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:
Feb. 19, 2002
Filed:
Apr. 14, 1997
Applicant:
Inventor:
Hirochika Ueyama, Hirakata, JP;
Assignee:
Koyo Seiko Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 7/09 ;
U.S. Cl.
CPC ...
H02K 7/09 ;
Abstract
A magnetic bearing device comprising a magnetic bearing main body having at least electromagnets for magnetically levitating a rotary body and position sensors for detecting the position of the rotary body, and a controller connected to the main body by a cable for controlling the electromagnets based on output signals of the position sensors. The magnetic bearing main body is provided with memory means having stored therein characteristics of the rotary body and the electromagnets.