Patents by Inventor Utako Endo

Utako Endo 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).

  • Bismuth system oxide superconductors and preparation thereof
    Patent number: 5352657
    Abstract: A bismuth system oxide superconductor comprising the 110 K phase is effectively prepared by a process comprising the steps of mixing a bismuth compound, a strontium compound, a calcium compound, a copper compound and optionally a lead compound, optionally provisionally sintering the mixture, and sintering the mixture.
    Type: Grant
    Filed: April 9, 1992
    Date of Patent: October 4, 1994
    Assignee: Daikin Industries Ltd.
    Inventors: Utako Endo, Satoshi Koyama, Kazuo Okamura, Tomoji Kawai, Koichi Kitazawa