Patents by Inventor Syuhei Hashizume

Syuhei Hashizume 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).

  • Granular type reactive dye compositions and methods for dyeing and printing cellulose fibers using the same
    Patent number: 5259850
    Abstract: A granular type reactive dye composition containing a reactive dye, an inorganic salt and water, the water content being from 4.5 through 15% by weight and the inorganic salt content being 20% by weight or less, both based on the weight of the composition, which is excellent in storage stability, compatibility with water and hot water, and reproducibility, when used for dyeing or printing cellulose fibers.
    Type: Grant
    Filed: August 16, 1991
    Date of Patent: November 9, 1993
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Naoki Harada, Noriaki Yamauchi, Syuhei Hashizume, Yutaka Kayane, Kazumi Yoshigoe, Isao Nakamae