Patents by Inventor Toshimichi NAKAYAMA

Toshimichi NAKAYAMA 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).

  • Publication number: 20200340699
    Abstract: An air conditioner switches between a normal refrigeration cycle and a defrosting refrigeration cycle, and includes: a refrigerant circuit that connects a first heat exchanger, a second heat exchanger, a radiation panel, and an expansion valve that regulates a flow rate of a refrigerant flowing through the radiation panel; and a controller that causes the air conditioner to switch between the normal refrigeration cycle and the defrosting cycle. During the normal refrigeration cycle, the radiation panel performs cooling or heating. During the defrosting cycle, the first heat exchanger serves as a radiator and the second heat exchanger serves as an evaporator. During the defrosting cycle, the controller causes the expansion valve to be in a fully closed state.
    Type: Application
    Filed: July 10, 2020
    Publication date: October 29, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Hiroshi Ebina, Takashi Hasegawa, Toshimichi Nakayama
  • Publication number: 20200132322
    Abstract: An air-conditioning device includes: a suction air temperature sensor provided in an indoor unit; a wireless temperature sensor unit separate from the indoor unit; an abnormal condition determining section determining whether or not the wireless temperature sensor unit is in an abnormal condition; an index setting section setting a temperature index value; and a controller controlling operation of the air-conditioning device based on the set temperature index value. While the abnormal condition determining section determines that the wireless temperature sensor unit is in the abnormal condition, the index setting section determines a measurement value of the suction air temperature sensor to be the temperature index value.
    Type: Application
    Filed: December 24, 2019
    Publication date: April 30, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Toshimichi NAKAYAMA, Yoshiteru NOUCHI, Kousuke SHIOHAMA, Ryouta SUHARA
  • Patent number: 10551082
    Abstract: An air-conditioning device includes: a suction air temperature sensor provided in an indoor unit; a wireless temperature sensor unit separate from the indoor unit; an abnormal condition determining section determining whether or not the wireless temperature sensor unit is in an abnormal condition; an index setting section setting a temperature index value; and a controller controlling operation of the air-conditioning device based on the set temperature index value. While the abnormal condition determining section determines that the wireless temperature sensor unit is in the abnormal condition, the index setting section determines a measurement value of the suction air temperature sensor to be the temperature index value.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: February 4, 2020
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Toshimichi Nakayama, Yoshiteru Nouchi, Kousuke Shiohama, Ryouta Suhara
  • Patent number: 10371404
    Abstract: A receiver unit includes: a receiving section receiving a signal of a measurement value (Tm2) transmitted from a wireless temperature sensor unit; an input connector connected to a sensor signal line, the sensor signal line being configured to transfer a signal of a measurement value (Tm1) of the suction air temperature sensor; a signal generator generating a signal serving as an index of indoor temperature, based on the measurement values (Tm1, Tm2) of the wireless temperature sensor unit and the suction air temperature sensor; and a signal output section outputting the signal generated by the signal generator to a controller of an air-conditioning device.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: August 6, 2019
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Toshimichi Nakayama, Yoshiteru Nouchi, Kousuke Shiohama
  • Publication number: 20190063775
    Abstract: A receiver unit includes: a receiving section receiving a signal of a measurement value (Tm2) transmitted from a wireless temperature sensor unit; an input connector connected to a sensor signal line, the sensor signal line being configured to transfer a signal of a measurement value (Tm1) of the suction air temperature sensor; a signal generator generating a signal serving as an index of indoor temperature, based on the measurement values (Tm1, Tm2) of the wireless temperature sensor unit and the suction air temperature sensor; and a signal output section outputting the signal generated by the signal generator to a controller of an air-conditioning device.
    Type: Application
    Filed: January 18, 2017
    Publication date: February 28, 2019
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Toshimichi NAKAYAMA, Yoshiteru NOUCHI, Kousuke SHIOHAMA
  • Publication number: 20190032980
    Abstract: An air-conditioning device includes: a suction air temperature sensor provided in an indoor unit; a wireless temperature sensor unit separate from the indoor unit; an abnormal condition determining section determining whether or not the wireless temperature sensor unit is in an abnormal condition; an index setting section setting a temperature index value; and a controller controlling operation of the air-conditioning device based on the set temperature index value. While the abnormal condition determining section determines that the wireless temperature sensor unit is in the abnormal condition, the index setting section determines a measurement value of the suction air temperature sensor to be the temperature index value.
    Type: Application
    Filed: January 18, 2017
    Publication date: January 31, 2019
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Toshimichi NAKAYAMA, Yoshiteru NOUCHI, Kousuke SHIOHAMA, Ryouta SUHARA