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:
Jan. 10, 2012
Filed:
Jul. 25, 2006
Applicants:
Haruhiko Ito, Kyoto, JP;
Hitoshi Takaki, Kyoto, JP;
Toshihide Sonoda, Kyoto, JP;
Takuya Yamane, Kyoto, JP;
Inventors:
Haruhiko Ito, Kyoto, JP;
Hitoshi Takaki, Kyoto, JP;
Toshihide Sonoda, Kyoto, JP;
Takuya Yamane, Kyoto, JP;
Assignee:
Nidec Corporation, Kyoto, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A cone part in a chucking device capable of freely attaching and detaching a disc having a disc shape includes an abutting portion for abutting an inner peripheral surface of a central through hole of the disc with substantially equal forces along an entire circumference thereof and aligning the disc. The cone part is made of a resin material having a high slidability than that of a material used for the disc.