Patents by Inventor Kunihiko Oshizaki

Kunihiko Oshizaki 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).

  • PROCESS FOR PRODUCING WATER-ABSORBING RESIN
    Publication number: 20110003926
    Abstract: In obtaining a water-absorbing resin with high property in high productivity, produced a production method for a water-absorbing resin in high property and stably. Provided is a production method for a water-absorbing resin, comprising: a step for polymerizing an acrylic acid aqueous solution; a step for drying the resultant water-containing gel; a step for pulverizing and classifying the dried substance; and a step for surface cross-linking after classification, wherein a hopper having an inclination angle of a cone part of equal to or larger than 45 degree, and a drawing rate of 30 to 80% is used.
    Type: Application
    Filed: March 13, 2009
    Publication date: January 6, 2011
    Applicant: Nippon Shokubal Co., Ltd.
    Inventors: Kozo Nogi, Kunihiko Oshizaki, Koji Matsumoto