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:
Jun. 16, 2015
Filed:
Mar. 02, 2015
Nidec Corporation, Kyoto, JP;
Takatoki Sugi, Kyoto, JP;
Tomohiro Yoneda, Kyoto, JP;
Hiroshi Kobayashi, Kyoto, JP;
Takumi Shimomura, Kyoto, JP;
Nidec Corporation, Kyoto, JP;
Abstract
A spindle motor includes a shaft extending in an axial direction, and a base portion configured to define a portion of a housing, and including a through hole in which the shaft is inserted. The shaft includes a non-through hole portion, a first connection channel, and a second connection channel extending from the non-through hole portion in a radial direction. An upper portion of the hole portion includes a screw hole portion including a screw thread. A minimum diameter of the screw thread is greater than an inside diameter of the hole portion. A sealing member is located between the screw hole portion and the first connection channel.