Patents by Inventor Hirotosi Takahasi

Hirotosi Takahasi 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).

  • Wood board and a flooring material made therefrom
    Patent number: 5736218
    Abstract: The present invention provides a wood board, and a flooring material using this, which uses thin wooden strands as a raw material, has superior surface smoothness, and possesses sufficient strength and rigidity. The wood board in accordance with the present invention comprises a core layer 1 comprising a strand board, and a surface layer 2 comprising a oriented strand board which is laminated on at least one surface of the core layer 1; the surface layer 2 comprises thin wooden strands which are thinner than the thin wooden strands comprising the core layer, and furthermore, the flooring material of the present invention is obtained by laminating a decorative single sheet onto at least one of the surface layers 2 of the wood board. The wood board and flooring material in accordance with the present invention have high strength and superior surface smoothness.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: April 7, 1998
    Assignee: Yamaha Corporation
    Inventors: Ritsuo Iwata, Satoshi Suzuki, Hirotosi Takahasi, Takayuki Endo
  • Wood board and a flooring material made therefrom
    Patent number: 5506026
    Abstract: The present invention provides a wood board, and a flooring material using this, which uses thin wooden strands as a raw material, has superior surface smoothness, and possesses sufficient strength and rigidity. The wood board in accordance with the present invention comprises a core layer 1 comprising a strand board, and a surface layer 2 comprising a oriented strand board which is laminated on at least one surface of the core layer 1; the surface layer 2 comprises thin wooden strands which are thinner than the thin wooden strands comprising the core layer, and furthermore, the flooring material of the present invention is obtained by laminating a decorative single sheet onto at least one of the surface layers 2 of the wood board. The wood board and flooring material in accordance with the present invention have high strength and superior surface smoothness.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: April 9, 1996
    Assignee: Yamaha Corporation
    Inventors: Ritsuo Iwata, Satoshi Suzuki, Hirotosi Takahasi, Takayuki Endo