Inventor
HIKAWA TAKESHI
JP8 patents
Patents
8 patentsUS7265954B2Sep 4, 2007
Method for estimating DC motor coil temperature, DC motor control method and their devices
DAIKIN IND LTD28 citations91
US7392158B2Jun 24, 2008
Drive unit for compressor and refrigerator
DAIKIN IND LTD31 citations89
US8011198B2Sep 6, 2011
Method of preheating inverter-driven compressor and device therefor
DAIKIN IND LTD7 citations82
US7585160B2Sep 8, 2009
Hermetic compressor
DAIKIN IND LTD9 citations82
US11346570B2May 31, 2022
Refrigerant leakage determination system and refrigeration cycle apparatus
DAIKIN IND LTD3 citations71
US11898783B2Feb 13, 2024
Performance degradation diagnosis system for refrigeration cycle apparatus
DAIKIN IND LTD1 citations58
US12013139B2Jun 18, 2024
Air conditioning apparatus, management device, and connection pipe
DAIKIN IND LTD0 citations51
US11971203B2Apr 30, 2024
Apparatus, method, and program for estimating amount of refrigerant
DAIKIN IND LTD0 citations45