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. 28, 2017
Filed:
Jun. 15, 2012
Jin-ho Cho, Daegu, KR;
Hyung-gyu Lim, Daegu, KR;
Ki-woong Seong, Daegu, KR;
Jyung-hyun Lee, Gyeongsan-si, KR;
Jin-Ho Cho, Daegu, KR;
Hyung-Gyu Lim, Daegu, KR;
Ki-Woong Seong, Daegu, KR;
Jyung-Hyun Lee, Gyeongsan-si, KR;
KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, Buk-gu, Daegu, KR;
Abstract
The present disclosure provides a three-coil type round window driving vibrator, which includes a permanent magnet having the same magnetic poles adjoining each other and is designed to allow electric current flowing through coils to run in opposite directions in order to increase driving force without being affected by an external magnetic field. The round window driving vibrator includes a permanent magnet having three poles of SNS or NSN, a coil member wound around an outer periphery of the permanent magnet, and a vibration member connected to one end of the permanent magnet. Here, the coil member includes a first coil wound around a middle section of the permanent magnet and second and third coils wound around upper and lower sections of the permanent magnet, respectively.