Patents by Inventor Koutaro Tohyama

Koutaro Tohyama 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 for removing asphalt pavement and system for removing asphalt pavement
    Patent number: 8834063
    Abstract: It is intended to allow an asphalt pavement to be peeled off efficiently with a relatively small amount of electric power without generating large vibration and noise, and handled in the form of a block. An electromagnetic induction coil 36 is positioned above an asphalt pavement 22 provided on a copper plate (12) to melt a lower surface of the asphalt pavement 22. Then, a wedge-shaped thermally-conductive peeling member 60 having a peeling layer formed on an upper surface thereof is inserted into a melted layer (74) of the lower surface of the asphalt pavement 22 to peel off the asphalt pavement 22 from the steel plate 12. This makes it possible to peel off the asphalt pavement 22 with a relatively small amount of electric power and handle the peeled asphalt pavement 22 in the form of a block.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: September 16, 2014
    Assignee: Green Arm Co., Ltd.
    Inventors: Kenichi Harakawa, Hidetoshi Hayashida, Seiichi Takeuchi, Koutaro Tohyama, Shinsuke Wakabayashi
  • Method for Removing Asphalt Pavement, System for Removing Asphalt Pavement, Electromagnetic Induction Coil Unit, Apparatus for Removing Asphalt Pavement, and Method for Peeling off Asphalt Pavement
    Publication number: 20090297268
    Abstract: It is intended to allow an asphalt pavement to be peeled off efficiently with a relatively small amount of electric power without generating large vibration and noise, and handled in the form of a block. An electromagnetic induction coil 36 is positioned above an asphalt pavement 22 provided on a copper plate (12) to melt a lower surface of the asphalt pavement 22. Then, a wedge-shaped thermally-conductive peeling member 60 having a peeling layer formed on an upper surface thereof is inserted into a melted layer (74) of the lower surface of the asphalt pavement 22 to peel off the asphalt pavement 22 from the steel plate 12. This makes it possible to peel off the asphalt pavement 22 with a relatively small amount of electric power and handle the peeled asphalt pavement 22 in the form of a block.
    Type: Application
    Filed: March 28, 2007
    Publication date: December 3, 2009
    Applicant: Green Arm Co., Ltd.
    Inventors: Kenichi Harakawa, Hidetoshi Hayashida, Seiichi Takeuchi, Koutaro Tohyama, Shinsuke Wakabayashi