Patents by Inventor Junpei Mizobata

Junpei Mizobata 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 railway vehicle air-conditioning apparatus
    Patent number: 9796398
    Abstract: An air-conditioning apparatus includes a compressor, a four-way valve, expansion means, and an indoor heat exchanger, and further includes a check valve disposed between a discharge side of the compressor and the four-way valve, a first solenoid valve disposed between the expansion means and the indoor heat exchanger, and a controller. Opening and closing of the first solenoid valve are controllable. The controller switches the four-way valve and switches the first solenoid valve between open and closed states. When a heating operation is stopped, the controller switches the four-way valve from connection for the heating operation to connection for a cooling operation, closes the first solenoid valve, and then stops the compressor.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: October 24, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Junpei Mizobata, Wahei Shingu, Kenji Yano, Atsushi Nagata
  • AIR-CONDITIONING APPARATUS AND RAILWAY VEHICLE AIR-CONDITIONING APPARATUS
    Publication number: 20140352338
    Abstract: An air-conditioning apparatus includes a compressor, a four-way valve, expansion means, and an indoor heat exchanger, and further includes a check valve disposed between a discharge side of the compressor and the four-way valve, a first solenoid valve disposed between the expansion means and the indoor heat exchanger, and a controller. Opening and closing of the first solenoid valve are controllable. The controller switches the four-way valve and switches the first solenoid valve between open and closed states. When a heating operation is stopped, the controller switches the four-way valve from connection for the heating operation to connection for a cooling operation, closes the first solenoid valve, and then stops the compressor.
    Type: Application
    Filed: February 2, 2012
    Publication date: December 4, 2014
    Applicant: Mitsubishi Electric Corporation
    Inventors: Junpei Mizobata, Wahei Shingu, Kenji Yano, Atsushi Nagata