Reflective nodes on a turntable platter periphery redirect light sources to create a continuous visual display around the outer edge.
Segmenting the magnetic head from encryption circuits prevents skimming attacks while reducing device size and manufacturing cost.
Metal cover and base connect via conductive portions to form loop antennas that reflect external electromagnetic waves.
An aluminum alloy base plate with controlled second phase particles absorbs vibration energy to prevent magnetic disk deformation and helium leakage.
A movable supply chamber evacuates and fills disc drive cavities with low-density gas to maintain a stable internal atmosphere.
A disk device top cover features a curved portion extending radially outward to shield the recording surface from external shocks.
Piercing the seal eliminates repeated gas filling and attachment operations, reducing manufacturing complexity while maintaining leak inspection reliability.
Segmented regulating members with inclined low-friction surfaces absorb disk bending energy, preventing debris generation from thin media impact.
A clamping device balance hole confines a counterweight to stabilize rotational motion and reduce mechanical oscillations in hard disk drives.
An amorphous glass spacer with Rz ≥ 1.5 μm edges prevents particle generation and removal failures in hard disk drives.
A dedicated latch post supports the cover, preventing binding and maintaining latch functionality under shock.
Ultrasonic welding creates metal-to-metal bonds in hard disc drives, preventing moisture leakage where gaskets fail.
Epoxy adhesive seals hard disk drive covers via capillary action, replacing costly laser welding to reduce manufacturing expenses.
Resin impregnation seals casting cavities in HDD base members, preventing helium leakage and ensuring label adhesion.
A thin-film flexible printed circuit board extends through a casing opening to provide reliable electrical connections.
Switching a 1.2 volt regulator to linear mode reduces power consumption below 500 μA while minimizing latency for host device communications.
Multiple contact protrusions on a hard disk drive spindle motor hub flange distribute clamping load to inhibit coning deformation of stacked disks.
Replacing photoelectric encoders with a stepper motor eliminates hardware complexity while allowing dynamic adjustment of bit density across multiple tracks.
Stacked cover seals reduce sidewall thickness, enabling larger disk diameters within standard form factors while maintaining hermetic integrity.
Laminated feed-through structure with high aspect ratio diffusion channel inhibits gas leakage while maintaining electrical connectivity.
An adhesive joint with inorganic filler seals the feedthrough flange, preventing helium leakage from thermal expansion stress.
A magnetic memory cell uses a radio-frequency interconnection to generate an oscillating field for magnetization reversal.
Wrought aluminum alloys reduce porosity and hot cracking to achieve hermetic seals with controlled weld depth.
A filter unit with a shielding portion intercepts grease mist from overlapping actuator bearings, preventing head crashes on magnetic disks.
Solid-state metallic deposition on cast substrates improves weld uniformity and seals interiors against humidity.
An extended center stiffener plate isolates coupled Position Error Signals and reduces low-frequency peaks to improve I/O performance.
Segmented environmental control modules reduce helium leakage and head stack motion by combining permeable barriers with sealed desiccant sections.
Segmented base-deck sections increase data storage capacity while maintaining stiffness against shock and vibration.
Segmented desiccant layers control water vapor permeability to prevent excessive emission while activated carbon absorbs organic contaminants.
Blu-ray disc pairing synchronizes playback positions across devices, resolving synchronization accuracy deterioration during cross-platform transitions.
Impregnant seals minute cavities in hard disk drive base plates to ensure airtight housing integrity.
An elastically deformable clamper plate adjusts axial displacement to accommodate varying disk thicknesses.
An engraved information mark on a disk drive base body enables early detection of casting defects, improving helium seal yield.
A fluororubber composition uses PTFE filler to increase crosslinked hardness while maintaining roll kneading workability.
A spindle motor through hole uses segmented column bodies to guide sealing material filling.
A motor driver device manages transition between window and windowless driving methods using differential phase detection.
A PEEK disk hub reduces surface damage and improves film thickness measurement consistency.
A disk drive base plate design uses electrodeposition coating to seal machined surfaces and enhance structural integrity.
Segmented disk packs with independent motors resolve latency bottlenecks while maintaining standard form factors.
Monoamine-endcapped polyimide resins replace standard end caps to achieve ultra-low releasable phosphorous and volatile organic compound residuals.
A stepped lower surface guides molten metal flow into blind holes, suppressing cavity formation and enhancing stiffness.
Switch circuits multiplex capacitive sensor regions to shared drive circuits, reducing erroneous detections from movable structures.
A plastic HDD base uses embedded metal ribs to secure anchor formations and maintain component alignment.
Non-uniform magnetic disk thickness increases data capacity while maintaining impact resistance against deformation.
Integrated patterned ground structure filters suppress common-mode interference through resonant cancellation.
Split ring with radial projections applies inclined forces to mount thin actuator arms, resolving insufficient engagement caused by reduced thickness.
Irreversible adsorbing materials capture oxygen and siloxane contaminants, preventing head crashes caused by conventional activated carbon failure.
Higher rigidity outer disks and distinct spacer thermal expansion coefficients reduce vibration and eccentricity during shock events.
Thermal bonding joins flexible circuits to metal parts, reducing helium leakage in sealed drives.
A control board closes a housing hole in a disk device to mount electronic components and enable wireless communication.