Patents by Inventor Sang B. Lee

Sang B. Lee 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).

  • Belt replacement device
    Patent number: 9718107
    Abstract: A belt replacement device may include: a base portion having a belt placed thereon, the belt being wound in a roll shape; a rotating portion mounted on the base portion, and rotating the belt wound in a roll shape; a transporting portion holding and transporting the belt passed through the rotating portion; a guide portion guiding the belt discharged through the transporting portion; and a loading portion to which the belt dropped from the guide portion is loaded, and the belt replacement device can improve winding workability for the belt.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: August 1, 2017
    Assignee: Hyundai Steel Company
    Inventors: Sung K. Kim, Jong G. Do, Sang B. Lee, Suck Y. Lee
  • BELT REPLACEMENT DEVICE
    Publication number: 20160114369
    Abstract: A belt replacement device may include: a base portion having a belt placed thereon, the belt being wound in a roll shape; a rotating portion mounted on the base portion, and rotating the belt wound in a roll shape; a transporting portion holding and transporting the belt passed through the rotating portion; a guide portion guiding the belt discharged through the transporting portion; and a loading portion to which the belt dropped from the guide portion is loaded, and the belt replacement device can improve winding workability for the belt.
    Type: Application
    Filed: December 27, 2013
    Publication date: April 28, 2016
    Inventors: Sung K. Kim, Jong G. Do, Sang B. Lee, Suck Y. Lee
  • End-to-end joining of nanotubes
    Patent number: 8012278
    Abstract: A method for joining nanotubes end-to-end, includes contacting the nanotubes with a joining fluid. The joining fluid has at least one property that is different from at least one property associated with ends of the nanotubes. In one embodiment, the method further includes contacting the nanotubes with a first, treating fluid and removing the bulk first fluid before the nanotubes are contacted with the joining fluid. The joining fluid is immiscible in the treating fluid to effect end-to-end joining of the nanotubes.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: September 6, 2011
    Assignee: University of Pittsburgh—of the Commonwealth System of Higher Education
    Inventors: Alan J. Russell, Sang B. Lee
  • End-to-end joining of nanotubes
    Publication number: 20100137541
    Abstract: A method for joining nanotubes end-to-end, includes contacting the nanotubes with a joining fluid. The joining fluid has at least one property that is different from at least one property associated with ends of the nanotubes. In one embodiment, the method further includes contacting the nanotubes with a first, treating fluid and removing the bulk first fluid before the nanotubes are contacted with the joining fluid. The joining fluid is immiscible in the treating fluid to effect end-to-end joining of the nanotubes.
    Type: Application
    Filed: April 27, 2007
    Publication date: June 3, 2010
    Inventors: Alan J. Russell, Sang B. Lee
  • Method and system for providing an alternative common channel signaling path
    Patent number: 6301352
    Abstract: A method and system for providing an alternate common channel signaling system path. The alternative signaling path that does not rely on the same hardware or software that is used for a primary signaling path. The alternative signal path allows network devices on a local area network to be signaled when a primary signaling path to the local area network has failed. The alternative signaling paths may provide better fault tolerance for connecting local area networks to other external networks.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: October 9, 2001
    Assignee: 3Com Corporation
    Inventors: Peter S Chung, Sang B. Lee, Thomas B. Gregory