Inventor

KNIGGE BERNHARD E

US53 patents

⚠️ This page may combine multiple inventors who share the name “KNIGGE BERNHARD E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KNIGGE BERNHARD E

HITACHI GLOBAL STORAGE TECH

Electrostatic fly-height control

High resolution patterning of surface energy utilizing high resolution monomolecular resist for fabrication of patterned media masters

Measurement of slider clearance by inducing collision of the slider with disk surface

Head-disk contact detection and work function difference determination

Method and system for pre-contact detection and active damping of air bearing vibrations in a hard disk drive

Enabling intermittent contact recording on-demand

Simultaneous measurement of contact potential and slider body clearance in a magnetic disk drive

Active fly height control using radio frequency feedback

Method of feedback control for active damping of slider air bearing vibrations in a hard disk drive slider

Method of feedback control for active damping of slider air bearing vibrations in a hard disk drive slider

Feedback control mechanism for active damping of slider air bearing vibrations in a hard disk drive slider

Feedback control mechanism for active damping of slider air bearing vibrations in a hard disk drive slider

Measurement of slider body clearance in a magnetic disk drive using positive and negative electrical pulses

Method and system for determining contact potential in a hard disk drive

Method and system for detecting a change in a rotational velocity of a magnetic disk or a spindle coupled to the magnetic disk

Disk drive with localized clearance and contact potential measurement capability

Magnetic performance of a magnetic transducer operating within a hard disk drive

Disk drive head with radially spaced read and write elements on respective protrusion pads

Systems and methods for in-situ recording head burnishing

WESTERN DIGITAL TECH INC

Disk drive employing comb filter for repeatable fly height compensation

Disk drive measuring fly height by applying a bias voltage to an electrically insulated write component of a head

Disk drive detecting head touchdown by applying DC+AC control signal to fly height actuator

Laser mode hop compensation using multi-sector feedback in heat assisted magnetic recording

Disk drive generating feed-forward fly height control based on temperature sensitive fly height sensor

Data storage device calibrating fly height actuator based on read mode touchdown resistance of touchdown sensor

Data storage device detecting minimum stable fly height of a head over a disk

Data storage device with write protection and guaranteed rapid write verification in energy-assisted recording (EAR)

Differential sense of embedded contact sensor (ECS) and near-field temperature sensor (NTS) utilizing chopping amplifier

Pole tip recession compensation by dual heater ratio optimization in a hard disk drive

Alternating-bias signal resistance detection for resistive temperature detectors in disk drives

Alternating-bias signal resistance detection for resistive temperature detectors in disk drives

Adaptive dual heater mode for hard disk drive

Data storage device with mapping and mitigation of laser mode hop effects in heat-assisted magnetic recording (HAMR)

Machine learning supplemented storage device inspections

Smear height detection and measurement in a data storage device

Continuous dual path resistance detection for resistive temperature detectors in disk drives

KNIGGE BERNHARD E

Disk drive adjusting fly height when calibrating head/disk contact

Disk drive detecting positive correlation in fly height measurements

Negative biasing a slider with respect to a disk to reduce slider wear and provide burnish rate control

FRANCA-NETO LUIZ M

Integrated half coil structure for write assist of high coercivity media

Slider fly-height control in a hard disk drive

Signaling method and apparatus for write assist of high coercivity media using integrated half coil

HITACHI GLOBAL STORAGE TECH NL

Proximity recording slider with high air bearing damping in and out of contact

Multivariate head-to-disk contact detection

MALLARY MICHAEL L

Systems and methods for reducing condensation along a slider air bearing surface in energy assisted magnetic recording

CONTRERAS JOHN

Integrating control of slider bias potential, touch-down detection and fly-height determination in a HDD

BAUMGART PETER

Fly-height management in a hard disk drive (HDD)

BANDIC ZVONIMIR Z

Compliant air bearing slider

FELISS NORBERT A

Methods for depositing lubricant onto disks and systems thereof

BAUMGART PETER M

Real time monitoring inconsistent operations in a hard disk drive