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    PUNCH FOR RIVETING, DEVICE IN WHICH PUNCH FOR RIVETING IS DISPOSED, AND METHOD FOR JOINING MEMBERS
    1.
    发明公开
    PUNCH FOR RIVETING, DEVICE IN WHICH PUNCH FOR RIVETING IS DISPOSED, AND METHOD FOR JOINING MEMBERS 审中-公开

    公开(公告)号：EP4494779A1

    公开(公告)日：2025-01-22

    申请号：EP23770140.4

    申请日：2023-02-01

    Applicant: NHK Spring Co., Ltd.

    Inventor： ARAKI, Yoshihito ,  FUKUOKA, Yuusuke ,  FURUGORI, Nobuyuki

    IPC: B21J15/00 ,  B21J15/02 ,  B21J15/10

    Abstract: A novel punch for riveting with reduced load on a shaft of a rivet is provided. Alternatively, a device that is disposed with a novel punch for riveting with reduced load on a shaft of a rivet is provided. Alternatively, a method for joining members using a novel punch for riveting with reduced load on a shaft of a rivet is provided. A punch for riveting according to an embodiment of present invention includes joining a first member having a convex part and a second member having a through hole fitting with the convex part by plastically deforming the convex part, wherein a contact surface with the convex part is inclined in a range of 80° to 89° with respect to a center axis.

    - PLATE WITH FLOW PASSAGE
    2.
    发明公开
    - PLATE WITH FLOW PASSAGE 审中-公开

    公开(公告)号：EP3896722A1

    公开(公告)日：2021-10-20

    申请号：EP19897308.3

    申请日：2019-12-03

    Applicant: NHK Spring Co., Ltd.

    Inventor： ARAKI, Yoshihito ,  MOROTA, Shuhei ,  HANAMACHI,Toshihiko ,  YOKOYAMA, Hibiki

    IPC: H01L21/683

    Abstract: A plate with a flow channel according to the present invention includes: a main body portion in which a flow channel to let inert gas flow is formed; and a cover that covers a surface of the main body portion in which surface the flow channel is formed, wherein a buried member buried in an opening of the flow channel is provided in the flow channel of the main body portion, the buried member includes a buried portion fixed to the flow channel, and a flow portion that is held by the buried portion and that lets the inert gas flow from the inside to the outside of the main body portion, a plurality of through holes is provided in the flow portion, the buried member and the flow channel are fixed to each other by an insulating adhesive, and a ratio of a diameter of an outer circumference of the buried portion to a diameter of a smallest circle among circles including all the through holes is 1.2 or higher.

    LAMINATE AND METHOD FOR PRODUCING LAMINATE
    4.
    发明公开
    LAMINATE AND METHOD FOR PRODUCING LAMINATE 审中-公开

    公开(公告)号：EP3382059A1

    公开(公告)日：2018-10-03

    申请号：EP16868512.1

    申请日：2016-11-21

    Applicant: NHK Spring Co., Ltd.

    Inventor： ARAKI, Yoshihito ,  YAMAUCHI, Yuichiro

    IPC: C23C24/04 ,  B32B3/30 ,  B32B15/01

    Abstract: By spraying powder of non-metal onto a surface of a substrate having a high hardness by a cold spraying method to blast the surface of the substrate and then forming a film by the cold spraying method, a laminate having excellent adhesion between the substrate and the film and a method for manufacturing the laminate are provided. A laminate 1 includes a substrate 10 made of a metal or an alloy having a Vickers hardness of 120 HV or more and having irregularities on a surface thereof, and a film 11 formed on a surface of the substrate 10 and made of a metal or an alloy. The film 11 forms metal bonding with the substrate 10.

    STAGE, AND METHOD FOR MANUFACTURING STAGE
    6.
    发明公开
    STAGE, AND METHOD FOR MANUFACTURING STAGE 审中-公开

    公开(公告)号：EP3933065A1

    公开(公告)日：2022-01-05

    申请号：EP20766608.2

    申请日：2020-02-25

    Applicant: NHK Spring Co., Ltd.

    Inventor： HANAMACHI, Toshihiko ,  MOROTA, Shuhei ,  TAKIMOTO, Masaru ,  ARAKI, Yoshihito ,  YOKOYAMA, Hibiki ,  FUJII, Masahiro

    IPC: C23C4/12 ,  H01L21/3065 ,  H01L21/683

    Abstract: A stage includes a base material having a first surface and a second surface adjacent to the first surface, and an insulating film including a plurality of particles, each of the plurality of particles having a flat surface. The flat surface is provided along the first surface and the second surface. The base material includes a third surface in a direction 180 degrees opposite to the first surface, and a part of the flat surface included in the insulating film is provided along the third surface, and a surface obtained by extending the first surface and a surface obtained by extending the second surface intersect at 90 degrees. The base material includes a third surface in a direction 180 degrees opposite to the first surface, and a part of the flat surface included in the insulating film is provided along the third surface.

    HEAD FOR INJECTING REACTIVE GAS FOR FILM FORMATION AND METHOD FOR MANUFACTURING SAME
    8.
    发明公开
    HEAD FOR INJECTING REACTIVE GAS FOR FILM FORMATION AND METHOD FOR MANUFACTURING SAME 审中-公开

    公开(公告)号：EP4527975A1

    公开(公告)日：2025-03-26

    申请号：EP23849934.7

    申请日：2023-07-24

    Applicant: NHK Spring Co., Ltd.

    Inventor： ARAKI, Yoshihito ,  KANEDA, Noriyoshi

    IPC: C23C16/455

    Abstract: Disclosed is a method for manufacturing a head including: diffusion-bonding a first plate and a second plate to each other; and forming, after the diffusion bonding, a nickel-containing film on surfaces of the first plate and the second plate with electroless plating. The first plate and the second plate are configured to have a channel through which the reactive gas passes from a side of the first plate to a side of the second plate in a state where the first plate and the second plate are bonded.

    JOINING METHOD AND JOINT BODY
    9.
    发明公开
    JOINING METHOD AND JOINT BODY 审中-公开

    公开(公告)号：EP3900867A1

    公开(公告)日：2021-10-27

    申请号：EP19900978.8

    申请日：2019-12-13

    Applicant: NHK Spring Co., Ltd.

    Inventor： HANAMACHI, Toshihiko ,  FUJINO, Daisuke ,  TAKIMOTO, Masaru ,  ARAKI, Yoshihito ,  FUJII, Masahiro

    IPC: B23K20/00

    Abstract: A joining method according to the present invention is a joining method of joining a main body which is made of aluminum or an aluminum alloy and is formed with a passage through which a medium for promoting heat exchange is circulated and a cover which is made of aluminum or an aluminum alloy and covers the passage of the main body. The method includes: a covering step of covering the main body with the cover; and a diffusion bonding step of joining the main body and the cover by diffusion bonding under a condition in which a joining temperature is 500°C or higher and 640°C or lower, and a joining surface pressure is 0.7 MPa or higher.

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