Patents Assigned to Taiyo Yuden Co., Ltd.
  • Patent number: 12131870
    Abstract: A multi-layer ceramic electronic component includes: a ceramic body including internal electrodes laminated and drawn to a surface of the ceramic body; and an external electrode including: a base film disposed on the surface of the ceramic body, connected to the internal electrodes, and formed from an electrically conductive material, a first nickel film disposed on and in contact with the base film in a thickness direction of the base film, and a second nickel film disposed on the first nickel film in a thickness direction of the first nickel film.
    Type: Grant
    Filed: June 9, 2023
    Date of Patent: October 29, 2024
    Assignee: TAIYO YUDEN CO., LTD.
    Inventor: Tomoki Sakai
  • Patent number: 12131869
    Abstract: A multi-layer ceramic electronic component includes a ceramic body and a pair of external electrodes. The ceramic body includes a pair of main surfaces perpendicular to a first axis, a pair of end surfaces perpendicular to a second axis, a pair of side surfaces perpendicular to a third axis, and internal electrodes drawn to the end surfaces, and has a substantially rectangular parallelepiped shape. The external electrodes each include an end-surface-covering portion that covers one of the end surfaces, and a main-surface-covering portion that is formed to be continuous from the end-surface-covering portion and covers a part of the main surface. The main-surface-covering portion includes a conductive resin layer, and first and second convex portions formed on the basis of a shape of the conductive resin layer, each swelling toward the center in the direction of the second axis, and disposed apart from each other in the third axis direction.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: October 29, 2024
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Kiyoshiro Yatagawa, Satoshi Kobayashi
  • Publication number: 20240356066
    Abstract: An all solid battery includes a solid electrolyte layer of a phosphate-based material having a NASICON structure, a positive electrode layer that includes a Co-containing phosphate-based positive electrode active material and a Co-containing phosphate-based solid electrolyte, and a negative electrode layer that includes a negative electrode active material and a solid electrolyte not containing Co.
    Type: Application
    Filed: July 28, 2022
    Publication date: October 24, 2024
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Katsunori YOKOSHIMA, Masashi SEKIGUCHI, Daigo ITO
  • Patent number: 12125644
    Abstract: One aspect of the present invention is a multilayer ceramic capacitor including a plurality of dielectric layers composed of a dielectric ceramic containing grains whose main component is barium titanate having a core-shell structure made up of a core part and a shell part, and grains whose main component is calcium titanate having a core-shell structure made up of a core part and a shell part; and a plurality of internal electrodes stacked alternately with each of the plurality of dielectric layers.
    Type: Grant
    Filed: February 1, 2023
    Date of Patent: October 22, 2024
    Assignee: TAIYO YUDEN CO., LTD
    Inventors: Satoko Namiki, Koichiro Morita, Minoru Ryu, Natsumi Yuzakino
  • Publication number: 20240344950
    Abstract: An odor measuring device includes a sensor substrate having a first main surface having a flow path region constituting a flow path, the flow path region including a first region and a second region, an odor sensor that is mounted on the first region and detects an odorous substance, and a first protective layer provided on the second region.
    Type: Application
    Filed: June 21, 2024
    Publication date: October 17, 2024
    Applicant: TAIYO YUDEN CO., LTD.
    Inventor: Yosuke ONDA
  • Patent number: 12119160
    Abstract: A coil component includes an insulating base body and a coil conductor arranged in the base body and having a winding portion extending around a coil axis. The insulating base body includes a magnetic body portion made of a magnetic material and a magnetic gap portion made of a low-permeability material having a lower relative permeability than the magnetic material. The magnetic gap portion is shaped like a ring when seen in a direction along the coil axis and arranged within the winding portion. The magnetic body portion includes a first region positioned within the winding portion, a second region positioned opposite the first region with respect to the magnetic gap portion in the direction along the coil axis, and a third region arranged within a through hole defined by an inner peripheral surface of the magnetic gap portion, where the third region connects together the first and second regions.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: October 15, 2024
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Natsuko Sato, Takayuki Arai, Atsuko Kasahara, Tomoo Kashiwa
  • Patent number: 12119159
    Abstract: There is provided a passive electronic component that achieves proper recognition of a marker portion thereof that indicates a winding start position and a winding direction of a coil conductor as well as a posture and an orientation of the component. The passive electronic component is a laminated type electronic component and has an insulator portion, a terminal electrode electrically connected to a conductor portion provided inside the insulator portion and formed on a surface of the insulator portion, and a marker portion for indicating a winding start position and a winding direction of a conductor or a posture and an orientation of the component. The marker portion is disposed in a recessed portion on the surface of the insulator portion.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: October 15, 2024
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Ryuichi Kondo, Satoshi Tokunaga, Yukihiro Saida
  • Patent number: 12119166
    Abstract: A method for manufacturing an electronic component comprises a step of forming an intermediate body including an insulator containing a resin and a conductive main body provided inside the insulator. The method further includes a step of forming an external electrode provided on the intermediate body and electrically coupled to the conductive main body. The method further includes a step of oxidizing the conductive main body, after forming the intermediate body including the insulator and the main body provided inside the insulator, to form an outer coating film on at least a part of a peripheral surface of the conductive main body.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: October 15, 2024
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Tsuyoshi Ogino, Takayuki Sekiguchi, Koji Otsuka
  • Patent number: 12119454
    Abstract: An all solid battery includes a multilayer structure in which solid electrolyte layers and internal electrodes are alternately stacked, the plurality of internal electrodes including an electrode active material and a carbon material, the multilayer structure having a rectangular parallelepiped shape, the plurality of internal electrodes being alternately exposed to two different faces of the multilayer structure, a first cover layer provided on an upper face of the multilayer structure in a stacking direction, and a second cover layer provided on a lower face of the multilayer structure in the stacking direction. Each thickness of the plurality of internal electrodes is equal to or more than each thickness of the plurality of solid electrolyte layers. Vickers hardness of the plurality of solid electrolyte layers and Vickers hardness of the first and second cover layers are larger than Vickers hardness of the plurality of internal electrodes.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: October 15, 2024
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Masashi Sekiguchi, Daigo Ito
  • Patent number: 12113176
    Abstract: An all-solid battery includes: a solid electrolyte layer mainly composed of oxide-based solid electrolyte; a first electrode layer formed on a first principal face of the solid electrolyte layer, the first electrode layer containing an active material; a second electrode layer formed on a second principal face of the solid electrolyte layer, the second electrode layer containing another active material, wherein no collector layer that is in contact with the second electrode layer is provided in a direction in which the solid electrolyte layer, the first electrode layer, and the second electrode layer are stacked, and the second electrode layer includes board-shaped carbon.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: October 8, 2024
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Sachie Tomizawa, Daigo Ito, Chie Kawamura
  • Patent number: 12112893
    Abstract: A ceramic electronic component includes a multilayer chip having a substantially rectangular parallelepiped shape and including dielectric layers and internal electrode layers that are alternately stacked, a main component of the dielectric layers being ceramic, a main component of the internal electrode layers being Ni, the internal electrode layers being alternately exposed to two end faces of the multilayer chip opposite to each other, and external electrodes, each of which is provided on each of the two end faces. Each of the external electrodes includes a base layer contacting the internal electrode layers, a main component of the base layer being Cu. The base layer includes Ni of 1 wt % or more and 10 wt % or less on a presumption that an amount of Cu is 100 wt %.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: October 8, 2024
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Tomoaki Nakamura, Mikio Tahara
  • Publication number: 20240331944
    Abstract: A ceramic electronic device includes a multilayer chip having a multilayer portion in which each of a plurality of dielectric layers and each of a plurality of internal electrode layers are alternately stacked. The multilayer chip has a side margin outside a capacity section. The multilayer chip has cover layers on an upper face and a lower face of a capacity section. Each of the side margin and the cover layers has, on a side of an outer surface, a high concentration portion of a subcomponent of at least one of Si, Mn, Cu, Fe, V, Ni, B, Mg, Ho, Dy, Er, Tm, Yb, Gd, Li, Co, Sm and Y. A concentration of the subcomponent of the high concentration portion is higher than that of a portion closer to the capacity section than the high concentration portion.
    Type: Application
    Filed: March 26, 2024
    Publication date: October 3, 2024
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Yuji TAKITA, Yusuke KOWASE, Maiko YAMANE, Yu SUGAWARA
  • Publication number: 20240333244
    Abstract: A filter includes a multilayer body in which a plurality of dielectric layers and a plurality of conductor layers are alternately stacked in a stack direction, an inductor including a first conductor pattern formed of at least one of the plurality of conductor layers, and a second conductor pattern provided in the multilayer body, the second conductor pattern being not connected to other conductors in the multilayer body, X?7.5×107/(fc×?{square root over (?r)}) being satisfied where a maximum width of the second conductor pattern is X (m), a frequency at a high-frequency end of a passband is fc (Hz), and a relative permittivity of the plurality of dielectric layers is ?r.
    Type: Application
    Filed: March 26, 2024
    Publication date: October 3, 2024
    Applicant: TAIYO YUDEN CO., LTD.
    Inventor: Hidenori KITAZUME
  • Publication number: 20240332733
    Abstract: An all solid battery includes a solid electrolyte layer, and electrode layers that are provided on both main faces of the solid electrolyte layer and include an electrode active material and a fibrous conductive auxiliary agent. In cross sections of the electrode layers, an average diameter of the conductive auxiliary agent is 2 nm or more and 150 nm or less, an area ratio occupied by the conductive auxiliary agent is 0.5% or more and 5.0% or less, and an area ratio occupied by the electrode active material is 28% or more and less than 80%. A thickness of the solid electrolyte layer is 5 ?m or more and 20 ?m or less.
    Type: Application
    Filed: March 14, 2024
    Publication date: October 3, 2024
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Chie KAWAMURA, Hajime HASEGAWA
  • Publication number: 20240331945
    Abstract: A multilayer ceramic electronic device includes an element body and external electrodes. At least one of the pair of external electrodes includes a first metal layer and a second metal layer. The first metal layer covers a part of internal electrodes and a first portion of cover dielectric layers and side margin sections which is located on a side of the internal electrodes, does not cover a second portion of the cover dielectric layers and the side margin section which is other than the first portion, contacts a part of the internal electrodes, and has a main component of nickel or copper, at a corresponding end face of the element body. The second metal layer covers the first metal layer, contacts at least a part of the second portion on a side of the first metal layer, and has a main component of tin.
    Type: Application
    Filed: March 26, 2024
    Publication date: October 3, 2024
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Takashi ASAI, Yoichi KATO, Tomoyasu EGUCHI
  • Publication number: 20240331942
    Abstract: A multilayer ceramic electronic device includes a ceramic element body. The active section includes a plurality of internal electrodes stacked in a second direction orthogonal to a first direction. The protection section includes a cover section stacked on the active section along the second direction and a side margin section covering the active section from a third direction orthogonal to the first direction and the second direction. The ridge portion includes a first ridgeline portion on a side of the cover section and a second ridgeline portion on a side of the side margin section, with the recess between the first ridgeline portion and the second ridgeline portion. In a cross section including the second direction and the third direction, a radius of curvature R1 of the first ridgeline portion is larger than a radius of curvature R2 of the second ridgeline portion.
    Type: Application
    Filed: March 15, 2024
    Publication date: October 3, 2024
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Takumu YANAI, Shoji KUSUMOTO
  • Patent number: 12107278
    Abstract: A solid oxide fuel cell includes an anode that includes a porous layer including an electron conductive ceramics and an oxygen ion conductive ceramics, the porous layer of the anode being impregnated with an anode catalyst, an electrolyte layer that is provided on the anode and includes a solid oxide having oxygen ion conductivity, and a cathode that is provided on the electrolyte layer and has a porous layer including an electron conductive ceramics and an oxygen ion conductive ceramics, the porous layer of the cathode being impregnated with a cathode catalyst.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: October 1, 2024
    Assignee: TAIYO YUDEN CO., LTD.
    Inventor: Shinichi Yamagishi
  • Patent number: 12107260
    Abstract: An all solid battery includes an oxide-based solid electrolyte layer, a positive electrode layer that is provided on a first main face of the oxide-based solid electrolyte layer and includes a positive electrode active material, and a negative electrode layer that is provided on a second main face of the oxide-based solid electrolyte layer and includes a negative electrode active material. At least one of the positive electrode active material of the positive electrode layer and the negative electrode active material of the negative electrode layer includes a first electrode active material and a second electrode active material of which average operation potentials (vs Li/Li+) are different from each other.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: October 1, 2024
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Daigo Ito, Taiki Suematsu
  • Patent number: 12106887
    Abstract: A method of manufacturing a coil component having terminal electrodes with high mounting strength, includes: embedding an air-core coil in complex magnetic material being a mixture of resin and metal magnetic grains, molding the magnetic material so that both ends of the coil are exposed on its surface, curing the resin in the molding, thereby obtaining a magnetic body in which the coil is embedded, polishing and etching a surface where the ends of the coil are exposed, sputtering metal material onto an etched surface of the magnetic body, thereby forming an underlying layer across a surface of the magnetic body and ends of the coil, and then forming a cover layer that covers an outer side of the underlying layer, thereby forming terminal electrodes constituted by the underlying layer and cover layer.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: October 1, 2024
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Daiki Mimura, Toshiyuki Yagasaki
  • Publication number: 20240322784
    Abstract: An acoustic wave device includes a piezoelectric body, a pair of comb-shaped electrodes provided on the piezoelectric body, the pair of comb-shaped electrodes including a plurality of electrode fingers, a reflector provided on the piezoelectric body so as to be arranged in line with the pair of comb-shaped electrodes in an arrangement direction of the electrode fingers, and an additional film provided on the piezoelectric body between the pair of comb-shaped electrodes and the reflector so that an overlap width with the pair of comb-shaped electrodes and an overlap width with the reflector are equal to or less than 1/8 of an average pitch of the electrode fingers of the pair of comb-shaped electrodes and a distance between the additional film and the pair of comb-shaped electrodes and a distance between the additional film and the reflector are equal to or less than 1/8 of the average pitch.
    Type: Application
    Filed: February 29, 2024
    Publication date: September 26, 2024
    Applicant: TAIYO YUDEN CO., LTD.
    Inventor: Mayu TSUKADA