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. 01, 2026
Filed:
Feb. 22, 2022
Mitsubishi Heavy Industries Engine & Turbocharger, Ltd., Sagamihara, JP;
Takaya Futae, Tokyo, JP;
Hideaki Nishida, Tokyo, JP;
Shuichi Isayama, Tokyo, JP;
Naomichi Shibata, Sagamihara, JP;
Shingo Tanaka, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD., Sagamihara, JP;
Abstract
A gas bearing device having a housing provided around a rotary shaft and forms an annular gap between the housing and the rotary shaft; a top foil provided to surround the rotary shaft within the annular gap; and a backup foil provided to surround the top foil on the outside of the top foil within the annular gap. The backup foil member includes: a middle side backup foil disposed in a middle side region that includes at least a center position in the axial direction of the rotary shaft, made up of a plurality of layers of back foils; and end side backup foils disposed in end portion side regions on both sides of the middle side region in the axial direction, made up of a single layer or a plurality of layers of backup foils having a number of layers less than that in the middle side region.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile