Inventor

YAMAKAWA TAKASHI

JP65 patents

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

YAMAKAWA TAKASHI

MITSUBISHI ELECTRIC CORP

Motor system, motor drive device, refrigeration cycle device, and air conditioner

Power converting apparatus, motor driving apparatus, and air conditioner

Motor driving device and air conditioner

Power converting apparatus, motor drive apparatus, and air conditioner

Power conversion device, motor drive control device, blower, compressor, and air conditioner

Motor drive apparatus and air conditioner

Heat pump apparatus, and air conditioner, heat pump water heater, and refrigerator including the heat pump apparatus

Power conversion device for converting AC power into DC power

Power converting apparatus, dehumidifier, air conditioner, and refrigeration apparatus

Motor driving apparatus

Air conditioner and driving device

Motor driving apparatus

Air conditioner

Power converting apparatus, motor drive control apparatus, blower, compressor, and air conditioner

Motor drive system and air conditioner

Motor driving apparatus

AC-DC converting apparatus, motor drive control apparatus, blower, compressor, and air conditioner

Motor driving apparatus, refrigerator, and air conditioner

Heat pump apparatus, air conditioner, and refrigerator

Outdoor unit

Outdoor unit

Outdoor machine and air conditioner

Motor driving device and air conditioner

Power converter

Electric vacuum cleaner and hand dryer

Power converting device that uses a sine-wave-shaped current control range to output drive signal

Power conversion apparatus and refrigeration air-conditioning apparatus

Backflow preventing device, power conversion apparatus, motor driver, and refrigerating and air-conditioning apparatus

SANYO ELECTRIC CO

Internal intermediate pressure 2-stage compression type rotary compressor

Double-cylinder two-stage compression rotary compressor

Multi-stage compression refrigerating device

Multi-stage compression refrigerating device

Two-cylinder type two-stage compression rotary compressor

YAMAHA CORP

Sound emission and collection device, and sound emission and collection method

Array microphone and sound collection method

Speaker array system

Array microphone and sound collection method

Sound emission and collection device, and sound emission and collection method

SHIMOMUGI TAKUYA

Power converting device, motor driving device, and refrigerating and air-conditioning apparatus

Backflow preventing means, power converting device, and refrigerating and air-conditioning apparatus

YAMAKAWA TAKASHI

Heat pump device, heat pump system, air conditioner, and freezer

Information update system

HATAKEYAMA KAZUNORI

Charging/discharging system

Air conditioner

KONSTANDOPOULOS ATHANASIOS G

Particulate matter sensor and exhaust gas purification apparatus

ARISAWA KOICHI

Power conversion apparatus and refrigeration air-conditioning apparatus

SHINOMOTO YOSUKE

Power supply switching device and switch board

KURIMOTO LTD

Valve assembly for powdery granules

KUSHIDA KOJI

Delay time calculation apparatus, delay time calculation method, and storage medium storing program therefor

KOIKE MAI

Masker sound generation apparatus and program