Patents by Inventor Sachio Ohwada

Sachio Ohwada 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 shutter and installation method thereof
    Patent number: 7544122
    Abstract: An air shutter of low cost, high efficiency, and easy maintainability is provided, which can interrupt efficiently the flowage of air across a doorway when the door is open based on the consideration of the experimental data of the flowage of air across the opening area of the doorway of a cold storage. The air shutter comprises a gatepost 12 and a gatepost 13 installed at both sides of the opening area of a doorway. The gatepost 12 is provided with a lower slit nozzle 12a, a suction opening 12b, and lower fans 12c and a suction duct 12d inside thereof, on the other hand, the gatepost 13 provided with an upper slit nozzle 13a, a suction opening 13b, and lower fans 13c and a suction duct 13d inside thereof.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: June 9, 2009
    Assignee: Mayekawa Mfg. Co., Ltd.
    Inventors: Sachio Ohwada, Kouichi Tsubata, Seiichi Sakuma, Shinjirou Akaboshi, Akira Yasutome
  • Air shutter and installation method thereof
    Publication number: 20060199500
    Abstract: An air shutter of low cost, high efficiency, and easy maintainability is provided, which can interrupt efficiently the flowage of air across a doorway when the door is open based on the consideration of the experimental data of the flowage of air across the opening area of the doorway of a cold storage. The air shutter comprises a gatepost 12 and a gatepost 13 installed at both sides of the opening area of a doorway. The gatepost 12 is provided with a lower slit nozzle 12a, a suction opening 12b, and lower fans 12c and a suction duct 12d inside thereof, on the other hand, the gatepost 13 provided with an upper slit nozzle 13a, a suction opening 13b, and lower fans 13c and a suction duct 13d inside thereof.
    Type: Application
    Filed: April 5, 2006
    Publication date: September 7, 2006
    Applicant: MAYEKAWA MFG. CO., LTD.
    Inventors: Sachio Ohwada, Kouichi Tsubata, Seiichi Sakuma, Shinjirou Akaboshi, Akira Yasutome
  • Air shutter and installation method thereof
    Patent number: 7037189
    Abstract: An air shutter of low cost, high efficiency, and easy maintainability is provided, which can interrupt efficiently the flowage of air across a doorway when the door is open based on the consideration of the experimental data of the flowage of air across the opening area of the doorway of a cold storage. The air shutter comprises a gatepost 12 and a gatepost 13 installed at both sides of the opening area of a doorway. The gatepost 12 is provided with a lower slit nozzle 12a, a suction opening 12b, and lower fans 12c and a suction duct 12d inside thereof, on the other hand, the gatepost 13 provided with an upper slit nozzle 13a, a suction opening 13b, and lower fans 13c and a suction duct 13d inside thereof.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: May 2, 2006
    Assignee: Mayekawa Mfg. Co., Ltd.
    Inventors: Sachio Ohwada, Kouichi Tsubata, Seiichi Sakuma, Shinjirou Akaboshi, Akira Yasutome
  • Air shutter and installation method thereof
    Publication number: 20040242145
    Abstract: An air shutter of low cost, high efficiency, and easy maintainability is provided, which can interrupt efficiently the flowage of air across a doorway when the door is open based on the consideration of the experimental data of the flowage of air across the opening area of the doorway of a cold storage. The air shutter comprises a gatepost 12 and a gatepost 13 installed at both sides of the opening area of a doorway. The gatepost 12 is provided with a lower slit nozzle 12a, a suction opening 12b, and lower fans 12c and a suction duct 12d inside thereof, on the other hand, the gatepost 13 provided with an upper slit nozzle 13a, a suction opening 13b, and lower fans 13c and a suction duct 13d inside thereof.
    Type: Application
    Filed: December 12, 2003
    Publication date: December 2, 2004
    Applicant: Mayekawa Mfg. Co., Ltd.
    Inventors: Sachio Ohwada, Kouichi Tsubata, Seiichi Sakuma, Shinjirou Akaboshi, Akira Yasutome