Patents Assigned to TDK Corporation
  • Publication number: 20220376168
    Abstract: A magnetic domain wall movement element includes a magnetic recording layer which includes a ferromagnetic material; a non-magnetic layer which is laminated on the magnetic recording layer; and a magnetization reference layer which is laminated on the non-magnetic layer, in which the magnetic recording layer has a first ferromagnetic layer, a spacer layer, and a second ferromagnetic layer in order from the non-magnetic layer, a magnetization of the first ferromagnetic layer and a magnetization of the second ferromagnetic layer are antiferromagnetically coupled, and an electrical resistivity of the first ferromagnetic layer is higher than the electrical resistivity of the second ferromagnetic layer.
    Type: Application
    Filed: February 20, 2020
    Publication date: November 24, 2022
    Applicant: TDK CORPORATION
    Inventor: Shogo YAMADA
  • Publication number: 20220376163
    Abstract: A multilayer piezoelectric element includes a piezoelectric body containing a piezoelectric ceramic material, a first electrode, and a second electrode. The piezoelectric body includes a first main surface and a second main surface opposing each other. The first electrode includes an external electrode formed on the first main surface. The second electrode includes an internal electrode formed inside the piezoelectric body to oppose the external electrode. The piezoelectric body includes an active region between the external electrode and the internal electrode, and includes an inactive region opposite to the active region with the internal electrode interposed therebetween. A stress received by the piezoelectric body from the external electrode is larger than a stress received by the piezoelectric body from the internal electrode. A polarization direction of the active region is a direction directed from the external electrode to the internal electrode.
    Type: Application
    Filed: December 11, 2020
    Publication date: November 24, 2022
    Applicant: TDK Corporation
    Inventor: Shuto ONO
  • Publication number: 20220372119
    Abstract: An anti-8-OHdG antibody and an antibody fragment thereof, with which 8-hydroxy-2?-deoxyguanosine (8-OHdG) in a specimen, particularly urine, can be accurately analyzed, and a measuring method capable of measuring 8-OHdG in a specimen, particularly urine, with high sensitivity are provided. An anti-8-OHdG antibody or an antibody fragment thereof which reacts specifically with 8-OHdG and substantially does not react with urea; the antibody or antibody fragment thereof in which the complementarity-determining regions of the variable regions of heavy and light chains are specific amino acid sequences; and a measuring method for 8-OHdG in a specimen using the antibody or antibody fragment thereof are disclosed.
    Type: Application
    Filed: October 6, 2020
    Publication date: November 24, 2022
    Applicant: TDK CORPORATION
    Inventors: Takeshi SAKAMOTO, Hiroko YANAGISAWA, Toshiaki MARUYAMA, Shigeru CJ OKUMURA
  • Publication number: 20220375675
    Abstract: A coil-embedded magnetic core capable of achieving improvements both in insulation and initial magnetic permeability, and coil devices thereof. The coil-embedded magnetic core embedding a coil made of a conductor, including magnetic powder and a resin, in which the coil-embedded magnetic core further includes a modifier.
    Type: Application
    Filed: May 10, 2022
    Publication date: November 24, 2022
    Applicant: TDK CORPORATION
    Inventors: Kentaro SAITO, Shota OTSUKA, Kyohei TONOYAMA, Tomonaga NISHIKAWA, Mitsuo NATORI, Yuuichi KAWAGUCHI, Junichi SHIMAMURA
  • Publication number: 20220373620
    Abstract: A magnetic sensor includes at least one MR element and a coil. The coil includes at least one conductor portion. The at least one conductor portion is each located at a position such that a partial magnetic field generated by the conductor portion is applied to one of the at least one MR element, the one corresponding to the conductor portion, and extends along an imaginary curve curving to protrude in a direction away from the corresponding MR element.
    Type: Application
    Filed: August 5, 2022
    Publication date: November 24, 2022
    Applicant: TDK CORPORATION
    Inventors: Kenzo MAKINO, Norikazu OTA
  • Publication number: 20220375689
    Abstract: An element body includes a principal surface arranged to constitute a mounting surface and a first side surface adjacent to the principal surface. An external electrode includes a first electrode portion disposed on the principal surface and a second electrode portion disposed on the first side surface. The first electrode portion includes a sintered metal layer, a conductive resin layer formed on the sintered metal layer, and a plating layer formed on the conductive resin layer. The second electrode portion includes a first region and a second region. The first region includes a sintered metal layer and a plating layer formed on the sintered metal layer. The second region includes a sintered metal layer, a conductive resin layer formed on the sintered metal layer, and a plating layer formed on the conductive resin layer. The second region is located closer to the principal surface than the first region.
    Type: Application
    Filed: August 4, 2022
    Publication date: November 24, 2022
    Applicant: TDK CORPORATION
    Inventors: Shinya ONODERA, Koki ITO, Hideki KANEKO
  • Patent number: 11508521
    Abstract: A metal terminal-equipped electronic component includes: an electronic component having a terminal electrode; a conductive cloth member joined to the terminal electrode as a metal terminal; and a cushioning member supporting the electronic component and the cloth member, in which the cloth member is joined to at least a mounting surface of the cushioning member and a joint surface of the cushioning member to which the electronic component is joined, and the terminal electrode of the electronic component is joined to the cloth member on the joint surface of the cushioning member.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: November 22, 2022
    Assignee: TDK CORPORATION
    Inventor: Kosuke Yazawa
  • Patent number: 11508520
    Abstract: An electronic component includes an element body and an external electrode disposed on the element body. The external electrode includes a conductive resin layer and a plating layer disposed on the conductive resin layer. The conductive resin layer includes a surface partially provided with a resin lump including an electrically insulating resin. The resin lump includes a surface exposed from the plating layer.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: November 22, 2022
    Assignee: TDK CORPORATION
    Inventor: Shinya Onodera
  • Patent number: 11508511
    Abstract: A coil device includes a pair of first core and second core, a third core, and a pair of first coil and second coil. The third core is disposed next to the first core or the second core. The pair of first coil and second coil is each disposed between any two of the first core, the second core, and the third core next to each other. Plate surfaces of the first coil and the second coil are opposed to each other. Each of the first coil and the second coil is partly exposed in a lateral direction of the first core, the second core, or the third core.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: November 22, 2022
    Assignee: TDK CORPORATION
    Inventors: Chen Wang, Satoshi Sugimoto, Leo Yao
  • Patent number: 11508518
    Abstract: A coil device includes a core and a plurality of coils arranged in the core. A distance of a second gap formed by portions of the core located inside at least one of the coils is larger than that of a first gap formed by other portions of the core located between the coils next to each other.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: November 22, 2022
    Assignee: TDK CORPORATION
    Inventors: Chen Wang, Satoshi Sugimoto, Leo Yao
  • Patent number: 11505694
    Abstract: A resin composition including: a thermosetting resin component including a mesogen; and a phosphorus atom-containing thermoplastic polymer type frame retardant, wherein the thermoplastic polymer type frame retardant is a phosphorous atom-containing formed by polymerizing or copolymerizing one of monomers represented by general formulae (1) and (2) below, wherein, in the general formulae (1) and (2), each of R1 and R2 is any one of an alkyl group, an alkoxy group, an aryl group and an aryloxy group, R1 and R2 being different or identical, and R3 is a methyl group or a hydrogen atom.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: November 22, 2022
    Assignee: TDK CORPORATION
    Inventors: Takashi Inagaki, Junpei Hayama
  • Patent number: 11506733
    Abstract: A magnetic sensor comprises a magnetoresistive effect element including a first side surface and a second side surface facing in opposite directions along a first axis and a first end surface and a second end surface facing in opposite directions along a second axis substantially orthogonal to the first axis. The sensor has a sensitivity axis extending in a direction of the first axis, a first yoke unit provided adjacent to the first side surface of the magnetoresistive effect element, and a first bias magnetic field generation unit provided adjacent to the first end surface of the magnetoresistive effect element. The first bias magnetic field generation unit is provided to be capable of applying a bias magnetic field on the magnetoresistive effect element and the first yoke unit.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: November 22, 2022
    Assignee: TDK Corporation
    Inventors: Kenichi Takano, Tsuyoshi Umehara, Yuta Saito, Hiraku Hirabayashi
  • Patent number: 11510292
    Abstract: A transparent conductor includes a transparent substrate, a first metal oxide layer, a metal layer containing a silver alloy, a third metal oxide layer, and a second metal oxide layer in the order presented. The first metal oxide layer is composed of a metal oxide which is different from ITO, the second metal oxide layer contains ITO, and the work function of the surface of the second metal oxide layer opposite to the metal layer side is 4.5 eV or higher.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: November 22, 2022
    Assignee: TDK CORPORATION
    Inventors: Hiroshi Shingai, Akinori Nishizawa, Shouhei Harada
  • Patent number: 11508494
    Abstract: A dielectric composition contains a complex oxide represented by a composition formula of BixZnyNbzO1.75+?. x+y+z=1.00. x<0.20. 0.20?y?0.50. 0.25?x/z. A dielectric composition contains a complex oxide represented by a composition formula of BixZnyNbzO1.75+?. x+y+z=1.00. 0.20?y?0.50. 1.5<x/z?3.0. z<0.25.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: November 22, 2022
    Assignee: TDK CORPORATION
    Inventors: Shota Suzuki, Nobuyuki Okuzawa
  • Patent number: 11506514
    Abstract: The magnetic sensor of the invention has an element portion that is elongate, that exhibits magnetoresistive effect and that has a magnetically sensitive axis in a direction of a short axis thereof. The element portion is non-oval and can be arranged in an imaginary ellipse, wherein the imaginary ellipse has a major axis that connects both ends of the element portion with regard to a direction of a long axis thereof to each other and a minor axis that connects both ends of the element portion with regard to a direction of the short axis thereof to each other, as viewed in a direction that is perpendicular both to the short axis and to the long axis of the element portion.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: November 22, 2022
    Assignee: TDK Corporation
    Inventors: Keisuke Uchida, Kazuya Watanabe
  • Patent number: 11506729
    Abstract: A magnetic sensor for detecting magnetism generated from a conductor in which a current flows in a first direction includes a magnetic detection unit capable of detecting the magnetism, a magnetization core, and a magnetic shield. The magnetization core includes a first core section, which is substantially parallel to the first direction, and a second core section and third core section, which are each continuous from both end portions of the first core section in a second direction that is orthogonal to the first direction. The second core section and the third core section each extend from an end portion of the first core section to follow a third direction that is orthogonal to the first direction and the second direction. The magnetic detection unit has a sensitivity direction in the second direction and is positioned in a core gap sandwiched between the vicinity of the end portion of the second core section and the vicinity of the end portion of the third core section in the third direction.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: November 22, 2022
    Assignee: TDK Corporation
    Inventors: Hiroyuki Hirano, Makoto Takahashi, Ryoichi Menju
  • Patent number: 11506727
    Abstract: Magnetic field generating unit 2 is fixed to object 7 that moves relative to magnetic field detecting means 3. Magnetic field generating unit 3 has magnetic field generator 4, first support structure 5 that is fixed to object 7 and second support structure 6 that is independent of first support structure 5. Second support structure 6 is supported by first support structure 5 and supports magnetic field generator 4. For example, second support structure 6 is formed of a nonmagnetic material, and magnetic field generator 4 is arranged away from first support structure 5.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: November 22, 2022
    Assignee: TDK Corporation
    Inventors: Takahiro Moriya, Toshio Ishikawara, Toshihiko Oyama
  • Patent number: 11508502
    Abstract: A soft magnetic alloy or the like combining high saturated magnetic flux density, low coercive force and high magnetic permeability ?? having the composition formula (Fe(1?(?+?))X1?X2?)(1?(a+b+c+d+e))BaSibCcCudMe. X1 is one more elements selected from the group consisting of Co and Ni, X2 is one or more elements selected from the group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, O and rare earth elements, and M is one or more elements selected from the group consisting of Nb, Hf, Zr, Ta, Ti, Mo, W and V. 0.140<a?0.240, 0?b?0.030, 0<c<0.080, 0<d?0.020, 0?e?0.030, ??0, ??0, and 0??+??0.50 are satisfied.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: November 22, 2022
    Assignee: TDK CORPORATION
    Inventors: Akihiro Harada, Akito Hasegawa, Kazuhiro Yoshidome, Kenji Horino, Hiroyuki Matsumoto
  • Publication number: 20220367846
    Abstract: An all-solid-state battery includes a positive electrode layer, a negative electrode layer, and a solid electrolyte layer positioned between the positive electrode layer and the negative electrode layer, the positive electrode layer includes a positive electrode current collector and a positive electrode active material layer which is in contact with the positive electrode current collector, the negative electrode layer includes a negative electrode current collector and a negative electrode active material layer which is in contact with the negative electrode current collector, at least one of the positive electrode active material layer and the negative electrode active material layer has a plurality of voids and a plurality of carbon materials therein, and 8% or more of the plurality of voids are in contact with any of the plurality of carbon materials.
    Type: Application
    Filed: September 29, 2020
    Publication date: November 17, 2022
    Applicant: TDK CORPORATION
    Inventors: Teiichi TANAKA, Takeo TSUKADA
  • Publication number: 20220367785
    Abstract: A piezoelectric thin film includes a first piezoelectric layer and a second piezoelectric layer directly stacked on the first piezoelectric layer. The first piezoelectric layer contains a tetragonal crystal 1 of a perovskite-type oxide. The second piezoelectric layer contains a tetragonal crystal 2 of a perovskite-type oxide. A (001) plane of the tetragonal crystal 1 is oriented in a normal direction do of a surface of the piezoelectric thin film. A (001) plane of the tetragonal crystal 2 is oriented in the normal direction dn of the surface of the piezoelectric thin film. An interval of the (001) plane of the tetragonal crystal 1 is c1, an interval of a (100) plane of the tetragonal crystal 1 is a1, an interval of the (001) plane of the tetragonal crystal 2 is c2, an interval of a (100) plane of the tetragonal crystal 2 is a2, c2/a2 is more than c1/a1 and c1/a1 is from 1.015 to 1.050.
    Type: Application
    Filed: March 1, 2022
    Publication date: November 17, 2022
    Applicant: TDK Corporation
    Inventor: Junpei MORISHITA