Patents by Inventor Ysuo Hayakawa

Ysuo Hayakawa 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).

  • Soft magnetic alloy and plane magnetic element
    Patent number: 5573863
    Abstract: A soft magnetic alloy film includes: a fine crystalline phase having an average grain size of 10 nm or less and essentially consisting of Fe of b-c-c structure; and an amorphous phase containing a rare earth element or at least one of the elements, Ti, Zr, Hf, V, Nb, Ta and W, and O (oxygen) in a large amount, the fine crystalline phase and amorphous phase existing in a mixed state, with the proportion of the fine crystalline phase of Fe of b-c-c structure to the entire structure being 50% or less. A plane magnetic element employs such a soft magnetic alloy.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: November 12, 1996
    Assignee: Alps Electric Co., Ltd.
    Inventors: Ysuo Hayakawa, Akinori Kojima, Akihiro Makino