Abstract: The present invention provides an air baffle device for reducing disk vibration of a disk drive, where the air baffle device comprises a plurality of metal plates, and a fastening means for assembling the plurality of metal plates into a multi-layered structure. In another aspect of the present invention, there is provided an air baffle device for reducing disk vibration of a disk drive, where the air baffle device comprises a plurality of metal plates, a plurality of spacers, and a fastening means for assembling the plurality of metal plates and spacers into a multi-layered structure.

Abstract: The present invention provides unamount head/arm subassemblies and read-write head stack assembly for a disk drive, and a servowriter having the head stack assembly. Each head/arm subassembly is assembled and aligned individually so that multiple head/arm subassemblies can be installed on a mounting block to build the head stack assembly with all heads being properly aligned. In addition, each head/arm subassembly can be disassembled independently, facilitating easy rework on individual defect head.

Abstract: The present invention provides a centering assembly for centering a plurality of disks being assembled onto a spindle hub, and further provides a spindle hub being capable of centering disks being assembled.

Abstract: The present invention provides a disk stack assembly for processing a plurality of disks in a servowriter. The present invention further provides a servowriter system for processing multiple disks.

Abstract: The present invention provides a system for assembling a disk-stack with multiple disks and spacers and transferring the assembled disk-stack, a media servowriter that comprises a fixed hub for receiving the assembled disk-stack, and a method that comprises assembling a disk-stack with multiple disks and spacers off-line and transferring the assembled disk-stack to the fixed hub of the media servowriter.

Abstract: The present invention provides an air baffle device for reducing disk vibration of a disk drive, where the air baffle device comprises a plurality of metal plates, and a fastening means for assembling the plurality of metal plates into a multi-layered structure. In another aspect of the present invention, there is provided an air baffle device for reducing disk vibration of a disk drive, where the air baffle device comprises a plurality of metal plates, a plurality of spacers, and a fastening means for assembling the plurality of metal plates and spacers into a multi-layered structure.

Abstract: The present invention provides unamount head/arm subassemblies and read-write head stack assembly for a disk drive, and a servowriter having the head stack assembly. Each head/arm subassembly is assembled and aligned individually so that multiple head/arm subassemblies can be installed on a mounting block to build the head stack assembly with all heads being properly aligned.

Abstract: A method and apparatus for creating ablation-free visible markings on a multi-layer hard disk magnetic storage media by laser-induced deformation while maintaining the integrity of the protective carbon layer, and without destroying the multi-layered structure of the media. The apparatus includes a laser generator, a rotatable optical plate and a beamsplitter by which the fluence of the beam can be controlled without altering the power setting to the laser generator, a beam sampler for determining the fluence of the beam, and an optical plate which acts with the beamsplitter to eliminate unwanted reflection of the laser beam. The laser beam is steered by a beamsteerer to a hard disk held in a material handling unit. This technique is highly suitable for marking or labeling finished hard disks for the purposes of identification and traceability, without creating any short-term or long-term contamination problems. The corresponding storage media so marked are also claimed.

Abstract: A method and apparatus for creating ablation-free visible markings on a multi-layer hard disk magnetic storage media by laser-induced deformation while maintaining the integrity of the protective carbon layer, and without destroying the multi-layered structure of the media. The apparatus includes a laser generator, a rotatable optical plate and a beamsplitter by which the fluence of the beam can be controlled without altering the power setting to the laser generator, a beam sampler for determining the fluence of the beam, and an optical plate which acts with the beamsplitter to eliminate unwanted reflection of the laser beam. The laser beam is steered by a beamsteerer to a hard disk held in a material handling unit. This technique is highly suitable for marking or labeling finished hard disks for the purposes of identification and traceability, without creating any short-term or long-term contamination problems. The corresponding storage media so marked are also claimed.