Patents by Inventor Juguo Xu

Juguo Xu 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).

  • Suspension having magnetic head assembly mounted thereon and magnetic recording disk drive using the suspension
    Patent number: 7667921
    Abstract: A suspension having a magnetic head assembly 1 mounted thereon is provided, wherein the magnetic head assembly comprises: a write head 1-2; a read head 1-1; and a resistive heating element 1-3 for controlling the flying heights of the magnetic heads, wherein the wires HTx and GTx for the resistive heating element is disposed such that they sandwich the wires RxX and RxY for the read head. The wires for the resistive heating element may be disposed between the wires for the write head and the wires for the read head. Furthermore, the waveform of the current or voltage to the resistive heating element has a time constant of 1 ?sec or more, the resistive heating element having wires disposed near the wires of the read head.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: February 23, 2010
    Assignee: Hitachi Global Storage Technologies Japan, Ltd.
    Inventors: Naoki Satoh, Masayuki Kurita, Mikio Tokuyama, Juguo Xu