公开(公告)号：US20240201366A1

公开(公告)日：2024-06-20

申请号：US18556806

申请日：2022-05-18

Applicant: TOYODA GOSEI CO., LTD.

Inventor： Kozo HIROTANI ,  Kazuyoshi FUJIMOTO ,  Yosuke MARUOKA ,  Yutaka OTSUKA

IPC: G01S13/931 ,  H01Q1/32

CPC classification number: G01S13/931 ,  H01Q1/3233

Abstract: A millimeter wave transmissive decoration is arranged forward of a millimeter wave radar device in an emission direction of millimeter waves. The millimeter wave transmissive decoration includes a layer structure including layers stacked in the emission direction. The layers include a decorative layer and a plastic layer. At least part of the decorative layer is made of a white plastic layer. The plastic layer is in contact with the white plastic layer. The white plastic layer is made of a polycarbonate plastic containing particles of titanium oxide having a rutile crystal structure. A thickness in the emission direction of the white plastic layer is less than or equal to 2.0 mm. A permittivity of the white plastic layer is less than or equal to 3.1. An L value in a Lab color space of the white plastic layer is greater than or equal to 80.

公开(公告)号：US20220308206A1

公开(公告)日：2022-09-29

申请号：US17692723

申请日：2022-03-11

Applicant: TOYODA GOSEI CO., LTD.

Inventor： Risa HIRANO ,  Hiroko SHIBAKAWA ,  Norifumi HATTORI ,  Koji OKUMURA ,  Hideto MAEDA ,  Yutaka OTSUKA ,  Keisuke NISHIOKA ,  Kazuyoshi FUJIMOTO

IPC: G01S13/931 ,  F21S43/20 ,  F21S43/33 ,  G01S13/06 ,  G01S13/58 ,  B60R13/00

Abstract: A vehicle exterior part is configured to be arranged frontward of a millimeter wave radar device with respect to the transmission direction of millimeter waves. The vehicle exterior part includes an ornamental body, a light source that emits light, and a light diffuse reflection member. The light diffuse reflection member is millimeter wave-transmissive and diffuses and reflects light. The ornamental body includes a base and an ornamental layer. The base is millimeter wave-transmissive and diffuses and transmits the light. The ornamental layer is millimeter wave-transmissive and arranged frontward of the base with respect to the transmission direction. The light source, the ornamental body, and the light diffuse reflection member are arranged so that the light emitted from the light source is diffused and reflected by the light diffuse reflection member and directed toward the base.