Patents by Inventor Hironori Wakana

Hironori Wakana 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).

  • High-temperature superconductive film flat surface
    Publication number: 20040029738
    Abstract: A high temperature superconductor film having a smooth surface is constituted from A, B, C, Cu and oxygen in a composition that is represented by the chemical formula AxB(3-x-y)CyCuzO7-d (where x≦0.99, y≦1.99, 2.60≦(x+y)≦2.98, 2.70≦z≦3.30 and (7-d) is a value that satisfies the requirement of valence), when one or more element selected from the group of Gd, Dy, Ho, Er, Tm, Yb, Lu and Y is represented by A, one or more element selected from the group of La, Nd, Sm and Eu is represented by B and Ba1-sSrs (where 0≦s≦0.50) is represented by C.
    Type: Application
    Filed: June 11, 2003
    Publication date: February 12, 2004
    Inventors: Seiji Adachi, Hironori Wakana, Tsyuyoshi Sugano, Keiichi Tanabe
  • Josephson device and fabrication process thereof
    Publication number: 20030186467
    Abstract: A method of fabricating a Josephson device includes the steps of forming a first superconducting layer and forming a second superconducting layer to form a Josephson junction therebetween, wherein the step of forming the second superconducting layer includes the steps of conducting a first step of forming the second superconducting layer with improved uniformity and conducting a second step of forming the second superconducting layer on the second superconducting layer formed in the first step with improved film quality.
    Type: Application
    Filed: March 18, 2003
    Publication date: October 2, 2003
    Applicant: INTERNATIONAL SUPERCONDUCTIVITY TECHNOLOGY CENTER, THE JURIDICAL FOUNDATION
    Inventors: Seiji Adachi, Hironori Wakana, Yoshihiro Ishimaru, Masahiro Horibe, Osami Horibe, Yoshinobu Tarutani, Keiichi Tanabe