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:
Jul. 22, 1997
Filed:
Jun. 21, 1994
Yuichi Koizumi, Kanagawa-ken, JP;
Shohei Honda, Hiratsuka, JP;
Atsushi Ito, Kanagawa-ken, JP;
Yoshihiko Kinoshita, Odawara, JP;
Nobuyuki Okunaga, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a closed housing of a magnetic disk memory device are accommodated a spindle motor for rotatably holding a magnetic disk medium for storage of information, a magnetic head for recording and reproducing information into and from the magnetic disk medium, a head positioning mechanism for moving the magnetic head to any position on the magnetic disk medium, and so forth. A printed board having thereon control circuit parts for controlling the spindle motor and the head positioning mechanism and recording/reproducing circuit parts for effecting the recording/reproduction by the magnetic head is arranged outside of the housing. An opening corresponding to a component of the magnetic disk memory device is formed in a certain region of the housing opposing the printed board. A shielding member for preventing a dust from entering into the housing is provided for the opening. The shielding member has a sheet-like or cup-like form and the device is constructed corresponding to the unevenness or uneven arrangement of components, thereby making it possible to reduce the thickness of the device. The commonization of the shielding member for disk devices is possible and a distance between a printed board and the housing can be reduced for the whole of the device.