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. 22, 2011
Filed:
Apr. 23, 2008
Hosei Kudou, Kyoto, JP;
Hirofumi Takayama, Kyoto, JP;
Takashi Nishina, Kyoto, JP;
Masaaki Inagi, Kyoto, JP;
Hosei Kudou, Kyoto, JP;
Hirofumi Takayama, Kyoto, JP;
Takashi Nishina, Kyoto, JP;
Masaaki Inagi, Kyoto, JP;
Nidec Corporation, Kyoto, JP;
Abstract
A gas is fed, so as to cause a gas flow to occur from a lower opening of a bearing hole of a sleevein an outward direction of an annular portionof a rotor hubvia a radial gapand an upper opening of the bearing hole, thereby lifting a rotor sectionIn a condition where the rotor sectionis lifted, the magnitude of run-out synchronized with the rotation of the rotor sectionis measured by using a displacement gaugeThen, based on the magnitude of run-out synchronized with the rotation, the run-out of the rotor sectionis adjusted.