Inventor

WOOD ROGER WILLIAM

US18 patents

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

WOOD ROGER WILLIAM

HGST Netherlands BV

Disk drive with distributed codeword blocks

Heat assisted magnetic recording system having at least three possible magnetic configurations per physical bit

Magnetic recording disk drive with write position error signal values written in the data tracks for compensation of track misregistration

System and methods utilizing dual read sensors

Scalable repair block error correction for sequential multiple data blocks in a magnetic data storage device

Heat-assisted magnetic recording (HAMR) disk drive with disk having multiple continuous magnetic recording layers

System and method for testing data storage systems utilizing micro-transitions

HITACHI GLOBAL STORAGE TECH

Flux shunt structure for reducing return pole corner fields in a perpendicular magnetic recording head

Perpendicular magnetic write head having a studded trailing shield compatible with read/write offset

Method and apparatus for servowriting using a unipolar write current

IBM

Dual coil rotary actuator

Method and apparatus for reducing track misregistration due to digital-to-analog converter quantization noise

WESTERN DIGITAL TECH INC

Implementing enhanced track following during read back using head asymmetry metrics in hard disk drives

Non-binary decoding using tensor product transforms

COKER JONATHAN DARREL

Shingled magnetic recording (SMR) disk drive with verification of written data

BROCKIE RICHARD MICHAEL

Implementing track following using data characteristics for positional information

WOOD ROGER WILLIAM

Correcting errors in position of an HDD write-head

HITACHI GLOBAL STORAGE TECH NL

Using readback signals to estimate radial location on a rotating storage device