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:
Feb. 07, 2012
Filed:
Aug. 24, 2006
Teruaki Kaiya, Tendo, JP;
Teruaki Kaiya, Tendo, JP;
Pioneer Corporation, Tokyo, JP;
Tohoku Pioneer Corporation, Yamagata, JP;
Abstract
A drive coneand a diaphragmare integrally driven by a voice coilmovably disposed in a magnetic gap. Peripheral edge portions of the drive coneand the diaphragmare supported by a framevia different edge portionsand, respectively. The drive coneis provided with a rising-up portionwhich rises up toward an acoustic radiation direction from a inner circumferential end, and a rising-down portionwhich rises down toward a direction reverse to the acoustic radiation direction. An inner circumferential edge of the diaphragmis fixed at an annular top formed between the rising-up portion and the rising-down portion. Moreover, a first riband a second ribare formed on the drive conein such a manner as to rise up toward the acoustic radiation direction integrally with the drive cone. The diaphragmis supported also at the tips of the ribs.