Title:
MAGNETIC MARKER
Document Type and Number:
WIPO Patent Application WO/2023/182462
Kind Code:
A1
Abstract:
This magnetic marker (1) that is embedded in a road surface for use in vehicle driving assistance such as lane-associated autonomous steering or lane departure warnings is an assembly of a plurality of granular magnets (10) having a diameter of 1 mm. In the magnetic marker (1), adjacent magnets (10) among the plurality of magnets (10) are linked to one another using a foamed resin as a linking material. The magnetic marker (1) is provided with exceptional characteristics such that there is a possibility that a given extent of magnetic functionality can be maintained even when pavement is damaged, such as when potholes, which are holes in the road surface, are produced.
Inventors:
YAMAMOTO MICHIHARU (JP)
NAGAO TOMOHIKO (JP)
AOYAMA HITOSHI (JP)
NAGAO TOMOHIKO (JP)
AOYAMA HITOSHI (JP)
Application Number:
PCT/JP2023/011654
Publication Date:
September 28, 2023
Filing Date:
March 23, 2023
Export Citation:
Assignee:
AICHI STEEL CORP (JP)
International Classes:
G08G1/00; E01C1/00; H01F7/02
Domestic Patent References:
| WO2021106878A1 | 2021-06-03 |
Foreign References:
| JP2021077907A | 2021-05-20 | |||
| JP2020159115A | 2020-10-01 | |||
| KR20190023680A | 2019-03-08 |
Attorney, Agent or Firm:
OIKE Tatsuya (JP)
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