Patents by Inventor Jyunya Tanaka

Jyunya Tanaka 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: 6276149
    Abstract: In an air conditioner having a refrigerant circuit in which a compressor, a four-way switching valve, an outdoor-side heat exchanger, an expansion valve, and an indoor-side heat exchanger are connected in succession via pipes, the interior of an enclosed vessel of a compressor, which contains a refrigerant compressing section and an electric motor, is divided airtightly into a refrigerant discharge chamber and an electric motor chamber, two refrigerant flow path pipes are provided on the electric motor chamber side, and these refrigerant flow path pipes are appropriately switched to the refrigerant discharge side and the refrigerant suction side of the compressor via the four-way switching valve, whereby one compressor can be used as an internal high pressure type or an internal low pressure type.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: August 21, 2001
    Assignee: Fujitsu General Limited
    Inventors: Masashi Katayama, Makoto Araki, Masaki Fujino, Jyunya Tanaka, Motonobu Furukawa, Akira Shimada, Shuji Takeda, Hiroki Tomoda, Mitsuru Shiraishi, Keiichi Nakamura, Takefumi Inagaki
  • Air conditioner
    Publication number: 20010001923
    Abstract: In an air conditioner having a refrigerant circuit in which a compressor, a four-way switching valve, an outdoor-side heat exchanger, an expansion valve, and an indoor-side heat exchanger are connected in succession via pipes, the interior of an enclosed vessel of a compressor, which contains a refrigerant compressing section and an electric motor, is divided airtightly into a refrigerant discharge chamber and an electric motor chamber, two refrigerant flow path pipes are provided on the electric motor chamber side, and these refrigerant flow path pipes are appropriately switched to the refrigerant discharge side and the refrigerant suction side of the compressor via the four-way switching valve, whereby one compressor can be used as an internal high pressure type or an internal low pressure type.
    Type: Application
    Filed: January 24, 2001
    Publication date: May 31, 2001
    Inventors: Masashi Katayama, Makoto Araki, Masaki Fujino, Jyunya Tanaka, Motonobu Furukawa, Akira Shimada, Shuji Takeda, Hiroki Tomoda, Mitsuru Shiraishi, Keiichi Nakamura, Takefumi Inagaki
  • Air conditioner
    Patent number: 6202428
    Abstract: In an air conditioner having a refrigerant circuit in which a compressor, a four-way switching valve, an outdoor-side heat exchanger, an expansion valve, and an indoor-side heat exchanger are connected in succession via pipes, the interior of an enclosed vessel of a compressor, which contains a refrigerant compressing section and an electric motor, is divided airtightly into a refrigerant discharge chamber and an electric motor chamber, two refrigerant flow path pipes are provided on the electric motor chamber side, and these refrigerant flow path pipes are appropriately switched to the refrigerant discharge side and the refrigerant suction side of the compressor via the four-way switching valve, whereby one compressor can be used as an internal high pressure type or an internal low pressure type.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: March 20, 2001
    Assignee: Fujitsu General Limited
    Inventors: Masashi Katayama, Makoto Araki, Masaki Fujino, Jyunya Tanaka, Motonobu Furukawa, Akira Shimada, Shuji Takeda, Hiroki Tomoda, Mitsuru Shiraishi, Keiichi Nakamura, Takefumi Inagaki