Patents by Inventor Shouzou Suefuku

Shouzou Suefuku 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).

  • Pigmenting of cellulose textiles: treatment with cationic compound and immersion in aqueous pigment dispersion
    Patent number: 5252103
    Abstract: An improved pigmented product is obtained by a pigmenting method comprising the steps of:treating a cellulose fiber textile product with a cationic compound; andtreating the thus-treated textile product by immersing it in a aqueous dispersion containing a pigment and an anionic compound.
    Type: Grant
    Filed: February 5, 1992
    Date of Patent: October 12, 1993
    Assignee: Matsui Shikiso Chemical Co, Ltd.
    Inventors: Masayasu Kamata, Osamu Sasaki, Shouzou Suefuku, Tatsuya Maeda
  • Thermochromic dyeing method and cellulose product dyed thereby
    Patent number: 5221288
    Abstract: A dyeing method comprising a process of treating a cellulose fiber textile product with cationic compound and another process of treating the thus-treated textile product by immersing it in a dispersion containing thermochromic material and/or photochromic material.
    Type: Grant
    Filed: March 15, 1991
    Date of Patent: June 22, 1993
    Assignee: Matsui Shikiso Chemical Co., Ltd.
    Inventors: Kazumasa Kamada, Osamu Sasaki, Shouzou Suefuku, Tatsuya Maeda