Patents by Inventor Minoru Tachiki

Minoru Tachiki 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).

  • Superconductivity in boron-doped diamond thin film
    Patent number: 7976893
    Abstract: A heavily boron-doped diamond thin film having superconductivity is deposited by chemical vapor deposition using gas mixture of at least carbon compound and boron compound, including hydrogen. An advantage of the diamond thin film deposited by the chemical vapor deposition is that it can contain boron at high concentration, especially in (111) oriented films. The boron-doped diamond thin film deposited by the chemical vapor deposition shows the characteristics of typical type II superconductor.
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: July 12, 2011
    Assignee: National Institute for Materials Science
    Inventors: Yoshihiko Takano, Masanori Nagao, Minoru Tachiki, Hiroshi Kawarada, Hitoshi Umezawa, Kensaku Kobayashi
  • Superconductivity in boron-doped diamond thin film
    Publication number: 20060035788
    Abstract: A heavily boron-doped diamond thin film having superconductivity is deposited by chemical vapor deposition using gas mixture of at least carbon compound and boron compound, including hydrogen. An advantage of the diamond thin film deposited by the chemical vapor deposition is that it can contain boron at high concentration, especially in (111) oriented films. The boron-doped diamond thin film deposited by the chemical vapor deposition shows the characteristics of typical type II superconductor.
    Type: Application
    Filed: May 20, 2005
    Publication date: February 16, 2006
    Inventors: Yoshihiko Takano, Masanori Nagao, Minoru Tachiki, Hiroshi Kawarada, Hitoshi Umezawa, Kensaku Kobayashi