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:
Jun. 27, 2023
Filed:
Sep. 20, 2018
Hitachi Astemo, Ltd., Ibaraki, JP;
Yasuhisa Omata, Yokohama, JP;
Naoya Kubo, Itoshima, JP;
Toshifumi Komatsu, Okayama, JP;
Ikuo Akai, Atsugi, JP;
HITACHI ASTEMO, LTD., Hitachinaka, JP;
Abstract
In a cylinder device, a rod of which one end portion is joined to a piston in a cylinder and the other end portion protrudes from an opening portion of the cylinder includes a first member that is a hollow cylindrical member in sliding contact with a sliding contact member, and a second member that does not come into sliding contact with the sliding contact member. An outer diameter of at least a first member side end portion of the second member is smaller than an outer diameter of the first member. An inner peripheral portion of the first member is joined to an outer peripheral portion of the second member by friction weld joining.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile