Patents by Inventor by Komichi Takada, administrator

by Komichi Takada, administrator 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).

  • Oxide superconductor and method for producing the same
    Patent number: 5670458
    Abstract: An oxide superconductor having a composition of the formula: A.sub.n+1 Cu.sub.n O.sub.2n+1+.delta. in which A is at least one alkaline earth metal element selected from the group consisting of calcium, strontium and barium, n is an integer of at least one, and .delta. is a number larger than 0 and not larger than 1, a laminate structure in which a layer having a partial composition of A.sub.2 O.sub.1+.delta. and a layer having a partial composition of A.sub.n-1 Cu.sub.n O.sub.2n are alternately laminated, and a superconductive critical temperature equal to or higher than the liquid nitrogen temperature.
    Type: Grant
    Filed: February 7, 1996
    Date of Patent: September 23, 1997
    Assignees: Seisan Kaihatsu Kagaku Kenkyusho, NEC Corporation
    Inventors: Mikio Takano, Zenji Hiroi, Yasuo Takeda, Toshio Takada, deceased, by Komichi Takada, administrator, by Jun Takada, administrator, by Kei Takada, administrator