Magnetic recording sensor with AFM exchange coupled shield stabilization

Y Guo, R Xiao, Y Zheng - US Patent 8,797,692, 2014 - Google Patents
5,621,592 A 4, 1997 G11 et al. 5,750,275 A 5, 1998 Katz et al. 5,804,250 A 9/1998 Yang
5,838,521 A 1 1/1998 Ravipati 6,033,491 A 3, 2000 Lin 6,087.027 A 7/2000 Hoshiya et al …

Method and system for providing a read transducer having an improved composite magnetic shield

R Xiao - US Patent 8,780,505, 2014 - Google Patents
A method and system provide a magnetic transducer including a first shield, a read sensor,
and a second shield. The read sensor is between the first shield and the second shield. The …

Magnetic recording sensor with sputtered antiferromagnetic coupling trilayer between plated ferromagnetic shields

F Liu, D Han, M Sun, Y Guo - US Patent 8,760,819, 2014 - Google Patents
A magnetic recording sensor for use in a data storage device is described. The sensor has a
magnetoresistive sensing element and magnetic shields shielding the magnetoresistive …

Method and system for providing an antiferromagnetically coupled writer

M Sun, D Han, JA Medina, M Jiang, Y Hong… - US Patent …, 2013 - Google Patents
(57) ABSTRACT A method and system for fabricating a magnetic transducer are described.
The magnetic transducer includes a pole and a nonmagnetic intermediate layer adjacent to …

High thermal stability reference structure with out-of-plane aniotropy to magnetic device applications

YJ Wang, W Kula, RY Tong, G Jan - US Patent 8,871,365, 2014 - Google Patents
Abstract Enhanced Hc and Hk in addition to higher thermal stability to 400 C. are achieved
in magnetic devices by adding dusting layers on top and bottom surfaces of a spacer in a …

Perpendicular magnetic recording medium with single domain exchange-coupled soft magnetic underlayer and device incorporating same

HS Jung, EM Velu, SS Malhotra, JT Jung… - US Patent …, 2013 - Google Patents
(57) ABSTRACT A perpendicular magnetic recording disk having a single domain exchange-
coupled laminated Soft magnetic under layer (SUL) is disclosed. The SUL is a combination …

Antiferromagnetically coupled magnetic recording medium with dual-layered upper magnetic layer

H Tomiyasu, K Moroishi, T Umezawa… - US Patent …, 2004 - Google Patents
In a magnetic recording medium which includes a base body (1-4), first and second
magnetic layers (5 and 7), each being of a ferromagnetic material, and a spacer layer (6) …

Perpendicular magnetic recording medium with magnetically resetable single domain soft magnetic underlayer

HS Jung, M Avenell - US Patent App. 11/031,613, 2006 - Google Patents
A perpendicular magnetic recording disk with a magnetically resetable single domain soft
magnetic underlayer. The perpendicular magnetic recording disk may include a hard …

Radial magnetic field reset system for producing single domain soft magnetic underlayer on perpendicular magnetic recording medium

HS Jung - US Patent 7,910,159, 2011 - Google Patents
A radial magnetic field reset apparatus including a housing having a cavity with a soft
magnet rod disposed at its center and a permanent magnet disposed around the cavity. The …

Magnetic recording medium, method of manufacturing the same, and magnetic recording apparatus

R Inamura, I Kaitsu - US Patent App. 11/476,002, 2007 - Google Patents
According to the present invention, provided is a magnetic recording medium 11 comprising:
a non-magnetism base member 1; a lower soft magnetic underlying layer 2 formed on the …