Inventor

SHIIMOTO MASATO

JP51 patents

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

SHIIMOTO MASATO

HGST Netherlands BV

Pile spin-torque oscillator with AF-mode oscillation for generating high AC-field in microwave-assisted magnetic recording

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

Asymmetric MAMR head with self-aligned spin torque oscillator along flare edge for shingled magnetic recording

MAMR head with recessed STO

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

Microwave-assisted magnetic recording head with asymmetric side gap for shingled magnetic recording

Microwave assisted magnetic recording (MAMR) head having an offset spin torque oscillator (STO) and narrow trailing gap

Spin-torque oscillator for microwave assisted magnetic recording

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

Hard disk drive with contact detection using a spin torque oscillator

Negative-polarization spin-torque-oscillator

MAMR head adapted for high speed switching

Magnetic data recording system with mirror image asymmetric magnetic write elements

AF-mode STO with negative Hk spin polarization layer

Two dimensional magnetic read head having asymmetrical secondary read elements

Implementing spin torque oscillator erasure prevention in microwave-assisted magnetic recording (MAMR) hard disk drives

Microwave-assisted magnetic recording head with high saturation magnetization material side shield

Extended spin torque oscillator

Head structure with electric damage protection for a microwave-assisted hard disk drive

AF-coupled dual side shield reader with AF-coupled USL

Graded side shield gap reader

Asymmetric sensitivity reader

WESTERN DIGITAL TECH INC

Magnetic write head for providing spin-torque-assisted write field enhancement

Magnetic write head with write-field enhancement structure including a magnetic notch

Magnetic write head for providing spin-torque-assisted write field enhancement

Magnetic write head for providing spin-torque-assisted write field enhancement

Switching period control of microwave assisted magnetic recording for pole erasure suppression

Spintronic device comprising dual FGL and dual SPL to reduce perpendicular field at writing location

Dual FGL and dual SPL spintronic device to reduce perpendicular field at writing location

Switching period control of microwave assisted magnetic recording for pole erasure suppression

Switching period control of microwave assisted magnetic recording for pole erasure suppression

SHIIMOTO MASATO

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

Magnetic recording head and magnetic recording apparatus

Magnetoresistive effect head having a free layer and a magnetic domain control layer that applies a magnetic field more strongly in an upper part of the free layer

Magnetic head using a synthetic ferri free structure

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

KATADA HIROYUKI

Magnetic read head

Magnetic disk drive and microwave assisted recording method

MATSUBARA MASATO

Magnetic recording device

Spin-torque oscillator for microwave assisted magnetic recording

KUSUKAWA KIKUO

Microwave-assisted magnetic recording head having a current confinement structure

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

SATO YO

Differential magnetoresistive effect head and magnetic recording/reading device

YASUI KAN

Differential head having a balanced output and method of manufacturing thereof

UDO YUTA

Magnetic recording head, method of manufacturing the same, and magnetic disk unit

YOSHIDA NOBUO

Magnetic heads having a graded domain control film and methods of manufacture thereof