Patents by Inventor Rika Iwamura

Rika Iwamura 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).

  • Hydrogelation agents
    Patent number: 7202228
    Abstract: A gelatinizer is provided having a component which promises to have biological compatibility, which can easily be mass-produced by a simple method, and which can solidify a large amount of water or aqueous solution when only a very small weight of it is used. This invention is a hydrogelatinizer represented by the general formula: R-An where A, which may be identical or different, are respectively nucleotides, n is 2 or 3, and R is a hydrocarbon chain (when n is 2, R is bivalent, and when n is 3, R is trivalent), said hydrocarbon being bonded to a phosphoric acid part of said nucleotides.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: April 10, 2007
    Assignees: Japan Science and Technology Agency, National Institute of Advance Industrial Science and Technology
    Inventors: Toshimi Shimizu, Rika Iwamura, Mitsutoshi Masuda
  • Hydrogelation agents
    Publication number: 20040043951
    Abstract: A gelatinizer is provided having a component which promises to have biological compatibility, which can easily be mass-produced by a simple method, and which can solidify a large amount of water or aqueous solution when only a very small weight of it is used.
    Type: Application
    Filed: April 30, 2003
    Publication date: March 4, 2004
    Inventors: Toshimi Shimizu, Rika Iwamura, Mitsutoshi Masuda