Inventor

SEAGLE DAVID J

US63 patents

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

SEAGLE DAVID J

WESTERN DIGITAL TECH INC

Tape head design having a null shield for same gap verify

Data storage device using laterally offset read element to compensate for tape stretch

Recessed tape servo head to create an equipotential tape bearing surface

Independent shunting of data and servo heads to allow a single sensor deposition on tape wafers

Tape heads having shifted array/pad arrangements

3-band magnetic recording tape and tape drive

Independent reader/writer overcoats for an SGV tape head

Tape head design having same gap verify capabilities

Magnetic recording head having same-gap read-after-write

Electrostrictive control for the width of a tape-head-array

Electrostrictive control for the width of a tape-head-array

HDD head having same gap verify and system for using same

Offset edge of servo heads relative to data heads for signal-to-noise ratio optimization in a tape head module

WESTERN DIGITAL FREMONT INC

Magnetoresistive read sensor with reduced effective shield-to-shield spacing

Inductive writer with flat top pole and pedestal defined zero throat

Write head architecture for improved manufacturability

Transducers for perpendicular recording with inductive cancellation at MR sensor

Highly conductive lead adjoining MR stripe and extending beyond stripe height at junction

Pole tip with sides flared at media-facing surface

Stitched pole write element with a T-shaped pole tip portion

Method and system for reducing thermal pole tip protrusion

Inductive transducer with reduced pole tip protrusion

HGST Netherlands BV

Scissor magnetic read head with wrap-around magnetic shield

Scissor magnetic read sensor with shape enhanced soft magnetic side shield for improved stability

Scissor magnetic read sensor with novel multi-layer bias structure for uniform free layer biasing

Scissor sensor with back edge bias structure and novel dielectric layer

Correcting current crowding in row bar and vias for single pad bonding

Magnetic read sensor with independently extended pinned layer and seed layer

Material for use in a TMR read gap without adversely affecting the TMR effect

Scissor unidirectional biasing with hard bias stabilized soft bias

Magnetic write head having dual parallel capacitors for integrated transmission line compensation

HITACHI GLOBAL STORAGE TECH NL

Test device and method for measurement of tunneling magnetoresistance properties of a manufacturable wafer by the current-in-plane-tunneling technique

Magnetic recording head having an extended stripe height and a shortened shield height

Test-device system for independent characterization of sensor-width and sensor-stripe-height definition processes

Test components fabricated with pseudo sensors used for determining the resistance of an MR sensor

Test components fabricated with large area sensors used for determining the resistance of an MR sensor

IBM

Method and apparatus for removing noise spikes

Lapping process for a single element magnetoresistive head

Lapping process for minimizing shorts and element recession at magnetic head air bearing surface

Method of grinding thin-film magnetic heads using optical grinding markers

WESTERN DIGITAL FREMONT LLC

Magnetic head with thin trailing pedestal layer

Pedestal defined zero throat writer having a recessed pedestal

HITACHI GLOBAL STORAGE TECH

Recording heads having electrical pads on multiple surfaces

Electrical lapping guides made from tunneling magnetoresistive (TMR) material

BROWN DIANE L

Method for manufacturing a magnetic tape head using a TMR sensor

Current perpendicular magnetoresistive sensor with a dummy shield for capacitance balancing

CHEN YINGJIAN

Integrated touch-down pad and touch-down sensor

ARAKI SATORU

Material for use in a TMR read gap without adversely affecting the TMR effect

CHIU ANDREW

Multiple-sense thermo-resistive sensor for contact detection of read-write heads

LE QUANG

Magnetic sensor having hard bias structure for optimized hard bias field and hard bias coercivity