Inventor

HELLWIG OLAV

US34 patents

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

HELLWIG OLAV

HITACHI GLOBAL STORAGE TECH

Patterned multilevel perpendicular magnetic recording media

Perpendicular magnetic recording medium with patterned magnetic islands and nonmagnetic trenches and manufacturing method for suppressing surface diffusion of trench material

Magnetic recording system with patterned multilevel perpendicular magnetic recording

Method for magnetic recording on patterned multilevel perpendicular media using variable write current

Method for magnetic recording on patterned multilevel perpendicular media using thermal assistance and fixed write current

Perpendicular magnetic recording disk drive with patterned disk having capping layer for suppression of surface diffusion of trench material

Perpendicular magnetic recording system with patterned medium and manufacturing process for the medium

Fabricating magnetic recording media on patterned seed layers

Perpendicular magnetic recording medium with metamagnetic antiferromagnetically-coupled layer between the soft underlayer and recording layer

Laminated magnetic thin films with weak antiferromagnetic coupling for perpendicular magnetic recording

HGST Netherlands BV

Perpendicular heat-assisted magnetic recording (HAMR) medium with a perovskite oxide intermediate layer

Dual segregant heat assisted magnetic recording (HAMR) media

Heat assisted magnetic recording (HAMR) media having a highly ordered crystalline structure

All-optical magnetic recording system using FeMnPt media

Structures and methods for templated growth of high areal density heat assisted magnetic recording media

Annealing treatment for ion-implanted patterned media

HELLWIG OLAV

Patterned perpendicular magnetic recording medium with ultrathin oxide film and reduced switching field distribution

Method for making a patterned perpendicular magnetic recording disk having a FePt or CoPt chemically ordered recording layer

Silicon/gold seed structure for crystalline alignment in a film stack

Patterned perpendicular magnetic recording disk drive and medium with patterned exchange bridge layer below the data islands

Three-dimensional magnetic memory with multi-layer data storage layers

HITACHI GLOBAL STORAGE TECH NL

Joint design of thermally-assisted magnetic recording head and patterned media for high optical efficiency

Perpendicular magnetic recording medium and system with low-curie-temperature multilayer for heat-assisted writing and/or reading

Patterned perpendicular magnetic recording medium with exchange coupled recording layer structure and magnetic recording system using the medium

Patterned-media perpendicular magnetic recording disk with servo regions having magnetized servo pillars and oppositely-magnetized servo trenches

HAUET THOMAS

System, method and apparatus for multiple anisotropy layered magnetic structures for controlling reversal mechanism and tightening of switching field distribution in bit patterned media

System, method and apparatus for strain-assisted magnetic recording for controlling switching field and tightening switching field distribution in bit patterned media

Patterned perpendicular magnetic recording medium with data islands having a flux channeling layer below the recording layer

ALBRECHT THOMAS ROBERT

System and apparatus for patterned media with reduced magnetic trench material

Method of manufacturing a bit patterned media on a magnetic media disk

ALBRECHT THOMAS R

Patterned-media perpendicular magnetic recording disk with servo regions having magnetized servo pillars and oppositely-magnetized servo trenches

WESTERN DIGITAL TECH INC

Three-dimensional magnetic memory with multi-layer data storage layers

DOBISZ ELIZABETH

Fabricating magnetic recording media on patterned seed layers

GROBIS MICHAEL KONRAD

Method for improving a patterned perpendicular magnetic recording disk with annealing