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. 13, 2004
Filed:
Jun. 06, 2001
Hiroshi Kowaki, Kobe, JP;
Hiroyuki Yoshii, Ikoma, JP;
Other;
Abstract
A speaker structure having a simple configuration while maintaining good sound quality is disclosed. The speaker structure comprises a first speaker ( ) having a first vibration plate ( ), a first frame ( ) for fixing the perimeter of the first vibration plate and a first magnetic circuit ( ) for converting a signal into the vibration of the first vibration plate, a second speaker ( ) having a second vibration plate ( ), a second frame ( ) for fixing the perimeter of the second vibration plate and a second magnetic circuit ( ) for converting a signal into the vibration of the second vibration plate, and a fixing unit ( ) for fixing the first magnetic circuit and the second magnetic circuit at their backs.