The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 10, 2023

Filed:

Nov. 26, 2019
Applicant:

Nhk Spring Co., Ltd., Yokohama, JP;

Inventors:

Tsuyoshi Inuma, Kanagawa, JP;

Kazuya Soma, Kanagawa, JP;

Assignee:

NHK Spring Co., LTD., Yokohama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 1/073 (2006.01); G01R 1/067 (2006.01);
U.S. Cl.
CPC ...
G01R 1/07314 (2013.01); G01R 1/06722 (2013.01); G01R 1/06772 (2013.01);
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.


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