Patents by Inventor Yutaka Neichi

Yutaka Neichi 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 recording and reproducing system
    Patent number: 4374403
    Abstract: A magnetic recording and reproducing system having a magnetic switching device of the thin film type which is disposed in a magnetic head and composed of a layer which is made of a magnetic material having a low coercive force and a layer which is made of a magnetic material having a high coercive force both layers are premagnetized by a magnetizing means; the magnetic switching is effected in the magnetic switching device in response to a magnetic recorded signal located on a facing magnetic recording media so that the magnetic switching is detected as a pulse voltage by means of a detecting coil which is wound around the magnetic switching device, so as to thereby generate a reproduced output corresponding to the recorded signal.
    Type: Grant
    Filed: June 24, 1980
    Date of Patent: February 15, 1983
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Mitsuaki Oshima, Yutaka Neichi, Atsushi Iga, Ryoichi Wada