US Patent 7267484 Fluid bearing device

Patent 7267484 was granted and assigned to NTN Corporation on September, 2007 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

NTN Corporation

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7267484

Date of Patent

September 11, 2007

Patent Application Number

10843672

Date Filed

May 12, 2004

Patent Primary Examiner

‌

Lenard A. Footland

Patent abstract

The preset invention aims to improve the assembly accuracy and rotation accuracy of a fluid bearing device, and to further reduce the cost thereof. A bearing sleeve is fixed on the inner periphery of a housing. An axial member is supported in a non-contact manner in a radial direction by an oil film formed in a radial bearing gap. The housing made of resin is injection molded with the use of a substrate as an insert part. On the substrate, a control circuit for controlling a polygon scanner motor is mounted.