Patents by Inventor Jeongsik Sin

Jeongsik Sin 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).

  • Devices in miniature for interferometric use and fabrication thereof
    Patent number: 7710574
    Abstract: A device in miniature and fabrication of such a device for interferometric use is described, the device including a substrate with at least one deep reactive ion etching structure on at least one surface of the substrate forming an optical bench. The optical bench preferably comprises a moving stage, an actuator, one or more connector sockets and one or more optical components.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: May 4, 2010
    Assignee: Board of Regents, The University of Texas System
    Inventors: Jeongsik Sin, Woo Ho Lee
  • Devices in miniature for interferometric use and fabrication thereof
    Publication number: 20080285044
    Abstract: A device in miniature and fabrication of such a device for interferometric use is described, the device including a substrate with at least one deep reactive ion etching structure on at least one surface of the substrate forming an optical bench. The optical bench preferably comprises a moving stage, an actuator, one or more connector sockets and one or more optical components.
    Type: Application
    Filed: January 23, 2008
    Publication date: November 20, 2008
    Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Jeongsik Sin, Woo Ho Lee
  • Optical fiber polishing and finishing system, device and method
    Patent number: 7407431
    Abstract: A method, device and system for polishing and/or finishing one or more optical fibers. The method comprising securing an optical fiber connector to at least one holder, generating a tilting motion at the end of the optical fiber, adjusting the tilting motion of the optical fiber to create the desired optical fiber end shape and positioning a stage to provide planar motion to the at least one holder. A desired tilting motion of the optical fiber is generated by adjusting tension of at least one spring in operable connection with the at least one holder. Further adjustments to the tilting motion may be accomplished by further changes in tension of the at least one spring. A desired fiber optic end shape may be provided by the method, system and device described herein. Such shapes include dome, circular, or flat.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: August 5, 2008
    Assignee: Board of Regents, The University of Texas System
    Inventors: Woo Ho Lee, Jeongsik Sin
  • Optical fiber polishing and finishing system, device and method
    Publication number: 20070042683
    Abstract: A method, device and system for polishing and/or finishing one or more optical fibers. The method comprising securing an optical fiber connector to at least one holder, generating a tilting motion at the end of the optical fiber, adjusting the tilting motion of the optical fiber to create the desired optical fiber end shape and positioning a stage to provide planar motion to the at least one holder. A desired tilting motion of the optical fiber is generated by adjusting tension of at least one spring in operable connection with the at least one holder. Further adjustments to the tilting motion may be accomplished by further changes in tension of the at least one spring. A desired fiber optic end shape may be provided by the method, system and device described herein. Such shapes include dome, circular, or flat.
    Type: Application
    Filed: July 6, 2006
    Publication date: February 22, 2007
    Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM.
    Inventors: Woo Lee, Jeongsik Sin
  • Micro positioning device with shared actuators
    Patent number: 6513250
    Abstract: A device for micro positioning of small objects using an actively generated friction force field. Positioning is achieved by sequentially holding the object by a gripper or holding means while moving the gripper on a manipulation surface by means of piezoelectric actuators.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: February 4, 2003
    Assignee: Rensselaer Polytechnic Institute
    Inventor: Jeongsik Sin
  • Micro positioning device with shared actuators
    Publication number: 20020004991
    Abstract: A device for micro positioning of small objects using an actively generated friction force field. Positioning is achieved by sequentially holding the object by a gripper or holding means while moving the gripper on a manipulation surface by means of piezoelectric actuators.
    Type: Application
    Filed: July 13, 2001
    Publication date: January 17, 2002
    Inventor: Jeongsik Sin