Inventor

TAKEO AKIHIKO

JP66 patents

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

TAKEO AKIHIKO

TOSHIBA KK

Magnetic recording apparatus having magnetic flux control part and magnetic recording head having magnetic flux control part

Apparatus for assisting write operation using high frequency magnetic field in disk drive

Magnetic disk drive with structure for avoiding DC magnetic disturbance on a disk surface

Magnetic head having magnetic pole and shield, and magnetic recording and reproducing device

Data channel for processing user data and servo data in a disk drive adopting perpendicular magnetic recording system

Combination perpendicular record and reproduce head having an auxiliary pole recessed from an air bearing surface and spaced from one of a pair of reproducing element sheilds

Perpendicular magnetic recording head having narrow recording gap and perpendicular magnetic recording apparatus using the same

Magnetic recording and reading apparatus and magnetic recording method

Method of manufacturing magnetic recording head

Magnetic recording head and disk device with the same

High-frequency oscillation device, magnetic recording head including the same, and disk device

Magnetic disk device

Magnetic disk drive and head adjusting method

Magnetic disk device having first and second assist elements and write operation method

Magnetic head and disk device having gap layers with different magnetic relative permeabilities

Magnetic disk device and write processing method

Magnetic disk device which controls a recording operation and a non-recording operation of a recording head and a recording head control method of the magnetic disk device

Magnetic recording medium and method of manufacturing the same

Magnetic recording head with high frequency oscillator and disk drive with the same

Magnetic recording medium and method for producing the same

Magnetic disk device having first and second assist elements and write operation method

Magnetic recording head with specified thickness and saturation magnetic flux density products for STO magnetic layers

Magnetic head with beveled main pole and spin torque oscillator, method of manufacturing the same, and magnetic recording/reproduction apparatus

Device for suppressing magnetic noise of dual-layered disk in a disk drive

Magnetic recording/reproducing device and magnetic recording/reproducing method

Magnetic recording and reproducing device having a magnetic recording head including a magnetic flux control layer between a main magnetic pole and an auxiliary magnetic pole

Thin magnetic film, method of manufacturing the same, and high frequency oscillator, magnetic head, magnetic recording medium, and magnetic recording/reproducing apparatus using thin magnetic film

Disk drive

Method and apparatus for write compensation of perpendicular magnetic recording in disk drive

Magnetic disk device having two regions of different thicknesses

Magnetic disk device

Magnetic disk device and rewrite processing method

Magnetic recording apparatus

Magnetic recording head with specified thickness and saturation magnetic flux density products for STO magnetic layers

Magnetic recording medium and method of manufacturing the same

Magnetic recording and reproducing device with stacked body configuration

Method of manufacturing spin torque oscillator

Method for forming pattern, method for producing magnetic recording medium using the same, magnetic recording medium, and method for producing stamper

Pattern formation method, stamper manufacturing method, and magnetic recording medium manufacturing method

TAKEO AKIHIKO

Spin torque oscillator and magnetic recording apparatus

Method of manufacturing magnetoresistive element

Recording head, disk drive with recording head, and recording method using recording head

Spin torque oscillator, method of manufacturing the same, magnetic recording head, magnetic head assembly, and magnetic recording apparatus

SHOWA DENKO KK

Magnetic recording medium, method of manufacturing magnetic recording medium and magnetic recording reproducing apparatus

Magnetic recording medium, process for producing same, and magnetic recording reproducing apparatus

YAMADA KENICHIRO

Magnetic recording head and magnetic recording/reproducing apparatus using the same

YANO KOJI

Method and apparatus for controlling head with spin-torque oscillator in a disk drive

TAGUCHI TOMOKO

Head gimbal assembly and disk drive with the same

ZHOU YUCHEN

Perpendicular spin torque oscillator FMR frequency measurement method

KANUSHIKI KAISHA TOSHIBA

Method and apparatus for correcting data errors in a disk drive