Patents by Inventor Taku Hirakawa

Taku Hirakawa 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).

  • Particulate material processing apparatus and particulate material processing system
    Patent number: 8157899
    Abstract: A particulate material processing apparatus has a vessel and a processing tank. The vessel has a charging port for charging a particulate material into the vessel. The processing tank receives the particulate material charged from the charging port. The processing tank is shaped so as to narrow towards the bottom. At least the lower part of the processing tank is made of a gas-permeable material that allows the process gas for processing the particulate material to pass through. The upper part of the processing tank has lower gas permeability than the lower part of the processing tank.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: April 17, 2012
    Assignee: Daikin Industries, Ltd.
    Inventors: Tomohiro Isogai, Katsuya Nakai, Tatsuo Suzuki, Taku Hirakawa, Hiroyuki Shimada
  • Particulate material processing apparatus and particulate material processing system
    Patent number: 8007736
    Abstract: A particulate material processing apparatus has a vessel, a processing tank, and a dispersing member. The vessel has a charging port for charging a particulate material into the vessel. The processing tank receives the particulate material charged from the charging port. The processing tank is shaped so as to narrow towards the bottom. At least the lower part of the processing tank is made of a gas-permeable material that allows the process gas for processing the particulate material to pass through. The dispersing member is disposed below the charging port. The dispersing member disperses and flattens the particulate material on the processing tank.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: August 30, 2011
    Assignee: Daikin Industries, Ltd.
    Inventors: Taku Hirakawa, Tomohiro Isogai, Katsuya Nakai, Tatsuo Suzuki, Hiroyuki Shimada
  • PARTICULATE MATERIAL PROCESSING APPARATUS AND PARTICULATE MATERIAL PROCESSING SYSTEM
    Publication number: 20090126571
    Abstract: A particulate material processing apparatus has a vessel and a processing tank. The vessel has a charging port for charging a particulate material into the vessel. The processing tank receives the particulate material charged from the charging port. The processing tank is shaped so as to narrow towards the bottom. At least the lower part of the processing tank is made of a gas-permeable material that allows the process gas for processing the particulate material to pass through. The upper part of the processing tank has lower gas permeability than the lower part of the processing tank.
    Type: Application
    Filed: November 14, 2008
    Publication date: May 21, 2009
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomohiro Isogai, Katsuya Nakai, Tatsuo Suzuki, Taku Hirakawa, Hiroyuki Shimada
  • PARTICULATE MATERIAL PROCESSING APPARATUS AND PARTICULATE MATERIAL PROCESSING SYSTEM
    Publication number: 20090126217
    Abstract: A particulate material processing apparatus has a vessel, a processing tank, and a dispersing member. The vessel has a charging port for charging a particulate material into the vessel. The processing tank receives the particulate material charged from the charging port. The processing tank is shaped so as to narrow towards the bottom. At least the lower part of the processing tank is made of a gas-permeable material that allows the process gas for processing the particulate material to pass through. The dispersing member is disposed below the charging port. The dispersing member disperses and flattens the particulate material on the processing tank.
    Type: Application
    Filed: November 17, 2008
    Publication date: May 21, 2009
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Taku Hirakawa, Tomohiro Isogai, Katsuya Nakai, Tatsuo Suzuki, Hiroyuki Shimada