Inventor

AYAI NAOKI

JP41 patents

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

AYAI NAOKI

SUMITOMO ELECTRIC INDUSTRIES

Oxide superconducting wire having insulating coat and production method thereof

Power conversion device and three-phase alternating current power supply device

Wire for Nb3 X superconducting wire

Power conversion system and control method therefor

Method of manufacturing oxide superconducting wire, oxide superconducting wire, superconducting coil and superconducting apparatus

Power supply device and switch control method therefor

Manufacturing method of superconducting wire

Conversion device

Inverter device with a control unit

Conversion device

Oxide high-temperature superconducting wire and method of producing the same

Method of preparing Nb3 Al superconducting wire

DC/DC conversion system, electricity storage system, and method for controlling DC/DC converter

Power conversion device and control method for same

Conversion device for converting voltage in a non-insulated manner and method for controlling the same

Gate-blocking a DC/DC converter based upon output current of an AC reactor in a power conversion device

Superconducting coil and superconducting apparatus

Superconducting cable

Power storage device

Inverter, parallel inverter system, and method of controlling inverter

Power converter for performing conversion from DC to AC or vice versa, and method for controlling the power converter

Method of producing a material of oxide superconductor, method of producing an oxide superconducting wire, and superconducting apparatus

Method of manufacturing superconducting wire

Oxide high-temperature superconductor wire and method of producing the same

Power conversion device and control method for power conversion device

Superconducting coil and superconducting apparatus

Method of preparing oxide superconducting wire

Power supply device and power supply system

Power conversion device and three-phase alternating current power supply device

Superconducting wire

Conversion device having a control unit for detecting arm short-circuit

Power conversion device performing DC/AC power conversion via intermediate bus, and control method thereof

Power conversion device and three-phase AC power supply device

Power conversion device and three-phase AC power supply device

Power conversion device and method for controlling same

Power supply unit and method for backfeed protection thereof

Inverter device

High-frequency switching type conversion device

Power conversion device and method for determining operational state of breaking device

SUMITOMO ELKECTRIC IND LTD

Nb3 Al multi-filamentary superconducting wire

AYAI NAOKI

Precursor wire of oxide superconducting wire and production method thereof and oxide superconducting wire produced by using the precursor wire