Assignee
HITACHI AIR CONDITIONING SYS
JP·7 granted patents·76 citations·filing 2000–2006
Top patents by PatentIndex Score
7 records- 0190US6408645B1Air-conditioner, outdoor unit and refrigeration unitHITACHI AIR CONDITIONING SYS·Filed 2001·Granted Jun 25, 2002·40 cites·4 claims
- 0288US7437882B2Apparatus for driving a compressor and a refrigerating air conditionerHITACHI AIR CONDITIONING SYS·Filed 2005·Granted Oct 21, 2008·10 cites·9 claims
- 0372US6422844B2Screw compressorHITACHI AIR CONDITIONING SYS·Filed 2000·Granted Jul 23, 2002·14 cites·6 claims
- 0468US7438539B2Hermetic type scroll compressor and refrigerating and air-conditioning apparatusHITACHI AIR CONDITIONING SYS·Filed 2006·Granted Oct 21, 2008·5 cites·9 claims
- 0553US6926075B2Plate type heat exchangerHITACHI AIR CONDITIONING SYS·Filed 2003·Granted Aug 9, 2005·2 cites·13 claims
- 0645US6516629B2Refrigeration cycleHITACHI AIR CONDITIONING SYS·Filed 2002·Granted Feb 11, 2003·3 cites·5 claims
- 0744US6634875B2Scroll compressor having an Oldham's ring containing silicon particlesHITACHI AIR CONDITIONING SYS·Filed 2002·Granted Oct 21, 2003·2 cites·9 claims
Join the waitlist — get patent alerts
Get an alert when HITACHI AIR CONDITIONING SYS files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →