Patents by Inventor Hiroaki Kuroyanagi

Hiroaki Kuroyanagi 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 having a dehumidifying operation function
    Patent number: 5305822
    Abstract: An electric expansion valve is arranged between a first indoor heat exchanger and a second indoor heat exchanger. At a time of cooling operation, the electric expansion valve is fully opened to connect both the indoor heat exchangers to each other. At a time of dehumidifying operation the electric expansion valve is narrowed to apply a pressure reducing action across these indoor heat exchangers so that the first indoor heat exchanger acts as a reheater and the second indoor heat exchanger as an evaporator. The indoor air is cooled and dehumidified by the second heat exchanger and then reheated by the first indoor heat exchanger and blown into the room. At a time of dehumidifying operation, the temperature of the air blown into the room varies by controlling the speed of an outdoor fan.
    Type: Grant
    Filed: June 2, 1993
    Date of Patent: April 26, 1994
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Katsumi Kogetsu, Kanji Takebayashi, Shigeto Sumitani, Hiroaki Kuroyanagi, Takeshi Sato, Naozumi Sukegawa, Hidetoshi Fukunaga