Patents by Inventor Ton-Chi Chang

Ton-Chi Chang 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).

  • Laminated layers of a substrate, noble metal, and interlayer underneath an oxide superconductor
    Patent number: 4994435
    Abstract: This invention discloses an oxide superconductor shaped body including a noble metal layer formed on at least one surface of an oxide superconductor layer formed on a substrate, and a method of manufacturing oxide superconductor shaped body.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: February 19, 1991
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Shoji Shiga, Masanori Ozaki, Ton-Chi Chang, Nakahiro Harada, Masanao Mimura