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.
Patent No.:
Date of Patent:
Jun. 24, 2025
Filed:
Mar. 30, 2022
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Inventors:
Masahiro Tasaka, Nissin, JP;
Keizo Fukushima, Nagoya, JP;
Toshiyasu Takakuwa, Toyota, JP;
Michiharu Yamamoto, Hekinan, JP;
Tomohiko Nagao, Chita, JP;
Hitoshi Aoyama, Okazaki, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E01F 11/00 (2006.01); E01C 23/09 (2006.01); E01F 9/30 (2016.01); G01C 21/26 (2006.01);
U.S. Cl.
CPC ...
E01F 11/00 (2013.01); E01C 23/0993 (2013.01); E01F 9/30 (2016.02); G01C 21/26 (2013.01);
Abstract
A magnetic marker is embedded in a road, and is configured to be detected by a magnetic sensor provided in a vehicle. The magnetic marker is provided with a case accommodating a magnet and a protective material covering the magnet, and an anchor that is provided protruding downward from the case and that is configured to expand in diameter in a state of being embedded in the road.