Inventor

NAGASAKA KEIICHI

JP39 patents

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

NAGASAKA KEIICHI

FUJITSU LTD

CPP GMR free layer having ferromagnetic layers with parallel magnetization separated by non-magnetic layer

Spin valve magnetoresistive sensor having CPP structure

Current perpendicular-to-the-plane structure spin valve magnetoresistive head

Magnetoresistive effect having multiple base layers between an electrode and an antiferromagnetic layer, magnetic head, and magnetic recording device

Magnetoresistive element

GMR head, method for its manufacture, and magnetic disc drive utilizing the head

Magnetoresistive element having current-perpendicular-to-the-plane structure and having improved magnetic domain control

Spin-valve magnetic head with the pinned layer having different directions for its magnetization axis and its easy axis

CPP magnetoresistive effect element and magnetic storage device having a CPP magnetoresistive effect element

Magnetic sensor, magnetic head and magnetic recording apparatus

Spin-valve magnetoresistive device having a layer for canceling a leakage magnetic field

Spin-valve magnetic head with the pinned layer having different directions for its magnetization axis and its easy axis

Spin-valve magnetic head with the pinned layer having different directions for its magnetization axis and its easy axis

Magnetoresistive sensor

Magnetoresistive element and method of manufacturing the same

Magnetoresistive element having current-perpendicular-to-plane structure, magnetic head, and magnetic memory apparatus thereof

HGST Netherlands BV

High spin-torque efficiency spin-torque oscillator (STO) with dual spin polarization layer

Low Bs spin-polarizer for spin torque oscillator

Low magnetic flux density interface layer for spin torque oscillator

Stabilizing layer for a spin torque oscillator (STO)

MAMR head with a multi-layered side gap for stable oscillation of the STO

Spin-torque oscillator for microwave assisted magnetic recording

Texture-control layer for spin torque oscillator

Spin torque oscillator with low magnetic moment and high perpendicular magnetic anisotropy material

Negative-polarization spin-torque-oscillator

AF-mode STO with negative Hk spin polarization layer

Magnetic head having a spin torque oscillator (STO) with a hybrid heusler field generation layer (FGL)

Microwave assisted magnetic recording head having spin torque oscillator frequency detection

Spin torque oscillator with high spin torque efficiency and reliability

Extended spin torque oscillator

WESTERN DIGITAL TECH INC

Low magnetic flux density interface layer for spin torque oscillator

Texture-control layer for spin torque oscillator

IGARASHI MASUKAZU

Magnetic recording apparatus with magnetic recording head capable of recording information on a magnetic recording medium

Spin-torque oscillator (STO) for microwave-assisted magnetic recording (MAMR) and methods of use thereof

HITACHI LTD

Spin torque oscillator and magnetic recording head and magnetic recording device mounted with the spin torque oscillator

NAGASAKA KEIICHI

Magnetic recording head and magnetic recording/reproducing apparatus

MATSUBARA MASATO

Spin-torque oscillator for microwave assisted magnetic recording

UNIV ALABAMA

CPP spin-valve element

MORINAGA AKIRA

Hard disk drive with write assist based on detected conditions