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. 11, 2012
Filed:
Mar. 31, 2009
Applicant:
Takayuki Kawamura, Mie, JP;
Inventor:
Takayuki Kawamura, Mie, JP;
Assignee:
NTN Corporation, Osaka, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 233/14 (2006.01); C10M 169/04 (2006.01); B01F 17/34 (2006.01); C07C 55/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a grease composition () which has a low friction and a low viscosity and is durable at a high temperature and a grease-sealed bearing () in which the grease composition is enclosed. The grease composition contains base oil, a thickener, and an additive. The base oil contains an ionic liquid consisting of a cation component and an anion component. The additive contains a corrosion inhibitor such as nitrites, molybdates or dibasic acid salts. The thickener is fluorine resin such as polytetrafluoroethylene. The grease composition () is applied to a periphery of each rolling element () of the grease-sealed bearing ().