Fujitsu Corporation

Shoji Samma

Takahisa Mihara

Sigeo Saito

Ichi Satoh

Toshiyuki Hachiya

John A Ycas

Wayne G Soderfelt

Takayuki Bitoh

Gary Kelsic

A sealed structure for an electronic device, the sealed structure includes a base, a concave cover enclosing electronic components of the electronic device when the cover is fitted to the base, and a gasket-like sealing member that fits between edge portions of the cover and the base to seal the enclosure. A rib portion is formed on at least one of either the cover or the base so as to prevent the sealing member from protruding from the edge portions of the cover and base, thus providing an improved seal.

Sealed structure for an electronic device

A housing includes a base plate and a metallic cover. The cover may be formed by deep-drawing. The housing accommodates, for example, a magnetic disk, a magnetic head, and a drive mechanism. The drive mechanism serves to displace the magnetic head with respect to the magnetic disk. When the cover is coupled to the base plate, a screw is screwed, penetrating the cover, into the tip end of the carriage axis for supporting a carriage. Vibration caused by swinging movement of the carriage is transmitted to the cover through the screw. A vibration absorber adhered to the outer surface of the cover is adapted to absorb the transmitted vibration. Noise may be suppressed in the seek operation.

Recording disk apparatus

A flexlead circuit assembly is provided for use in a rotary disk storage system and is designed so that the inherent bias force exerted by the flexible circuit on the actuator arm of the disk storage system is negated. The flexlead circuit herein is split into two sets of flexlead conductors: one to supply power and ground to the actuator VCM and other to transmit signals to and from the read/write heads. The end of each of these flexlead conductors opposite to the end mounted to the actuator arm is integrally formed with and provides signal communication with a printed circuit mounted within the housing. The printed circuit is formed on a substrate which is snap-fit to the lower plate of the disk drive housing to thereby not only support the printed circuit within the housing, but also to provide mechanical support for the flexlead circuit.

Flexible circuit assembly for disk storage system

A magnetic disc device of half-height type comprising: a base; four magnetic discs disposed one above the other on the base; five head arms rotatable about a pivot for seeking motion on both surfaces of each magnetic disc; eight magnetic heads each attached to an end of the head arm through springs facing a surface of each disc; a rotational drive unit for swinging the head arms; a main printed circuit board disposed on a rear side of the base; and, a cover which covers an upper surface of the base.

Magnetic disc device having a lead wire retaining groove in the actuator

Half-height magnetic disk device having a lead wire retaining groove in

A magnetic disc device of half-height type has a base, four magnetic discs disposed one above the other on the base, five head arms rotatable about a pivot for seeking motion on both surfaces of each magnetic disc, eight magnetic heads each attached to an end of the head arm through springs facing a surface of each disc, a rotational drive unit for swinging the head arms, a main printed circuit board disposed on a rear side of the base, and a cover which covers an upper surface of the base.

Growing community of inventors

Kawasaki, Japan

Shoji Samma