Inventor

KOUCHIYAMA AKIRA

JP58 patents

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

KOUCHIYAMA AKIRA

SONY CORP

Memory device and method of production and method of use of same and semiconductor device and method of production of same

Memory device and method of production and method of use of same and semiconductor device and method of production of same

Memory element and memory device

Resist material and nanofabrication method

Memory device having variable resistive memory element

Optical lens and method of producing the same, method of producing optical lens array, focus error signal production method, and optical pickup apparatus

Memory device and storage apparatus

Resist material and nanofabrication method

Memory device

Storage device with resistive memory cells enduring repetitive data writing

Storage device

Memory device

Storage device

Magnetic field modulation magnetic head, magneto-optical element, optical pickup device, and optical disk drive, in which first and second magnetic cores are placed on opposite sides of magnetic field generation coil to achieve low power consumption and high efficiency

Memory element and memory device comprising memory layer positioned between first and second electrodes

Resist material and nanofabrication method

Optical device, optical system, method of production of same, and mold for production of same

Optical device, optical system, method of production of same, and mold for production of same

Optical device, optical system, method of production of same, and mold for production of same

Optical device, optical system, method of production of same, and mold for production of same

Method for producing recording medium, method for producing stamper of recording medium, apparatus for producing recording medium, and apparatus for producing stamper of recording medium

Recording/reproducing apparatus and a magneto-optical recording medium for use therewith

Recording/reproducing apparatus for use with a photomagnetic recording medium

Magnetic recording medium having an underlayer and a thin film magnetic layer which consists of a specified cobalt-platinum-palladium alloy

Memory component, memory device, and method of operating memory device

Memory element and memory device comprising memory layer positioned between first and second electrodes

Method of producing optical disk-use original and method of producing optical disk

Method for preparing an optical device using position markers around an optical lens and a light barrier film

Optical lens and method of producing the same, method of producing optical lens array, focus error signal production method, and optical pickup apparatus

Optical lens and method of producing the same, method of producing optical lens array, focus error signal production method, and optical pickup apparatus

Optical lens and method of producing the same, method of producing optical lens array, focus error signal production method, and optical pickup apparatus

Optical system, method of producing optical system, and optical pickup

Method of forming a magneto-resistance effect thin film

MR film with upper and lower magnetic layers with resistivity greater than that of MR film magnetic layers

Memory component, memory device, and method of operating memory device

Memory component, memory device, and method of operating memory device

Memory device comprising a memory layer and a metal chalcogenide ion-source layer

Method of making master for manufacturing optical disc and method of manufacturing optical disc

Optical head and optical pickup having improved thermal coefficient matching for thermal expansion adjustment

Optical device, optical system, method of production of same, and mold for production of same

Optical lens and method of producing the same, method of producing optical lens array, focus error signal production method, and optical pickup apparatus

Optical device, method for producing the same and recording and/or reproducing apparatus employing the same

Optical lens and method of producing the same, method of producing optical lens array, focus error signal production method, and optical pickup apparatus

ARATANI KATSUHISA

Memory device and storage apparatus

Memory device and storage apparatus

Memory device comprising a non-phase-changing amorphous chalcogenide memory layer and a metal chalcogenide ion-source layer

SONY CORPORTION

Sil magneto-optic transducer having thin film magnetic coil and holded magnetic core

YASUDA SHUICHIRO

Memory cell

OHBA KAZUHIRO

Memory component, memory device, and method of operating memory device

KOUCHIYAMA AKIRA

Storage element and storage apparatus