Patent assignee · JP · COMPANY

Hitachi-Johnson Controls Air Conditioning, Inc.

94Patents
93Active
94Granted
54Portfolio score

Filing activity: May 22, 2012 → May 8, 2023

Most-cited patents

PatentTitleAreaCited byStatus
USD937312S1 Display screen or portion thereof of a remote control device with graphical user interface General 22 Active
USD827585S1 Remote controller for air conditioner General 19 Active
USD937311S1 Display screen or portion thereof of a remote control device with graphical user interface General 17 Active
USD828911S1 Outdoor unit for air conditioner General 13 Active
USD847321S1 Outdoor unit for air conditioner General 12 Active
USD847322S1 Outdoor unit for air conditioner General 12 Active
USD936694S1 Display screen or portion thereof of a remote control device with graphical user interface General 11 Active
USD938923S1 Remote controller for air conditioning equipment General 9 Active
US10557648B2 Cooling/heating switching unit and air conditioner including the same Mechanical Engineering; Lighting; Heating 6 Active
USD939454S1 Remote controller for air conditioning equipment General 5 Active
US10533783B2 Air conditioner having compressor bypass and evaluation of volume of connecting pipe Mechanical Engineering; Lighting; Heating 3 Active
US11280507B2 Air-conditioner Emerging Cross-Sectional Technologies 3 Active
US11015834B2 Air conditioning system, air conditioning method, and control device Emerging Cross-Sectional Technologies 2 Active
US10570323B2 Refrigerant composition and refrigeration cycle apparatus including refrigerant composition Mechanical Engineering; Lighting; Heating 2 Active
US10584744B2 Refrigerant compressor with supporting bearing insulation Mechanical Engineering; Lighting; Heating 2 Active
US11236954B2 Heat exchanger and air-conditioner Mechanical Engineering; Lighting; Heating 2 Active
US10386081B2 Air-conditioning device Mechanical Engineering; Lighting; Heating 2 Active
US10359211B2 Refrigeration and air conditioning device Mechanical Engineering; Lighting; Heating 2 Active
US10907871B2 Refrigerant flow path switch and air conditioner Mechanical Engineering; Lighting; Heating 2 Active
US11408618B2 Indoor unit of air-conditioner Mechanical Engineering; Lighting; Heating 2 Active
US10389282B2 DC power supply unit and air conditioner using same Emerging Cross-Sectional Technologies 1 Active
US10594239B2 Motor drive device and refrigeration equipment Emerging Cross-Sectional Technologies 1 Active
US10190795B2 Air conditioner diagnostic system, air conditioner and mobile communication terminal Mechanical Engineering; Lighting; Heating 1 Active
US10047746B2 Refrigerant compressor and refrigeration cycle device Mechanical Engineering; Lighting; Heating 1 Active
US10651774B2 Inverter and motor drive device, freezing device Electricity 1 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.