Patents by Inventor Kaoru Takeda

Kaoru Takeda 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).

  • Patent number: 6610632
    Abstract: The present invention provides a tape-form oxide superconductor having a high degree of c-axis alignment and in-plane alignment and an improved Jc value. On a tape-form metal substrate which is non-magnetic or weakly magnetic and has high strength, there are sequentially formed a first intermediate layer wherein YSZ or Zr2Rx2O7 particles are deposited from a target with ion irradiation from a direction inclined to the metal substrate, a second intermediate layer of CeO2 or Y2O3 is formed and an RE1+XBa2−XCu3OY superconducting layer is formed by coating metalorganic salts containing F, followed by thermal decomposition.
    Type: Grant
    Filed: October 12, 2001
    Date of Patent: August 26, 2003
    Assignees: International Superconductivity Technology Center, The Juridicial Foundation, Showa Electric Wire & Cable Co., Ltd., Fujikura Ltd., Railway Technical Research Institute, Kabushiki Kaisha Toshiba
    Inventors: Tetsuji Honjo, Hiroshi Fuji, Yuichi Nakamura, Teruo Izumi, Takeshi Araki, Yutaka Yamada, Izumi Hirabayashi, Yuh Shiohara, Yasuhiro Iijima, Kaoru Takeda
  • Publication number: 20020076567
    Abstract: The present invention provides a tape-formed oxide superconductor having high c-axis alignment and in-plane alignment and an improved Jc value. Thus, on a tape-formed metal substrate of non-magnetism or weak magnetism and high strength, there are sequentially formed a first intermediate layer where YSZ or Zr2Rx2O7 particles generated from the target are deposited onto the metal substrate together with irradiation of ion from an inclined direction to the metal substrate, a second intermediate layer comprising CeO2 or Y2O3 and an RE1+XBa2−XCu3OY superconducting layer formed by coating of metalorganic salts containing F followed by subjecting to a thermal decomposition.
    Type: Application
    Filed: October 12, 2001
    Publication date: June 20, 2002
    Inventors: Tetsuji Honjo, Hiroshi Fuji, Yuichi Nakamura, Teruo Izumi, Takeshi Araki, Yutaka Yamada, Izumi Hirabayashi, Yuh Shiohara, Yasuhiro Iijima, Kaoru Takeda
  • Patent number: 5723366
    Abstract: A dry etching method includes the steps of etching a transparent electrode film by reactive ion etching with a first etching gas, changing the first etching gas to a second etching gas, and etching the transparent electrode film by reactive ion etching with the second etching gas. A chlorine containing gas is employed as the second etching gas.
    Type: Grant
    Filed: September 28, 1995
    Date of Patent: March 3, 1998
    Assignee: Sanyo Electric Co. Ltd.
    Inventors: Koji Suzuki, Kaoru Takeda, Yoshihiro Morimoto, Kiyoshi Yoneda
  • Patent number: 5610599
    Abstract: A system for traffic signals for one-side passing, which realizes efficient traffic control during abnormal operation of detectors or the night with little traffic density. Traffic signals 6 and 7 are provided with detectors 8 and 9 for detection of passing of vehicles respectively. Both traffic signals repeat traffic lighting in a cycled manner such as green-red, red-red, red-green and red-red by a sensitive controller 10. Owing to an ill-detection switching device 71, if there is no detection signal input by the detector of one traffic signal within a switch holding time after detection signal is input by the detector of the other traffic signal, the green lighting of one traffic signal will be shifted to a fixed-cycle operation until detection signal input by the detector. The traffic signal shifted to the fixed-cycle operation will be restored to the sensitive operation if the detection signal is input by the detector.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: March 11, 1997
    Assignee: Nihon Samicon Co. Ltd.
    Inventors: Toshimitsu Nomura, Akira Sato, Minoru Ishizaki, Kaoru Takeda, Kazuhiko Yasui