Patents by Inventor Haruyuki HIRASAWA

Haruyuki HIRASAWA 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 ventilation system
    Patent number: 10208976
    Abstract: An air-conditioning ventilation system of the present invention includes one or a plurality of air circulation devices configured to circulate air among a plurality of rooms, one or a plurality of air-conditioning apparatuses provided in at least one of the plurality of rooms, a human detector provided in each of the plurality of rooms and configured to detect a human present in a corresponding one of the rooms in which the human detector is provided, an optimal air-conditioning ventilation operation estimating unit configured to estimate presence or absence of any human in each of the plurality of rooms, or a human presence ratio representing a number of humans present per unit time in each of the plurality of rooms, on a basis of a past result of detection by the human detector, and a controller configured to control the air circulation device and the air-conditioning apparatus on a basis of a result of estimation by the optimal air-conditioning ventilation operation estimating unit.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: February 19, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masaki Toyoshima, Emi Takeda, Shinichi Ito, Toshiaki Yoshikawa, Haruyuki Hirasawa, Atsushi Shinno, Hiroki Aoki
  • AIR-CONDITIONING VENTILATION SYSTEM
    Publication number: 20170051937
    Abstract: An air-conditioning ventilation system of the present invention includes one or a plurality of air circulation devices configured to circulate air among a plurality of rooms, one or a plurality of air-conditioning apparatuses provided in at least one of the plurality of rooms, a human detector provided in each of the plurality of rooms and configured to detect a human present in a corresponding one of the rooms in which the human detector is provided, an optimal air-conditioning ventilation operation estimating unit configured to estimate presence or absence of any human in each of the plurality of rooms, or a human presence ratio representing a number of humans present per unit time in each of the plurality of rooms, on a basis of a past result of detection by the human detector, and a controller configured to control the air circulation device and the air-conditioning apparatus on a basis of a result of estimation by the optimal air-conditioning ventilation operation estimating unit.
    Type: Application
    Filed: May 9, 2014
    Publication date: February 23, 2017
    Inventors: Masaki TOYOSHIMA, Emi TAKEDA, Shinichi ITO, Toshiaki YOSHIKAWA, Haruyuki HIRASAWA, Atsushi SHINNO, Hiroki AOKI