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    BENDING STRUCTURAL BODY
    41.
    发明公开
    BENDING STRUCTURAL BODY 审中-公开

    公开(公告)号：US20230330871A1

    公开(公告)日：2023-10-19

    申请号：US18034047

    申请日：2021-10-29

    Applicant: NHK SPRING CO., LTD.

    Inventor： Takafumi HIRATA ,  Yuki HOTODA ,  Masahiro INABA ,  Yuki HAYAKAWA

    IPC: B25J18/06 ,  B25J9/10

    CPC classification number: B25J18/06 ,  B25J9/104

    Abstract: The present invention provides a bending structural body with which a simplified structure can be achieved. The bending structural body comprises: an inner cylinder that is formed from a first inner coil part and a first outer coil part, and in which wound parts corresponding to the first inner coil part are respectively fitted to pitches between adjacent wound parts of the first outer coil part; an outer cylinder that covers at least some of the outer circumference of the inner cylinder with a space therebetween, that is formed from a second inner coil part and a second outer coil part, and in which wound parts corresponding to the second inner coil part are respectively fitted to pitches between adjacent wound parts of the second outer coil part; and drive wires and guide wires that are guided and axially inserted into the space between the inner cylinder and the outer cylinder.

    Method for manufacturing stabilizer
    42.
    发明授权
    Method for manufacturing stabilizer 有权

    公开(公告)号：US11786960B2

    公开(公告)日：2023-10-17

    申请号：US17439583

    申请日：2020-03-12

    Applicant: NHK SPRING Co., Ltd.

    Inventor： Hiroshi Mizukami ,  Masato Inaba ,  Masato Sugawara ,  Michiya Masuda

    IPC: B21K1/06 ,  B60G21/02

    CPC classification number: B21K1/06 ,  B60G21/026

    Abstract: A method for manufacturing a stabilizer, the stabilizer including a main body bar that is elastically deformable, and a pair of connecting plates that are separately connected to a pair of left and right suspension devices, the method including a forging step of forming the connecting plate by forging both end portions of a material tube, in which in the forging step, both end portions of the material tube are crushed in a radial direction to be formed into the connecting plate in a state where a sealing metal plate heated to a temperature equal to or higher than a melting point is disposed inside both end portions of the material tube heated to a temperature lower than the melting point.

    COIL SPRING
    43.
    发明公开
    COIL SPRING 审中-公开

    公开(公告)号：US20230304556A1

    公开(公告)日：2023-09-28

    申请号：US18076717

    申请日：2022-12-07

    Applicant: NHK SPRING CO., LTD.

    Inventor： Shinichi NISHIZAWA ,  Daisuke IBANO ,  Tsuyoshi MATSUDA ,  Norifumi ARISAKA ,  Shun MURAMATSU ,  Chihiro ITO ,  Takuto SUZUKI ,  Masatake KINOSHITA ,  Asuka KAWASAKI

    IPC: F16F1/04 ,  C09D175/04

    CPC classification number: F16F1/042 ,  C09D175/04

    Abstract: A coil spring includes a wire rod and an elastic coat provided on the wire rod. The coil spring includes a coil section including a plurality of coil portions. The wire rod includes a round cross-sectional portion, a cross-section varying portion, and a rectangular cross-sectional portion along the longitudinal direction of the wire rod. The cross section of the rectangular cross-sectional portion is substantially square and has a first plane and a second plane. The first plane and the second plane oppose each other in the coil section. The elastic coat is provided on at least one of the first plane and the second plane. The elastic coat is continuous from the round cross-sectional portion to the cross-sectional variation portion and the rectangular cross-sectional portion.

    FLEXURE OF SUSPENSION FOR DISK DRIVE AND SUSPENSION FOR DISK DRIVE
    45.
    发明公开
    FLEXURE OF SUSPENSION FOR DISK DRIVE AND SUSPENSION FOR DISK DRIVE 审中-公开

    公开(公告)号：US20230267956A1

    公开(公告)日：2023-08-24

    申请号：US18172209

    申请日：2023-02-21

    Applicant: NHK SPRING CO., LTD.

    Inventor： Yukie YAMADA

    IPC: G11B5/48

    CPC classification number: G11B5/4833

    Abstract: A flexure of a suspension for a disk drive includes a metal base and a wiring portion provided along the metal base and including a base insulation layer, a conductor layer overlaid on the base insulation layer, and a cover insulation layer overlaid on the conductor layer. The flexure includes a first area on which an electronic component is mounted and a second area aligned alongside the first area, and the first area includes a thin-walled portion which overlaps the electronic component and having a thickness less than a thickness of the second area.

    Plate spring member
    46.
    发明授权
    Plate spring member 有权

    公开(公告)号：US11719299B2

    公开(公告)日：2023-08-08

    申请号：US17041011

    申请日：2019-03-28

    Applicant: NHK SPRING Co., Ltd.

    Inventor： Yusuke Terada

    IPC: F16F1/32

    CPC classification number: F16F1/32 ,  F16F2226/02 ,  F16F2228/08 ,  F16F2238/022

    Abstract: A plate spring member having a compressive residual stress distribution in which a compressive residual stress of at least part of a portion having a depth from a surface within 50 μm is 500 MPa or more, and the compressive residual stress of a portion having a depth from the surface exceeding 50 μm is less than 500 MPa.

    STAGE AND MANUFACTURING METHOD THEREOF
    48.
    发明公开
    STAGE AND MANUFACTURING METHOD THEREOF 审中-公开

    公开(公告)号：US20230207286A1

    公开(公告)日：2023-06-29

    申请号：US18176749

    申请日：2023-03-01

    Applicant: NHK SPRING CO., LTD.

    Inventor： Hibiki YOKOYAMA ,  Naoya KIDA ,  Jun FUTAKUCHIYA ,  Noriyoshi KANEDA ,  Michiyoshi SONE

    IPC: H01J37/32 ,  C23C4/11

    CPC classification number: H01J37/32715 ,  C23C4/11

    Abstract: A stage includes a base material including a step portion and an insulating film. The step portion includes a first surface recessed from a top surface of the base material and a second surface recessed from a side surface of the base material. The insulating film includes a plurality of first layers on the first surface and a plurality of second layers on the second surface. In the step portion, each first end portion of the plurality of first layers and each second end portion of the plurality of second layers are alternately stacked. The first surface and the second surface are connected via a corner, and each first end portion and each second end portion are alternately stacked at the corner.

    INSPECTION METHOD, MANUFACTURING METHOD AND INSPECTION SYSTEM OF DISK DRIVE SUSPENSION
    50.
    发明公开
    INSPECTION METHOD, MANUFACTURING METHOD AND INSPECTION SYSTEM OF DISK DRIVE SUSPENSION 审中-公开

    公开(公告)号：US20230168072A1

    公开(公告)日：2023-06-01

    申请号：US17986408

    申请日：2022-11-14

    Applicant: NHK SPRING CO., LTD.

    Inventor： Kenichiro NAKANO

    IPC: G01B5/06 ,  G11B27/36

    CPC classification number: G01B5/061 ,  G11B27/36

    Abstract: According to an embodiment, an inspection method inspects a disk drive suspension including an electronic component having first and second side surfaces in a first direction, a first and second adhesives provided along the side surfaces. The method includes measuring a first height in a first position of the first adhesive, measuring a second height in a second position of the second adhesive, and determining whether at least one of a position of application of the first and second adhesives in the first direction and an amount of application of the first and second adhesives is appropriate based on the first and second heights.

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