Patents by Inventor Shigeaki SUYAMA

Shigeaki SUYAMA 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 conditioner
    Patent number: 10495331
    Abstract: An air conditioner includes: an outdoor unit; a plurality of indoor units respectively including indoor heat exchangers; expansion valves respectively provided to the plurality of indoor units, the expansion valves being configured to adjust flow rates of a refrigerant in the indoor heat exchangers; and a controller for executing a refrigerant amount balance control for adjusting opening degrees of the expansion valves so that operation state amounts, with which the indoor heat exchangers exert heat exchange amounts, of the plurality of indoor units become equal to each other.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: December 3, 2019
    Assignee: FUJITSU GENERAL LIMITED
    Inventors: Yasuhiro Oka, Takahiro Matsunaga, Takashi Kimura, Shigeaki Suyama, Kotaro Toya
  • AIR CONDITIONER
    Publication number: 20180010816
    Abstract: An air conditioner includes: an outdoor unit; a plurality of indoor units respectively including indoor heat exchangers; expansion valves respectively provided to the plurality of indoor units, the expansion valves being configured to adjust flow rates of a refrigerant in the indoor heat exchangers; and a controller for executing a refrigerant amount balance control for adjusting opening degrees of the expansion valves so that operation state amounts, with which the indoor heat exchangers exert heat exchange amounts, of the plurality of indoor units become equal to each other.
    Type: Application
    Filed: June 29, 2017
    Publication date: January 11, 2018
    Inventors: Yasuhiro OKA, Takahiro MATSUNAGA, Takashi KIMURA, Shigeaki SUYAMA, Kotaro TOYA