Patents by Inventor Ryuichi Chikamatsu

Ryuichi Chikamatsu 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).

  • Patent number: 7735356
    Abstract: A measuring apparatus of submergence aggregate according to the present invention comprising a stock bin for storing fine aggregate, a fine aggregate feed hopper placed under the stock bin, a vibrating feeder placed under a discharge opening of the fine aggregate feed hopper, a screen device placed in the vicinity of an exit of the vibrating feeder, a measurement tank placed under the screen device, an electrode-type displacement sensor as means for measuring a water level placed above the measurement tank, and load cells as mass measuring means for measuring a mass of the measurement tank.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: June 15, 2010
    Assignee: Obayashi Corporation
    Inventors: Shigeyuki Sogo, Ryuichi Chikamatsu, Koji Watanabe, Hisayoshi Kikkawa
  • Patent number: 7578207
    Abstract: A measuring apparatus of submergence aggregate according to the present invention comprising a stock bin for storing fine aggregate, a fine aggregate feed hopper placed under the stock bin, a vibrating feeder placed under a discharge opening of the fine aggregate feed hopper, a screen device placed in the vicinity of an exit of the vibrating feeder, a measurement tank placed under the screen device, an electrode-type displacement sensor as means for measuring a water level placed above the measurement tank, and load cells as mass measuring means for measuring a mass of the measurement tank.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: August 25, 2009
    Assignee: Obayashi Corporation
    Inventors: Shigeyuki Sogo, Ryuichi Chikamatsu, Koji Watanabe, Hisayoshi Kikkawa
  • Publication number: 20070186697
    Abstract: A measuring apparatus of submergence aggregate according to the present invention comprising a stock bin for storing fine aggregate, a fine aggregate feed hopper placed under the stock bin, a vibrating feeder placed under a discharge opening of the fine aggregate feed hopper, a screen device placed in the vicinity of an exit of the vibrating feeder, a measurement tank placed under the screen device, an electrode-type displacement sensor as means for measuring a water level placed above the measurement tank, and load cells as mass measuring means for measuring a mass of the measurement tank.
    Type: Application
    Filed: February 26, 2007
    Publication date: August 16, 2007
    Inventors: Shigeyuki Sogo, Ryuichi Chikamatsu, Koji Watanabe, Hisayoshi Kikkawa
  • Publication number: 20070163333
    Abstract: A measuring apparatus of submergence aggregate according to the present invention comprising a stock bin for storing fine aggregate, a fine aggregate feed hopper placed under the stock bin, a vibrating feeder placed under a discharge opening of the fine aggregate feed hopper, a screen device placed in the vicinity of an exit of the vibrating feeder, a measurement tank placed under the screen device, an electrode-type displacement sensor as means for measuring a water level placed above the measurement tank, and load cells as mass measuring means for measuring a mass of the measurement tank.
    Type: Application
    Filed: February 26, 2007
    Publication date: July 19, 2007
    Inventors: Shigeyuki Sogo, Ryuichi Chikamatsu, Koji Watanabe, Hisayoshi Kikkawa
  • Patent number: 7207212
    Abstract: A measuring apparatus of submergence aggregate according to the present invention comprising a stock bin for storing fine aggregate, a fine aggregate feed hopper placed under the stock bin, a vibrating feeder placed under a discharge opening of the fine aggregate feed hopper, a screen device placed in the vicinity of an exit of the vibrating feeder, a measurement tank placed under the screen device, an electrode-type displacement sensor as means for measuring a water level placed above the measurement tank, and load cells as mass measuring means for measuring a mass of the measurement tank.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: April 24, 2007
    Assignee: Obayashi Corporation
    Inventors: Shigeyuki Sogo, Ryuichi Chikamatsu, Koji Watanabe, Hisayoshi Kikkawa
  • Patent number: 7000458
    Abstract: A measuring apparatus (1) for concrete materials, comprising an aggregate hopper (3) as aggregate feed means for feeding fine aggregate (2) as aggregate, a water supply pipe (4) as water supply means, an aggregate measuring bin (51) for storing and measuring the fine aggregate (2) supplied from the aggregate hopper (3), a measuring tank (5) for storing the fine aggregate (2) supplied from the aggregate hopper (3) as water-immersed aggregate together with water supplied through the water supply pipe (4), a load cell (6) as water-immersed aggregate mass measuring means for measuring the mass of the water-immersed aggregate in the measuring tank, an electrode sensor (7) as water level measuring means for measuring the water level of the water-immersed aggregate in the measuring tank (5), and a water level holding device (8) as water level holding means for holding the water level of the water-immersed aggregate in the measuring tank (5) at a desired water level.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: February 21, 2006
    Assignee: Obayashi Corporation
    Inventors: Shigeyuki Sogo, Ryuichi Chikamatsu, Koji Watanabe
  • Publication number: 20050073904
    Abstract: A measuring apparatus (1) for concrete materials, comprising an aggregate hopper (3) as aggregate feed means for feeding fine aggregate (2) as aggregate, a water supply pipe (4) as water supply means, an aggregate measuring bin (51) for storing and measuring the fine aggregate (2) supplied from the aggregate hopper (3), a measuring tank (5) for storing the fine aggregate (2) supplied from the aggregate hopper (3) as water-immersed aggregate together with water supplied through the water supply pipe (4), a load cell (6) as water-immersed aggregate mass measuring means for measuring the mass of the water-immersed aggregate in the measuring tank, an electrode sensor (7) as water level measuring means for measuring the water level of the water-immersed aggregate in the measuring tank (5), and a water level holding device (8) as water level holding means for holding the water level of the water-immersed aggregate in the measuring tank (5) at a desired water level.
    Type: Application
    Filed: June 10, 2002
    Publication date: April 7, 2005
    Inventors: Shigeyuki Sogo, Ryuichi Chikamatsu, Koji Watanabe
  • Publication number: 20040133383
    Abstract: A measuring apparatus 1 of submergence aggregate according to the present invention generally comprises a stock bin 2 for storing fine aggregate, a fine aggregate feed hopper 3 placed under the stock bin 2, a vibrating feeder 5 placed under a discharge opening 4 of the fine aggregate feed hopper 3, a screen device 23 placed in the vicinity of an exit of the vibrating feeder 5, a measurement tank 6 placed under the screen device 23, an electrode-type displacement sensor 7 as means for measuring a water level placed above the measurement tank 6, and load cells 8 as mass measuring means for measuring a mass of the measurement tank 6.
    Type: Application
    Filed: February 12, 2004
    Publication date: July 8, 2004
    Inventors: Shigeyuki Sogo, Ryuichi Chikamatsu, Koji Watanabe, Hisayoshi Kikkawa