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:
Mar. 22, 2022
Filed:
Nov. 07, 2018
Applicant:
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Inventors:
Shuichi Sakanoue, Chiba, JP;
Tatsuya Hamachi, Chiba, JP;
Assignee:
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
C10M 141/10 (2006.01); C10M 101/02 (2006.01); C10M 127/04 (2006.01); C10M 137/02 (2006.01); C10M 169/04 (2006.01); C10N 30/02 (2006.01); C10N 30/10 (2006.01); C10N 30/12 (2006.01);
U.S. Cl.
CPC ...
C10M 141/10 (2013.01); C10M 101/02 (2013.01); C10M 127/04 (2013.01); C10M 137/02 (2013.01); C10M 169/04 (2013.01); C10M 2203/06 (2013.01); C10M 2223/049 (2013.01); C10M 2290/02 (2013.01); C10N 2030/02 (2013.01); C10N 2030/10 (2013.01); C10N 2030/12 (2013.01);
Abstract
Provided is a lubricating oil composition for a shock absorber, the lubricating oil composition being capable of emitting fluorescence by ultraviolet irradiation while ensuring thermal stability and abrasion resistance. This lubricating oil composition for a shock absorber contains, as components: (A) a base oil; (B) a hydrocarbon compound having a stilbene structure; and (C) a phosphite ester.