignee: TDK CORPORATION
    Inventors: Takekazu Yamane, Tetsuya Shibata, Tsuyoshi Suzuki, Junichiro Urabe, Atsushi Shimura
  • Patent number: 10608309
    Abstract: A magnetoresistance effect device includes a first port, a second port, a magnetoresistance effect element, a first signal line that is connected to the first port and applies a high-frequency magnetic field to the magnetoresistance effect element, a second signal line that connects the second port to the magnetoresistance effect element, and a direct current application terminal that is connected to a power source configured to apply a direct current or a direct voltage in a lamination direction of the magnetoresistance effect element. The first signal line includes a plurality of high-frequency magnetic field application areas capable of applying a high-frequency magnetic field to the magnetoresistance effect element, and the plurality of high-frequency magnetic field application areas in the first signal line are disposed at positions at which high-frequency magnetic fields generated in the high-frequency magnetic field application areas reinforce each other in the magnetoresistance effect element.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: March 31, 2020
    Assignee: TDK CORPORATION
    Inventors: Takekazu Yamane, Junichiro Urabe, Tsuyoshi Suzuki, Atsushi Shimura
  • Patent number: 10483458
    Abstract: A magnetoresistive effect device including a magnetoresistive effect element with which a high-frequency filter can be realized is provided. Magnetoresistive effect device includes: at least one magnetoresistive effect element including a magnetization fixed layer, spacer layer, and magnetization free layer in which magnetization direction is changeable; first and second port; signal line; and direct-current input terminal. First and second ports are connected to each other via signal line. Magnetoresistive effect element is connected to signal line and is to be connected to ground in parallel to second port. Direct-current input terminal is connected to signal line. A closed circuit including magnetoresistive effect element, signal line, ground, and direct-current input terminal is to be formed.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: November 19, 2019
    Assignee: TDK CORPORATION
    Inventors: Junichiro Urabe, Tetsuya Shibata, Atsushi Shimura, Takekazu Yamane, Tsuyoshi Suzuki
  • Patent number: 10381997
    Abstract: A high-frequency filter includes at least one magnetoresistive effect element; a first port through which a high-frequency signal is input; a second port through which a high-frequency signal is output; and a signal line.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: August 13, 2019
    Assignee: TDK CORPORATION
    Inventors: Tetsuya Shibata, Junichiro Urabe, Atsushi Shimura, Takekazu Yamane
  • Publication number: 20190245254
    Abstract: A magnetoresistive effect device includes an input port, an input-side signal line, an MR unit including a magnetoresistive effect element and a magnetic-field generating signal line, and an output unit including a magnetoresistive effect element, an output-side signal line, and an output port. The magnetoresistive effect device further includes a DC application terminal. The magnetoresistive effect element is connected to the output port via the output-side signal line in the output unit. The input-side signal line is arranged so that a high frequency magnetic field generated from the input-side signal line is applied to the magnetoresistive effect element in the MR unit. In the MR unit, the magnetoresistive effect element is connected to the magnetic-field generating signal line. The magnetic-field generating signal line is arranged so that a high-frequency magnetic field generated from magnetic-field generating signal line is applied to the magnetoresistive effect element in the output unit.
    Type: Application
    Filed: October 23, 2017
    Publication date: August 8, 2019
    Applicant: TDK CORPORATION
    Inventors: Takekazu YAMANE, Tetsuya SHIBATA, Tsuyoshi SUZUKI, Junichiro URABE, Atsushi SHIMURA
  • Patent number: 10332666
    Abstract: The magnetoresistance effect device includes: a first port; a second port; a magnetoresistance effect element; a first signal line that is connected to the first port and applies a high frequency magnetic field to the magnetoresistance effect element; a second signal line that connects the second port and the magnetoresistance effect element to each other; and a direct current application terminal capable of being connected to a power supply that applies a direct current or a direct current voltage. The first signal line includes a magnetic field generator, which extends in a first direction, at a position in the lamination direction of the magnetoresistance effect element or an in-plane direction that is orthogonal to the lamination direction, and the magnetic field generator and the magnetoresistance effect element include an overlapping portion as viewed from the lamination direction in which the magnetic field generator is disposed, or the in-plane direction.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: June 25, 2019
    Assignee: TDK CORPORATION
    Inventors: Takekazu Yamane, Junichiro Urabe, Tsuyoshi Suzuki, Atsushi Shimura
  • Publication number: 20180315535
    Abstract: The magnetoresistance effect device includes: a first port; a second port; a magnetoresistance effect element; a first signal line that is connected to the first port and applies a high frequency magnetic field to the magnetoresistance effect element; a second signal line that connects the second port and the magnetoresistance effect element to each other; and a direct current application terminal capable of being connected to a power supply that applies a direct current or a direct current voltage. The first signal line includes a magnetic field generator, which extends in a first direction, at a position in the lamination direction of the magnetoresistance effect element or an in-plane direction that is orthogonal to the lamination direction, and the magnetic field generator and the magnetoresistance effect element include an overlapping portion as viewed from the lamination direction in which the magnetic field generator is disposed, or the in-plane direction.
    Type: Application
    Filed: April 25, 2018
    Publication date: November 1, 2018
    Applicant: TDK CORPORATION
    Inventors: Takekazu YAMANE, Junichiro URABE, Tsuyoshi SUZUKI, Atsushi SHIMURA
  • Publication number: 20180316077
    Abstract: A magnetoresistance effect device includes a first port, a second port, a magnetoresistance effect element, a first signal line that is connected to the first port and applies a high-frequency magnetic field to the magnetoresistance effect element, a second signal line that connects the second port to the magnetoresistance effect element, and a direct current application terminal that is connected to a power source configured to apply a direct current or a direct voltage in a lamination direction of the magnetoresistance effect element. The first signal line includes a plurality of high-frequency magnetic field application areas capable of applying a high-frequency magnetic field to the magnetoresistance effect element, and the plurality of high-frequency magnetic field application areas in the first signal line are disposed at positions at which high-frequency magnetic fields generated in the high-frequency magnetic field application areas reinforce each other in the magnetoresistance effect element.
    Type: Application
    Filed: April 25, 2018
    Publication date: November 1, 2018
    Applicant: TDK CORPORATION
    Inventors: Takekazu YAMANE, Junichiro URABE, Tsuyoshi SUZUKI, Atsushi SHIMURA
  • Publication number: 20180309046
    Abstract: Magnetoresistive effect device including magnetoresistive effect element which high-frequency filter can be realized is provided. Magnetoresistive effect device includes: at least one magnetoresistive effect element including magnetization fixed, spacer, and magnetization free layer wherein magnetization direction is changeable; first and second ports; signal line; and direct-current input terminal. First and second ports are connected to each other via signal line. Magnetoresistive effect element is connected to signal line and is to be connected to ground in parallel to second port. Direct-current input terminal is connected to signal line. Closed circuit including magnetoresistive effect element, signal line, ground, and direct-current input terminal is to be formed. Magnetoresistive effect element is arranged wherein direct current input from direct-current input terminal flows through magnetoresistive effect element in direction from magnetization fixed layer to magnetization free layer.
    Type: Application
    Filed: June 2, 2016
    Publication date: October 25, 2018
    Applicant: TDK CORPORATION
    Inventors: Junichiro URABE, Tetsuya SHIBATA, Atsushi SHIMURA, Takekazu YAMANE, Tsuyoshi SUZUKI
  • Publication number: 20180277749
    Abstract: A magnetoresistive effect device including a magnetoresistive effect element with which a high-frequency filter can be realized is provided. Magnetoresistive effect device includes: at least one magnetoresistive effect element including a magnetization fixed layer, spacer layer, and magnetization free layer in which magnetization direction is changeable; first and second port; signal line; and direct-current input terminal. First and second ports are connected to each other via signal line. Magnetoresistive effect element is connected to signal line and is to be connected to ground in parallel to second port. Direct-current input terminal is connected to signal line. A closed circuit including magnetoresistive effect element, signal line, ground, and direct-current input terminal is to be formed.
    Type: Application
    Filed: June 2, 2016
    Publication date: September 27, 2018
    Applicant: TDK CORPORATION
    Inventors: Junichiro URABE, Tetsuya SHIBATA, Atsushi SHIMURA, Takekazu YAMANE, Tsuyoshi SUZUKI