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:
Mar. 03, 2015
Filed:
May. 22, 2012
Akihiro Kimura, Kyoto, JP;
Teiichi Hirono, Kyoto, JP;
Ryota Ogino, Kyoto, JP;
Kyoko Horise, Kyoko, JP;
Hiroyoshi Teshima, Kyoto, JP;
Masashi Hirayama, Kyoto, JP;
Akihiro Kimura, Kyoto, JP;
Teiichi Hirono, Kyoto, JP;
Ryota Ogino, Kyoto, JP;
Kyoko Horise, Kyoko, JP;
Hiroyoshi Teshima, Kyoto, JP;
Masashi Hirayama, Kyoto, JP;
Nidec Corporation, Kyoto-shi, JP;
Abstract
A first seal portion having a surface of a lubricating oil defined therein is defined between a sleeve portion and a bearing housing. A side communicating channel arranged to bring a first seal gap and a thrust gap into communication with each other is defined either between a sleeve portion and a bearing housing or in an outer circumferential portion of a sleeve portion. A second seal portion having another surface of a lubricating oil defined therein is defined in a gap constituted by a side minute gap between a thrust plate and a bearing housing and a lower minute gap between a thrust plate and a cap member.