Patents by Inventor Sang-Yop Nam

Sang-Yop Nam 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).

  • Multiprocessor system for hydraulic excavator
    Patent number: 5347448
    Abstract: A multiprocessor system for an excavator is disclosed. The multiprocessor system has a joy stick which controls each of cylinders for a bucket, a dipper, a boom, a swing and/or traveling parts of the excavator and adjusts engine, pump and hydraulic valves by using microprocessors. As a result, performance and function of the excavator are improved.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: September 13, 1994
    Assignee: Samsung Heavy Industries Co., Ltd.
    Inventor: Sang-Yop Nam