Patents by Inventor Tamio Sunaga

Tamio Sunaga 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).

  • Liquid compositions of reactive dyestuffs with alkali metal poly(meth)acrylate
    Patent number: 4725285
    Abstract: Liquid compositions having high storage-stability which contain reactive dyestuffs, alkali metal polyacrylates or alkali metal polymethacrylates with number average degree of polymerization not exceeding 1000 and water. The liquid compositions are useful for a dyeing process of cellulose fiber materials.
    Type: Grant
    Filed: June 13, 1986
    Date of Patent: February 16, 1988
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Nobuyuki Yamanaka, Tamio Sunaga