Inventor

ROPPONGI TETSUYA

JP80 patents

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

ROPPONGI TETSUYA

TDK CORP

Magnetic recording head with spin torque oscillator layers satisfying width, thickness and angle relationship formulas

Thin film magnetic head and method of manufacturing the same

Multilayer element including base multilayer body, magnetic sensor and microwave assisted magnetic head

Microwave assisted magnetic recording head with spin torque oscillator corner angle relationship, head gimbal assembly, and magnetic recording device

Magnetic recording head with spin torque oscillator, head gimbal assembly and magnetic recording apparatus

Magnetic recording head with spin torque oscillator, head gimbal assembly and magnetic recording apparatus

Magnetic head apparatus and magnetic recording and reproducing apparatus

Thin-film magnetic head for perpendicular magnetic recording and manufacturing method of thin-film magnetic head

Magnetic head for vertical magnetic recording including main pole layer having varying width and thickness, head gimbal assembly, and hard disk drive

Thin film magnetic head and method of manufacturing the same

Thin-film magnetic head and method of manufacturing same

Thin-film magnetic head having two magnetic layers, one of which includes a pole portion layer and a yoke portion layer, and method of manufacturing same

Slider with negative and multiple positive pressure generation portions and head including the same

Slider with negative and positive pressure generating portions and head including the same

Heat assist magnetic write head, head gimbals assembly, head arm assembly, and magnetic disk device

Thin-film magnetic head with heating portion and protrusion adjustment portion, head gimbal assembly equipped head, magnetic recording/reproducing apparatus equipped HGA, and manufacturing method of head

Thermally-assisted magnetic recording head and thermally-assisted magnetic recording method

Thin film magnetic head having magnetic pole with controlled dimensions

Method of manufacturing magnetic head for perpendicular magnetic recording

Thin-film magnetic head and method of manufacturing same

Microwave assisted magnetic head, head gimbal assembly, and magnetic recording device

Method of manufacturing thin-film magnetic head

Thin-film magnetic head and method of manufacturing same

Thermally-assisted magnetic recording head, head gimbals assembly, head arm assembly and magnetic recording unit

HEADWAY TECH INC

Magnetic flux guiding device with spin torque oscillator (STO) film having negative spin polarization layers in assisted writing application

Magnetic flux guiding device with spin torque oscillator (STO) film having one or more negative spin polarization layers in assisted writing application

Magnetic flux guiding device with antiferromagnetically coupled (AFC) spin polarizer in assisted writing application

Magnetic flux guiding device with antiferromagnetically coupled (AFC) oscillator in assisted writing application

Magnetic flux guiding device with antiferromagnetically coupled (AFC) spin polarizer in assisted writing application

Optimizing a current distribution in write heads for efficient energy-assisted magnetic recording

MIYAUCHI DAISUKE

Thermally-assisted magnetic recording head including plasmon generator

Thermally-assisted magnetic recording head comprising near-field light generator

Magnetoresistive element and thin film magnetic head

SASAKI YOSHITAKA

Magnetic head including spin torque oscillator

Magnetic head including spin torque oscillator

Magnetic head with a main pole including first and second layers and manufacturing method for the same

AOKI SUSUMU

Thermally-assisted magnetic recording head capable of preventing propagated light being absorbed by magnetic pole

Heat-assisted magnetic write head, head gimbals assembly, head arm assembly, and magnetic disk device

Thermally-assisted magnetic recording head and thermally-assisted magnetic recording method

TOSHIBA KK

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

Perpendicular magnetic recording head and perpendicular magnetic recording apparatus

TANAKA KOSUKE

Thermally-assisted magnetic recording head having a gap between propagation edge and magnetic pole

Thermally-assisted magnetic recording head including a protruding member

ARAKI HIRONORI

Magnetic head including spin torque oscillator and manufacturing method for the same

Magnetic head including main pole having top surface including first inclined portion, second inclined portion, and third inclined portion, and spin torque oscillator

SAE MAGNETICS HK LTD

Thin film magnetic head and magnetic recording apparatus

ROPPONGI TETSUYA

Magnetic recording apparatus provided with microwave-assisted head

AOYAMA TSUTOMU

Microwave assisted magnetic head and magnetic disk device

TSUTSUMI TAKESHI

Thermally-assisted magnetic recording head including plasmon generator

HIRATA KEI

Plasmon generator and thermally-assisted magnetic recording head having the same