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:
Jan. 20, 2026
Filed:
Aug. 25, 2023
Alps Alpine Co., Ltd., Tokyo, JP;
Ryo Ito, Fukushima, JP;
ALPS ALPINE CO., LTD., Tokyo, JP;
Abstract
In a frame, a diaphragm and an edge member are provided on a first side, and a magnetic driving portion having a magnetic circuit and a voice coil is provided on the second side. An edge support member is interposed between the edge accepting portion of the frame and the outer circumference fixing portion of the edge member. Part of the edge support member is a restricting portion extending toward the center of the frame. The restricting surface of the restricting portion faces the back of the edge member and diaphragm so as to be spaced with a distance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile