Patents by Inventor Kazuhiro Onaka

Kazuhiro Onaka 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).

  • Direction sensor and its production method
    Publication number: 20040248327
    Abstract: A direction sensor has a first and a second bridge circuits; each circuit including at least two detecting elements formed on a main surface of a substrate and connected in series and their longitudinal directions are crossing each other. The sensor has also a first and a second magnetic bias application parts respectively facing toward the first and the second bridge circuits. Directions of magnetic field of the magnetic bias application parts are different with each other. The direction sensor does not require a holder or a coil; therewith miniaturization of the sensor is feasible.
    Type: Application
    Filed: June 23, 2004
    Publication date: December 9, 2004
    Inventor: Kazuhiro Onaka
  • Artificial latticed multi-layer film deposition apparatus
    Patent number: 6270633
    Abstract: The present invention relates to an artificial latticed multi-layer film deposition apparatus for depositing on a substrate a gigantic magneto-resistive effect film (GMR film) having an artificial lattice structure formed of magnetic metal films and non-magnetic metal films alternately laminated one over the other and its object is to provide the artificial latticed multi-layer film deposition apparatus to enable easy and secure deposition of an artificial latticed multi-layer film having GMR characteristics.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: August 7, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuhiro Onaka, Sumio Maekawa, Shigeru Yamamoto, Masafumi Okamoto