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:
Jun. 12, 2001
Filed:
Aug. 06, 1999
Applicant:
Inventor:
Atsuhisa Kobori, Tokyo, JP;
Assignee:
Tonen Corporation, Saitama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
C10M / ;
Abstract
The present invention is a lubricant oil composition comprising a base oil as the major component which contains aromatic compounds at 1 wt % or less and paraffin and monocyclic naphthene compounds at 50 wt % or more as total content, and has a kinematic viscosity of 2 to 50 mm,/s at 100° C. and evaporated quantity of 16 wt % or less by the NOACK volatility test.