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:
Apr. 10, 2012
Filed:
May. 13, 2009
Hideo Yuasa, Shandong, CN;
Hidenori Motonaga, Shandong, CN;
Katsunari Fujita, Shandong, CN;
Wei Wang, Shandong, CN;
Hideo Yuasa, Shandong, CN;
Hidenori Motonaga, Shandong, CN;
Katsunari Fujita, Shandong, CN;
Wei Wang, Shandong, CN;
Hosiden Corporation, Yao-shi, Osaka, JP;
Abstract
An electroacoustic transducing device comprising: a magnetic circuit having a yoke, a magnet, and a pole piece; a vibration system having a diaphragm and a voice coil; and a frame which holds the magnetic circuit and the vibration system. The voice coil is placed in a magnetic gap, and has lead wires of the voice coil which are drawn out from the voice coil at positions which are remote from the diaphragm. Openings for air forming for forming slack portions in the lead wires are drawn out from the voice coil and are disposed in the frame. The lead wires are adequately subjected to the wire laying process, and the audio performance is prevented from being lowered.