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:
Sep. 27, 2011
Filed:
Dec. 19, 2006
Applicants:
Shinsuke Konuma, Yamagata, JP;
Akihiko Furuto, Yamagata, JP;
Kunio Mitobe, Yamagata, JP;
Inventors:
Assignees:
Pioneer Corporation, Tokyo, JP;
Tohoku Pioneer Corporation, Tendo-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 1/00 (2006.01); H04R 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A diaphragm of a speaker device, formed into an elongated configuration, has a recessed shape and includes a voice coil arrangement part extending in its longitude direction. The voice coil arrangement part has a gap with a constant width in its lateral direction and includes a voice coil supporting part for supporting a voice coil and an expanded part provided at a position along it.