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:
May. 15, 2012
Filed:
Feb. 28, 2007
Kenji Ito, Kuwana, JP;
Yoshiharu Inazuka, Kuwana, JP;
Isao Komori, Kuwana, JP;
Masaharu Hori, Kuwana, JP;
Masaaki Toda, Aichi, JP;
Kenji Ito, Kuwana, JP;
Yoshiharu Inazuka, Kuwana, JP;
Isao Komori, Kuwana, JP;
Masaharu Hori, Kuwana, JP;
Masaaki Toda, Aichi, JP;
NTN Corporation, Osaka-shi, JP;
Abstract
A fluid dynamic bearing device includes a housing injection molded with a bearing sleeve as an insert. Accordingly, the molding of the housing and the assembly of the housing and the bearing sleeve can be performed in a single step. In addition to this, by simply increasing the die precisions the housing and the bearing sleeve can be fixed easily with high precision. Since the housing is opened at both ends, it is possible to sandwich the bearing sleeve, and accordingly, the bearing sleeve can be accurately positioned inside the dies with reliability.