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:
Dec. 09, 2025
Filed:
Jul. 11, 2023
Antenna device, detection device, opening/closing unit control system, and occupant detection system
Alps Alpine Co., Ltd., Tokyo, JP;
Hiroyuki Takaoka, Miyagi-ken, JP;
Tomoki Ikeda, Miyagi-ken, JP;
Benjamin Uttalveroff, Miyagi-ken, JP;
Yuki Kato, Miyagi-ken, JP;
Takamitsu Shibayama, Miyagi-ken, JP;
Yukio Otaki, Miyagi-ken, JP;
Takashi Sano, Miyagi-ken, JP;
Alps Alpine Co., Ltd, Tokyo, JP;
Abstract
An antenna device includes: a circuit board; an antenna placed on the circuit board; and a reflector that is erected on the circuit board and extends along its surface. The reflector has: a convexly curved portion protruding toward the antenna, the convexly curved portion reflecting radio waves emitted by the antenna; and a first plane portion and second plane portion that extend from both sides of the convexly curved portion along the surface of the circuit board, form a V shape together with the convexly curved portion in plan view, and reflect radio waves emitted by the antenna. The surface of the convexly curved portion has a shape equivalent to a portion on the outer circumferential surface of a cylinder, the portion being the range of an azimuth angle with respect to a cylindrical axis. The convexly curved portion is inclined toward the antenna with respect to the circuit board.