Inventor
NOZAWA SHIGEKAZU
JP18 patents
⚠️ This page may combine multiple inventors who share the name “NOZAWA SHIGEKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
12 patentsUS4727725AMar 1, 1988
Gas injection system for screw compressor
HITACHI LTD94 citations94
US5947709ASep 7, 1999
Scroll compressor with oiling mechanism
HITACHI LTD36 citations92
US5716202AFeb 10, 1998
Scroll compressor with oiling mechanism
HITACHI LTD36 citations92
US6554595B2Apr 29, 2003
Compressor with oil-mist separator
HITACHI LTD23 citations91
US6506039B1Jan 14, 2003
Screw compressor
HITACHI LTD24 citations91
US6183227B1Feb 6, 2001
Screw compressor
HITACHI LTD25 citations91
US4913634AApr 3, 1990
Screw compressor with slide valve movement preventing structure
HITACHI LTD28 citations91
US6257855B1Jul 10, 2001
Screw fluid machine
HITACHI LTD10 citations73
US6884049B2Apr 26, 2005
Screw compressor and method of manufacturing rotor for the same
HITACHI LTD10 citations72
US4261180AApr 14, 1981
Refrigerator
HITACHI LTD15 citations72
US4234296ANov 18, 1980
Screw compressor
HITACHI LTD17 citations71
US6273693B2Aug 14, 2001
Screw compressor
HITACHI LTD4 citations61
HITACHI APPLIANCES INC
3 patentsUS7442017B2Oct 28, 2008
Displacement type compressor having a self-start synchronous motor and start load reducing means
HITACHI APPLIANCES INC10 citations83
US7501734B2Mar 10, 2009
Motor, compressor, and air conditioner
HITACHI APPLIANCES INC3 citations62
US7163386B2Jan 16, 2007
Scroll compressor having a movable auxiliary portion with contact plane of a stopper portion to contact a pane of the fixed scroll through elastic pressure of high pressure fluid
HITACHI APPLIANCES INC6 citations60