Patents by Inventor Keitaro Hoshika

Keitaro Hoshika 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).

  • HVAC system with integrated supply of outdoor air
    Patent number: 11892181
    Abstract: An HVAC system with an integrated source of outdoor air is provided. In one embodiment, an HVAC system includes an outdoor unit, having a compressor and a heat exchanger, and a ventilation unit to receive and provide outdoor air to a structure. The ventilation unit has a blower, a dehumidifying coil, and a reheat coil installed in a housing. The HVAC system also includes a first electronic expansion valve coupled outside the housing of the ventilation unit to control refrigerant flow into the dehumidifying coil and a second electronic expansion valve coupled outside the housing of the ventilation unit to control refrigerant flow into the reheat coil. An electronic expansion valve controller is connected to control operation of the first electronic expansion valve and the second electronic expansion valve. Additional systems, devices, and methods are also disclosed.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: February 6, 2024
    Assignee: Goodman Manufacturing Company, L.P.
    Inventors: Kazuki Ikari, Keitaro Hoshika, Hideyuki Nakagawa, Masahiro Honda
  • HVAC SYSTEM WITH INTEGRATED SUPPLY OF OUTDOOR AIR
    Publication number: 20230258349
    Abstract: An HVAC system with an integrated source of outdoor air is provided. In one embodiment, an HVAC system includes an outdoor unit, having a compressor and a heat exchanger, and a ventilation unit to receive and provide outdoor air to a structure. The ventilation unit has a blower, a dehumidifying coil, and a reheat coil installed in a housing. The HVAC system also includes a first electronic expansion valve coupled outside the housing of the ventilation unit to control refrigerant flow into the dehumidifying coil and a second electronic expansion valve coupled outside the housing of the ventilation unit to control refrigerant flow into the reheat coil. An electronic expansion valve controller is connected to control operation of the first electronic expansion valve and the second electronic expansion valve. Additional systems, devices, and methods are also disclosed.
    Type: Application
    Filed: February 17, 2022
    Publication date: August 17, 2023
    Inventors: Kazuki Ikari, Keitaro Hoshika, Hideyuki Nakagawa, Masahiro Honda