Magnetic recording head with spin oscillation device and magnetic recording apparatus including the magnetic recording head

M Takagishi, K Yamada, H Iwasaki, J Akiyama… - US Patent …, 2012 - Google Patents
(57) ABSTRACT A magnetic recording head includes a recording magnetic pole, and a spin
oscillation device including a first magnetic layer having at least one magnetic material …

Magnetic recording head with protruding spin torque oscillator

K Yamada, H Iwasaki, J Akiyama, M Takagishi… - US Patent …, 2012 - Google Patents
(51) Int. Cl.(57) ABSTRACT GIB 5/3(2006.01) A magnetic recording head includes: a main
magnetic pole; a GIB 5/235(2006.01) laminated body; and a pair of electrodes operable to …

Magnetic head with spin oscillation device (s) and magnetic recording device

T Funayama, K Yamada, M Takagishi… - US Patent …, 2012 - Google Patents
It is made possible to provide a magnetic head that generates a sufficient high-frequency
magnetic field for assisting recording operations, and a magnetic recording device that …

Magnetic recording head, magnetic head assembly, magnetic recording apparatus, and magnetic recording method

K Yamada, H Iwasaki, M Takagishi - US Patent 8,767,346, 2014 - Google Patents
US8767346B2 - Magnetic recording head, magnetic head assembly, magnetic recording
apparatus, and magnetic recording method - Google Patents US8767346B2 - Magnetic …

Magnetic head and magnetic recording device

M Shimizu, H Iwasaki, K Yamada… - US Patent App. 12 …, 2009 - Google Patents
It is made possible to restrict the variation of the oscillation frequency of a spin torque
oscillator placed in the vicinity of the recording magnetic pole. A magnetic head includes: a …

Magnetic head assembly and magnetic recording/reproducing apparatus

H Iwasaki, K Yamada, M Takagishi… - US Patent …, 2012 - Google Patents
It is made possible to reduce the write magnetic field generated from the main magnetic pole
toward the spin torque oscillator, so as to reduce the variation in the oscillation …

Magnetic recording head

J Akiyama, K Yamada, M Takagishi… - US Patent 8,264,799, 2012 - Google Patents
A magnetic device includes a first magnetic layer having at least one magnetic material
layer, a second magnetic layer having at least one magnetic material layer, a first nonmag …

Magnetic recording head and magnetic recording device

M Takashita, H Iwasaki, K Yamada, J Akiyama… - US Patent …, 2012 - Google Patents
It is made possible to provide a magnetic head that can stabilize the high-frequency
magnetic field generated from the spin torque oscillator. A magnetic head includes: first and …

Spin torque oscillator sensor

PM Braganca, BA Gurney, BA Wilson - US Patent 8,259,409, 2012 - Google Patents
A spin torque oscillation magnetoresistive sensor for measuring a magnetic field. The sensor
uses a change in precessional oscillation frequency of a magnetization of a magnetic layer …

Spin torque oscillator, magnetic recording head, magnetic head assembly and magnetic recording apparatus

K Koui, M Shimizu, K Yamada - US Patent 8,325,442, 2012 - Google Patents
Int. Cl. A spin torque oscillator includes a first magnetic layer, a GIB 5/33(2006.01) Second
magnetic layer and a first nonmagnetic layer. The first (52) US Cl …