Inventor
URATA KAZUMOTO
JP25 patents
⚠️ This page may combine multiple inventors who share the name “URATA KAZUMOTO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
10 patentsUS5214918AJun 1, 1993
Refrigerator and method for indicating refrigerant amount
HITACHI LTD130 citations97
US5651263AJul 29, 1997
Refrigeration cycle and method of controlling the same
HITACHI LTD81 citations95
US6772607B2Aug 10, 2004
Refrigerating device
HITACHI LTD15 citations92
US5829262ANov 3, 1998
Capacity control device in refrigerating cycle
HITACHI LTD40 citations92
US5768902AJun 23, 1998
Refrigeration cycle and method of controlling the same
HITACHI LTD19 citations92
US5709090AJan 20, 1998
Refrigerating system and operating method thereof
HITACHI LTD33 citations92
US5353604AOct 11, 1994
Refrigeration cycle
HITACHI LTD28 citations92
US5410887AMay 2, 1995
Apparatus for detecting composition of refrigerant and method therefor
HITACHI LTD41 citations91
US6505480B2Jan 14, 2003
Air-conditioner, outdoor unit and refrigeration unit
HITACHI LTD11 citations81
US5065588ANov 19, 1991
Air-conditioner system
HITACHI LTD9 citations73
JOHNSON CONTROLS HITACHI AIR CONDITIONING TECH HONG KONG LIMITED
5 patentsUS10473353B2Nov 12, 2019
Air conditioner and defrosting operation method therefor
JOHNSON CONTROLS HITACHI AIR CONDITIONING TECH HONG KONG LIMITED2 citations69
US10274211B2Apr 30, 2019
Air conditioner
JOHNSON CONTROLS HITACHI AIR CONDITIONING TECH HONG KONG LIMITED1 citations59
US10054377B2Aug 21, 2018
Air conditioner
JOHNSON CONTROLS HITACHI AIR CONDITIONING TECH HONG KONG LIMITED1 citations49
US10989433B2Apr 27, 2021
Air conditioner
JOHNSON CONTROLS HITACHI AIR CONDITIONING TECH HONG KONG LIMITED0 citations47
US10670311B2Jun 2, 2020
Heat exchanger
JOHNSON CONTROLS HITACHI AIR CONDITIONING TECH HONG KONG LIMITED0 citations40
HITACHI JOHNSON CONTROLS AIR CONDITIONING INC
3 patentsUS10557648B2Feb 11, 2020
Cooling/heating switching unit and air conditioner including the same
HITACHI JOHNSON CONTROLS AIR CONDITIONING INC9 citations82
US10907902B2Feb 2, 2021
Heat exchanger
HITACHI JOHNSON CONTROLS AIR CONDITIONING INC1 citations60
US10527322B2Jan 7, 2020
Air conditioner
HITACHI JOHNSON CONTROLS AIR CONDITIONING INC0 citations51
JOHNSON CONTROLS TECH CO
2 patentsUS10895393B2Jan 19, 2021
Variable refrigerant flow system with pressure optimization using extremum-seeking control
JOHNSON CONTROLS TECH CO0 citations61
US10655878B2May 19, 2020
Variable refrigerant flow system with sub-cooling temperature optimization using extremum-seeking control
JOHNSON CONTROLS TECH CO0 citations39