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).

  • Patent number: 12609229
    Abstract: The element body includes a main surface, and a side surface located on imaginary planes orthogonal to the main surface. The external electrode includes first, second and third electrode portions. The first electrode portion is exposed at the main surface. The second electrode portion is continuous with the first electrode portion and exposed at the main surface. The second electrode portion is located to extend from the first electrode portion to the imaginary planes when viewed in a direction orthogonal to the main surface. The third electrode portion is continuous with the first electrode portion and is separated from the second electrode portion in the direction orthogonal to the main surface. The third electrode portion includes outer edges coinciding with the imaginary planes when viewed in the direction orthogonal to the main surface. The element body includes a part between the second electrode portion and the third electrode portion.
    Type: Grant
    Filed: October 12, 2022
    Date of Patent: April 21, 2026
    Assignee: TDK CORPORATION
    Inventors: Youichi Kazuta, Junichiro Urabe, Toshinori Matsuura, Noriaki Hamachi, Yuichi Takubo, Yuto Shiga, Kazuya Tobita
  • Patent number: 12609235
    Abstract: The mainline pattern and the pair of bypass patterns in the multilayer inductor can be regarded as three inductors connected in parallel in the element body. That is, in the multilayer inductor, paralleling of the inductance is realized in the element body by the mainline pattern and the pair of bypass patterns. Therefore, the inductance value of the multilayer inductor as a whole can be reduced.
    Type: Grant
    Filed: March 22, 2023
    Date of Patent: April 21, 2026
    Assignee: TDK CORPORATION
    Inventors: Noriaki Hamachi, Toshinori Matsuura, Junichiro Urabe, Kazuya Tobita, Yuto Shiga, Youichi Kazuta, Yuichi Takubo, Shunya Suzuki, Xuran Guo, So Kobayashi
  • Patent number: 12580117
    Abstract: A multilayer coil component 1 includes an element body 2, a coil 5, a first terminal electrode 3, a second terminal electrode 4, a first connecting conductor 6, and a second connecting conductor 7. The first connecting conductor 6 extends along a first direction D1 and has a third side 6c intersecting with a second direction D2 and a third direction D3 in a cross section orthogonal to the extension direction. The coil 5 faces the third side 6c of the first connecting conductor 6 when viewed from the first direction D1, and a side 5a facing the third side 6c is parallel to the third side 6c at the part that faces the third side 6c of the first connecting conductor 6.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: March 17, 2026
    Assignee: TDK CORPORATION
    Inventors: Youichi Kazuta, Kazuya Tobita, Yuto Shiga, Yuichi Takubo, Junichiro Urabe, Noriaki Hamachi, Toshinori Matsuura
  • Patent number: 12488936
    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: Grant
    Filed: December 9, 2021
    Date of Patent: December 2, 2025
    Assignee: TDK CORPORATION
    Inventors: Yuto Shiga, Youichi Kazuta, Yuichi Takubo, Junichiro Urabe, Noriaki Hamachi, Kazuya Tobita, Toshinori Matsuura
  • Patent number: 12469632
    Abstract: A multilayer coil component 1 includes an element body 2, a coil 5, a first terminal electrode 3, a second terminal electrode 4, a first connection conductor 6, and a second connection conductor 7. The coil 5 includes a first coil portion 8 that has one end of the coil 5 and is disposed on a side of a main surface 2c and a second coil portion 9 that has the other end of the coil 5 and is disposed on a side of the main surface 2d. A distance L2 between the first connection conductor 6 and the second coil portion 9 is larger than a distance L1 between the first connection conductor 6 and the first coil portion 8.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: November 11, 2025
    Assignee: TDK CORPORATION
    Inventors: Kazuya Tobita, Youichi Kazuta, Yuto Shiga, Yuichi Takubo, Junichiro Urabe, Noriaki Hamachi, Toshinori Matsuura
  • Patent number: 12462970
    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: Grant
    Filed: October 18, 2021
    Date of Patent: November 4, 2025
    Assignee: TDK Corporation
    Inventors: Nobuyuki Okuzawa, Kazuhiko Ito, Munehiro Takaku, Junichiro Urabe
  • Patent number: 12424364
    Abstract: In a multilayer coil component, a coil is disposed in an element body. The coil includes a plurality of coil conductors. The plurality of coil conductors include first, second, and third end portions. The first, second, and third end portions are exposed from the element body on a first surface and connected to a first external electrode. The first, second, and third end portions are arranged in order in a first direction when viewed from a second direction along the first surface and orthogonal to the first direction. The first end portion and the third end portion overlap each other when viewed from the first direction at least in part. Each of the first end portion and the third end portion has a region not overlapping the second end portion when viewed from the first direction.
    Type: Grant
    Filed: September 27, 2022
    Date of Patent: September 23, 2025
    Assignee: TDK CORPORATION
    Inventors: Noriaki Hamachi, Toshinori Matsuura, Junichiro Urabe, Kazuya Tobita, Yuto Shiga, Youichi Kazuta, Yuichi Takubo, Shunya Suzuki, Xuran Guo, So Kobayashi
  • Patent number: 12354786
    Abstract: A multilayer coil component includes: a through hole connecting portion electrically connecting an end portion of the coil portion and the external terminal, in which a coil pattern and a through hole pattern are formed in each of the plurality of layers, the through hole connecting portion is formed by mutually joining a plurality of the through hole patterns in the lamination direction, the through hole pattern in at least one first layer among the plurality of layers is shifted with respect to the through hole pattern in another second layer when viewed from the lamination direction, and, when viewed from the lamination direction, a distance between the through hole pattern in the first layer and a coil pattern in the first layer is farther than a distance between the through hole pattern in the second layer and the coil pattern in the first layer.
    Type: Grant
    Filed: March 16, 2022
    Date of Patent: July 8, 2025
    Assignee: TDK CORPORATION
    Inventors: Kazuya Tobita, Youichi Kazuta, Yuichi Takubo, Junichiro Urabe, Noriaki Hamachi, Yuto Shiga, Toshinori Matsuura
  • Patent number: 12340936
    Abstract: A coil component includes an exterior body, a coil, and a pair of terminal electrodes. The coil is disposed inside the exterior body. The pair of terminal electrodes are electrically connected to the coil and are disposed on the exterior body. The exterior body includes a first portion that covers the coil and is made of a resin, and a second portion including a side surface on which the pair of terminal electrodes are disposed. The second portion includes a material having a relative permittivity lower than a relative permittivity of the resin and is disposed between the coil and the pair of terminal electrodes.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: June 24, 2025
    Assignee: TDK CORPORATION
    Inventors: Junichiro Urabe, Hajime Kato, Toshinori Matsuura, Kazuya Tobita, Yuto Shiga, Yuichi Takubo, Youichi Kazuta, Noriaki Hamachi
  • Patent number: 12322538
    Abstract: A multilayer inductor includes: an element body formed by stacking a plurality of layers of insulators in a stacking direction; a terminal electrode provided on at least one side surface of the element body; and a linear conductor portion provided in the element body and extending in a first direction, wherein, as viewed from a second direction perpendicular to the first direction, the conductor portion has a first portion in a region overlapping the terminal electrode and a second portion in a region not overlapping the terminal electrode, and wherein a width of the first portion as viewed from the second direction is smaller than a width of the second portion.
    Type: Grant
    Filed: January 5, 2022
    Date of Patent: June 3, 2025
    Assignee: TDK CORPORATION
    Inventors: Noriaki Hamachi, Toshinori Matsuura, Junichiro Urabe, Kazuya Tobita, Yuto Shiga, Youichi Kazuta, Yuichi Takubo
  • Patent number: 12293864
    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: Grant
    Filed: October 18, 2021
    Date of Patent: May 6, 2025
    Assignee: TDK CORPORATION
    Inventors: Nobuyuki Okuzawa, Kazuhiko Ito, Munehiro Takaku, Junichiro Urabe
  • Patent number: 12272487
    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: Grant
    Filed: February 17, 2021
    Date of Patent: April 8, 2025
    Assignee: TDK CORPORATION
    Inventors: Hajime Kato, Junichiro Urabe, Yuto Shiga, Kazuya Tobita, Youichi Kazuta, Noriaki Hamachi, Toshinori Matsuura, Yuichi Takubo, Munehiro Takaku
  • Patent number: 12170163
    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: Grant
    Filed: October 18, 2021
    Date of Patent: December 17, 2024
    Assignee: TDK Corporation
    Inventors: Nobuyuki Okuzawa, Kazuhiko Ito, Munehiro Takaku, Junichiro Urabe
  • Patent number: 12080471
    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: Grant
    Filed: February 3, 2021
    Date of Patent: September 3, 2024
    Assignee: 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: 12020850
    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: Grant
    Filed: March 3, 2021
    Date of Patent: June 25, 2024
    Assignee: TDK CORPORATION
    Inventors: Yuto Shiga, Hajime Kato, Junichiro Urabe, Kazuya Tobita, Youichi Kazuta, Noriaki Hamachi, Toshinori Matsuura, Yuichi Takubo
  • Publication number: 20240128018
    Abstract: A high-frequency coil component includes a sealing portion containing a resin and a plurality of hollow particles, and a coil portion composed of a wound conductive wire. The coil portion is sealed in the sealing portion. The resin includes a low-dielectric resin having a relative permittivity ?r1 of 2.00 or more and less than 3.00 at 23±2° C. A mass of the resin is represented by Mr. A total mass of the plurality of hollow particles is represented by Mp. Mr/(Mr+Mp) is 25% or more and 85% or less.
    Type: Application
    Filed: October 11, 2023
    Publication date: April 18, 2024
    Applicant: TDK CORPORATION
    Inventors: Shigeki YANAGIDA, Masashi GOTOH, Shintarou KOIKE, Junichiro URABE
  • Publication number: 20240120140
    Abstract: A plurality of through-hole conductors include a first through-hole conductor and a second through-hole conductor between coil conductors adjacent each other. Each of the first through-hole conductor and the second through-hole conductor includes a first end and a second end. The first end included in the second through-hole conductor is coupled to the second end included in the first through-hole conductor, and has a width larger than a width of the second end included in the first through-hole conductor. The first end included in the first through-hole conductor has a width larger than the width of the second end included in the first through-hole conductor. The second end included in the second through-hole conductor has a width smaller than the width of the first end included in the second through-hole conductor.
    Type: Application
    Filed: June 15, 2023
    Publication date: April 11, 2024
    Applicant: TDK CORPORATION
    Inventors: Noriaki HAMACHI, Toshinori MATSUURA, Junichiro URABE, Kota OIKAWA, Yuto SHIGA, Youichi KAZUTA, Yuichi TAKUBO, Shunya SUZUKI, Xuran GUO, So KOBAYASHI
  • Publication number: 20240087798
    Abstract: A coil component includes a coil configured of a winding, an exterior body provided to cover the coil, and a terminal part configured to be continuous with the winding. A proximal end portion of the terminal part is buried in the exterior body. A distal end portion ahead of the proximal end portion is bent from the proximal end portion and located outside a mounting surface of the exterior body along the mounting surface.
    Type: Application
    Filed: April 20, 2023
    Publication date: March 14, 2024
    Applicant: TDK CORPORATION
    Inventors: Junichiro URABE, Toshinori MATSUURA, Hajime KATO, Shintarou KOIKE, Kazushige TOHTA, Takuto KAZAMA, Masashi GOTOH
  • Patent number: 11842844
    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: Grant
    Filed: February 3, 2021
    Date of Patent: December 12, 2023
    Assignee: 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: 20230326661
    Abstract: The mainline pattern and the pair of bypass patterns in the multilayer inductor can be regarded as three inductors connected in parallel in the element body. That is, in the multilayer inductor, paralleling of the inductance is realized in the element body by the mainline pattern and the pair of bypass patterns. Therefore, the inductance value of the multilayer inductor as a whole can be reduced.
    Type: Application
    Filed: March 22, 2023
    Publication date: October 12, 2023
    Applicant: TDK CORPORATION
    Inventors: Noriaki HAMACHI, Toshinori MATSUURA, Junichiro URABE, Kazuya TOBITA, Yuto SHIGA, Youichi KAZUTA, Yuichi TAKUBO, Shunya SUZUKI, Xuran GUO, So KOBAYASHI