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:
Oct. 29, 2013
Filed:
Jan. 19, 2012
Katsuki Yamaguchi, Kyoto, JP;
Shigeki Horiki, Kyoto, JP;
Yoshitsugu Hideshima, Kyoto, JP;
Akio Tatsumi, Kyoto, JP;
Akinobu Sumiji, Kyoto, JP;
Takehito Tamaoka, Kyoto, JP;
Kazushi Miura, Kyoto, JP;
Mitsuhiro Takemoto, Kyoto, JP;
Katsuki Yamaguchi, Kyoto, JP;
Shigeki Horiki, Kyoto, JP;
Yoshitsugu Hideshima, Kyoto, JP;
Akio Tatsumi, Kyoto, JP;
Akinobu Sumiji, Kyoto, JP;
Takehito Tamaoka, Kyoto, JP;
Kazushi Miura, Kyoto, JP;
Mitsuhiro Takemoto, Kyoto, JP;
Nidec Corporation, Kyoto, JP;
Abstract
A method of manufacturing a bearing mechanism of a motor includes steps a)-e). In step a), a bearing assembly is assembled. In step b), an upper seal gap between an upper thrust portion and an upper hub annular portion is arranged to face downward to increase the width of a gap between an outer tubular portion and a flange portion, or a lower seal gap between the outer tubular portion and a lower hub annular portion is arranged to face downward to increase the width of a gap between the upper thrust portion and the flange portion. In step c), pressure in all gaps is reduced. In step d), lubricating oil is injected into the upper or lower seal gap which faces upward, and a predetermined time or longer is allowed to pass. In step e), pressure is returned to atmospheric pressure.