Patents by Inventor You Iwasaki

You Iwasaki 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 thin film
    Patent number: 4748000
    Abstract: Disclosed is a soft magnetic thin film which has superior soft magnetic characteristics and high saturation magnetic flux density. The magnetic thin film is formed by physical vapor deposition process and composed of Fe, Ga, and Si with optional inclusion of Co, Ru, or Cr.
    Type: Grant
    Filed: April 10, 1986
    Date of Patent: May 31, 1988
    Assignee: Sony Corporation
    Inventors: Kazuhiko Hayashi, Masatoshi Hayakawa, Yoshitaka Ochiai, Hideki Matsuda, Wataru Ishikawa, You Iwasaki, Kouichi Aso
  • Magnetic composite film
    Patent number: 4707417
    Abstract: A magnetic alloy thin film consisting essentially of a first Fe-Al-Si or Fe-Ni alloy thin film of high permeability and a second Fe-Si alloy thin film directly formed on the first thin film and having high saturation magnetic flux density. The ratio in thickness of the first and second films is preferably in the range of from 1:0.1 to 2.
    Type: Grant
    Filed: July 16, 1985
    Date of Patent: November 17, 1987
    Assignee: Sony Corporation
    Inventors: Masatoshi Hayakawa, Koichi Aso, Yoshitaka Ochiai, Hideki Matsuda, Kazuhiko Hayashi, Wataru Ishikawa, You Iwasaki
  • Magnetic material having high permeability in the high frequency range
    Patent number: 4640871
    Abstract: A magnetic structure having improved permeability characteristics at very high frequencies and comprising a plurality of magnetic metal layers, together with electrically insulating layers which are interposed between successive magnetic metal layers to form a laminate therewith, and at least one conductive strip electrically connecting together at least two of the magnetic metal layers, the conductive strip being of lesser width than the surface on which it is located, and serving to reduce eddy current losses.
    Type: Grant
    Filed: September 6, 1985
    Date of Patent: February 3, 1987
    Assignee: Sony Corporation
    Inventors: Kazuhiko Hayashi, Yoshitaka Ochiai, Masatoshi Hayakawa, Hideki Matsuda, Wataru Ishikawa, You Iwasaki, Koichi Aso