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:
May. 12, 2026
Filed:
Jul. 18, 2022
Mirai Speaker Inc., Tokyo, JP;
Hiroshi Tanaka, Tokyo, JP;
Masahiro Suzuki, Tokyo, JP;
Mirai Speaker Inc., Tokyo, JP;
Abstract
[Problem] Provided is a high-performance and high-quality curved diaphragm speaker system that is capable of reproducing sounds in a plurality of bands and achieves performance sufficient for hard-of-hearing people and hearing people. [Solution] A speaker unitof the present invention includes a first diaphragmin a corn form, a second diaphragmin a curved sheet form, and a driver unitthat drives both of the first diaphragm and the second diaphragm. A small diameter sideof the first diaphragm and one end sideof the second diaphragm are both connected to the driver unit. The second diaphragm has a plurality of regions having different resonance characteristics due to a change in the curvature of a diaphragm surface in the middle from the one end side to the other end side in a length direction. This speaker unit is attached to a housingto form a speaker