Patents by Inventor Kunio Hiraga

Kunio Hiraga 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).

  • Method of making kenaf pulp
    Patent number: 6179959
    Abstract: A method of making kenaf pulp of the present invention is formed of a first process of cutting at least one of core, rind, root and stalk of kenaf into chips with a predetermined length; a second process of crushing the chips of kenaf by mixing the chips with water in a crushing device; and a third process of boiling the crushed chips with water, so that fibers of kenaf are separated into make the kenaf pulp. Accordingly, the kenaf pulp can be formed without chemical processing.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: January 30, 2001
    Inventors: Yoshiaki Kamano, Kunio Hiraga