公开(公告)号：US20230251286A1

公开(公告)日：2023-08-10

申请号：US18161161

申请日：2023-01-30

Applicant: NHK SPRING CO., LTD.

Inventor： Hajime Arai ,  Kazuya Soma

IPC: G01R1/067

CPC classification number: G01R1/06738 ,  G01R1/06722

Abstract: A contact probe includes: a first plunger; a second plunger; and a coil spring provided between the first and second plungers and configured to connect the first and second plungers to each other so as to freely advance and retreat. The first plunger is provided with a groove portion formed on a side surface of the first plunger.

公开(公告)号：US20230138105A1

公开(公告)日：2023-05-04

申请号：US17911827

申请日：2021-03-17

Applicant: NHK Spring Co., Ltd.

Inventor： Tsuyoshi Inuma ,  Shuji Takahashi ,  Kazuya Soma ,  Takashi Nidaira ,  Yuya Hironaka

IPC: G01R31/28 ,  G01R1/073

Abstract: A probe unit includes: a plurality of first contact probes each coming into contact with an electrode to be contacted on one end side in a longitudinal direction; a second contact probe connected to an external ground; and a probe holder configured to hold the first and second contact probes, the probe holder including a first hollow portion configured to allow the first contact probes to be inserted therethrough and hold the first contact probes, a second hollow portion configured to allow the second contact probe to be inserted therethrough and hold the second contact probe, and a through-hole provided around the first hollow portion, wherein the probe holder includes a conductive portion that constitutes the through-hole and electrically connects the through-hole and the second contact probe.

公开(公告)号：US11940465B2

公开(公告)日：2024-03-26

申请号：US17437152

申请日：2020-03-12

Applicant: NHK Spring Co., Ltd.

Inventor： Kazuya Soma ,  Masahiro Takahashi ,  Shuji Takahashi

IPC: G01R1/073 ,  H01R12/71 ,  H01R13/24

CPC classification number: G01R1/07307 ,  H01R13/2421 ,  H01R12/714 ,  H01R2201/20

Abstract: A contact probe includes a first plunger, a second plunger, a coil spring, and a pipe; the first plunger includes a first slide portion that slides along the inner periphery of the pipe; the second plunger includes a second slide portion that slides along the inner periphery of the pipe; and the coil spring includes: a first attachment portion that is attached to the first plunger and tightly wound; a second attachment portion that is attached to the second plunger and tightly wound; a coarsely wound portion; a first contact portion including one end connected to the first attachment portion and another end connected to the coarsely wound portion and contacting the pipe; and a second contact portion including one end connected to the coarsely wound portion and another end connected to the second attachment portion and contacting to the pipe.

公开(公告)号：US20240019460A1

公开(公告)日：2024-01-18

申请号：US18352291

申请日：2023-07-14

Applicant: NHK Spring Co., Ltd.

Inventor： Osamu Ito ,  Kazuya Soma ,  Hajime Arai

IPC: G01R1/04 ,  G01R1/073

CPC classification number: G01R1/045 ,  G01R1/07335 ,  G01R1/06772

Abstract: A probe holder includes: a first layered member including members layered over one another; and a second layered member bonded to the first layered member and including members layered over one another. Each of the first and second layered members includes: a first member made of a material having a low dielectric constant; a second member provided on one of surfaces of the first member and having higher hardness than the first member; and a third member provided on the other surface of the first member and having higher hardness than the first member. The probe holder further includes a holder hole formed by bonding the third members of the first and second layered members, the holder hole penetrating the probe holder in a direction in which the first and second layered members are layered, and having a stepped hole shape having a smaller diameter in the second members.

公开(公告)号：US11782074B2

公开(公告)日：2023-10-10

申请号：US17295187

申请日：2019-11-26

Applicant: NHK Spring Co., Ltd.

Inventor： Tsuyoshi Inuma ,  Kazuya Soma

IPC: G01R1/073 ,  G01R1/067

CPC classification number: G01R1/07314 ,  G01R1/06722 ,  G01R1/06772

Abstract: A probe unit includes: first contact probes each coming into contact with a target electrode on one end side in a longitudinal direction; a second contact probe connected to an external ground; a signal pipe disposed around each first contact probes; a ground member provided around each signal pipe and configured to form an air layer with the signal pipe; a probe holder including a plate-shaped first and second members; a first wiring part provided at least on a front surface of the first member and electrically connected to the second contact probe; a second wiring part provided at least on a front surface of the second member and electrically connected to the second contact probe; a first conductive unit configured to electrically connect the first wiring part and the ground member; and a second conductive unit configured to electrically connect the second wiring part and the ground member.

公开(公告)号：US20220317155A1

公开(公告)日：2022-10-06

申请号：US17848603

申请日：2022-06-24

Applicant: NHK Spring Co., Ltd.

Inventor： Kohei Hironaka ,  Kazuya Soma

IPC: G01R1/073 ,  G01R1/04 ,  G01R1/067

Abstract: A probe unit includes: a signal probe configured to receive and output a signal from and to a predetermined circuit structure; a power supply probe configured to supply power to the predetermined circuit structure; a grounding probe configured to supply a ground potential to the predetermined circuit structure; and a conductive probe holder including a plurality of hole portions in which the signal probe, the power supply probe, and the grounding probe are insertable, the plurality of hole portions having a same hole shape as one another, wherein the signal probe, the power supply probe, and the grounding probe inserted into the plurality of hole portions are interchangeable with one another to change an arrangement of the signal probe, the power supply probe, and the grounding probe.

公开(公告)号：US11422156B2

公开(公告)日：2022-08-23

申请号：US16633597

申请日：2018-07-26

Applicant: NHK Spring Co., Ltd.

Inventor： Kohei Hironaka ,  Kazuya Soma

IPC: G01R1/073 ,  G01R1/04 ,  G01R1/067

Abstract: A contact probe includes: a cylindrical pipe member; a collar including a hollow portion and fixed to an inner circumferential side of at least one end in a longitudinal direction of the pipe member; and an inner conductor including a flange configured to abut on a stepped portion formed by the pipe member and the collar, the inner conductor being expandable and contractible along the longitudinal direction and penetrating the pipe member.

公开(公告)号：US20220011345A1

公开(公告)日：2022-01-13

申请号：US17295187

申请日：2019-11-26

Applicant: NHK Spring Co., Ltd.

Inventor： Tsuyoshi Inuma ,  Kazuya Soma

IPC: G01R1/073 ,  G01R1/067

Abstract: A probe unit includes: first contact probes each coming into contact with a target electrode on one end side in a longitudinal direction; a second contact probe connected to an external ground; a signal pipe disposed around each first contact probes; a ground member provided around each signal pipe and configured to form an air layer with the signal pipe; a probe holder including a plate-shaped first and second members; a first wiring part provided at least on a front surface of the first member and electrically connected to the second contact probe; a second wiring part provided at least on a front surface of the second member and electrically connected to the second contact probe; a first conductive unit configured to electrically connect the first wiring part and the ground member; and a second conductive unit configured to electrically connect the second wiring part and the ground member.