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, 2016
Filed:
Jul. 22, 2015
Fernandes Co., Ltd, Tokyo, JP;
Yoshihiro Ando, Tokyo, JP;
Fernandes Co., Ltd., Tokyo, JP;
Abstract
A string vibration sustaining device according to the present embodiment includes a rear pickup converting string vibration into an electrical signal, an amplifier amplifying the converted electrical signal, and an ultrathin electromagnetic driver converting the amplified electrical signal into a magnetic signal to excite strings. The ultrathin electromagnetic driver includes two magnetic pole plates formed of a magnetic material, a rare earth magnet arranged in parallel with the strings between the two magnetic pole plates, and a coil wound in a direction perpendicular to the strings around the rare earth magnet, is formed to be ultrathin to have an entire thickness equal to or smaller than 3 mm, and is arranged in a slight gap between a neck end portion and a front pickup of the electric guitar.