Patents by Inventor Seiko Ikoma

Seiko Ikoma 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).

  • Water-disintegrable cleaning sheet
    Patent number: 5281306
    Abstract: A water-disintegrable cleaning sheet comprising a web of water-dispersible fibers having incorporated thereinto a water-soluble binder having a carboxyl group; at least one metallic ion selected from the group consisting of ions of alkaline earth metals, manganese, zinc, cobalt, and nickel; and an aqueous cleaning agent containing an organic solvent, is disclosed. The sheet satisfies both water disintegrability and strength even when cotained a cleaning agent of high water content.
    Type: Grant
    Filed: April 2, 1992
    Date of Patent: January 25, 1994
    Assignee: Kao Corporation
    Inventors: Shusuke Kakiuchi, Makoto Ishii, Atsuo Nakae, Seiko Ikoma
  • Water-disintegratable cleaning article in laminated sheet form
    Patent number: 5264269
    Abstract: A water-disintegrable cleaning article in a laminated sheet form comprising a laminated sheet prepared by sandwiching an inner sheet in between outer sheets, embossing the resultant laminate, and impregnating the embossed laminate with a water-containing cleaning agent. The cleaning article is provided with a difference in the content of a water-soluble binder between both sides of each of the outer sheets, with the side having a higher water-soluble binder content facing the inner sheet on each side thereof.
    Type: Grant
    Filed: August 23, 1990
    Date of Patent: November 23, 1993
    Assignee: Kao Corporation
    Inventors: Shusuke Kakiuchi, Makoto Ishii, Seiko Ikoma, Atsuo Nakae, Seizo Maeshima, Masakazu Furukawa