Patents by Inventor Kazuhide Tanaka

Kazuhide Tanaka 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).

  • Ceramic superconductor article
    Patent number: 5063200
    Abstract: The present invention provides a shaped superconductor article such as wire, tape or disk, comprising an oxide superconductor phase and a metal phase in a monolayered or multilayered form, the metal phase comprising a copper, iron, nickel or titanium base alloy containing 1 to 10% by weight of aluminum and having an oxygen-impermeable oxide film formed thereon, preventing the diffusion of oxygen from the oxide superconductor phase to the metal phase.
    Type: Grant
    Filed: August 9, 1988
    Date of Patent: November 5, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Michiya Okada, Tadaoki Morimoto, Akira Okayama, Yoshimi Yanai, Hiroshi Satoh, Toshimi Matsumoto, Yoshiteru Chiba, Kimihiko Akahori, Takahiko Kato, Toshiya Doi, Kazuhide Tanaka
  • Submerging system for marine structure
    Patent number: 3943871
    Abstract: A submerging system for marine structure which comprises a floating capsule structure, sumbersibly anchored by a lever pivoted at one end to the bottom of the floating structure and at its opposite end to a mooring block fixed to the sea bottom, a land based winch being provided for submerging the structure and a cable is connected to the bottom of the capsule structure by way of a pulley supported from the sea bottom.
    Type: Grant
    Filed: March 22, 1974
    Date of Patent: March 16, 1976
    Inventor: Kazuhide Tanaka