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:
Feb. 16, 2021
Filed:
Sep. 15, 2016
Applicants:
Honda Motor Co., Ltd., Tokyo, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Inventors:
Kentaro Komori, Wako, JP;
Daijiro Endo, Wako, JP;
Shuichi Sakanoue, Ichihara, JP;
Seiichiro Yamamoto, Tokyo, JP;
Assignees:
Honda Motor Co., Ltd., Tokyo, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/44 (2006.01); F16F 9/53 (2006.01); C10N 20/00 (2006.01); C10N 30/06 (2006.01); C10N 40/08 (2006.01); C10N 40/14 (2006.01); C10M 141/02 (2006.01);
U.S. Cl.
CPC ...
H01F 1/447 (2013.01); C10M 141/02 (2013.01); F16F 9/535 (2013.01); C10M 2207/126 (2013.01); C10M 2207/289 (2013.01); C10M 2215/042 (2013.01); C10M 2223/04 (2013.01); C10N 2020/055 (2020.05); C10N 2030/06 (2013.01); C10N 2040/08 (2013.01); C10N 2040/185 (2020.05);
Abstract
This vibration damping device () includes a magnetorheological fluid composition in a cylinder (). The magnetorheological fluid composition includes magnetic particles; a dispersant having the magnetic particles dispersed therein; and a friction modifier. The friction modifier is an ester-based additive having a hydrocarbon chain having 14 to 22 carbon atoms, preferably an alkyl chain or an alkenyl chain. The content of the friction modifier is 0.1 to 5 mass %.