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:
Dec. 25, 2012
Filed:
Mar. 19, 2009
Sang Jin Kim, Gyeongsangnam-do, KR;
Sang Jin Kim, Gyeongsangnam-do, KR;
LG Innotek Co., Ltd., Seoul, KR;
Abstract
A vibration device according to an embodiment of the present invention includes upper and lower cases combined with each other to form a case, a magnetic force generating unit provided on at least one surface of the upper and lower cases, a vibrating unit including at least one magnet disposed to be opposite to the magnetic force generating unit, and a weight, and at least one elastic unit configured to support the vibrating unit elastically, the elastic unit having a first portion directly contacting the upper case and a second portion contacting the vibrating unit. Further, the first portion is arranged on a first circumference and the second portion is arranged on a second circumference, and wherein a diameter of the first circumference is larger than a diameter of the second circumference.