Patents by Inventor Tadashi Tatsuki

Tadashi Tatsuki 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).

  • Rock-salt/infinite layer chlorine-containing oxide superconductor and manufacturing method of the same
    Patent number: 5716907
    Abstract: The present invention is an oxide superconductor containing alkaline earth metal M (where M is at least one element of Ba, Sr, and Ca) and having a crystalline structure in which a portion based on two rock-salt structures including the alkaline earth metal M, oxygen, and chlorine, and a 2n-1 piece of infinite layer structure portion are alternately layered on each other, said 2n-1 piece of infinite layer structure portion having an atom layer including copper atoms and oxygen atoms in a ratio of 1 to 2 and of an atom layer including only M atoms layered on each other (where n is an integer of 1 or more and where copper atoms and oxygen atom are contained in a ratio of 1 to 2 if n is 1).
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: February 10, 1998
    Assignees: International Superconductivity Technology Center, The Furukawa Electric Co., Ltd., Tohoku Electric Power
    Inventors: Tadashi Tatsuki, Seiji Adachi, Makoto Itoh, Toshiyuki Tamura, Changqin Jin, Xiao-Jing Wu, Hisao Yamauchi