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. 09, 2014
Filed:
Oct. 12, 2011
Ha Yong Jung, Gyunggi-do, KR;
Myung Hwa Choi, Gyunggi-do, KR;
Wang Hyun Kwon, Gyunggi-do, KR;
Hyung Kyu Kim, Daejeon, KR;
Kun Kim, Gyunggi-do, KR;
Ha Yong Jung, Gyunggi-do, KR;
Myung Hwa Choi, Gyunggi-do, KR;
Wang Hyun Kwon, Gyunggi-do, KR;
Hyung Kyu Kim, Daejeon, KR;
Kun Kim, Gyunggi-do, KR;
Samsung Electro-Machanics Co., Ltd., Gyunggi-Do, KR;
Abstract
Disclosed is a lubricating oil composition which includes a diester-based base oil having an asymmetric structure in which the number of carbons of the alkyl chain bound to one ester group with respect to a central atom is two more than that of the alkyl group bound to the other ester group, and which has low viscosity and a comparatively small amount of evaporation at high temperature. When this composition is used for a motor of a small hard disk, power consumption can be reduced and stability at high temperature can be enhanced.