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. 28, 2003
Filed:
Dec. 22, 2000
Applicant:
Inventor:
Hiroyoshi Teshima, Tottori, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 1/702 ;
U.S. Cl.
CPC ...
G11B 1/702 ;
Abstract
A plate form housing includes a winding. A sleeve which is a bearing is provided in a bearing mounting hole formed in the housing so as to be in the central position of the winding. A shaft mounting a rotor having a magnet confronting the winding supported on the sleeve. A magnetic disk is provided at the end of the shaft. The sleeve is fixed in the bearing mounting hole of the housing by using a conductive adhesive. In this manner, discharge breakdown or destruction of the information recorded in a magnetic disk due to electric charge generated in the magnetic disk rotating at high speed is prevented.