公开(公告)号：US11898913B2

公开(公告)日：2024-02-13

申请号：US17889958

申请日：2022-08-17

Applicant: TDK CORPORATION

Inventor： Shinji Hara ,  Naoki Ohta ,  Kazuya Maekawa ,  Susumu Aoki ,  Maiko Shirokawa

IPC: G01J5/20 ,  G01J5/02

CPC classification number: G01J5/20 ,  G01J5/0205

Abstract: An electromagnetic wave sensor 1 has electromagnetic wave absorbers disposed side by side in first and second directions, temperature detection portions held by the respective electromagnetic wave absorbers and sets of two arm portions connected to each electromagnetic wave absorber at two connection portions. In a plan view, the arm portions have two first extending portions extending from the connection portions in directions of which components in the second direction are opposite to each other, and two second extending portions extending from the first extending portions in directions of which components in the first direction are opposite to each other. Four sides of a rectangle circumscribing each of the electromagnetic wave absorbers with a smallest area are inclined with respect to the first direction in directions in which each electromagnetic wave absorber is away from the second extending portions with the connection portions as fulcrums.

公开(公告)号：US11201013B2

公开(公告)日：2021-12-14

申请号：US16830884

申请日：2020-03-26

Applicant: TDK CORPORATION

Inventor： Yusuke Oba ,  Raitarou Masaoka ,  Shohei Fujii ,  Maiko Shirokawa

IPC: C04B35/495 ,  H01G4/12 ,  H01G4/10

Abstract: A dielectric film comprises a complex oxide represented by a general formula xAO-yBO-zC2O5 as a main component, wherein A is at least one selected from barium, calcium and strontium, B is at least one selected from magnesium and zinc, C is at least one selected from niobium and tantalum, x, y and z satisfy relations: x+y+z=1.000, 0.375≤x≤0.563, 0.250≤y≤0.500, and x/3≤z≤(x/3)+1/9, and a full width at half maximum of a diffraction peak of a (110) plane of the complex oxide is 0.40° or more in an X-ray diffraction chart of the dielectric film.

公开(公告)号：US10121592B2

公开(公告)日：2018-11-06

申请号：US15459609

申请日：2017-03-15

Applicant: TDK CORPORATION

Inventor： Maiko Shirokawa ,  Raitarou Masaoka ,  Hiroki Uchiyama ,  Shohei Fujii

IPC: B32B15/04 ,  H01G4/10 ,  H01P7/10 ,  H03H1/00 ,  C23C14/08 ,  C04B35/053 ,  H01G4/33 ,  H01G4/12 ,  C23C14/34 ,  H01B3/12

Abstract: A dielectric thin film containing MgO as a main component, wherein the dielectric thin film is composed of a columnar structure group containing at least one columnar structure A constructed by single crystal and at least one columnar structure B constructed by polycrystal, respectively, and in the cross section of the direction perpendicular to the dielectric thin film, when the area occupied by the columnar structure A is set as CA and the area occupied by the columnar structure B is set as CB, the relationship between CA and CB satisfies 0.4≤CB/CA≤1.1.

公开(公告)号：US09862646B2

公开(公告)日：2018-01-09

申请号：US15278725

申请日：2016-09-28

Applicant: TDK CORPORATION

Inventor： Shohei Fujii ,  Raitarou Masaoka ,  Hiroki Uchiyama ,  Maiko Shirokawa

IPC: C04B35/01 ,  C04B35/495 ,  H01G4/08 ,  H01G4/33 ,  C04B35/057 ,  H01G4/12 ,  H01L49/02 ,  C01G33/00 ,  C01G35/00 ,  C01F11/02

CPC classification number: C04B35/057 ,  C01F11/02 ,  C01G33/006 ,  C01G35/006 ,  C01P2006/40 ,  C04B35/01 ,  C04B35/495 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3251 ,  C04B2235/3255 ,  C04B2235/6562 ,  C04B2235/6567 ,  H01G4/1254 ,  H01G4/33 ,  H01L27/11582 ,  H01L28/00 ,  H01L28/55

Abstract: A dielectric composition containing a complex oxide represented by the formula of AαBβC2γOα+β+5γ as the main component, wherein A represents Ba, B represents at least one element selected from the group consisting of Ca and Sr, C represents at least one element selected from the group consisting of Ta and Nb, and α, β and γ meet the following conditions, i.e., α+β+γ=1.000, 0.000

公开(公告)号：US11257620B2

公开(公告)日：2022-02-22

申请号：US16829137

申请日：2020-03-25

Applicant: TDK CORPORATION

Inventor： Maiko Shirokawa ,  Raitarou Masaoka ,  Shohei Fujii ,  Yusuke Oba

IPC: C04B35/495 ,  H01G4/12 ,  H01G4/10

Abstract: A dielectric film comprises a complex oxide represented by a general formula xAO-yBO-zC2O5 as a main component, wherein A is at least one selected from barium, calcium and strontium, B is at least one selected from magnesium and zinc, C is at least one selected from niobium and tantalum, x, y and z satisfy relations: x+y+z=1.000, 0.375≤x≤0.563, 0.250≤y≤0.500, and x/3≤z≤(x/3)+1/9, and in an X-ray diffraction chart of the dielectric film, a diffraction peak intensity of a (211) plane of the complex oxide or a diffraction peak intensity of a (222) plane of the complex oxide is larger than a diffraction peak intensity of a (110) plane of the complex oxide.

公开(公告)号：US10035711B2

公开(公告)日：2018-07-31

申请号：US15459306

申请日：2017-03-15

Applicant: TDK CORPORATION

Inventor： Hiroki Uchiyama ,  Raitarou Masaoka ,  Shohei Fujii ,  Maiko Shirokawa

IPC: C04B35/03 ,  C01F11/02 ,  C01F5/02 ,  C04B35/04 ,  C04B35/057 ,  C04B35/622 ,  C23C14/08 ,  C23C14/18 ,  C23C14/34 ,  H01G4/10 ,  H01G4/33 ,  C04B35/486 ,  H01G4/08 ,  H01G4/12 ,  H01L21/02 ,  H01L49/02

CPC classification number: C01F11/02 ,  C01F5/02 ,  C01P2002/74 ,  C04B35/01 ,  C04B35/03 ,  C04B35/04 ,  C04B35/057 ,  C04B35/486 ,  C04B35/62218 ,  C04B2235/3205 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3236 ,  C04B2235/3239 ,  C04B2235/3244 ,  C04B2235/3248 ,  C04B2235/3255 ,  C04B2235/3284 ,  C04B2235/762 ,  C04B2235/787 ,  C23C14/082 ,  C23C14/185 ,  C23C14/3414 ,  H01G4/085 ,  H01G4/10 ,  H01G4/1227 ,  H01G4/33 ,  H01L21/02175 ,  H01L21/02194 ,  H01L21/02266 ,  H01L28/55

Abstract: A dielectric film containing an alkaline earth metal oxide having a NaCl type crystal structure as a main component, wherein the dielectric film has a (111)-oriented columnar structure in a direction perpendicular to the surface of the dielectric film, and in a Cu—Kα X-ray diffraction chart of the dielectric film, a half width of the diffraction peak of (111) is in a range of from 0.3° to 2.0°.

公开(公告)号：US09748018B2

公开(公告)日：2017-08-29

申请号：US15192293

申请日：2016-06-24

Applicant: TDK CORPORATION

Inventor： Raitarou Masaoka ,  Hiroki Uchiyama ,  Shohei Fujii ,  Maiko Shirokawa

IPC: C04B35/495 ,  H01B3/10 ,  H01B3/12 ,  C01G35/00 ,  H01G4/33 ,  H01G4/12 ,  H01G4/10

CPC classification number: H01B3/10 ,  C01G35/006 ,  C01P2006/40 ,  C04B35/495 ,  C04B35/62645 ,  C04B35/62685 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/6565 ,  C04B2235/6567 ,  C23C14/08 ,  H01B3/12 ,  H01G4/10 ,  H01G4/1254 ,  H01G4/33

Abstract: A dielectric composition containing a complex oxide represented by the formula of xAO-yBO-zC2O5 as the main component, wherein A represents at least one element selected from the group including Ba, Ca and Sr, B represents Mg, and C represents at least one element selected from the group including Nb and Ta, and x, y and z meet the following conditions, x+y+z=1.000, 0.198≦x≦0.375, 0.389≦y≦0.625, and x/3≦z≦x/3+1/9.

公开(公告)号：US09745225B2

公开(公告)日：2017-08-29

申请号：US15192322

申请日：2016-06-24

Applicant: TDK CORPORATION

Inventor： Raitarou Masaoka ,  Hiroki Uchiyama ,  Shohei Fujii ,  Maiko Shirokawa

IPC: C04B35/495 ,  H01B3/10 ,  H01B3/12 ,  H01G4/33 ,  H01G4/12 ,  H01G4/10

CPC classification number: C04B35/495 ,  C01F5/00 ,  C01F11/00 ,  C01G15/006 ,  C01G33/006 ,  C01G35/006 ,  C01P2002/50 ,  C01P2004/03 ,  C01P2006/40 ,  C04B35/62685 ,  C04B35/638 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3255 ,  C04B2235/6562 ,  C04B2235/6567 ,  H01B3/10 ,  H01B3/12 ,  H01G4/10 ,  H01G4/1254 ,  H01G4/33

Abstract: A dielectric composition containing a complex oxide represented by the formula of xAO-yBO-zC2O5 as the main component, wherein A represents at least one element selected from the group including Ba, Ca and Sr, B represents Mg, and C represents at least one element selected from the group including Nb and Ta, and x, y and z meet the following conditions, x+y+z=1.000, 0.000

公开(公告)号：US11769613B2

公开(公告)日：2023-09-26

申请号：US17539480

申请日：2021-12-01

Applicant: TDK CORPORATION

Inventor： Susumu Aoki ,  Shinji Hara ,  Naoki Ohta ,  Maiko Shirokawa ,  Eiji Komura

IPC: H01C7/00 ,  H01C1/14 ,  H01C7/04

CPC classification number: H01C7/008 ,  H01C1/1413 ,  H01C7/041 ,  H01C7/043

Abstract: A thermistor element includes: a thermistor film; a first electrode provided in contact with one surface of the thermistor film; and a pair of second electrodes provided in contact with an other surface of the thermistor film, wherein the thermistor film is provided to cover a periphery of the first electrode.

公开(公告)号：US11676744B2

公开(公告)日：2023-06-13

申请号：US17669755

申请日：2022-02-11

Applicant: TDK CORPORATION

Inventor： Susumu Aoki ,  Shinji Hara ,  Naoki Ohta ,  Maiko Shirokawa

IPC: H01C7/00 ,  G01J5/20 ,  H01C1/14 ,  G01J5/00

CPC classification number: H01C7/008 ,  G01J5/20 ,  H01C1/14 ,  G01J2005/0077 ,  G01J2005/202

Abstract: A thermistor element includes: a thermistor film; a pair of first electrodes in contact with one surface of the thermistor film; an insulation film opposite to a contact side of the pair of first electrodes, the contact side on which the pair of first electrodes is in contact with the thermistor film; and at least one opening portion located in a region which overlaps each of the first electrodes when viewed in a plan view and passing through the insulation film. Each first electrode has a first portion located where each of the first electrodes and the opening portion overlap when viewed in a plan view and a second portion outside of where each of the first electrodes and the opening portion overlap when viewed in a plan view and is over the first portion and second portion to be in contact with the one surface of the thermistor film.