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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.:

US 12515510 B1

PDFFull Text
Date of Patent:
Jan. 06, 2026

Filed:

Nov. 08, 2022

Vibration damping device

Applicant:

Sumitomo Riko Company Limited, Aichi, JP;

Inventors:

Masaaki Hirano, Aichi, JP;

Takashi Kume, Aichi, JP;

Assignee:

Sumitomo Riko Company Limited, Aichi, JP;

Attorney:

JCIPRNET

Primary Examiner:

Robert A Siconolfi

Assistant Examiner:

Mahbubur undefined Rashid

Int. Cl.
CPC ...
B60K 5/12 (2006.01); F16F 13/10 (2006.01); F16F 13/30 (2006.01);
U.S. Cl.
CPC ...
B60K 5/1283 (2013.01); F16F 13/10 (2013.01); F16F 13/305 (2013.01); F16F 2222/06 (2013.01); F16F 2222/12 (2013.01); F16F 2224/045 (2013.01); F16F 2228/066 (2013.01); F16F 2230/18 (2013.01);
Abstract

In a vibration damping device applying a magnetic force from a magnetic field generation unit to an orifice path communicating with fluid chambers into which a magnetic functional fluid is filled and controlling vibration damping properties. An intermediate cylindrical member to which an outer cylindrical member formed by a non-magnetic material is externally fit and fixed is formed by a ferromagnetic material. In the intermediate cylindrical member, a magnetic field acting opening part is provided at a position corresponding to the orifice path.

Find Patent Forward Citations

Hirano, Masaaki. (2026). Vibration damping device (U.S. Patent No. 12515510). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12515510

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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