Patents by Inventor Shiro Hanao

Shiro Hanao 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 of manufacturing wood based panels
    Patent number: 5705001
    Abstract: Wood fiber, inorganic cellular material, flame retardant and an organic binder for binding these materials, are mixed together and hot press formed to give a wood based panel.The resultant panel has a wood like texture, is light weight, has excellent sound absorption properties, and is semi-incombustible, and has a good insulating property for use as a wall or ceiling material.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: January 6, 1998
    Assignee: Yamaha Corporation
    Inventors: Ritsuo Iwata, Hirotoshi Takahashi, Satoshi Suzuki, Shiro Hanao
  • Wood based panels
    Patent number: 5422170
    Abstract: Wood fiber, inorganic cellular material, flame retardant and an organic binder for binding these materials, are mixed together and hot press formed to give a wood based panel. The resultant panel has a wood like texture, is light weight, has excellent sound absorption properties, and is semi-incombustible, and has a good insulating property for use as a wall or ceiling material.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: June 6, 1995
    Assignee: Yamaha Corporation
    Inventors: Ritsuo Iwata, Hirotoshi Takahashi, Satoshi Suzuki, Shiro Hanao