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:
Sep. 23, 2025

Filed:

Mar. 23, 2022
Applicant:

Aichi Steel Corporation, Tokai, JP;

Inventors:

Michiharu Yamamoto, Tokai, JP;

Tomohiko Nagao, Tokai, JP;

Hitoshi Aoyama, Tokai, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D 1/244 (2024.01); E01F 9/30 (2016.01); H01F 7/02 (2006.01); G05D 105/28 (2024.01);
U.S. Cl.
CPC ...
G05D 1/244 (2024.01); E01F 9/30 (2016.02); H01F 7/0205 (2013.01); G05D 2105/28 (2024.01);
Abstract

In a designing method for setting a specification of an individual-piece magnetic marker to be laid on a road surface, a specification of the magnetic marker is appropriately set based on a correlation coefficient between a first distribution of strengths of magnetism in a forwarding direction acting on a position at a minimum attachment height in a range of attachment heights of the magnetic sensor assumed in respective vehicles and a second distribution representing a distribution of strengths of magnetism in the forwarding direction acting on the position at the minimum attachment height when magnetism is assumed to be generated from a one-point magnetism generation source.


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