Inventor

IGARASHI MASUKAZU

JP45 patents

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

IGARASHI MASUKAZU

HITACHI LTD

Magnetic head, magnetic recording method and apparatus for controlling magnetic head with spin torque oscillator in a disk drive

Magnetic recording medium, process for producing the same and magnetic recording system

Magnetic recording medium

Recording equalizer and magnetic recording/reproducing apparatus performing write timing compensation

Longitudinal magnetic recording media and magnetic storage apparatus using the same

Magnetic recording system and magnetic recording medium used therefor

Atomic switching devices and logical circuits

High frequency magnetic field assisted magnetic recording head

Microwave assisted magnetic recording head and magnetic data storage apparatus

Magnetic head, method for producing the magnetic head, and magnetic recording/reproducing apparatus

Microwave assisted magnetic recording head having spin torque oscillator, and magnetic recording apparatus

Magnetic recording system and magnetic recording medium used therefor

Magnetic recording medium and magnetic storage

Magnetic recording medium and magnetic storage device using the same

Magnetic head and magnetic recording/reproducing apparatus

Recording equalizer and magnetic recording/reproducing apparatus using the equalizer

Magnetic recording system including magnetic recording medium having three-dimensional random orientation of axis of easy magnetization

Recording equalizer and magnetic recording/reproducing apparatus using the equalizer

Magnetic recording medium

Microwave assisted magnetic recording medium and information recording apparatus using the same

Magnetic recording system including magnetic recording medium having three-dimensional random orientation of axis of easy magnetization

Recording equalizer and magnetic recording/reproducing apparatus using the equalizer

Recording equalizer and magnetic recording/reproducing apparatus using the equalizer

Method of manufacturing a magnetic recording media

Magnetic recording media and magnetic storage device

HGST Netherlands BV

Symmetrical STO for oscillation with both polarity bias

Microwave-assisted magnetic recording (MAMR) head employing advanced current control to establish a magnetic resonance state

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

Low Bs spin-polarizer for spin torque oscillator

Stabilizing layer for a spin torque oscillator (STO)

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

Negative-polarization spin-torque-oscillator

Spin torque oscillator with high spin torque efficiency and reliability

Extended spin torque oscillator

Microwave-assisted magnetic recording device and method of formation thereof

IGARASHI MASUKAZU

Information recording device having high-frequency field generating multilayer material with a receded section disposed between main and opposing poles

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

Microwave assisted magnetic recording head and microwave assisted magnetic recording apparatus having a magnetic flux rectifying layer with a magnetic flux rectifying action

HITACHI GLOBAL STORAGE TECH

Thermally assisted recording system

Thermally assisted recording system

HITACHI GLOBAL STORAGE TECH NL

Microwave-assisted magnetic recording device and method of formation thereof

YASUI KAN

Energy-assisted magnetic recording head and magnetic recording device

SHIIMOTO MASATO

Microwave-assisted magnetic recording head and magnetic read/write apparatus using the same

AKAGI FUMIKO

Thermally assisted recording media and system