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.:

US 7448804 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 11, 2008

Filed:

Mar. 26, 2007
Applicants:

Fuminori Satoji, Mie-ken, JP;

Seiji Shimizu, Mie-ken, JP;

Kenji Ito, Mie-ken, JP;

Isao Komori, Mie-ken, JP;

Ryouichi Nakajima, Mie-ken, JP;

Inventors:

Fuminori Satoji, Mie-ken, JP;

Seiji Shimizu, Mie-ken, JP;

Kenji Ito, Mie-ken, JP;

Isao Komori, Mie-ken, JP;

Ryouichi Nakajima, Mie-ken, JP;

Assignee:

NTN Corporation, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 32/06 (2006.01);
U.S. Cl.
CPC ...
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.


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