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:
May. 13, 2025

Filed:

Feb. 08, 2023
Applicant:

Proterial, Ltd., Tokyo, JP;

Inventors:

Yohei Shirakawa, Tokyo, JP;

Yuta Sugiyama, Tokyo, JP;

Yukio Ikeda, Tokyo, JP;

Assignee:

Proterial, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 5/20 (2006.01); B62D 15/02 (2006.01);
U.S. Cl.
CPC ...
G01D 5/204 (2013.01); B62D 15/0225 (2013.01);
Abstract

A position detection device for detecting a position of a shaft moving forward and backward in an axial direction is provided with a detection object attached to the shaft, an excitation coil for generating an alternating magnetic field, and a detection coil arranged along an axial direction of the shaft. A magnitude of a voltage induced in the detection coil varies in accordance with a position of the detection object.


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