公开(公告)号：US11408915B2

公开(公告)日：2022-08-09

申请号：US17043723

申请日：2019-04-10

Applicant: NIDEC-READ CORPORATION

Inventor： Masami Yamamoto

IPC: G01R1/067 ,  G01R3/00 ,  H01B1/02 ,  H01B13/00 ,  G01R1/04

Abstract: A cylindrical body is formed of a conductive member provided with a spiral spring portion. Further, the cylindrical body includes a Ni metal layer and a Ni—W alloy layer containing W, and an end portion of the Ni—W alloy layer protrudes to an outer side of the Ni metal layer.

公开(公告)号：US11415599B2

公开(公告)日：2022-08-16

申请号：US16466656

申请日：2017-10-04

Applicant: NIDEC READ CORPORATION

Inventor： Masami Yamamoto ,  Norihiro Ota ,  Shigeki Sakai

IPC: G01R1/067 ,  G01R31/00 ,  G01R3/00 ,  G01R31/28

Abstract: A contact probe may include a Ni pipe that may include a coiled spring structure, and the Ni pipe 11 may contain 0.5 to 10 wt % of phosphorus (P). The contact probe may have improved durability, by reducing shrinkage, after probing performed in a high temperature environment.

公开(公告)号：US10782317B2

公开(公告)日：2020-09-22

申请号：US15989271

申请日：2018-05-25

Applicant: NIDEC READ CORPORATION

Inventor： Masami Yamamoto ,  Norihiro Ota ,  Shigeki Sakai

IPC: G01R1/067 ,  C25D5/48 ,  C25D3/12 ,  C25D5/14 ,  C25D5/12 ,  C25D1/04 ,  G01R35/00 ,  C23C18/16 ,  C23C18/42 ,  C25D1/20 ,  C25D3/56

Abstract: Provided is a contact probe which may achieve improved heat resistance even when a spring portion thereof is compressed and released in a high temperature environment. The contact probe includes an Ni—P layer, and the Ni—P layer has different concentrations of P at different positions in a thickness direction of the Ni—P layer.