Patents by Inventor Takeshi Nekota

Takeshi Nekota 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 cement board and a manufacturing method thereof
    Patent number: 5945044
    Abstract: A wood cement board substantially consisting of reinforcing wood material and a cement wherein said reinforcing wood material is treated by a method comprising attaching an aqueous solution of a mineral acid and adding and mixing an alkaline metal silicate in said reinforcing wood material to prevent the inhibition of hardening of cement by sugar contained said reinforcing wood material is provided in the present invention. According to the present invention, a wood cement board having a high strength is constantly manufactured by using reinforcing wood material made from wood having a big amount of sugar as an inhibiter of hardening of cement such that reinforcing wood material regenerated from wood scrap can be used in wood cement board without any problem.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: August 31, 1999
    Assignee: Nichiha Corporation
    Inventors: Hidenori Kawai, Takeshi Nekota