Patents by Inventor Tetsuro Takamizo

Tetsuro Takamizo 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, heat source unit, and air conditioner updating method
    Patent number: 7788945
    Abstract: An air conditioner is configured by appropriating existing refrigerant pipes of an existing air conditioner to update indoor units and an outdoor unit of a refrigerant circuit of the existing air conditioner. The air conditioner is disposed with an updated refrigerant circuit and a mixer disposed in the updated refrigerant circuit. The updated refrigerant circuit is filled with working refrigerant and refrigerating machine oil that include an acid trapping agent that detoxifies acid components remaining in the refrigerant pipes. The mixer mixes the acid components with the acid trapping agent during refrigeration cycle operation of the updated refrigerant circuit.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: September 7, 2010
    Assignee: Daikin Industries, Ltd.
    Inventors: Kazuhide Mizutani, Akiharu Kojima, Shinya Matsuoka, Tetsuro Takamizo, Satoru Okura
  • Air Conditioner, Heat Source Unit, and Air Conditioner Updating Method
    Publication number: 20080053144
    Abstract: An air conditioner is configured by appropriating, existing refrigerant pipes, of an existing air conditioner to update indoor units and an outdoor unit of a refrigerant circuit of the existing air conditioner. The air conditioner is disposed with an updated refrigerant circuit and a mixer disposed in the updated refrigerant circuit. The updated refrigerant circuit is filled with working refrigerant and refrigerating machine oil that include an acid trapping agent that detoxifies acid components remaining in the refrigerant pipes.
    Type: Application
    Filed: April 26, 2006
    Publication date: March 6, 2008
    Applicant: Daikin Industries, Ltd.
    Inventors: Kazuhide Mizutani, Akiharu Kojima, Shinya Matsuoka, Tetsuro Takamizo, Satoru Okura