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:
Dec. 24, 2013
Filed:
Jul. 20, 2010
Manabu Komori, Kyoto, JP;
Mitsuya Kusuhara, Kyoto, JP;
Kunio Sakurada, Kyoto, JP;
Kazuya Sato, Kyoto, JP;
Manabu Komori, Kyoto, JP;
Mitsuya Kusuhara, Kyoto, JP;
Kunio Sakurada, Kyoto, JP;
Kazuya Sato, Kyoto, JP;
Nidec Corporation, Kyoto, JP;
Abstract
A fluid dynamic bearing includes: a shaft arranged along a center axis; an annular portion expanding radially outwards from the shaft; a sleeve having a top surface opposed to an under surface of the annular portion to support the shaft and the annular portion in a relatively rotatable manner; and a lubricating fluid interposed between the shaft and annular portion and the sleeve. The fluid dynamic bearing further includes a substantially annular edge surrounding the center axis on the under surface and a solid lubricating film on the radially outer side of the edge.