Patents by Inventor Kazutaka Seo

Kazutaka Seo 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).

  • Displacement sensor and solenoid valve driver
    Patent number: 6916005
    Abstract: A displacement sensor includes a ferromagnetic member for forming a magnetic path, a coil for generating a magnetic field in the magnetic path when fed with a high-frequency current, and a low-resistance magnetic-shielding member that moves across magnetic flux passing through the magnetic path. The sensor is excellent in production is, robust, and useful in high speed operation.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: July 12, 2005
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kazutaka Seo, Masao Morita, Toshie Takeuchi, Yoshiaki Yamazaki, Toshiyuki Yoshizawa, Masafumi Sugawara
  • Displacement sensor and solenoid valve driver
    Publication number: 20040011979
    Abstract: The displacement sensor includes a ferromagnetic member for forming a magnetic path, a coil for generating a magnetic field in the magnetic path when feeding a high-frequency current thereto, and a low-resistance magnetic-shielding member that moves across magnetic flux passing through the magnetic path, which is excellent in production, robust, and adaptable for the high speed operation of devices as well.
    Type: Application
    Filed: April 8, 2003
    Publication date: January 22, 2004
    Inventors: Kazutaka Seo, Masao Morita, Toshie Takeuchi, Yoshiaki Yamazaki, Toshiyuki Yoshizawa, Masafumi Sugawara