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:
Sep. 13, 2005
Filed:
Sep. 21, 2001
Applicants:
Nobuhiko Nishimura, Fujisawa, JP;
Mamoru Aoki, Fujisawa, JP;
Inventors:
Nobuhiko Nishimura, Fujisawa, JP;
Mamoru Aoki, Fujisawa, JP;
Assignee:
NSK Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C019/06 ;
U.S. Cl.
CPC ...
Abstract
A rolling bearingis provided to support the rotating member of a small motor of an information-processing device wherein the groove radius ratio of the raceway groove of the inner raceis in the range from 52% up to 54%, while the groove radius ratio of the raceway groove of the outer raceis in the range from 54% up to 56%, and whereby the small motor rotates at a high rotation speed with a prolonged acoustic life.