Patents by Inventor Kensuke Asakura

Kensuke Asakura 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).

  • Method and device for removing part of concrete structure
    Patent number: 7185954
    Abstract: This invention refers to a method for removing a part of concrete construction that comprises a base concrete; a reinforced concrete formed on the base concrete; rebars embedded in the base concrete and upwardly extending through the reinforced concrete; the method comprising the steps of: forming a slit in the reinforced concrete and disconnections at an intermediate of the rebars; applying an expansion force on opposite surfaces of the slit in the reinforced concrete to simultaneously break a boundary plane of the reinforced concrete; and removing the moved portion of the reinforced concrete from the base concrete as a scrap. Also, the present invention provides a flat jack suitable to break boundary planes of the scrap wherein the flat jack comprises two metallic plates joined to each other, and an inlet for introducing into the jack pressurized fluidic material to inflate the jack in order to produce a great expansive force.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: March 6, 2007
    Inventor: Kensuke Asakura
  • Method and device for removing part of concrete structure
    Publication number: 20040040254
    Abstract: This invention refers to a method for removing a part of concrete construction that comprises a base concrete; a reinforced concrete formed on the base concrete; rebars embedded in the base concrete and upwardly extending through the reinforced concrete; the method comprising the steps of: forming a slit in the reinforced concrete and disconnections at an intermediate of the rebars; applying an expansion force on opposite surfaces of the slit in the reinforced concrete to simultaneously break a boundary plane of the reinforced concrete; and removing the moved portion of the reinforced concrete from the base concrete as a scrap. Also, the present invention provides a flat jack suitable to break boundary planes of the scrap wherein the flat jack comprises two metallic plates joined to each other, and an inlet for introducing into the jack pressurized fluidic material to inflate the jack in order to produce a great expansive force.
    Type: Application
    Filed: March 3, 2003
    Publication date: March 4, 2004
    Inventor: Kensuke Asakura
  • Method and apparatus for the destruction of an upper portion of a structure
    Patent number: 4021638
    Abstract: At least one heat destructive layer is embedded between an upper portion made of concrete and a lower portion made of concrete in a structure at the time of the construction of the upper portion of the structure. The heat destructive layer has at least one heating device and at least one heat destructive part made of plastic material or the like. Electric power is supplied to the heating device at the time of the destruction of the upper portion of the structure, whereby the heat destructive part is to be destroyed and easy destruction of the upper portion of the structure can be obtained.
    Type: Grant
    Filed: September 18, 1975
    Date of Patent: May 3, 1977
    Inventor: Kensuke Asakura