Patents by Inventor Tersuro Muramatsu

Tersuro Muramatsu 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).

  • Production method of a high magnetic permeability alloy film
    Patent number: 4702935
    Abstract: A production method for producing a high permeability alloy film which includes evaporating an alloy material composed of 1-6 wt % Al, 20-35 wt % Si, and the remainder of iron by irradiating the alloy with an electron beam, and then depositing the vapor from the alloy material onto a substrate for a predetermined time to produce an alloy film composition having a high permeability. The vapor deposition onto the substrate is preferably intercepted with the shutter until the concentration of aluminum of the vapor to be deposited has been decreased to a value between 20 and about 4 wt %.
    Type: Grant
    Filed: October 22, 1984
    Date of Patent: October 27, 1987
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masaru Kadono, Kumio Nago, Tatsushi Yamamoto, Tersuro Muramatsu, Shuuhei Tsuchimoto, Mitsuhiko Yoshikawa, Masatoshi Tomita