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:
Sep. 10, 2024
Filed:
Jul. 03, 2020
Applicant:
Kyb Corporation, Tokyo, JP;
Inventor:
Shinji Kato, Tokyo, JP;
Assignee:
KYB CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F 9/32 (2006.01); C10M 125/24 (2006.01); C10M 129/74 (2006.01);
U.S. Cl.
CPC ...
F16F 9/3278 (2013.01); C10M 125/24 (2013.01); C10M 129/74 (2013.01); C10M 2201/085 (2013.01); C10M 2207/282 (2013.01); F16F 2230/04 (2013.01);
Abstract
To provide a lubricant composition for shock absorbers, a shock absorber, and a method for adjusting the friction of a lubricant composition for shock absorbers, each capable of satisfying both operational stability and ride comfort particularly at the time of a minute amplitude. The lubricant composition for shock absorbers contains a base oil and a friction adjusting agent, wherein the friction adjusting agent contains a pentaerythritol ester, the pentaerythritol ester contains a pentaerythritol tetraester at the highest proportion or in an amount of 50 mass % or more, and the pentaerythritol ester content is 0.5 mass % or more.