公开(公告)号：US09790098B2

公开(公告)日：2017-10-17

申请号：US15090783

申请日：2016-04-05

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Hiroshi Watanabe ,  Shinji Ban ,  Tomoki Yamaguchi ,  Yasuyuki Okimura ,  Tomohiro Nishi

IPC: H01B1/08 ,  H01C7/00 ,  C01G37/00 ,  G01K7/22 ,  C04B35/12 ,  G05D23/24

CPC classification number: C01G37/006 ,  C01P2006/40 ,  C04B35/12 ,  C04B2235/3205 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3241 ,  C04B2235/3262 ,  C04B2235/5436 ,  C04B2235/602 ,  C04B2235/604 ,  C04B2235/768 ,  G01K7/22 ,  G05D23/24 ,  H01B1/08 ,  H01C7/008

Abstract: A sintered electroconductive oxide having a perovskite oxide type crystal structure represented by a compositional formula: M1aM2bMncAldCreOf wherein M1 represents at least one element selected from group 3 elements; and M2 represents at least one element selected from among Mg, Ca, Sr and Ba, wherein element M1 predominantly includes at least one element selected from Nd, Pr and Sm, and a, b, c, d, e and f satisfy the following relationships: 0.6005≦a

公开(公告)号：US12114402B2

公开(公告)日：2024-10-08

申请号：US16975607

申请日：2019-11-13

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Ryunosuke Sakamaki ,  Katsuya Takaoka ,  Hiroshi Watanabe

IPC: H05B3/06 ,  C04B35/581 ,  H01L21/683 ,  H05B3/03 ,  H05B3/12 ,  H05B3/20 ,  H05B3/28 ,  H05B3/74

CPC classification number: H05B3/12 ,  C04B35/581 ,  H05B3/03 ,  H05B3/06 ,  H05B3/20 ,  H05B3/283 ,  H05B3/74 ,  H01L21/683 ,  H05B2203/016

Abstract: A holding device including a ceramic member formed of a sintered ceramic material containing aluminum nitride as a main component, a heating resistor element formed of a metal and disposed in the ceramic member, and an electrically conductive electricity supply member in contact with the heating resistor element. The holding device holds an object on the surface of the ceramic member. In the holding device, at least a portion of the surface of the heating resistor element, excluding its contact surface for contact with the electricity supply member, is covered with a coat layer formed of a nitride containing at least one of Al, Ti, Zr, V, Ta, and Nb. Also disclosed is a method of manufacturing the holding device.

公开(公告)号：US12110577B2

公开(公告)日：2024-10-08

申请号：US17421201

申请日：2020-03-11

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Hiroshi Watanabe ,  Satoshi Mori ,  Manami Fujii ,  Katsuya Takaoka ,  Hiroki Takeuchi ,  Hisashi Kozuka

IPC: B22F1/00 ,  B22F1/05 ,  B22F1/052 ,  B22F1/105 ,  B22F1/16 ,  C22C38/02 ,  H01F1/20

CPC classification number: C22C38/02 ,  B22F1/00 ,  B22F1/05 ,  B22F1/052 ,  B22F1/105 ,  B22F1/16 ,  H01F1/20 ,  B22F2301/35 ,  B22F2302/253 ,  B22F2304/10 ,  B22F2998/10 ,  B22F1/142 ,  B22F1/16 ,  B22F3/02 ,  B22F2003/248

Abstract: The iron loss of a dust core is reduced. A dust core (1) includes soft magnetic metal particles (3) having an average particle size of 5 μm or more and 30 μm or less, and a particle boundary phase (6). The particle boundary phase (6) includes a polycrystalline compound containing Al (aluminum). When a sectional structure of the dust core (1) is observed, an area percentage of α-Al2O3 in the particle boundary phase (6) is 75% or less. An average thickness Ta of the particle boundary phase (6) is 10 nm or more and 300 nm or less. According to the present invention, the iron loss is reduced.

公开(公告)号：US12273965B2

公开(公告)日：2025-04-08

申请号：US16975527

申请日：2019-11-13

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Ryunosuke Sakamaki ,  Katsuya Takaoka ,  Hiroshi Watanabe

IPC: H05B3/12 ,  C04B35/581 ,  H01L21/67 ,  H01L21/683 ,  H01L21/687 ,  H05B3/03 ,  H05B3/06 ,  H05B3/20 ,  H05B3/28 ,  H05B3/74

Abstract: A holding device including a ceramic member formed of a sintered ceramic material containing aluminum nitride as a main component, a heating resistor element formed of a metal and disposed in the ceramic member, an electrically conductive electricity supply connection member in contact with the heating resistor element, and an electrically conductive electricity supply terminal electrically connected to the electricity supply connection member. The holding device holds an object on the surface of the ceramic member. In the holding device, at least a portion of the surface of the electricity supply connection member, excluding its contact surface for contact with the heating resistor element and its connection surface for connection with the electricity supply terminal, is covered with a coat layer formed of a nitride containing at least one of Al, Ti, Zr, V, Ta, and Nb. Also disclosed is a method of manufacturing the holding device.

公开(公告)号：US10186355B2

公开(公告)日：2019-01-22

申请号：US15485355

申请日：2017-04-12

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Tomoki Yamaguchi ,  Shinji Ban ,  Hiroshi Watanabe ,  Yasuyuki Okimura ,  Hiroaki Nakanishi ,  Seiji Oya ,  Seiya Matsuda

IPC: H01C1/14 ,  H01C7/00 ,  H01C17/22 ,  G01K7/22 ,  H01C17/24

Abstract: In a manufacturing method for a thermistor element (3) including: a thermistor portion (49) which is a sintered body formed from a thermistor material; and a pair of electrode wires (25) which are embedded in the thermistor portion (49) and at least one end portion of each of the electrode wires projects at an outer side of the thermistor portion (49), the resistance value of the thermistor element (3) is adjusted by performing a removal processing of removing a part of the thermistor portion (49).

公开(公告)号：US09312054B2

公开(公告)日：2016-04-12

申请号：US14199055

申请日：2014-03-06

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Hiroshi Watanabe ,  Yasuyuki Okimura

IPC: H01C7/10 ,  H01C1/02 ,  H01C7/00 ,  H01C1/032 ,  H01C17/02 ,  G01K7/22 ,  H01C7/04

CPC classification number: H01C1/02 ,  G01K7/22 ,  G01K2205/04 ,  H01C1/032 ,  H01C7/008 ,  H01C7/04 ,  H01C17/02 ,  Y10T29/49085

Abstract: A thermistor element includes a thermistor main body having a rectangular parallelepiped shape, and a first covering layer having reduction resistance and covering the periphery of the thermistor main body. At least a portion (exposed outer surface) of the outer surface of the first covering layer is exposed to the outside. When the shortest distance in a straight line in the first covering layer extending from a starting point on the thermistor main body to the exposed outer surface is defined as an exposed layer thickness at the starting point, the first covering layer is formed such that an exposed layer thickness measured by using any vertex of the rectangular parallelepiped thermistor main body as a starting point is equal to or greater than the smallest one of exposed layer thicknesses measured by using points on three sides and three flat surfaces which form the vertex.

Abstract translation: 热敏电阻元件包括具有长方体形状的热敏电阻主体和具有降低电阻并覆盖热敏电阻主体周围的第一覆盖层。 第一覆盖层的外表面的至少一部分（暴露的外表面）暴露于外部。 当从热敏电阻本体的起点延伸到暴露的外表面的第一覆盖层中的直线中的最短距离被定义为起始点处的暴露层厚度时，第一覆盖层形成为暴露 通过使用长方体状热敏电阻体的任意顶点测定的层厚度为起始点以上，通过使用形成顶点的三面的三点和三个平面来测定的最小曝光层厚度等于或大。