Inventor
Olav Hellwig
Inventor
San Jose, CA, US
Overview
Patents· 34 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer49%
B82YSpecific uses or applications of nanostructures17%
Y10TTechnical subjects covered by former us classification9%
C23CCoating metallic material6%
G11CStatic stores5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
H01LSemiconductor devices3%
H10BElectronic memory devices3%
C22CAlloys2%
H03MCoding2%
PatentTitleYear
10,347,281Structures and methods for templated growth of high areal density heat assisted magnetic recording media201910,014,045Three-dimensional magnetic memory with multi-layer data storage layers20189,558,777'Heat assisted magnetic recording (HAMR) media having a highly ordered crystalline structure'20179,530,445'Perpendicular heat-assisted magnetic recording (HAMR) medium with a perovskite oxide intermediate layer'20169,384,773'Annealing treatment for ion-implanted patterned media'20169,324,353'Dual segregant heat assisted magnetic recording (HAMR) media'20169,280,996'All-optical magnetic recording system using FeMnPt media'20169,147,423'Method for improving a patterned perpendicular magnetic recording disk with annealing'20159,058,832'Method of manufacturing a bit patterned media on a magnetic media disk'20158,911,888'Three-dimensional magnetic memory with multi-layer data storage layers'20148,748,018'Patterned perpendicular magnetic recording medium with data islands having a flux channeling layer below the recording layer'20148,546,001'Fabricating magnetic recording media on patterned seed layers'20138,541,116'Patterned perpendicular magnetic recording disk drive and medium with patterned exchange bridge layer below the data islands'20138,492,010'Silicon/gold seed structure for crystalline alignment in a film stack'20138,399,051'Method for making a patterned perpendicular magnetic recording disk having a FePt or CoPt chemically ordered recording layer'20138,268,461'Patterned perpendicular magnetic recording medium with ultrathin oxide film and reduced switching field distribution'20128,252,153'Patterned-media perpendicular magnetic recording disk with servo regions having magnetized servo pillars and oppositely-magnetized servo trenches'20128,163,405'System, method and apparatus for multiple anisotropy layered magnetic structures for controlling reversal mechanism and tightening of switching field distribution in bit patterned media'20128,129,043'System, method and apparatus for strain-assisted magnetic recording for controlling switching field and tightening switching field distribution in bit patterned media'20128,130,468'System and apparatus for patterned media with reduced magnetic trench material'20128,031,561'Joint design of thermally-assisted magnetic recording head and patterned media for high optical efficiency'20118,021,769'Patterned perpendicular magnetic recording medium with exchange coupled recording layer structure and magnetic recording system using the medium'20117,960,044'Patterned-media perpendicular magnetic recording disk with servo regions having magnetized servo pillars and oppositely-magnetized servo trenches'20117,862,912'Perpendicular magnetic recording medium and system with low-curie-temperature multilayer for heat-assisted writing and/or reading'20117,846,565'Perpendicular magnetic recording disk drive with patterned disk having capping layer for suppression of surface diffusion of trench material'20107,776,388'Fabricating magnetic recording media on patterned seed layers'20107,732,071'Perpendicular magnetic recording system with patterned medium and manufacturing process for the medium'20107,670,696'Perpendicular magnetic recording medium with patterned magnetic islands and nonmagnetic trenches and manufacturing method for suppressing surface diffusion of trench material'20107,529,065'Laminated magnetic thin films with weak antiferromagnetic coupling for perpendicular magnetic recording'20097,514,162'Perpendicular magnetic recording medium with metamagnetic antiferromagnetically-coupled layer between the soft underlayer and recording layer'20096,947,235'Patterned multilevel perpendicular magnetic recording media'20056,906,879'Magnetic recording system with patterned multilevel perpendicular magnetic recording'20056,882,488'Method for magnetic recording on patterned multilevel perpendicular media using variable write current'20056,865,044'Method for magnetic recording on patterned multilevel perpendicular media using thermal assistance and fixed write current'2005Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2005–2012Patents assigned to HITACHI GLOBAL STORAGE TECH (11)· patent assignee history
2005–2009Based in Berlin, DE· patent location history
2009–2019Based in San Jose, CA, US· patent location history
2011–2012Patents assigned to HITACHI GLOBAL STORAGE TECH NL (8)· patent assignee history
2012–2015Patents assigned to HELLWIG OLAV (13)· patent assignee history
2012–2015Patents assigned to WELLER DIETER K (5)· patent assignee history
2013–2019Patents assigned to HGST Netherlands BV (14)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HGST Netherlands BV | 14 | 2013–2019 |
| HELLWIG OLAVself | 13 | 2012–2015 |
| HITACHI GLOBAL STORAGE TECH | 11 | 2005–2012 |
| HITACHI GLOBAL STORAGE TECH NL | 8 | 2011–2012 |
| WELLER DIETER K | 5 | 2012–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| San Jose, California, US | 29 | 2009–2019 |
| Berlin, DE | 5 | 2005–2009 |