Patents by Inventor Masateru Nozoki

Masateru Nozoki 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 and apparatus for injecting treating-liquid into wood material and porous inorganic material, and method for destroying ray parenchyma cell walls and aspirated pit pair
    Patent number: 5686146
    Abstract: A method for injecting a treating liquid into a wood or stone material. The liquid is injected in an initial pressure-applying/injecting step in which the wood or stone material is immersed at ambient temperature in a treating liquid under an initial liquid pressure of 1 to 10 kg/cm.sup.2, and maintained at this pressure for a period of time. Subsequently, the pressure is increased to a final pressure having a maximum value of 50 kg/cm.sup.2. Where wood is being treated, the pressure is raised in a plurality of steps of 5 to 10 kg/cm.sup.2 each, followed by a defined holding period. Where stone is being treated, the pressure is increased in a single step. Finally, the treated material is depressurized over a period of at least 20 minutes.
    Type: Grant
    Filed: April 19, 1995
    Date of Patent: November 11, 1997
    Assignee: Sumitomo Corporation
    Inventor: Masateru Nozoki