Patents by Inventor Sotaro Sasano

Sotaro Sasano 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).

  • Patent number: 6387304
    Abstract: A method for producing artificial marble having a stripe pattern comprising injecting liquid resins having different colors into a molding cell so that they are laminated to form two or more layers; then moving a comb-like tool through the laminated liquid resins while allowing the teeth to contact the bottom surface of the molding cell, then curing the liquid resins to form artificial marble, wherein, the comb-like tool is allowed to move through the liquid resins while the interval between teeth of the comb-like tool is allowed to vary. Artificial marble can be produced having a natural marble-like appearance in which the interval of stripe varies in a natural fashion or having a radial cut moire stripe pattern.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: May 14, 2002
    Assignee: Du Pont-MRC Co., Ltd.
    Inventors: Nobuhiro Mukai, Masaaki Shibazaki, Sotaro Sasano
  • Publication number: 20020011686
    Abstract: A method for producing artificial marble having a stripe pattern comprising injecting liquid resins having different colors into a molding cell so that they are laminated to form two or more layers, then moving a comb-like tool through the laminated liquid resins while allowing the teeth to contact the bottom surface of the molding cell, then curing the liquid resins to form artificial marble, wherein, the comb-like tool is allowed to move through the liquid resins while the interval between teeth of the comb-like tool is allowed to vary. Artificial marble can be produced having a natural marble-like appearance in which the interval of stripe varies in a natural fashion or having a radial cut moire stripe pattern.
    Type: Application
    Filed: November 22, 1999
    Publication date: January 31, 2002
    Inventors: NOBUHIRO MUKAI, MASAAKI SHIBAZAKI, SOTARO SASANO