Patents by Inventor Chong-Jin Ong

Chong-Jin Ong 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: 9789485
    Abstract: A micro-fluidic device includes at least one inlet and a curvilinear microchannel having a trapezoidal cross section defined by a radially inner side, a radially outer side, a bottom side, and a top side, the cross section having a) the radially inner side and the radially outer side unequal in height, or b) the radially inner side equal in height to the radially outer side, and wherein the top side has at least two continuous straight sections, each unequal in width to the bottom side.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: October 17, 2017
    Assignees: Massachusetts Institute of Technology, National University of Singapore
    Inventors: Jongyoon Han, Chao Yu Peter Chen, Chong Jin Ong, Guofeng Guan, Ali Asgar Bhagat, Lidan Wu
  • Publication number: 20150238963
    Abstract: A micro-fluidic device includes at least one inlet and a curvilinear microchannel having a trapezoidal cross section defined by a radially inner side, a radially outer side, a bottom side, and a top side, the cross section having a) the radially inner side and the radially outer side unequal in height, or b) the radially inner side equal in height to the radially outer side, and wherein the top side has at least two continuous straight sections, each unequal in width to the bottom side.
    Type: Application
    Filed: September 20, 2013
    Publication date: August 27, 2015
    Inventors: Jongyoon Han, Chao Yu Peter Chen, Chong Jin Ong, Guofeng Guan, Ali Asgar Bhagat, Lidan Wu
  • Patent number: 8409076
    Abstract: A device (10) for laparoscopic or thoracoscopic surgery, the device (10) comprising: a first member (20) to be moved across the body (5) of a patient; and a second member (30) to be placed within the body (5), the second member (30) comprising an image capturing device (32) to capture images from within the body (5) and to transmit the captured images for display; wherein the second member (30) is in magnetic engagement with the first member (20) such that the movement of the second member (30) within the body (5) is in response to movement of the first member (20) across the body (5).
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: April 2, 2013
    Assignees: Mport Pte Ltd, National University of Singapore
    Inventors: Ah San Pang, Chong Jin Ong, Chee Kong Chui
  • Publication number: 20090005636
    Abstract: A device (10) for laparoscopic or thoracoscopic surgery, the device (10) comprising: a first member (20) to be moved across the body (5) of a patient; and a second member (30) to be placed within the body (5), the second member (30) comprising an image capturing device (32) to capture images from within the body (5) and to transmit the captured images for display; wherein the second member (30) is in magnetic engagement with the first member (20) such that the movement of the second member (30) within the body (5) is in response to movement of the first member (20) across the body (5).
    Type: Application
    Filed: October 19, 2006
    Publication date: January 1, 2009
    Applicants: MPORT PTE LTD, National University of Singapore
    Inventors: Ah San Pang, Chong Jin Ong, Chee Kong Chui
  • Patent number: 6588610
    Abstract: A system is disclosed for eliminating sway of a load in a crane or crane-like system subject to operator's command. The load is suspended by a cable from a horizontally movable trolley and can be hoisted vertically. The system uses the principle of cancellation to eliminate sway even when the crane has simultaneous horizontal trolley and vertical hoisting motions. The system takes into account the full dynamical effect in computing cancellation signals. The use of a family of ordinary differential equations for the computation of the cancellation controls is a key component of the invention. In computing these controls, the differential equations are solved in real time using sensory measurement of the cable length and its time derivative.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: July 8, 2003
    Assignee: National University of Singapore
    Inventors: Chong-Jin Ong, Elmer G. Gilbert
  • Publication number: 20020158036
    Abstract: A system is disclosed for eliminating sway of a load in a crane or crane-like system subject to operator's command. The load is suspended by a cable from a horizontally movable trolley and can be hoisted vertically. The system uses the principle of cancellation to eliminate sway even when the crane has simultaneous trolley and hoisting motions. The system takes into account the full dynamical effect in computing cancellation signals. The use of a family of ordinary differential equations for the computation of the cancellation controls is a key component of the invention. In computing these controls, the differential equations are solved in real time using sensory measurement of the cable length and its time derivative. The cancellation controls handle the sway induced by the operator's command. Sway can also be induced by other factors, like wind load and external disturbances. This system also includes a feedback mechanism for eliminating sway due to such factors.
    Type: Application
    Filed: March 5, 2001
    Publication date: October 31, 2002
    Inventors: Chong-Jin Ong, Elmer G. Gilbert