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:
Jul. 03, 2012
Filed:
Aug. 09, 2007
Applicant:
Masaharu Hori, Kuwana, JP;
Inventor:
Masaharu Hori, Kuwana, JP;
Assignee:
NTN Corporation, Osaka-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16C 32/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
Peeling-off of an oil-repellent film can be reliably prevented. A fluid dynamic bearing device () includes a shaft member () and first and second flange portions () serving as seal portions fixed to the shaft member (). On outer peripheral sides of the first and second flange portions (), a first seal space (S) and a second seal space (S) are formed, respectively. Oil-repellent films () are provided on end surfaces of the first flange portion () and the second flange portion () separately from a pressure-receiving surface () subjected to pressure at a time of assembly, the end surfaces being exposed to external air.