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    JOINED BODY AND ELECTROSTATIC CHUCK
    1.
    发明公开
    JOINED BODY AND ELECTROSTATIC CHUCK 审中-公开

    公开(公告)号：US20230226630A1

    公开(公告)日：2023-07-20

    申请号：US17922539

    申请日：2021-06-11

    Applicant: NGK SPARK PLUG CO., LTD.

    Inventor： Ryuichi ARAKAWA ,  Tomoo TANAKA ,  Osamu YOSHIMOTO

    IPC: B23K1/19

    CPC classification number: B23K1/19 ,  B23K2103/166

    Abstract: A joined body includes a first member, a second member, and a joining portion disposed therebetween and joining the first member and the second member. The joining portion includes a first joining layer on a side toward the first member and formed of a first joining material, a second joining layer on a side toward the second member and formed of a second joining material, and a metal layer therebetween and having a plurality of holes communicating with one another. The metal layer includes a first-joining-material-impregnated layer on a side toward the first joining layer and in which the plurality of holes are impregnated with the first joining material, a second-joining-material-impregnated layer on a side toward the second joining layer and in which the plurality of holes are impregnated with the second joining material, and an unfilled hole layer therebetween and in which the plurality of holes are void.

    SPARK PLUG
    2.
    发明申请
    SPARK PLUG 有权
    SPARK插头

    公开(公告)号：US20160276811A1

    公开(公告)日：2016-09-22

    申请号：US15030718

    申请日：2014-09-02

    Applicant: NGK SPARK PLUG CO., LTD.

    Inventor： Tomonori KANEMARU ,  Daisuke SUMOYAMA ,  Osamu YOSHIMOTO

    IPC: H01T13/39 ,  H01T13/32

    CPC classification number: H01T13/39 ,  H01T13/32

    Abstract: A spark plug having a tip provided on at least one of a center electrode and a ground electrode. The spark plug includes a center electrode and a ground electrode disposed providing a gap with the center electrode. At least one of the center electrode and the ground electrode includes a tip forming the gap. The tip has a main constituent of Ir. The tip contains Rh of 7 mass % or more to 31 mass % or less, Ru of 5 mass % or more to 20 mass % or less, and Pt of one-twentieth or more to one-half or less of a Ru content.

    Abstract translation: 一种火花塞，其具有设置在中心电极和接地电极中的至少一个上的尖端。 火花塞包括中心电极和设置成与中心电极间隙的接地电极。 中心电极和接地电极中的至少一个包括形成间隙的尖端。 尖端具有Ir的主要成分。 尖端包含7质量％以上至31质量％以下的Rh，5质量％以上至20质量％以下的Ru，Ru含量的二十分之一以上至二分之一以下的Pt。

    NOBLE METAL TIP FOR SPARK PLUG, ELECTRODE FOR SPARK PLUG, AND SPARK PLUG
    4.
    发明申请
    NOBLE METAL TIP FOR SPARK PLUG, ELECTRODE FOR SPARK PLUG, AND SPARK PLUG 有权

    公开(公告)号：US20230119721A1

    公开(公告)日：2023-04-20

    申请号：US17793826

    申请日：2021-02-02

    Applicant: NGK SPARK PLUG CO., LTD.

    Inventor： Osamu YOSHIMOTO ,  Tomoo TANAKA ,  Kengo HATTORI

    IPC: H01T13/39 ,  C22C5/04

    Abstract: A noble metal tip for a spark plug according to the present invention contains iridium (Jr) in an amount of 50 mass % or more and aluminum (Al) in an amount of 0.1 mass % or more and 5 mass % or less, and further contains rhodium (Rh), wherein a metallographic structure comprised of fiber-like elements R is observed, and the fiber-like elements R of the metallographic structure have an average aspect ratio of 150 or more and have an average length of 25 μm or less in a minor axis direction.

    SPARK PLUG
    5.
    发明申请
    SPARK PLUG 有权
    SPARK插头

    公开(公告)号：US20150357797A1

    公开(公告)日：2015-12-10

    申请号：US14655499

    申请日：2013-10-02

    Applicant: NGK SPARK PLUG CO., LTD.

    Inventor： Osamu YOSHIMOTO

    IPC: H01T13/39

    CPC classification number: H01T13/39 ,  F02P13/00 ,  H01T13/20 ,  H01T13/32

    Abstract: A spark plug is provided with: a central electrode; a ground electrode forming a spark discharge gap with the center electrode; and a chip welded to at least one of the electrodes. The chip has a thermal expansion coefficient smaller than a thermal expansion coefficient of the electrode to which the chip is welded, and the difference between the content A (mass %) of a noble metal component in the chip and the content B (mass %) of a noble metal component in the electrode (A−B) is 50 mass % or more. In an intermediate layer between the chip and the electrode, holes are present. When the length of a boundary between the chip and the intermediate layer is L (mm), and the length of the holes in a direction along the boundary of the chip and the intermediate layer is N (mm), 0.1≦N/L≦0.4.

    Abstract translation: 火花塞设有：中心电极; 与中心电极形成火花放电间隙的接地电极; 以及焊接到至少一个电极的芯片。 芯片的热膨胀系数小于焊接芯片的电极的热膨胀系数，芯片中贵金属成分的含量A（质量％）与含量B（质量％）之差 的电极（A-B）中的贵金属成分为50质量％以上。 在芯片和电极之间的中间层中，存在孔。 当芯片和中间层之间的边界的长度为L（mm）时，沿着芯片和中间层的边界的方向上的孔的长度为N（mm），0.1＆nlE; N / L＆ ; 0.4。

    ELECTRODE MATERIAL AND SPARK PLUG
    7.
    发明申请
    ELECTRODE MATERIAL AND SPARK PLUG 有权
    电极材料和火花塞

    公开(公告)号：US20150340844A1

    公开(公告)日：2015-11-26

    申请号：US14758891

    申请日：2014-01-08

    Applicant: NGK SPARK PLUG CO., LTD. ,  HITACHI METALS, LTD.

    Inventor： Osamu YOSHIMOTO ,  Tomonori KANEMARU ,  Takehito KUNO ,  Tomo-o TANAKA ,  Toshihiro UEHARA

    IPC: H01T13/39

    CPC classification number: C22C19/05 ,  H01T13/39

    Abstract: An electrode material for at least one of a center electrode (5) and a ground electrode (27) provided with a chip (31, 32) for use in a spark plug (1). The electrode material contains Ni as a principal component, and has a Si content of from 0.50% to 1.0% by mass, an Al content of from 0.2% to 2.0% by mass, a Cr content of from 12% to 34% by mass, a rare-earth element or the like content of from 0.03% to 0.2% by mass, a Fe content of more than 0% but not more than 20% by mass, a C content of not more than 0.10% by mass, and a Mn content of not more than 1.0% by mass. The total content of Si and Al is not less than 0.80% by mass, and less than one tenth of the Cr content.

    Abstract translation: 一种设置有用于火花塞（1）的芯片（31,32）中的中心电极（5）和接地电极（27）中的至少一个的电极材料。 电极材料含有Ni作为主要成分，Si含量为0.50〜1.0质量％，Al含量为0.2〜2.0质量％，Cr含量为12〜34质量％ ，0.03质量％〜0.2质量％的稀土元素等含量，Fe含量在0质量％以下20质量％以下，C含量在0.10质量％以下，以及 Mn含量不超过1.0质量％。 Si和Al的总含量不小于0.80质量％，小于Cr含量的十分之一。

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