Patents by Inventor Tom Yu

Tom Yu 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).

  • Publication number: 20020096427
    Abstract: A PVD system comprises a hollow cathode magnetron with a capability of producing a high magnetic field for PVD and a low magnetic field for pasting. The high magnetic field is used for PVD and causes an optimal uniform film to form on a substrate but redeposits some metals onto a top portion of a target within the magnetron. The low magnetic field erodes redeposited materials from a top portion of a target within the magnetron.
    Type: Application
    Filed: January 23, 2001
    Publication date: July 25, 2002
    Inventors: Jean Qing Lu, Tom Yu, Jeffrey Tobin
  • Publication number: 20020088711
    Abstract: A PVD system comprises a hollow cathode magnetron with a downstream plasma control mechanism. The magnetron has a hollow cathode with a non-planar target and at least one electromagnetic coil to generate and maintain a plasma within the cathode. The magnetron also has an anode located between the cathode and a downstream plasma control mechanism. The control mechanism comprises a first, second and third electromagnetic coil beneath a mouth of the target, vertically spaced so as to form a tapered magnetic convergent lens between the target mouth and a pedestal of the magnetron.
    Type: Application
    Filed: January 9, 2001
    Publication date: July 11, 2002
    Inventors: Jean Qing Lu, Tom Yu, Linda Stenzel, Jeffrey Tobin
  • Patent number: 6362794
    Abstract: An antenna of the wireless LAN card includes a body with an antenna on one side, a connecting base is on one side of the external wireless LAN card, a pivot pin is on top of the connecting base; a cross pivot wraps the pivot pin. The cross pivot composes of a tube with a pintle on both sides. A ball tip is on the bottom of the antenna, a hole is inside the ball tip, a joint hole each is on both sides of the hole. The two pintles of the cross pivot are inserted into the joint hole of the ball tip of the antenna. The structure makes the direction of the antenna of the wireless LAN card adjustable for best signal transmission and receiving result.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: March 26, 2002
    Assignee: GemTek Technology Co., Ltd.
    Inventor: Tom Yu