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:
Jan. 11, 2022
Filed:
Dec. 04, 2018
Applicant:
Showa Denko K.k., Tokyo, JP;
Inventors:
Assignee:
SHOWA DENKO K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 177/00 (2006.01); C10M 113/02 (2006.01); C10M 169/02 (2006.01); G01N 15/02 (2006.01); G01N 33/28 (2006.01); C10N 70/00 (2006.01);
U.S. Cl.
CPC ...
C10M 177/00 (2013.01); C10M 113/02 (2013.01); C10M 169/02 (2013.01); G01N 15/02 (2013.01); G01N 33/2888 (2013.01); C10M 2201/0416 (2013.01); C10M 2203/003 (2013.01); C10N 2070/00 (2013.01);
Abstract
A method for inspecting a lubricant oil composition containing a base oil and a fullerene, the method including: measuring at least one of a lamellar length of the lubricating oil composition and a most abundant diameter in a particle size distribution obtained by a dynamic light scattering method, and selecting the lubricating oil composition whose measured value is within a set range.