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.

Date of Patent:
Nov. 26, 2024

Filed:

Jun. 15, 2021
Applicant:

Kyb Corporation, Tokyo, JP;

Inventor:

Shinji Kato, Tokyo, JP;

Assignee:

KYB CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 129/74 (2006.01); C10M 129/76 (2006.01); C10M 169/04 (2006.01); C10N 40/08 (2006.01);
U.S. Cl.
CPC ...
C10M 129/74 (2013.01); C10M 129/76 (2013.01); C10M 169/04 (2013.01); C10M 2203/003 (2013.01); C10M 2207/2835 (2013.01); C10N 2040/08 (2013.01); F16F 2224/04 (2013.01); F16F 2230/04 (2013.01);
Abstract

Provided are a lubricant composition for shock absorbers, a lubricant additive, and a method of adjusting frictional property of a lubricant composition for shock absorbers, each capable of satisfying both the steering stability and ride comfort. The lubricant composition for shock absorbers contains a base oil and pentaerythritol esters and having frictional property represented by the following formula (1):>1.75×−0.05  (1)supposing that a ratio ({F−F}/F) of a difference, at the time of minute amplitude, between a peak frictional force Fin transition from a stationary state to a sliding state and an average frictional force Fto the average frictional force Fat the time of minute amplitude is responsiveness RI.


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