Inventor
OZU MASAO
CN25 patents
⚠️ This page may combine multiple inventors who share the name “OZU MASAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
16 patentsUS5784893AJul 28, 1998
Air conditioning system with built-in intermediate heat exchanger with two different types of refrigerants circulated
TOSHIBA KK57 citations95
US5616019AApr 1, 1997
Rolling piston type expansion machine
TOSHIBA KK54 citations95
US6162035ADec 19, 2000
Helical-blade fluid machine
TOSHIBA KK18 citations92
US5207071AMay 4, 1993
Current control apparatus for air-conditioning system
TOSHIBA KK27 citations91
US5775883AJul 7, 1998
Rolling-piston expander apparatus
TOSHIBA KK39 citations90
US4781542ANov 1, 1988
Hermetically-sealed compressor with motor
TOSHIBA KK41 citations88
US5885062AMar 23, 1999
Switching valve fluid compressor and heat pump type refrigeration system
TOSHIBA KK17 citations83
US4584750AApr 29, 1986
Enclosed type compressor and method for assembling the same
TOSHIBA KK20 citations79
US4702088AOct 27, 1987
Compressor for reversible refrigeration cycle
TOSHIBA KK15 citations74
US6089834AJul 18, 2000
Helical compressor and method of assembling the same
TOSHIBA KK13 citations73
US5788470AAug 4, 1998
Fluid machine having two spiral working mechanisms with a stepped shape section
TOSHIBA KK11 citations73
US5782622AJul 21, 1998
Hermetic compressor having a frame supporting the comprission mechanism
TOSHIBA KK15 citations73
US5297395AMar 29, 1994
Air conditioner using rotary-type heat exchangers
TOSHIBA KK15 citations71
US6425744B2Jul 30, 2002
Helical blade type compressor having a helical blade in a stationary cylinder
TOSHIBA KK3 citations62
US4743177AMay 10, 1988
Enclosed type compressor and method for assembling the same
TOSHIBA KK4 citations60
US6338617B1Jan 15, 2002
Helical-blade fluid machine
TOSHIBA KK0 citations51
TOKYO SHIBAURA ELECTRIC CO
5 patentsUS4326868AApr 27, 1982
Refrigeration system utilizing a gaseous refrigerant bypass
TOKYO SHIBAURA ELECTRIC CO48 citations92
US4522038AJun 11, 1985
Refrigerating cycle apparatus
TOKYO SHIBAURA ELECTRIC CO8 citations74
US4508495AApr 2, 1985
Rotary shaft for compressor
TOKYO SHIBAURA ELECTRIC CO19 citations67
USD282546SFeb 11, 1986
Rotary compressor
TOKYO SHIBAURA ELECTRIC CO11 citations66
US4476691AOct 16, 1984
Refrigeration cycle apparatus
TOKYO SHIBAURA ELECTRIC CO5 citations63
GUANGDONG MEIZHI COMPRESSOR CO LTD
4 patentsUS10072661B2Sep 11, 2018
Rotatory compressor and refrigerating cycle device
GUANGDONG MEIZHI COMPRESSOR CO LTD2 citations71
US10605492B2Mar 31, 2020
Refrigeration cycle device
GUANGDONG MEIZHI COMPRESSOR CO LTD3 citations69
US12110890B2Oct 8, 2024
Rotary compressor and refrigeration cycle device
GUANGDONG MEIZHI COMPRESSOR CO LTD0 citations62
US10626867B2Apr 21, 2020
Electric compressor and refrigeration device having same
GUANGDONG MEIZHI COMPRESSOR CO LTD0 citations39