HITACHI AIR CONDITIONING SYS innovation strategy

Patent filings in countries

#	Country	Total Patents
#1	Japan	68
#2	China	29
#3	Republic of Korea	14
#4	United States	7
#5	EPO (European Patent Office)	5
#6	Taiwan	5
#7	WIPO (World Intellectual Property Organization)	1

#	Industry
#1	Thermal processes
#2	Engines, pumps and turbines
#3	Environmental technology
#4	Electrical machinery and energy
#5	Machines

#	Technology
#1	Refrigerators
#2	Rotary-pistons
#3	Climate change mitigation in buildings
#4	Dynamo-electric machines
#5	Air-conditioning
#6	Electric motor controls
#7	Reduction of greenhouse gas emissions
#8	Unspecified technologies
#9	Rotary pistons
#10	Heat-exchange device details

Publication	Filing date	Title
JP2006118760A	2004-10-20	Electric water heater
JP2006097925A	2004-09-28	Electric hot water supplier
JP2006038408A	2004-07-30	Storage type water heater
JP2006038276A	2004-07-23	Ice thermal storage type air conditioner
JP2005315490A	2004-04-28	Electric water heater
JP2005133956A	2003-10-22	Hot water supply and heating system
JP2005114268A	2003-10-09	Heat pump type water heater
JP2004337685A	2003-05-14	Structure of air filter exchange part and air filter exchange method
JP2004293995A	2003-03-28	Multifunctional heat pump type hot water supply machine
JP2004294019A	2003-03-28	Electric water heating apparatus
JP2004293839A	2003-03-26	Electric water heater
JP2004278917A	2003-03-17	Method of setting standard water level data of bathtub in bath water heater
JP2004170025A	2002-11-21	Electric water heater
JP2004116828A	2002-09-25	Electric water heater
JP2004116829A	2002-09-25	Hot water supply system
JP2004116830A	2002-09-25	Bathroom hot water supply device
JP2004116826A	2002-09-25	Piping structure of hot water storage type electric water heater
JP2004116827A	2002-09-25	Antifreezing operation method for hot-water supply device for supplying hot water to bathtub
JP2004100997A	2002-09-06	Hot-water supply heating system
TW571487B	2002-08-09	Self-starting synchronous motor and compressor using the same