Patents by Inventor Shiho Horiuchi

Shiho Horiuchi 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).

  • Fiber capable of forming metal chelate, process for producing the same, method of trapping metal ion with the fiber, and metal chelate fiber
    Patent number: 6875508
    Abstract: A fiber capable of forming a metal chelate and a process for producing the same are disclosed, wherein the fiber is characterized in that at least one metal chelate-forming compound selected from the group consisting of aminodicarboxylic acids, aminocarboxylic acids, thiocarboxylic acids and phosphoric acid, which are reactive with a glycidyl group, is bonded to a molecule of a natural fiber or regenerated fiber through a crosslinkable compound having a reactive double bond and a glycidyl group in its molecule. There are also disclosed a method of capturing metal ions using the fiber and a metal chelate fiber which can effectively make use of the characteristics of the metals and can be easily discarded or incinerated.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: April 5, 2005
    Assignees: Chelest Corporation, Chubu Chelest Co., Ltd.
    Inventors: Nobuyoshi Nambu, Osamu Ito, Shiho Horiuchi, Takao Doi