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:
Nov. 26, 2013
Filed:
Jun. 11, 2009
Fuminori Satoji, Kuwana, JP;
Toshiyuki Mizutani, Kuwana, JP;
Tetsuya Yamamoto, Kuwana, JP;
Isao Komori, Kuwana, JP;
Tetsuya Kurimura, Kuwana, JP;
Fuminori Satoji, Kuwana, JP;
Toshiyuki Mizutani, Kuwana, JP;
Tetsuya Yamamoto, Kuwana, JP;
Isao Komori, Kuwana, JP;
Tetsuya Kurimura, Kuwana, JP;
NTN Corporation, Osaka, JP;
Abstract
A fluid dynamic bearing device includes: a shaft member; a bearing sleeve which forms a radial bearing gap between the bearing sleeve and an outer peripheral surface of the shaft member; a housing which accommodates the bearing sleeve and is opened at both ends; and a lid member which closes an opening on one end side of the housing and forms thrust bearing portions. The housing is an injection-molded product into which the bearing sleeve is inserted, and the housing has another end with which a seal portion forming a seal space is integrally formed. The lid member is fitted with the outer peripheral surface of the housing by loose fitting so that the lid member and the housing are bonded and fixed to each other.