Patents by Inventor Ishikawa Hiroki

Ishikawa Hiroki 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).

  • Deodorant resin composition and process for production thereof
    Patent number: 5980879
    Abstract: A particulate deodorant resin composition comprising a water-absorbent resin and powdery zeolite dispersed within the resin particles. The composition exhibits the effect of deodorizing the absorbed body fluid while retaining the water-absorbent function inherent in water-absorbent resins. When, therefore, used as sanitary materials such as paper diaper or sanitary goods, it is featured by not only the inherent absorbent effect, but also the deodorant effect.
    Type: Grant
    Filed: August 19, 1997
    Date of Patent: November 9, 1999
    Assignee: Uni-Charm Corporation
    Inventors: Ishikawa Hiroki, Norihiko Ishikawa, Naoki Ohba, Shingo Mukaida, Takeru Mori, Kenji Tanaka