Patents by Inventor Yuichi TAKUBO

Yuichi TAKUBO 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: 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
  • Publication number: 20240266097
    Abstract: The electronic component includes an element body, a first external electrode, and a second external electrode. The first external electrode and the second external electrode are disposed on a principal surface and are separated from each other in a first direction. The first external electrode includes a first region and a second region. The first region includes an end edge that opposes the second external electrode in the first direction and is located inside the element body. The second region is continuous with the first region and is exposed from the principal surface. The second external electrode includes a third region and a fourth region. The third region includes an edge that opposes the first region in the first direction and is located inside the element body. The fourth region is continuous with the third region and is exposed from the principal surface.
    Type: Application
    Filed: January 30, 2024
    Publication date: August 8, 2024
    Applicant: TDK Corporation
    Inventors: Xuran GUO, Youichi Kazuta, Kazuya Tobita, Yuto Shiga, Yuichi Takubo, So Kobayashi, Hiroto Komatsu, Toru Yaginuma
  • Publication number: 20240266108
    Abstract: An electronic component includes an element body including a first principal surface and a second principal surface opposing each other, and first and second external electrodes disposed on the first principal surface and separated from each other. The element body includes a first region including the first principal surface and a second region located between the first region and the second principal surface. The first region includes a portion located between the first and second external electrodes. The portion included in the first region is in contact with the first and second external electrodes. When viewed in a direction in which the first principal surface and the second principal surface oppose each other, the portion included in the first region covers an end of each of the first and second external electrodes. The first region has hardness greater than that of the second region.
    Type: Application
    Filed: January 29, 2024
    Publication date: August 8, 2024
    Applicant: TDK Corporation
    Inventors: Youichi KAZUTA, Kazuya TOBITA, Yuto SHIGA, Yuichi TAKUBO, Xuran GUO, So KOBAYASHI, Hiroto KOMATSU, Toru YAGINUMA
  • Publication number: 20240234014
    Abstract: A coil component includes an element body, a coil, a first terminal electrode, and a second terminal electrode. The coil has a coil axis extending in a direction in which a pair of side surfaces face each other. The first terminal electrode and the second terminal electrode have first electrode portions exposed on end surfaces and second electrode portions exposed on a main surface, respectively, and are not exposed on each of the pair of side surfaces. In a direction in which a pair of main surfaces face each other, a distance between each of ends of the first electrode portions on the main surface side and the main surface is larger than a distance between a top portion of the coil closest to the main surface and the main surface.
    Type: Application
    Filed: July 28, 2023
    Publication date: July 11, 2024
    Applicant: TDK CORPORATION
    Inventors: So KOBAYASHI, Youichi KAZUTA, Yuto SHIGA, Yuichi TAKUBO, Xuran GUO, Toru YAGINUMA
  • 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: 20240136112
    Abstract: A coil component includes an element body, a coil, a first terminal electrode, and a second terminal electrode. The coil has a coil axis extending in a direction in which a pair of side surfaces face each other. The first terminal electrode and the second terminal electrode have first electrode portions exposed on end surfaces and second electrode portions exposed on a main surface, respectively, and are not exposed on each of the pair of side surfaces. In a direction in which a pair of main surfaces face each other, a distance between each of ends of the first electrode portions on the main surface side and the main surface is larger than a distance between a top portion of the coil closest to the main surface and the main surface.
    Type: Application
    Filed: July 27, 2023
    Publication date: April 25, 2024
    Applicant: TDK CORPORATION
    Inventors: So KOBAYASHI, Youichi KAZUTA, Yuto SHIGA, Yuichi TAKUBO, Xuran GUO, Toru YAGINUMA
  • 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: 20230402216
    Abstract: A coil includes a plurality of coil conductors. The coil includes a plurality of connection portions each at which adjacent coil conductors of the plurality of coil conductors are electrically connected to each other and the adjacent coil conductors overlap each other. The plurality of connection portions include a first connection portion and a second connection portion that is farther from an electrode portion on a main surface than the first connection portion. A second area where the adjacent coil conductors overlap each other in the second connection portion is larger than a first area where the adjacent coil conductors overlap each other in the first connection portion.
    Type: Application
    Filed: May 16, 2023
    Publication date: December 14, 2023
    Applicant: TDK CORPORATION
    Inventors: Yuto SHIGA, So KOBAYASHI, Youichi KAZUTA, Yuichi TAKUBO, Xuran GUO
  • 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
  • Publication number: 20230317360
    Abstract: In the multilayer inductor, the extending direction of the connection portion is a direction along the turn portion when viewed from the extending direction of the coil axis. In this case, the change of the current route at the junction portion between the turn portion and the connection portion becomes gentle. Therefore, the signal loss at the junction portion is reduced, a high Q value can be achieved.
    Type: Application
    Filed: March 22, 2023
    Publication date: October 5, 2023
    Applicant: TDK CORPORATION
    Inventors: Kazuya TOBITA, Xuran GUO, Youichi KAZUTA, Yuichi TAKUBO, Yuto SHIGA, So KOBAYASHI, Toshinori MATSUURA, Noriaki HAMACHI, Junichiro URABE, Shunya SUZUKI
  • Publication number: 20230290561
    Abstract: A multilayer coil component includes an element body including a main surface, first and second external electrodes disposed on the main surface, a coil disposed in the element body, a first connection conductor connecting the first external electrode and the coil, and a second connection conductor connecting the second external electrode and the coil. The second connection conductor includes a pad conductor and a through-hole conductor. The pad conductor and through-hole conductor are separated from the coil. The through-hole conductor includes a connection end connected to the pad conductor. The pad conductor includes a first portion overlapping the entire connection end included in the through-hole conductor and a second portion continuous with the first portion. The second portion is separated from the coil more than the first portion.
    Type: Application
    Filed: December 22, 2022
    Publication date: September 14, 2023
    Applicant: TDK CORPORATION
    Inventors: Xuran GUO, Kazuya TOBITA, Youichi KAZUTA, Yuichi TAKUBO, Yuto SHIGA, So KOBAYASHI, Toshinori MATSUURA, Noriaki HAMACHI, Junichiro URABE, Shunya SUZUKI
  • Publication number: 20230207186
    Abstract: A plurality of electrode conductors included in a first external electrode and a second external electrode of a multilayer coil component includes a first part in a second direction and a second part in a third direction. A first electrode conductor and a third electrode conductor differ in at least any one dimension of four dimensions including a width of the first part, a length of the first part, a width of the second part, and a length of the second part. A second electrode conductor and a fourth electrode conductor differ in at least any one dimension of the four dimensions. The first electrode conductor and the second electrode conductor differ in at least any one dimension of the four dimensions. The third electrode conductor and the fourth electrode conductor differ in at least any one dimension of the four dimensions.
    Type: Application
    Filed: December 21, 2022
    Publication date: June 29, 2023
    Applicant: TDK CORPORATION
    Inventors: Yuto SHIGA, Kazuya TOBITA, Youichi KAZUTA, Yuichi TAKUBO, So KOBAYASHI, Xuran GUO, Shunya SUZUKI
  • Publication number: 20230130960
    Abstract: A multilayer coil component includes an element body including a main surface, a coil disposed in the element body, and an external electrode electrically connected to the coil. The external electrode includes an underlying metal layer disposed on the element body and a plated layer in contact with a surface of the underlying metal layer. The underlying metal layer includes a main surface electrode portion exposed from the main surface. At least one recess that opens to at least a surface of the main surface electrode portion is formed in the main surface electrode portion.
    Type: Application
    Filed: October 19, 2022
    Publication date: April 27, 2023
    Applicant: TDK CORPORATION
    Inventors: Yuto SHIGA, Kazuya TOBITA, Youichi KAZUTA, Yuichi TAKUBO, Toshinori MATSUURA, Junichiro URABE, Noriaki HAMACHI
  • Publication number: 20230119231
    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: Application
    Filed: October 12, 2022
    Publication date: April 20, 2023
    Applicant: TDK Corporation
    Inventors: Youichi KAZUTA, Junichiro URABE, Toshinori MATSUURA, Noriaki HAMACHI, Yuichi TAKUBO, Yuto SHIGA, Kazuya TOBITA
  • Publication number: 20230107587
    Abstract: A multilayer coil component includes an element body, a coil, and an external electrode. The element body includes a main surface, side surfaces opposing each other in a first direction, and end surfaces opposing each other in a second direction. The external electrode is electrically connected to the coil. The coil includes a plurality of coil conductors disposed in the first direction. The external electrode includes a plurality of electrode conductors disposed in the first direction. The plurality of coil conductors include coil conductors positioned in the same layer as the plurality of electrode conductors and coil conductors not positioned in the same layer as any of the plurality of electrode conductors.
    Type: Application
    Filed: October 3, 2022
    Publication date: April 6, 2023
    Applicant: TDK CORPORATION
    Inventors: Yuto SHIGA, Kazuya TOBITA, Youichi KAZUTA, Yuichi TAKUBO, Toshinori MATSUURA, Junichiro URABE, Noriaki HAMACHI
  • Publication number: 20230104422
    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: Application
    Filed: September 27, 2022
    Publication date: April 6, 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
  • Publication number: 20230073373
    Abstract: A coil component includes: an element body including a main surface; a pair of external electrodes disposed on the main surface; and a coil including a coil part positioned in the element body and a pair of connecting parts exposed from the element body and each connected to a corresponding external electrode of the pair of external electrodes. Each of the pair of external electrodes includes a first surface opposing the main surface and a second surface opposing the first surface. Each of the pair of connecting parts includes a first part coupled to the second surface of the corresponding external electrode and a second part continuous with the first part and an end of the coil part.
    Type: Application
    Filed: September 6, 2022
    Publication date: March 9, 2023
    Applicant: TDK CORPORATION
    Inventors: Junichiro URABE, Toshinori MATSUURA, Kazuya TOBITA, Noriaki HAMACHI, Yuichi TAKUBO, Yuto SHIGA, Youichi KAZUTA
  • Patent number: 11594366
    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: Grant
    Filed: October 29, 2021
    Date of Patent: February 28, 2023
    Assignee: TDK CORPORATION
    Inventors: Youichi Kazuta, Yuichi Takubo, Yuto Shiga, Junichiro Urabe, Noriaki Hamachi, Kazuya Tobita, Toshinori Matsuura
  • Publication number: 20220319763
    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: Application
    Filed: March 28, 2022
    Publication date: October 6, 2022
    Applicant: TDK CORPORATION
    Inventors: Kazuya TOBITA, Youichi KAZUTA, Yuto SHIGA, Yuichi TAKUBO, Junichiro URABE, Noriaki HAMACHI, Toshinori MATSUURA