Assignee
SYSTEM HOMES KK
JP·9 granted patents·412 citations·filing 1982–2021
Top patents by PatentIndex Score
9 records- 0196US4420947AHeat pump air conditioning systemSYSTEM HOMES KK·Filed 1982·Granted Dec 20, 1983·177 cites·31 claims
- 0293US4593881AElectronic expansion valveSYSTEM HOMES KK·Filed 1985·Granted Jun 10, 1986·100 cites·10 claims
- 0388US11496082B2Synchronous motor drive system and synchronous motor drive methodSYSTEM HOMES KK·Filed 2021·Granted Nov 8, 2022·1 cites·9 claims
- 0488US4507936AIntegral solar and heat pump water heating systemSYSTEM HOMES KK·Filed 1983·Granted Apr 2, 1985·60 cites·28 claims
- 0582US11056995B2Synchronous motor drive system and synchronous motor drive methodSYSTEM HOMES KK·Filed 2020·Granted Jul 6, 2021·1 cites·6 claims
- 0681US7456600B1Pulse code width modulation motor drive systemSYSTEM HOMES KK·Filed 2008·Granted Nov 25, 2008·14 cites·19 claims
- 0774US4481788AWater heating systemSYSTEM HOMES KK·Filed 1982·Granted Nov 13, 1984·29 cites·14 claims
- 0857US4634952AInverterSYSTEM HOMES KK·Filed 1983·Granted Jan 6, 1987·17 cites·10 claims
- 0943US5420778AIndependent real time control of output frequency and voltage of PWM inverterSYSTEM HOMES KK·Filed 1994·Granted May 30, 1995·13 cites·4 claims
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