Patents by Inventor Hiroshi Kimira

Hiroshi Kimira 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).

  • Magnetic alloy
    Patent number: 4299622
    Abstract: A magnetic alloy which contains not less than 0.03 weight % but not more than 5.0 weight % of P not less than 3.0 weight % but not more than 26.0 weight % of Al and Si totally (where Al is not less than 0.01 weight % but not more than 13.0 weight % and Si is not less than 0.01 weight % but not more than 13.0 weight %), the remaining part of the alloy consists mainly of Fe and the alloy is characterized in that P is presented on the grain boundary thereof with the amount more than 0.5 weight % of the atoms which form said grain boundary.
    Type: Grant
    Filed: November 5, 1979
    Date of Patent: November 10, 1981
    Assignee: Sony Corporation
    Inventors: Hiroshi Kimira, Kenji Abiko, Takashi Sato, Isamu Yoshii, Sadao Watanabe, Yutaka Takei