公开(公告)号：US20200286684A1

公开(公告)日：2020-09-10

申请号：US16882342

申请日：2020-05-22

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Chie KAWAMURA ,  Kazumichi HIROI ,  Osamu HATTORI

IPC: H01G4/30 ,  H01G4/12 ,  C04B35/468 ,  B32B18/00 ,  C01G23/00 ,  C04B35/626

Abstract: A manufacturing method of ceramic powder includes: synthesizing barium titanate powder from barium carbonate, titanium dioxide, manganese carbonate, and one of ammonium molybdate and tungsten oxide, wherein: a solid solution amount of the donor element is 0.05 mol or more and 0.3 mol or less; a solid solution amount of the accepter element with respect to the barium titanate is 0.02 mol or more and 0.2 mol or less on a presumption that the amount of the barium titanate is 100 mol and the acceptor element is converted into an oxide; and relationships y≥−0.0003x+1.0106, y≤−0.0002x+1.0114, 4≤x≤25 and y≤1.0099 are satisfied when a specific surface area of the ceramic powder is “x” and an axial ratio c/a of the ceramic powder is “y”.

公开(公告)号：US20200083563A1

公开(公告)日：2020-03-12

申请号：US16560317

申请日：2019-09-04

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Chie KAWAMURA ,  Sachie TOMIZAWA ,  Daigo ITO ,  Takato SATOH

IPC: H01M10/0562 ,  C04B35/447 ,  H01M4/13

Abstract: An all solid battery includes: a solid electrolyte layer including phosphoric acid salt-based solid electrolyte; a first electrode that is formed on a first main face of the solid electrolyte layer; and a second electrode that is formed on a second main face of the solid electrolyte layer, wherein a D50% grain diameter of crystal grains of the phosphoric acid salt-based solid electrolyte is 0.5 μm or less, wherein a D90% grain diameter of the crystal grains is 3 μm or less.

公开(公告)号：US20190305369A1

公开(公告)日：2019-10-03

申请号：US16365375

申请日：2019-03-26

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Daigo ITO ,  Takato SATOH ,  Sachie TOMIZAWA ,  Chie KAWAMURA

IPC: H01M10/0562 ,  H01M10/058 ,  H01M4/66

Abstract: An all solid battery includes: a solid electrolyte layer; a first electrode layer that is formed on a first main face of the solid electrolyte layer; a first electric collector layer that is formed on a face of the first electrode layer, the face being opposite to the first main face; a second electrode layer that is formed on a second main face of the solid electrolyte layer; and a second electric collector layer that is formed on a face of the second electrolyte layer, the face being opposite to the second main face, wherein at least one of the first electric collector layer and the second electric collector layer includes Pd and board-shaped graphite carbon, wherein a volume ratio of Pd and the board-shaped graphite carbon in the at least one of the first electric collector layer and the second electric collector layer is 20:80 to 80:20.

公开(公告)号：US20190051460A1

公开(公告)日：2019-02-14

申请号：US16056201

申请日：2018-08-06

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Chie KAWAMURA

IPC: H01G4/30 ,  H01G4/008 ,  H01G4/12

Abstract: A multilayer ceramic capacitor includes: a multilayer structure in which each of dielectric layers and each of internal electrode layers are alternately stacked, a main component of the dielectric layers being ceramic, wherein: a second-phase has an average diameter of 150 nm or less and is in at least one of interfaces between the dielectric layers and the internal electrode layers; and at least one of the internal electrode layers includes a grain of which a main component is ceramic.

公开(公告)号：US20170152187A1

公开(公告)日：2017-06-01

申请号：US15364175

申请日：2016-11-29

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Kunihiko NAGAOKA ,  Kazumichi HIROI ,  Minoru RYU ,  Chie KAWAMURA

IPC: C04B35/468 ,  H01G4/12 ,  H01G4/005 ,  H01G4/30

CPC classification number: C04B35/4682 ,  C01G23/006 ,  C01P2002/50 ,  C01P2002/52 ,  C01P2002/54 ,  C01P2002/74 ,  C01P2002/85 ,  C01P2004/62 ,  C01P2006/12 ,  C04B35/62675 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3232 ,  C04B2235/3236 ,  C04B2235/3239 ,  C04B2235/3251 ,  C04B2235/3256 ,  C04B2235/3258 ,  C04B2235/3262 ,  C04B2235/3418 ,  C04B2235/5409 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/785 ,  H01G4/005 ,  H01G4/1227 ,  H01G4/30

Abstract: Dielectric layers are prepared using a dielectric material that contains a ceramic powder having Ba, Ti, and additive element X which is solid-solubilized and is at least one element selected from the group consisting of Mo, Ta, Nb, and W, wherein the standard deviation of the ratio of the peak intensity of the additive element X (XKα) measured by STEM-EDX, and the sum of the peak intensity of the Ti and peak intensity of the Ba (BaLα+TiKα) measured by STEM-EDX, is less than 10.5% of the average ratio as measured at a total of five points including the three points that divide the maximum diameter of one grain of the ceramic powder into four equal parts, and two excluding the center point of the three points that divide the diameter crossing at right angles with the maximum diameter at its center point, into four equal parts.

公开(公告)号：US20170032894A1

公开(公告)日：2017-02-02

申请号：US15220064

申请日：2016-07-26

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Chie KAWAMURA ,  Yoichiro OGATA ,  Tetsuo SHIMURA ,  Minoru RYU ,  Yoshiki IWAZAKI

IPC: H01G4/12 ,  H01G4/248 ,  H01G4/30

CPC classification number: H01G4/1227 ,  H01G4/30

Abstract: A multilayer ceramic capacitor includes a laminate constituted by internal electrode layers of different polarities alternately layered via dielectric layers, wherein the multilayer ceramic capacitor is such that the dielectric layers contain ceramic grains whose primary component is BaTiO3, the ceramic grains contain Mo, Mn, rare earth R, and at least one of V and W, and the average valence number of Mo in the ceramic grains is 4.50 to 5.50. The multilayer ceramic capacitor can offer excellent service life characteristics and sufficiently suppress leak current even when the thickness of the dielectric layer is 0.8 μm or less.

Abstract translation: 多层陶瓷电容器包括由电介质层交替层叠的不同极性的内部电极层构成的层叠体，其中，所述多层陶瓷电容器使得所述电介质层含有主要成分为BaTiO 3的陶瓷晶粒，所述陶瓷粒子含有Mo，Mn，稀有金属 土R，以及V和W中的至少一个，陶瓷晶粒中Mo的平均价数为4.50〜5.50。 即使当电介质层的厚度为0.8μm以下时，多层陶瓷电容器也能够提供优异的使用寿命特性，并充分抑制漏电流。

公开(公告)号：US20240283042A1

公开(公告)日：2024-08-22

申请号：US18689283

申请日：2022-08-12

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Ryoichi WATABE ,  Chie KAWAMURA

IPC: H01M10/48 ,  H01M10/0585 ,  H01M10/44 ,  H02J7/00

CPC classification number: H01M10/48 ,  H01M10/0585 ,  H01M10/44 ,  H01M2300/0065 ,  H02J7/0047

Abstract: An all solid battery includes a solid electrolyte layer, a first electrode layer that is provided on a first main face of the solid electrolyte layer and includes an electrode active material, and a second electrode layer that is provided on a second main face of the solid electrode layer and includes an electrode active material. when the all solid battery is heated with an increase rate of 20° C./min, CO2 of 30 mg/cm3 or more and 53 mg/cm3 or less is externally generated from the all solid battery from 550° C. to 700° C. and CO2 of 90 mg/cm3 or more and 155 mg/cm3 or less is externally generated from the all solid battery from 550° C. to 750° C., per a unit volume (cm3) of the all solid battery.

公开(公告)号：US20230115530A1

公开(公告)日：2023-04-13

申请号：US17909667

申请日：2020-11-25

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Xinyu LI ,  Chie KAWAMURA

IPC: H01M8/1213 ,  H01M4/86 ,  H01M4/92 ,  H01M8/0258

Abstract: The solid oxide fuel cell includes a support of which a main component is a metal, an anode layer that is supported by the support, an electrolyte layer of solid oxide that is provided on the anode layer and has oxygen ion conductivity, a cathode layer that is provided on the electrolyte layer; and a porous layer of a metal that covers the cathode layer and a part of the electrolyte layer around the cathode.

公开(公告)号：US20220037088A1

公开(公告)日：2022-02-03

申请号：US17501817

申请日：2021-10-14

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Chie KAWAMURA ,  Kazumichi HIROI ,  Osamu HATTORI

IPC: H01G4/30 ,  H01G4/12 ,  C04B35/468 ,  B32B18/00 ,  C01G23/00 ,  C04B35/626

Abstract: A manufacturing method of ceramic powder includes mixing a barium carbonate having a specific surface are of 15 m2/g or more, a titanium dioxide having a specific surface area of 20 m2/g or more, a first compound of a donor element having a larger valence than Ti, and a second compound of an acceptor element having a smaller valence than Ti and having a larger ion radium than Ti and the donor element, and synthesizing barium titanate powder by calcining the barium carbonate, the titanium dioxide, the first compound and the second compound until a specific surface area of the barium titanate powder becomes 4 m2/g or more and 25 m2/g or less.

公开(公告)号：US20210066725A1

公开(公告)日：2021-03-04

申请号：US16999034

申请日：2020-08-20

Applicant: TAIYO YUDEN CO., LTD.

Inventor： Xinyu LI ,  Chie KAWAMURA

IPC: H01M4/86 ,  H01M8/1246 ,  H01M4/88

Abstract: A solid oxide fuel cell includes: a support layer mainly composed of a metal; an anode supported by the support; and a mixed layer interposed between the support and the anode, wherein the anode includes an electrode bone structure composed of a ceramic material containing a first oxide having electron conductivity and a second oxide having oxygen ion conductivity, and the mixed layer has a structure in which a metallic material and a ceramic material are mixed.