公开(公告)号：US11901106B2

公开(公告)日：2024-02-13

申请号：US17751097

申请日：2022-05-23

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Hidenori Aoki ,  Tomoo Kashiwa

IPC: H01F17/04 ,  H01F27/02 ,  B65H75/18 ,  H01F17/00 ,  H01F5/02 ,  H01F27/29 ,  H01F41/086

CPC classification number: H01F17/045 ,  B65H75/18 ,  H01F5/02 ,  H01F17/0033 ,  H01F27/027 ,  H01F27/292 ,  H01F41/086

Abstract: A coil element according to one embodiment of the present invention has a rectangular parallelepiped shape and has a principal surface including long sides and short sides. The coil element includes a drum core, a winding wound around the drum core, a first external electrode, a second external, and a covering portion covering at least a part of the winding core. The drum core in the embodiment includes a first flange, a second flange, and a winding core connecting between the first flange and the second flange. The winding core extends along the short sides of the principal surface. In one embodiment, the coil element has a height less than 0.85 mm.

公开(公告)号：US11901103B2

公开(公告)日：2024-02-13

申请号：US16798904

申请日：2020-02-24

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Yoko Orimo ,  Shinsuke Takeoka

IPC: H01F1/147 ,  H01F1/33 ,  H01F41/02

CPC classification number: H01F1/14791 ,  H01F1/33 ,  H01F41/0246

Abstract: A magnetic body is constituted by grains of a soft magnetic alloy bonded together via an oxide layer, wherein: the soft magnetic alloy is an alloy containing Si by 1 to 5.5 percent by mass, and Cr or Al by 0.2 to 4 percent by mass in total, as constituent elements, with Fe and unavoidable impurities accounting for the remainder; and the oxide layer contains Si, as well as at least one of Cr and Al, where, among Fe, Si, Cr, and Al, Si is contained in the largest quantity based on mass. The magnetic body can have high magnetic permeability.

公开(公告)号：US20240047110A1

公开(公告)日：2024-02-08

申请号：US18487576

申请日：2023-10-16

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Daiki MIMURA ,  Tetsuyuki SUZUKI

IPC: H01F5/00 ,  H01F27/255 ,  H01F27/28 ,  H01F17/00

CPC classification number: H01F5/003 ,  H01F27/255 ,  H01F27/2804 ,  H01F17/0013

Abstract: A coil component according to one aspect of the present invention includes: a magnetic base body containing a plurality of metal magnetic particles and a binder binding the plurality of metal magnetic particles together; and a coil conductor provided in the magnetic base body and including a winding portion wound around a coil axis, wherein as viewed from a direction of the coil axis, the magnetic base body includes a core region enclosed by the winding portion, and a ratio of an area of the core region to a sum of an area of the winding portion and the area of the core region is 32% or larger.

公开(公告)号：US11889767B2

公开(公告)日：2024-01-30

申请号：US16814804

申请日：2020-03-10

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Gouki Watanabe ,  Ryo Ito ,  Takayuki Goto ,  Hiroyuki Shimizu ,  Sumiaki Kishimoto

IPC: H01L41/187 ,  H10N30/853 ,  C04B35/495 ,  C04B37/00 ,  H10N30/20 ,  H10N30/50 ,  H10N30/053 ,  H10N30/87

CPC classification number: H10N30/8542 ,  C04B35/495 ,  C04B37/001 ,  H10N30/053 ,  H10N30/20 ,  H10N30/50 ,  H10N30/871 ,  H10N30/877 ,  C04B2235/3255 ,  C04B2235/768 ,  C04B2235/786 ,  C04B2237/345

Abstract: A multilayer piezoelectric ceramic is such that: its piezoelectric ceramic layers do not contain lead as a constituent element, and have a perovskite compound expressed by the composition formula LixNayK1-x-yNbO3 (where 0.02

公开(公告)号：US11848157B2

公开(公告)日：2023-12-19

申请号：US17694148

申请日：2022-03-14

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Yoichi Kato

IPC: H01G4/12 ,  H01G4/30 ,  C04B35/64 ,  H01G4/012 ,  H01G4/008

CPC classification number: H01G4/1218 ,  C04B35/64 ,  H01G4/008 ,  H01G4/012 ,  H01G4/30

Abstract: A ceramic electronic device includes a multilayer structure in which each of a plurality of internal electrode layers and each of three or more of dielectric layers of which a main component is ceramic are alternately stacked. The three or more of dielectric layers include Sn. A dielectric layer having a smaller Sn concentration is closer to an outermost end in a stacking direction than a dielectric layer having a larger Sn concentration and being located on a center side of the stacking direction, in a relationship of at least two of the three or more of dielectric layers.

公开(公告)号：US11848132B2

公开(公告)日：2023-12-19

申请号：US17543520

申请日：2021-12-06

Applicant: Taiyo Yuden Co., Ltd.

Inventor： Kinshiro Takadate ,  Atsushi Tanada ,  Kengo Tsuchiya

IPC: H01F1/147 ,  H05K1/18 ,  H01F41/04 ,  H01F41/02

CPC classification number: H01F1/147 ,  H01F41/0246 ,  H01F41/04 ,  H05K1/181 ,  H05K2201/1003

Abstract: One aspect of the present invention is a coil component comprising: a magnetic substrate formed with magnetic metal particles containing Fe, Si and Cr, and a bonding layer containing oxygen and nitrogen that bonds the magnetic metal particles to each other; and a conductor arranged inside or on the surface of the magnetic substrate.

公开(公告)号：US20230395844A1

公开(公告)日：2023-12-07

申请号：US18250335

申请日：2021-10-22

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Masashi SEKIGUCHI

IPC: H01M10/0562 ,  H01M10/058

CPC classification number: H01M10/0562 ,  H01M10/058 ,  H01M2300/0071

Abstract: An all solid battery is characterized by including a solid electrolyte layer of which a main component is an oxide-based solid electrolyte having a NASICON type crystal structure which has a compositional formula of Li1+x+2y+aAyM′xM″2-x-yP3O12+c, in which “A” is a divalent metal element, “M′” is a trivalent metal element, “M″” is a quadrivalent transition metal, and satisfies 0

公开(公告)号：US11837409B2

公开(公告)日：2023-12-05

申请号：US17590059

申请日：2022-02-01

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Koichiro Morita

IPC: H01G4/12 ,  H01G4/30 ,  H01G4/012 ,  C04B35/468 ,  C04B35/64 ,  H01G4/008 ,  C04B35/06

CPC classification number: H01G4/1227 ,  C04B35/06 ,  C04B35/4682 ,  H01G4/008 ,  H01G4/012 ,  H01G4/30 ,  C04B2235/658

Abstract: A ceramic electronic device includes a plurality of dielectric layers of which a main component is a ceramic having a perovskite structure, and a plurality of internal electrode layers, each of which is stacked through each of the plurality of dielectric layers and includes a co-material which is inactive against the main component of the plurality of dielectric layers.

公开(公告)号：US11834379B2

公开(公告)日：2023-12-05

申请号：US17578249

申请日：2022-01-18

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Katsuya Taniguchi ,  Tsuyoshi Sogabe

IPC: C04B35/468 ,  H01G4/12 ,  H01G4/012 ,  H01G4/30

CPC classification number: C04B35/4682 ,  H01G4/012 ,  H01G4/1227 ,  H01G4/30 ,  C04B2235/3256 ,  C04B2235/3262

Abstract: Ceramic raw material powder includes: a main phase having a perovskite structure, wherein elements acting as a donor and an acceptor are solid-solved in B sites of the perovskite structure, wherein a first relationship of value A value B is satisfied in a circumference region of each grain of the ceramic raw material powder, and value A in the second relationship gradually decreases from the circumference region to the center, wherein value A is a value of (concentration of the element acting as a donor)×(valence of the element acting as a donor−4), and value B is a value of (concentration of the element acting as an acceptor)×(4−valence of the element acting as an acceptor).

公开(公告)号：US20230387882A1

公开(公告)日：2023-11-30

申请号：US18322254

申请日：2023-05-23

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Mayu TSUKADA ,  Shodai HARAI

IPC: H03H9/145 ,  H03H9/64

CPC classification number: H03H9/145 ,  H03H9/72 ,  H03H9/6413 ,  H03H9/6483

Abstract: An acoustic wave resonator includes comb-shaped electrodes each including electrode fingers and dummy electrode fingers, first tips of the electrode fingers of one of the comb-shaped electrodes and second tips of the dummy electrode fingers of the other facing each other, each dummy electrode finger including a first portion located closer to the corresponding second tip and a second portion located farther from the corresponding second tip than the first portion, the first portion being narrower in a short direction than the second portion, and an insulating film that is provided from an edge region of an overlap region to a first region, where the first portions of the dummy electrode fingers are located, of a dummy region and is provided in neither a central region of the overlap region nor a second region, where the second portions of the dummy electrode fingers are located, of the dummy region.