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Physik: Magnetische Funktionsmaterialien
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List of Patents

32. THREE-DIMENSIONAL MAGNETIC MEMORY WITH MULTI-LAYER DATA STORAGE LAYERS

Hellwig; Olav, Terris; Bruce D., Thiele; Jan-Ulrich

Patent No: US 10,014,045 B2

Date: 07/03/2018

31. HEAT ASSISTED MAGNETIC RECORDING (HAMR) MEDIA HAVING A HIGHLY ORDERED CRYSTALLINE STRUCTURE

Hellwig; Olav, Jain; Shikha, Mosendz; Oleksandr, Richter; Hans J., Weller; Dieter K.

Patent No: US 9,558,777

Date: 01/31/2017

30. PERPENDICULAR HEAT-ASSISTED MAGNETIC RECORDING (HAMR) MEDIUM WITH A PEROVSKITE OXIDE INTERMEDIATE LAYER

Grobis; Michael Konrad, Hellwig; Olav, Bruce David Terris and Sung Hun Wee

Patent No: US 9,530,445

Date: 12/27/2016

29. ANNEALING TREATMENT FOR ION-IMPLANTED PATTERNED MEDIA

Hellwig; Olav, Rubin; Kurt A.; Zhu; Qing

Patent No: US 9,384,773

Date: 07/05/2016

28. DUAL SEGREGANT HEAT ASSISTED MAGNETIC RECORDING (HAMR) MEDIA

Hellwig; Olav, Mosendz; Oleksandr, Pisana; Simone, Weller; Dieter K.

Patent No: US 9,324,353

Date: 04/26/2016

27. ALL-OPTICAL MAGNETIC RECORDING SYSTEM USING FeMnPt MEDIA

Hellwig; Olav, Mosendz; Oleksandr, Weller; Dieter K.

Patent No: US 9,280,996

Date: 03/08/2016

26. METHOD FOR IMPROVING A PATTERNED PERPENDICULAR MAGNETIC RECORDING DISK WITH ANNEALING

Grobis; Michael Konrad, Hellwig; Olav, Marinero; Ernesto E., McCallum; Andrew Thomas, Weller; Dieter K.

Patent No: US 9,147,423

Date: 09/29/2015

25. METHOD OF MANUFACTURING A BIT PATTERNED MEDIA ON A MAGNETIC MEDIA DISK

Albrecht; Thomas Robert and Hellwig; Olav

Patent No: US 9,058,832

Date: 06/16/2015

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

Hauet; Thomas, Hellwig; Olav, Takano; Kentaro 

Patent No: US 8,748,018 B2

Date: 06/10/2014

23. Fabricating magnetic recording media on patterned seed layers

Dobisz; Elizabeth, Margulies; David, Hellwig; Olav, Wu; Xiao Z.

Patent No: US 8,546,001 B2

Date: 10/01/2013

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

Hellwig; Olav, Kercher; Dan Saylor, Marinero; Ernesto E., Schabes; Manfred Ernst, Weller; Dieter K., Zeltzer; Gabriel

Patent No: US 8,541,116 B2

Date: 09/24/2013

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

Hellwig; Olav, Weller; Dieter K.

Patent No: US 8,492,010 B2

Date: 07/23/2013

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

Hellwig; Olav, Lille; Jeffrey S., McCallum; Andrew Thomas, Mosendz; Oleksandr, Weller; Dieter K.

Patent No: US 8,399,051 B2

Date: 03/19/2013

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

Hellwig; Olav, Marinero; Ernesto E., Weller; Dieter K.

Patent No: US 8,268,461 B2

Date: 09/18/2012

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

Albrecht; Thomas R, Bandic; Zvonimir Z., Hellwig; Olav, Zeltzer; Gabriel

Patent No: US 8,252,153 B2

Date: 08/28/2012

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

Hauet; Thomas, Hellwig; Olav, Schabes; Manfred Ernst

Patent No: US 8,163,405 B2

Date: 04/24/2012

16. SYSTEM, METHOD AND APPARATUS FOR PATTERNED MEDIA WITH REDUCED MAGNETIC TRENCH MATERIAL

Albrecht; Thomas Robert, Hellwig; Olav

Patent No: US 8,130,468 B2

Date: 03/06/2012

15. SYSTEM, METHOD AND APPARATUS FOR STRAIN-ASSISTED MAGNETIC RECORDING FOR CONTROLLING SWITCHING FIELD AND TIGHTENING SWITCHING FIELD DISTRIBUTION IN BIT PATTERNED MEDIA

Hauet, Thomas; Hellwig, Olav; Huang, Lidu

Patent No: US 8,129,043 B2

Date: 03/06/2012

14. Joint Design of Thermally-Assisted Magnetic Recording Head and Patterned Media for High Optical Efficiency

Hellwig; Olav, Stipe; Barry C.

Patent No: US 8,031,561 B2

Date: 10/04/2011

13. PATTERNED PERPENDICULAR MAGNETIC RECORDING MEDIUM WITH EXCHANGE COUPLED RECORDING LAYER STRUCTURE AND MAGNETIC RECORDING SYSTEM USING THE MEDIUM

Berger; Andreas Klaus, Fullerton; Eric E., Hellwig; Olav, Lengsfield, III; Byron Hassberg, Marinero; Ernesto E.

Patent No: US 8,021,769 B2

Date: 09/20/2011

12. PATTERNED-MEDIA PERPENDICULAR MAGNETIC RECORDING DISK WITH SERVO REGIONS HAVING MAGNETIZED SERVO PILLARS AND OPPOSITELY-MAGNETIZED SERVO TRENCHES

Albrecht, Thomas R; Bandic, Zvonimir Z.; Hellwig, Olav; Zeltzer, Gabriel

Patent No: US 7,960,044 B2

Date: 06/14/2011

11. PERPENDICULAR MAGNETIC RECORDING MEDIUM AND SYSTEM WITH LOW-CURIE-TEMPERATURE MULTILAYER FOR HEAT-ASSISTED WRITING AND/OR READING

Hellwig; Olav, Terris; Bruce D., Thiele; Jan-Ulrich

Patent No: US 7,862,912 B2

Date: 04/01/2011

10. PERPENDICULAR MAGNETIC RECORDING DISK DRIVE WITH PATTERNED DISK HAVING CAPPING LAYER FOR SUPPRESSION OF SURFACE DIFFUSION OF TRENCH MATERIAL

Fullerton; Eric E., Hellwig; Olav

Patent No: US 7,846,565 B2

Date: 12/07/2010

9. FABRICATING MAGNETIC RECORDING MEDIA ON PATTERNED SEED LAYERS

Dobisz; Elizabeth, Margulies; David, Hellwig; Olav, Wu; Xiao Z.

Patent No: US 7,776,388 B2

Date: 08/17/2010

8. PERPENDICULAR MAGNETIC RECORDING SYSTEM WITH PATTERNED MEDIUM AND MANUFACTURING PROCESS FOR THE MEDIUM

Eric E. Fullerton, Olav Hellwig, Jeffrey S. Lille, James Terrance Olson, Petrus Antonius VanDerHeijden and Henry Hung Yang

Patent No:  US 7,732,071 B2

Date: 06/08/2010

7. PERPENDICULAR MAGNETIC RECORDING MEDIUM WITH PATTERNED MAGNETIC ISLANDS AND NONMAGNETIC TRENCHES AND MANUFACTURING METHOD FOR SUPPRESSING SURFACE DIFFUSION OF TRENCH MATERIAL

Eric E. Fullerton, Olav Hellwig

Patent No: US 7,670,696 B2

Date: 03/02/2010

6. LAMINTED MAGNETIC THIN FILMS WITH WEAK ANTIFERROMAGNETIC COUPLING FOR PERPENDICULAR MAGNETIC RECORDING

Eric E. Fullerton, Olav Hellwig, Byron H. Lengsfield, David T. Margulies

Patent No: US 7,529,065 B2

Date: 05/05/2009

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

Andreas. K. Berger, Eric. E. Fullerton and Olav Hellwig

Patent No: US 7,514,162 B2

Date: 04/07/2009

4. PATTERNED MULTILEVEL PERPENDICULAR MAGNETIC RECORDING MEDIA

Manfred Albrecht, Olav Hellwig, Guohan Hu, Bruce D. Terris

Patent No: US 6,947,235 B2

Date: 09/20/2005

3. MAGNETIC RECORDING SYSTEM WITH PATTERNED MULTILEVEL PERPENDICULAR MAGNETIC RECORDING 

Manfred Albrecht, Olav Hellwig, Guohan Hu, Bruce D. Terris

Patent No: US 6,906,879 B1

Date: 06/14/2005

2. METHOD FOR MAGNETIC RECORDING ON PATTERNED MULTILEVEL PERPENDICULAR MEDIA USING VARIABLE WRITE CURRENT

Manfred Albrecht, Olav Hellwig, Guohan Hu, Bruce D. Terris

Patent No: US 6,882,488 B1

Date: 04/19/2005

1. METHOD FOR MAGNETIC RECORDING ON PATTERNED MULTILEVEL PERPENDICULAR MEDIA USING THERMAL ASSISTANCE AND FIXED WRITE CURRENT

Manfred Albrecht, Olav Hellwig, Guohan Hu, Bruce D. Terris

Patent No: US 6,865,044 B1

Date: 03/08/2005

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