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:
Apr. 25, 1989
Filed:
Oct. 08, 1987
Applicant:
Inventors:
Etsurou Hirose, Hitachi, JP;
Toshio Tsubaki, Hitachi, JP;
Takeshi Tokunaga, Hitachi, JP;
Osamu Isoo, Hitachi, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360 9701 ;
Abstract
A drive motor is premounted on one control substrate disposed only on one side of a body. The control substrate, a mounting plate on which a collet mechanism and others are installed, a head mechanism, a stepping motor, and a front panel are detachably provided on the body at every part. After general assembly of the magnetic disc driving device, parts which constitute the magnetic disc driving device can thus be checked and serviced in a simple manner.