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公开(公告)号：US10153622B1
公开(公告)日：2018-12-11
申请号：US16001451
申请日：2018-06-06
摘要： A spark plug has an insulator, a rod-shaped electrode member disposed in an axial hole of the insulator, and a cylindrical magnetic member disposed on an outer circumference of the electrode member within the axial hole. The insulator includes a large inner diameter region, a middle inner diameter region located frontward of the large inner diameter region and having an inner diameter smaller than that of the large inner diameter region, and a small inner diameter region located frontward of the middle inner diameter region and having an inner diameter smaller than that of the middle inner diameter region. The electrode member is retained on a step portion of the insulator between the middle inner diameter region and the small inner diameter region. The magnetic member is positioned in the axial hole at a location within the large inner diameter region.
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公开(公告)号：US09590395B2
公开(公告)日：2017-03-07
申请号：US15108075
申请日：2014-12-25
发明人： Katsuya Takaoka , Kazuhiro Kurosawa , Kuniharu Tanaka , Toshitaka Honda , Hirokazu Kurono , Haruki Yoshida , Hironori Uegaki
IPC分类号： C04B35/195 , H01T13/05 , H01T13/41 , F02P11/00
摘要： A connection portion connecting a center electrode and a terminal metal fixture together in a through hole of the insulator includes a resistor and a magnetic substance structure including a magnetic substance and a conductor. The connection portion further includes a first conductive sealing portion, a second conductive sealing portion and a third conductive sealing portion. The first conductive sealing portion is disposed on a leading end side of a first member and is in contact therewith. The second conductive sealing portion is disposed between the first member and a second member and is in contact with the first member and the second member. The third conductive sealing portion is disposed on a rear end side of the second member and is in contact therewith.
摘要翻译： 在绝缘体的通孔中连接中心电极和端子金属固定器的连接部分包括电阻器和包括磁性物质和导体的磁性物质结构。 连接部分还包括第一导电密封部分，第二导电密封部分和第三导电密封部分。 第一导电密封部分设置在第一构件的前端侧并与其接触。 第二导电密封部分设置在第一构件和第二构件之间并与第一构件和第二构件接触。 第三导电密封部分设置在第二构件的后端侧并与其接触。
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公开(公告)号：US09385511B2
公开(公告)日：2016-07-05
申请号：US14420819
申请日：2013-08-23
发明人： Hiroki Takeuchi , Yutaka Yokoyama , Kuniharu Tanaka , Takeshi Mitsuoka , Toshitaka Honda , Hirokazu Kurono , Katsuya Takaoka , Hironori Uegaki
CPC分类号： H01T13/38 , C04B35/10 , C04B35/111 , C04B2235/3201 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3222 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3232 , C04B2235/3418 , C04B2235/3481 , C04B2235/80 , C04B2235/85 , G01R31/12 , G01R31/14 , H01T13/60
摘要： A spark plug including an insulator containing an Al component, in terms of oxides, 89 mass % or more and a Ti component, in terms of oxides, more than 0 mass % and 0.2 mass % or less, characterized in that the insulator is formed of an alumina-based sintered material which contains, in a grain boundary phase present between alumina crystal grains, a first crystal phase containing at least one species selected from among an La component, an Nd component, a Pr component, a Y component, an Er component, a Yb component, and an Lu component, and a second crystal phase containing at least one species of Group 2 element components, an Al component and an Si component.
摘要翻译： 一种火花塞，其包括以氧化物计，89质量％以上的Al成分和Ti成分以氧化物计，大于等于0质量％和0.2质量％以下的绝缘体，其特征在于，形成所述绝缘体 的氧化铝系烧结体，其在存在于氧化铝晶粒之间的晶界相中含有含有选自La成分，Nd成分，Pr成分，Y成分， 铒组分，Yb组分和Lu组分，以及含有至少一种2族元素组分，Al组分和Si组分的第二晶相。
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公开(公告)号：US10277012B2
公开(公告)日：2019-04-30
申请号：US16106103
申请日：2018-08-21
发明人： Kazuhiro Kurosawa , Katsuya Takaoka , Kota Yokoyama , Kuniharu Tanaka , Hirokazu Kurono , Hironori Uegaki
摘要： A spark plug having a connection portion disposed between a metal terminal and a center electrode. The connection portion includes: a magnetic substance formed from a Fe-containing oxide; a conductor which is a wire helically disposed on an outer periphery of the magnetic substance and electrically connected to the metal terminal and the center electrode; and an intermediate member which is in contact with the magnetic substance, the conductor, and an inner peripheral surface of the insulator, is disposed between the magnetic substance and the conductor, and the inner peripheral surface of the insulator, and has lower electrical conductivity than the conductor. The conductor is made of one or more of an oxide conductor, carbon, and a carbon compound.
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公开(公告)号：US10270228B2
公开(公告)日：2019-04-23
申请号：US16106187
申请日：2018-08-21
发明人： Kazuhiro Kurosawa , Katsuya Takaoka , Kota Yokoyama , Kuniharu Tanaka , Hirokazu Kurono , Hironori Uegaki
摘要： A spark plug having a connection portion disposed in the axial hole and between a metal terminal and a center electrode. The connection portion includes: a magnetic substance formed from a Fe-containing oxide; a conductor helically disposed on an outer periphery of the magnetic substance and electrically connected to the metal terminal and the center electrode; and an intermediate member disposed between the magnetic substance and the conductor, and an inner peripheral surface of the insulator and having lower electrical conductivity than the conductor. The conductor includes a base and a conductive layer disposed on an outer periphery of the base and having higher electrical conductivity than the base, and the conductive layer has a thickness of larger than 0.1 μm and equal to or smaller than 25 μm.
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6.发明授权公开(公告)号：US09362722B2
公开(公告)日：2016-06-07
申请号：US14377306
申请日：2012-11-29
IPC分类号： H01T13/20 , H01T13/38 , C04B35/117 , C04B35/626 , B82Y30/00 , F02P13/00
CPC分类号： H01T13/38 , B82Y30/00 , C04B35/117 , C04B35/62655 , C04B35/62695 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3217 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3418 , C04B2235/781 , C04B2235/785 , C04B2235/786 , C04B2235/788 , C04B2235/80 , F02P13/00
摘要： A spark plug exhibiting excellent withstand voltage characteristics and mechanical strength at high temperature, which are comparable to those at ambient temperature. The spark plug having an insulator formed of an alumina-based sintered material containing: an Al component, an Si component, a Group 2 element component, and a rare earth element component. The amounts of such components satisfy a condition (1): 0.25≦oxide-reduced amount (mass %) of the Si component ≦1.25, and a condition (2): 1.35≦[(oxide-reduced amount of the Si component)/((oxide-reduced amount of the Group 2 element component)/(oxide-reduced amount of the rare earth element component))]≦7.5. The alumina-based sintered material includes alumina grains, and a glass phase including a crystal phase that satisfies a condition (3) that the crystal phase includes at least one of an aluminate crystal phase and a silicate crystal phase, each having a grain size of 20 to 350 nm.
摘要翻译： 具有优异耐高压特性和高温机械强度的火花塞，与环境温度相当。 所述火花塞具有绝缘体，所述绝缘体由包含Al组分，Si组分，第2族元素组分和稀土元素组分的氧化铝基烧结材料形成。 这些成分的量满足条件（1）：0.25＆nlE; Si成分的氧化物还原量（质量％）＆lt; 1.25，条件（2）：1.35＆nlE; [（Si的氧化物还原量 成分）/（（第2族元素成分的氧化物还原量）/（稀土元素成分的氧化物还原量））＆lt; 7.5。 所述氧化铝系烧结体包含氧化铝粒子，以及含有结晶相的玻璃相，所述结晶相满足条件（3），所述结晶相包含铝酸盐结晶相和硅酸盐结晶相中的至少一种， 20〜350nm。
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公开(公告)号：US20150288150A1
公开(公告)日：2015-10-08
申请号：US14441315
申请日：2013-06-13
IPC分类号： H01T13/38
CPC分类号： H01T13/38 , C04B35/111 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3222 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3418 , C04B2235/3463 , C04B2235/786 , C04B2235/80 , C04B2235/85 , C04B2235/96 , H01B3/12 , H01B7/2806
摘要： A spark plug having an insulator formed of an alumina-based sintered material which contains an Si component and a rare earth element component that satisfy the following conditions (1) and (2): (1) an oxide-reduced amount of the Si component (mass %) is greater than or equal to 0.05 and less than or equal to 0.45; and (2) a ratio of an oxide-reduced amount of the rare earth element component to an oxide-reduced amount of the Si component is greater than or equal to 2.5 and less than or equal to 4.5, and which has alumina grains and an alumina grain boundary phase including a complex oxide crystal phase satisfying the following condition (3): (3) the complex oxide crystal phase contains at least two components selected from among an Al component, an Si component, a Group 2 element component, and a rare earth element component.
摘要翻译： 一种火花塞，其具有由含有Si成分和满足以下条件（1）和（2））的Si成分和稀土元素成分的氧化铝类烧结体形成的绝缘体：（1）氧化物还原量的Si成分 （质量％）大于或等于0.05且小于或等于0.45; 和（2）稀土元素成分的氧化物还原量与Si成分的氧化物还原量的比例大于或等于2.5且小于或等于4.5，并且具有氧化铝颗粒和 氧化铝晶界相包含满足以下条件（3）的复合氧化物晶相：（3）复合氧化物晶相含有选自Al成分，Si成分，2族元素成分和 稀土元素成分。
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公开(公告)号：US20150207300A1
公开(公告)日：2015-07-23
申请号：US14420819
申请日：2013-08-23
发明人： Hiroki Takeuchi , Yutaka Yokoyama , Kuniharu Tanaka , Takeshi Mitsuoka , Toshitaka Honda , Hirokazu Kurono , Katsuya Takaoka , Hironori Uegaki
CPC分类号： H01T13/38 , C04B35/10 , C04B35/111 , C04B2235/3201 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3222 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3232 , C04B2235/3418 , C04B2235/3481 , C04B2235/80 , C04B2235/85 , G01R31/12 , G01R31/14 , H01T13/60
摘要： A spark plug including an insulator containing an Al component, in terms of oxides, 89 mass % or more and a Ti component, in terms of oxides, more than 0 mass % and 0.2 mass % or less, characterized in that the insulator is formed of an alumina-based sintered material which contains, in a grain boundary phase present between alumina crystal grains, a first crystal phase containing at least one species selected from among an La component, an Nd component, a Pr component, a Y component, an Er component, a Yb component, and an Lu component, and a second crystal phase containing at least one species of Group 2 element components, an Al component and an Si component.
摘要翻译： 一种火花塞，其包括以氧化物计，89质量％以上的Al成分和Ti成分以氧化物计，大于等于0质量％和0.2质量％以下的绝缘体，其特征在于，形成所述绝缘体 的氧化铝系烧结体，其在存在于氧化铝晶粒之间的晶界相中含有含有选自La成分，Nd成分，Pr成分，Y成分， 铒组分，Yb组分和Lu组分，以及含有至少一种2族元素组分，Al组分和Si组分的第二晶相。
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公开(公告)号：US10090646B2
公开(公告)日：2018-10-02
申请号：US15315581
申请日：2015-06-02
发明人： Katsuya Takaoka , Kazuhiro Kurosawa , Kuniharu Tanaka , Hisashi Kozuka , Toshitaka Honda , Hirokazu Kurono , Haruki Yoshida , Hironori Uegaki
摘要： Disclosed is a spark plug capable of suppressing high-frequency noise by improving the material of an electrical connection part between a center electrode and a metal terminal within an axial hole of an insulator. A spark plug has an electrical connection part arranged in an axial hole of an insulator to establish electrical connection between a center electrode and a metal terminal. The electrical connection part includes a conductor having a first crystal phase formed of a Fe-containing oxide and a second crystal phase formed of a conductive metal oxide of perovskite crystal structure.
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公开(公告)号：US12114402B2
公开(公告)日：2024-10-08
申请号：US16975607
申请日：2019-11-13
IPC分类号： H05B3/06 , C04B35/581 , H01L21/683 , H05B3/03 , H05B3/12 , H05B3/20 , H05B3/28 , H05B3/74
CPC分类号： H05B3/12 , C04B35/581 , H05B3/03 , H05B3/06 , H05B3/20 , H05B3/283 , H05B3/74 , H01L21/683 , H05B2203/016
摘要： 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.
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