Patents by Inventor Noriko Shoyama

Noriko Shoyama 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: 6040035
    Abstract: The present invention provides a water-base ink absorbing material which can quickly absorb a water-base ink and has an excellent fixativity of the drying water-base ink and on which print with a good definition can be achieved without inducing inconsistencies in color density and bleeding of ink.The ink absorbing material is prepared so as to satisfy the following requirements 1 through 3:1 the contact angle measured at ordinary temperature by the liquid drop method using water is 50 degrees or less;2 the wetting index measured in compliance with "Testing method of wettability of polyethylene and polypropylene films" defined by JIS-K-6768 is 40 dyn/cm or more; and3 the water vapor permeability P is 800-20000 g/m.sup.2 /24 h/0.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: March 21, 2000
    Assignee: Bando Chemical Industries, Ltd.
    Inventors: Hiroki Satoh, Yoshio Taguchi, Noriko Shoyama