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:
Jul. 19, 2011
Filed:
Jun. 15, 2005
Mikio Fukuda, Suginami-ku, JP;
Mikio Fukuda, Suginami-ku, JP;
Temco Japan Co., Ltd,, , JP;
Abstract
The object is to provide a bone conduction device and its tympanum, wherein the bone conduction device can be efficiently mounted without generating a dead space in a case having a limited installation space such as a cellular phone's case having a large display screen. A magnetic sound converter device has an outer magnetic structure wherein a voice coil () is mounted on a center magnetic pole () of a yoke () and a magnet () is arranged on the outer side of the voice coil (). The yoke () and the center magnetic pole () thereof are vertically long, the magnet () is arranged on the short side edge parts on the both sides of the yoke, and a tympanum fixing part () is arranged on the outer side of each magnet () on a magnet arrangement axis.