Patents Assigned to TDK Corporation
  • Publication number: 20230419094
    Abstract: A reservoir element according to an embodiment is a reservoir element including a ring-shaped reservoir constituted by a single nonlinear element and a plurality of delay elements, in which the nonlinear element has a nonlinear modulation function, the nonlinear element being controllable by a time-varying parameter capable of dynamically changing the nonlinear modulation function, and the reservoir element includes a control unit that controls the time-varying parameter in accordance with a time series having a cycle corresponding to the number of stages of the nonlinear element and the delay elements.
    Type: Application
    Filed: December 3, 2020
    Publication date: December 28, 2023
    Applicant: TDK CORPORATION
    Inventor: Kazuki NAKADA
  • Publication number: 20230417846
    Abstract: A magnetic sensor device includes a first chip including a first magnetic sensor, a second chip including a second magnetic sensor and a third magnetic sensor, and a support having a reference plane. The first magnetic sensor includes at least one first magnetic detection element, and detects a first component of an external magnetic field. The second magnetic sensor includes at least one second magnetic detection element, and detects a second component of the external magnetic field. The third magnetic sensor includes at least one third magnetic detection element, and detects a third component of the external magnetic field. The first chip and the second chip are mounted on the reference plane.
    Type: Application
    Filed: September 7, 2023
    Publication date: December 28, 2023
    Applicant: TDK CORPORATION
    Inventors: Kenzo MAKINO, Shuhei MIYAZAKI
  • Publication number: 20230416905
    Abstract: A film deposition system according to the present embodiment includes a film deposition apparatus, and a computer, in which the film deposition apparatus includes a film deposition chamber in which a plurality of deposition species are installable, and the computer includes a calculation region that calculates based on a calculation model having an Ising model or QUBO, and predict a time required for film deposition when a disposition of the deposition species is set.
    Type: Application
    Filed: June 15, 2021
    Publication date: December 28, 2023
    Applicant: TDK CORPORATION
    Inventors: Tsuyoshi SUZUKI, Katsuyuki NAKADA, Tomoyuki SASAKI
  • Publication number: 20230420188
    Abstract: An electronic device comprises a chip component including a terminal electrode, a case having an accommodation recess accommodating the chip component, a conductive terminal attached to the case and connected to the terminal electrode, and a case cover disposed on an opening-edge surface of the case so as to cover the accommodation recess. The opening-edge surface has an opening-edge recess at least partly covered by the case cover. The opening-edge recess and the case cover have a space therebetween. The space is filled with a resin.
    Type: Application
    Filed: June 8, 2023
    Publication date: December 28, 2023
    Applicant: TDK CORPORATION
    Inventors: Akihiro MASUDA, Takaaki SATO, Norihisa ANDO, Shinya ITO, Kosuke YAZAWA
  • Publication number: 20230420272
    Abstract: A gas purge unit including: a first purge nozzle in which a gas flow path is internally formed, which communicates with a first purge port at the bottom of a container, and which introduces gas into the container or discharges gas from the container; a first communication unit which has a first holding unit for holding the first purge nozzle at one end; and a first actuator to which the first communication unit is connected and which moves the first communication unit and the first purge nozzle vertically.
    Type: Application
    Filed: October 8, 2021
    Publication date: December 28, 2023
    Applicant: TDK CORPORATION
    Inventors: Tatsuhiro KOTSUGAI, Jun EMOTO, Takuya KUDO
  • Publication number: 20230416460
    Abstract: A compound having a chain structure consisting of an aromatic ring group, an ether oxygen atom, a methylene group, an aromatic ring group, a methylene group, an ether oxygen atom, and an aromatic ring group bonded in an order, wherein a hydroxymethyl group is bonded to a carbon atom of the aromatic ring group disposed at a first end of the chain structure, and one end group selected from a hydroxyl group, an amino group, an amide group, and a carboxyl group is bonded to a carbon atom of the aromatic ring group disposed at a second end of the chain structure.
    Type: Application
    Filed: February 25, 2022
    Publication date: December 28, 2023
    Applicant: TDK CORPORATION
    Inventors: Takashi INAGAKI, Hiroshi ITO
  • Publication number: 20230420174
    Abstract: A magnetic core includes metal magnetic particles. A total area percentage of the metal magnetic particles in a cross section of the magnetic core is 75% or more and 90% or less. The metal magnetic particles include first particles whose Haywood diameters in the cross section of the magnetic core are 3 ?m or more and second particles whose Haywood diameters in the cross section of the magnetic core are less than 3 ?m. The second particles include two or more types of small particles with different compositions of films existing on their particle surfaces.
    Type: Application
    Filed: June 22, 2023
    Publication date: December 28, 2023
    Applicant: TDK CORPORATION
    Inventors: Kazuhiro YOSHIDOME, Satoko MORI, Hiroyuki MATSUMOTO
  • Publication number: 20230420172
    Abstract: A multilayer coil component includes an element body having a multilayer structure including a first element body portion formed of a ferrite element body material, and a second element body portion laminated on the first element body portion and formed of a ferrite element body material having a composition different from the ferrite element body material forming the first element body portion, a multilayer coil having an axis parallel to a lamination direction of the element body, and a stress alleviation portion provided in an inner region of the multilayer coil when viewed from the lamination direction. In the multilayer coil component, the stress alleviation portion is provided in the inner region of the multilayer coil in which a stress tends to be concentrated to alleviate the stress in the inner region of the multilayer coil, and thereby occurrence of cracking in the element body can be suppressed.
    Type: Application
    Filed: September 13, 2023
    Publication date: December 28, 2023
    Applicant: TDK CORPORATION
    Inventors: Hidekazu SATO, Takahiro SATO, Hitoshi KUDO, Takashi ENDO, Yusuke NAGAI, Tatsuro SUZUKI, Hiroko KORIKAWA, Kenji KOMORITA
  • Publication number: 20230420186
    Abstract: A dielectric device includes a first electrode, dielectric film, and second electrode, which are laminated. The dielectric film includes columnar crystals extending in a lamination direction. Provided that “x” denotes a reciprocal (1/?m) of a dielectric film thickness and “y” denotes a dielectric material average crystallite size (nm) calculated by the Scherrer equation, “x” and “y” are located within a quadrilateral having point A (0.10, 5), point B (10, 20), point C (10, 35), and point D (0.10, 10) as vertices. Alternatively, the columnar crystals have an average width of less than 40 nm within a distance range from one tenth to one third of the dielectric film thickness from one electrode to the other and an average width of 40 nm or more within a distance range from one tenth to one third of the dielectric film thickness from the other electrode to the one in the lamination direction.
    Type: Application
    Filed: December 14, 2022
    Publication date: December 28, 2023
    Applicant: TDK CORPORATION
    Inventors: Masahiro HIRAOKA, Hitoshi SAITA
  • Patent number: 11855253
    Abstract: A solid electrolyte, in which an occupied impurity level that is formed by a part of elements contained in a mobile ion-containing material being substituted and that is occupied by electrons is included in a band gap of the mobile ion-containing material, and an amount of charge retention per composition formula of the occupied impurity level is equal to or greater than an amount of charge retention of mobile ions per composition formula of the mobile ion-containing material.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: December 26, 2023
    Assignee: TDK CORPORATION
    Inventors: Takashi Sasaki, Tetsuya Ueno, Gakuho Isomichi
  • Patent number: 11854732
    Abstract: Disclosed herein is an apparatus that includes a substrate having first and second surfaces opposite to each other, a first coil pattern formed on the first surface of the substrate, and a second coil pattern formed on the second surface of the substrate. The first coil pattern includes first and second lines, and the second coil pattern includes third and fourth lines. The first line is greater in a number of turn than the second line, and the third line is greater in a number of turn than the fourth line. The first line is connected to the fourth line, and the third line is connected to the second line.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: December 26, 2023
    Assignee: TDK Corporation
    Inventors: Junpei Hayama, Noritaka Chiyo, Shigeru Kaneko, Tomohiro Moriki, Takahiro Ohishi, Toshio Tomonari
  • Patent number: 11852697
    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 17, 2022
    Date of Patent: December 26, 2023
    Assignee: TDK Corporation
    Inventors: Hiroyuki Hirano, Makoto Takahashi, Ryoichi Menju
  • Patent number: 11854725
    Abstract: A method for producing soft magnetic metal powder includes: a raw material powder preparing step of preparing metal raw material powder having metal raw material particles including iron, silicon, and boron; a mixture step of mixing the metal raw material powder and a carbon source substance and obtaining mixed powder; and a heat treatment step of performing heat treatment on the mixed powder in a non-oxidizing atmosphere containing nitrogen at a heat treatment temperature of 1,250° C. or higher and making the metal raw material particles spherical.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: December 26, 2023
    Assignee: TDK CORPORATION
    Inventors: Tomofumi Kuroda, Yu Sakurai, Tomohisa Mitose
  • Patent number: 11855035
    Abstract: A stack of electrical components has a first electrical component having a first surface, a second surface that is opposite to the first surface and a side surface that is located between the first surface and the second surface; a second electrical component having a third surface on which the first electrical component is mounted, the third surface facing the second surface and forming a corner portion between the third surface and the side surface; an adhesive layer that bonds the first electrical component to the second electrical component, the adhesive layer has a first portion that is located between the second and third surface and a second portion that is made of a same material as the first portion and that fills the corner portion; and a conductive layer that extends on a side of the side surface, curves along the second portion and extends to the third surface.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: December 26, 2023
    Assignee: TDK Corporation
    Inventors: Yohei Hirota, Hiroshi Yamazaki, Hitoshi Iwama, Yusuke Takahashi
  • Patent number: 11854733
    Abstract: In a coil component, a double coil is configured of a first coil portion and a second coil portion, and a first through conductor of the first coil portion and a second through conductor of the second coil portion are adjacent to each other. Thus, the first coil portion and the second coil portion have enhanced magnetic coupling at locations (that is, the first through conductor and the second through conductor) at which planar coil patterns of upper and lower surfaces of an insulating substrate are connected, in addition to magnetic coupling in the planar coil patterns wound around a through hole. Therefore, according to the coil component, a high coupling coefficient between the first coil portion and the second coil portion is realized.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: December 26, 2023
    Assignee: TDK CORPORATION
    Inventors: Masataro Saito, Masazumi Arata, Hokuto Eda, Kohei Takahashi, Takamasa Iwasaki
  • Patent number: 11854743
    Abstract: A dielectric composition includes main-phase particles each including a main component having a perovskite crystal structure represented by a general formula of ABO3. At least a part of the main-phase particles has a core-shell structure. The dielectric composition includes RA, RB, M, and Si. Each of A, B, RA, RB, and M is one or more elements selected from a specific element group. SRA/SRB>CRA/CRB is satisfied, where CRA is an RA content (mol %) to the main component in terms of RA2O3, and CRB is an RB content (mol %) to the main component in terms of RB2O3, in the dielectric composition, and SRA is an average RA content (mol %), and SRB is an average RB content (mol %), in a shell part of the core-shell structure.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: December 26, 2023
    Assignee: TDK CORPORATION
    Inventors: Taku Murakami, Nobuto Morigasaki, Takuma Ariizumi, Toshihiko Kaneko, Yasuhiro Ito
  • Patent number: 11854730
    Abstract: There is provided a coil component including a coil portion that has at least one layer of planar coil including a coil-wound portion and an insulative layer which covers the periphery of the coil-wound portion, a covering portion that covers the coil portion and is constituted of a mixture including magnetic fillers and resin, and a conductor post that is penetratingly provided inside the covering portion and extends from the coil-wound portion to an upper surface of the covering portion along an axial direction of the planar coil. The conductor post has a post portion which extends from the coil-wound portion in the axial direction of the planar coil, and a lid portion which is exposed from the covering portion and extends from an end portion of the post portion on the upper surface side along a surface direction of the upper surface.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: December 26, 2023
    Assignee: TDK CORPORATION
    Inventors: Makoto Endo, Mitsunori Hiraoka, Kazuhiko Ito
  • Publication number: 20230411069
    Abstract: An electronic component includes an element body, an electric element embedded inside the element body, and an electrode terminal connected to the electric element so as to be exposed to an outer surface of the element body. The electrode terminal includes a terminal body continuously and integrally formed with a wire of the electric element embedded inside the element body and extending in a planar shape along a main surface of the element body. The wire is drawn out to an outside of the element body from the main surface of the element body to form the electrode terminal.
    Type: Application
    Filed: May 19, 2023
    Publication date: December 21, 2023
    Applicant: TDK CORPORATION
    Inventors: Shintarou KOIKE, Kazushige TOHTA, Takuto KAZAMA, Masashi GOTOH
  • Publication number: 20230411077
    Abstract: The electronic device includes: a case including a recessed portion and an opening edge portion of the recessed portion; a ceramic element arranged in the recessed portion, having a first main surface and a second main surface facing each other, and including a first electrode portion formed on the first main surface and a second electrode portion formed on the second main surface; a first metal terminal including a first mounting portion, arranged in the opening edge portion and approximately horizontal with respect to the first main surface and the second main surface, and a first electrode connection portion connected to the first electrode portion; and a second metal terminal including a second mounting portion, arranged in the opening edge portion and approximately horizontal with respect to the first main surface and the second main surface, and a second electrode connection portion connected to the second electrode portion.
    Type: Application
    Filed: June 8, 2023
    Publication date: December 21, 2023
    Applicant: TDK CORPORATION
    Inventors: Akihiro MASUDA, Shinya ITO, Norihisa ANDO, Hideki KANEKO, Ken ABURAKAWA, Kenya TAMAKI, Akitoshi YOSHII
  • Publication number: 20230408605
    Abstract: A magnetic field detection device includes a base, a first yoke, and a magneto-resistive effect element. The first yoke is provided on the base, and includes first and second principal surfaces each extending along a first plane, and a first end surface coupling the first and second principal surfaces. The magneto-resistive effect element is provided on the base, and includes a magnetization free layer disposed at a position overlapped with the first yoke in a first direction along the first plane. The first end surface includes an inverted tapered surface inclined relative to the first plane and extending closer to a center point of the magnetization free layer as being away from the base in a second direction orthogonal to the first plane. A distance from the center point to a first edge is shorter than a distance from the center point to a second edge.
    Type: Application
    Filed: August 31, 2023
    Publication date: December 21, 2023
    Applicant: TDK CORPORATION
    Inventors: Yoshiaki TANAKA, Tetsuya HIRAKI, Kazuya WATANABE, Suguru WATANABE