US 12,391,836 B2
Lidar reflective material and marking system
Michael P. Rowe, Pinckney, MI (US); Frederick W. Mau, II, McKinney, TX (US); Songtao Wu, Ann Arbor, MI (US); and Debasish Banerjee, Ann Arbor, MI (US)
Assigned to Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US); and Toyota Jidosha Kabushiki Kaisha, Toyota (JP)
Filed by Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US)
Filed on Mar. 8, 2023, as Appl. No. 18/118,853.
Prior Publication US 2024/0301215 A1, Sep. 12, 2024
Int. Cl. C09D 5/33 (2006.01); C08K 3/04 (2006.01); C08K 3/22 (2006.01); C09D 5/02 (2006.01); C09D 7/20 (2018.01); C09D 7/40 (2018.01); C09D 7/61 (2018.01); C09D 175/04 (2006.01)
CPC C09D 5/004 (2013.01) [C09D 5/021 (2013.01); C09D 5/028 (2013.01); C09D 7/20 (2018.01); C09D 7/61 (2018.01); C09D 7/67 (2018.01); C09D 175/04 (2013.01); C08K 3/04 (2013.01); C08K 2003/2248 (2013.01); C08K 2003/2265 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method of marking a surface with a marking material, the method comprising:
selecting a surface to be marked;
applying the marking material to the surface, wherein
the marking material comprises:
a LiDAR-reflective material; and
a marking carrier, and
the LiDAR-reflective material comprises:
an average particle size that is from 5 nm to 15 nm;
a blackness My that is from 130 to 170;
a reflectivity in the visible spectrum of electromagnetic radiation that is ≤10%; and
a reflectivity in the near-IR and LiDAR spectrum of electromagnetic radiation that is ≥10%.