Patents by Inventor Kiyoshi Nihei

Kiyoshi Nihei 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).

  • Neutron shield and cask that uses the neutron shield
    Patent number: 6605817
    Abstract: A neutron shield formed by blending two-part reactive cold-setting epoxy resin consisting of long-chain aliphatic glycidyl ether epoxy resin containing reactive diluent as main component, and a mixture of alicyclic polyamine, polyamide polyamine, aliphatic polyamine and epoxy adduct as hardener of the two-part reactive cold-setting epoxy resin, aluminum hydroxide of high purity with impurity soda content of 0.07% by weight or less, and boron carbide is used as resin of a cask.
    Type: Grant
    Filed: October 12, 2000
    Date of Patent: August 12, 2003
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Kiyoshi Nihei, Kenji Najima