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. 30, 2025
Filed:
Mar. 18, 2022
Applicant:
Hitachi Astemo, Ltd., Hitachinaka, JP;
Inventors:
Yosuke Fujikawa, Hitachinaka, JP;
Yosuke Murakami, Hitachinaka, JP;
Assignee:
Hitachi-Astemo, Ltd., Hitachinaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60G 17/015 (2006.01); B60G 17/044 (2006.01); B60G 17/08 (2006.01); B62K 25/04 (2006.01); F16F 9/46 (2006.01); F16F 15/02 (2006.01);
U.S. Cl.
CPC ...
B60G 17/015 (2013.01); B60G 17/044 (2013.01); B60G 17/08 (2013.01); B62K 25/04 (2013.01); F16F 9/46 (2013.01); F16F 15/02 (2013.01);
Abstract
A suspension device includes a spring, a jack, a reservoir chamber which reserves the oil, a first pump, a second pump an opening and closing unit. The second pump is configured to cause the oil to flow into the housing chamber and to cause the oil to flow out from the housing chamber.