Patents by Inventor Yukimichi Nako

Yukimichi Nako 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).

  • Method for production of colored macromolecular polymer
    Patent number: 4981886
    Abstract: A colored macromolecular polymer is produced by a method which comprises dissolving a soluble salt of a noble metal in a liquid monomer, polymerizing the monomer having the soluble salt of the noble metal dissolved therein, and subjecting the resultant solid polymer to a heat treatment at a temperature equal to or exceeding the colloid-forming temperature of the noble metal.
    Type: Grant
    Filed: October 26, 1988
    Date of Patent: January 1, 1991
    Assignees: Agency of Industrial Science Technology, Ministry of International Trade & Industry
    Inventors: Yukimichi Nako, Kyoji Kaeriyama, Aizo Yamauchi