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. 28, 2022
Filed:
Jun. 04, 2020
Nok Corporation, Tokyo, JP;
Takeshi Yamada, Kanagawa, JP;
Kento Tada, Kanagawa, JP;
NOK CORPORATION, Tokyo, JP;
Abstract
A millimeter-wave radar cover housing a millimeter-wave radar including an antenna and an electronic circuit configured to drive the antenna includes: a first site provided in front of the millimeter-wave radar to protect the millimeter-wave radar and transmit millimeter waves emitted from the antenna; and a second site including a housing space in which the antenna and the electronic circuit except for the first site are housed. The first site is made of a stacked structural body obtained by stacking at least one layer of a first constituent material having a negative relative permittivity in the frequency band of the millimeter waves and a second constituent material having a positive relative permittivity in the frequency band of the millimeter waves, and the stacked structural body is curved in a convex shape in a direction centered at an emission source of the millimeter electromagnetic waves and departing from the emission source.