Patents by Inventor Chisato TANIGUCHI

Chisato TANIGUCHI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Air-conditioning apparatus and method of determining operation condition
    Patent number: 11255560
    Abstract: An air-conditioning apparatus includes a plurality of indoor units each individually conditioning air in an air-conditioning target space, a storage unit storing detection values of a plurality of suction temperature sensors in time series, a timer measuring, for each of the plurality of indoor units, a preset temperature arrival period it takes for a suction temperature to reach a preset temperature for the air-conditioning target space after start of a thermo-on state or a thermo-off state, a calculation unit calculating, for each of the plurality of indoor units, a temperature change slope representing a change in the suction temperature for the preset temperature arrival period, and a determination unit comparing the temperature change slope of each of the plurality of indoor units with a determination threshold to determine, as an abnormal indoor unit, the indoor unit having the temperature change slope greater than the determination threshold.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: February 22, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Chisato Taniguchi, Chika Tanabe
  • AIR-CONDITIONING APPARATUS AND METHOD OF DETERMINING OPERATION CONDITION
    Publication number: 20210231332
    Abstract: An air-conditioning apparatus includes a plurality of indoor units each individually conditioning air in an air-conditioning target space, a storage unit storing detection values of a plurality of suction temperature sensors in time series, a timer measuring, for each of the plurality of indoor units, a preset temperature arrival period it takes for a suction temperature to reach a preset temperature for the air-conditioning target space after start of a thermo-on state or a thermo-off state, a calculation unit calculating, for each of the plurality of indoor units, a temperature change slope representing a change in the suction temperature for the preset temperature arrival period, and a determination unit comparing the temperature change slope of each of the plurality of indoor units with a determination threshold to determine, as an abnormal indoor unit, the indoor unit having the temperature change slope greater than the determination threshold.
    Type: Application
    Filed: June 20, 2018
    Publication date: July 29, 2021
    Inventors: Chisato TANIGUCHI, Chika TANABE