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. 30, 2025
Filed:
Apr. 23, 2024
Alps Alpine Co., Ltd., Tokyo, JP;
Ryosuke Tachi, Fukushima, JP;
Ryo Ito, Fukushima, JP;
ALPS ALPINE CO., LTD., Tokyo, JP;
Abstract
A speaker that is configured to emit ultrasonic waves includes an ultrasonic emission unit, a reflector, and a louver unit. The ultrasonic emission unit is configured to emit ultrasonic waves in an emission direction. The reflector is disposed at a side of the ultrasonic emission unit from which the ultrasonic waves are emitted. The reflector is configured to reflect the ultrasonic waves emitted from the ultrasonic emission unit in a predetermined direction. The louver unit is disposed between the ultrasonic emission unit and the reflector. The louver unit includes slits formed therein in a manner such that the slits do not change a direction of the ultrasonic waves between the ultrasonic emission unit and the reflector, and do not change a direction of the ultrasonic waves reflected by the reflector. The louver unit is configured to inhibit entry of foreign matter into the ultrasonic emission unit.