Inventor

OKADO CHIHIRO

JP26 patents

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

OKADO CHIHIRO

TOKYO SHIBAURA ELECTRIC CO

Inverter system

Inverter provided with an overvoltage clamping circuit

Control system for a voltage-type inverter

Control device of inverters

Commutation control device for current type inverters

Method and apparatus for controlling current type inverters

Inverter device

Constant power control of a D.C. electric motor for handling cargoes

DC Power source

Device for controlling the commutating angle of an inverter device

Field control system for controlling induction machines

Method and apparatus for controlling electric valves in AC power supply

Resistive welder having a controlled output voltage unaffected by secondary circuit disconnection

TOSHIBA KK

Uninterruptible power supply utilizing a synchronized chopper for power factor improvement

Protection device for stopping operation of an inverter

Protection circuit for an insulated gate bipolar transistor utilizing a two-step turn off

Method and apparatus for controlling a battery car

Control equipment for resistance welding machine

Overcurrent protective circuit for modulated-conductivity type MOSFET

System interconnection protective device for non-utility generation equipment

Power transistor overcurrent protection circuit

Bridge type power converter with improved efficiency

Pulse width modulator used for a power converter with a transformer

Control system for a voltage-type inverter

Control equipment for resistance welding machine

NAS TOA CO LTD

Diode defect detecting device