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:
Nov. 18, 2025
Filed:
Nov. 28, 2023
Applicant:
Yamaha Corporation, Hamamatsu, JP;
Inventors:
Assignee:
Yamaha Corporation, Hamamatsu, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 9/06 (2006.01);
U.S. Cl.
CPC ...
H04R 9/06 (2013.01);
Abstract
A speaker unit includes a yoke, a magnet, a voice coil and a partitioner. The yoke includes a base portion and a protruding portion protruding from the base portion. The magnet is disposed on the base portion. The top plate is disposed on the magnet. A magnetic gap is formed between the top plate and the protruding portion. The voice coil is disposed in the magnetic gap. The partitioner is disposed in a surrounded-space surrounded by the yoke, the magnet and the top plate. The partitioner is spaced apart from the base portion. The partitioner includes at least one opening.