Patents by Inventor Yong Xing Ma

Yong Xing Ma 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).

  • Patent number: 6215264
    Abstract: A power-driven disc storage case comprising an outer casing, a chassis, a rolling top, a plurality of disc brackets, two button switches, a micro high-speed D.C. motor, a transmission with safety protect mechanism, a main switch, and two lamps. Two discs are vertically provided on each of the disc brackets. A rolling top is opened and then the lamps installed inside are turned on so as to illuminate the disc at the front opening. The user can select a disc, press down the button switches (left or right) if it is not the target disc to be chosen by the user. The motor then drives the chain of the brackets to move the discs either left or right. The user does not release the push-button switch until a disc needed has moved to the front opening and takes out the disc.
    Type: Grant
    Filed: January 21, 1999
    Date of Patent: April 10, 2001
    Assignee: Well Mark International Ltd.
    Inventor: Yong Xing Ma