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. 26, 2010
Filed:
Mar. 15, 2006
Yasuhisa Abe, Yamagata, JP;
Hiroyuki Kobayashi, Yamagata, JP;
Yasuhisa Abe, Yamagata, JP;
Hiroyuki Kobayashi, Yamagata, JP;
Pioneer Corporation, Tokyo, JP;
Tohoku Pioneer Corporation, Tendo-shi, JP;
Abstract
A speaker apparatus includes at least one of an inner flux applicator and an outer flux applicator includes an annular first member and an annular second member. The first member having a first surface that faces toward the magnetic gap, the first member satisfying LWwhere Lis a length of the first surface in a direction parallel to the central axis and Wis a width of the first member in a direction orthogonal to a central axis. The second member is magnetically coupled with the first member and arranged on an outer side of the first member, the second member satisfying WLwhere Wis a width of the second member in a direction orthogonal to a central axis and Lis a length of the second surface in a direction parallel to the central axis, and LL