Patents by Inventor Won-bin Im

Won-bin Im 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).

  • Publication number: 20240139436
    Abstract: A method of controlling injection of a drug includes receiving a captured medical image of an object, identifying an object of interest from the medical image, based on a position and a shape of the object of interest, determining a drug injection position, based on the position and the shape of the object of interest, determining a plurality of electrode insertion positions, the plurality of electrodes being configured to supply a current to move the drug, defining a drug movement path based on a shape of the identified object of interest, generating current sequence information to move the drug along the drug movement path, the current sequence information defining a current applied over time to each of the plurality of electrodes, and outputting the current sequence information to a current source apparatus.
    Type: Application
    Filed: October 30, 2023
    Publication date: May 2, 2024
    Applicants: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, UIF (UNIVERSITY INDUSTRY FOUNDATION), YONSEI UNIVERSITY, IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Young Bin Choy, Han Bi Ji, Chang Hee Min, Jae Hoon Han, Won Seok Chang, Jun Won Park, Chang-Hwan Im, Kyeong-Gu Lee
  • Patent number: 11532770
    Abstract: A light emitting diode (LED) assembly includes an LED light source having a first light output with a characteristic spectrum and at least one phosphor through which the first light output passes. The phosphor includes the quaternary compound M-Li—Al—O, where M is Ba, Sr, or Ca, activated by Eu2+ or Ce3+.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: December 20, 2022
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Shyue Ping Ong, Jungmin Ha, Zhenbin Wang, Joanna McKittrick, Won Bin Im, Yoon Hwa Kim
  • Publication number: 20210193880
    Abstract: A light emitting diode (LED) assembly includes an LED light source having a first light output with a characteristic spectrum and at least one phosphor through which the first light output passes. The phosphor includes the quaternary compound M-Li—Al—O, where M is Ba, Sr, or Ca, activated by Eu2+ or Ce3+.
    Type: Application
    Filed: October 15, 2018
    Publication date: June 24, 2021
    Inventors: Shyue Ping ONG, Jungmin HA, Zhenbin WANG, Joanna MCKITTRICK, Won Bin IM, Yoon Hwa KIM
  • Patent number: 10619095
    Abstract: A phosphor of a chemically stable inorganic luminescent material having a NASICON structure and an application product including the phosphor, such as a light-emitting device. A phosphor having the formula of A1+xBxC2?xD3X12:AEy where A is one or two types of elements of monovalent metal cations, B is one or two types of elements of trivalent cations, C is one or two types of elements of tetravalent cations, D is one or two types of elements of pentavalent cations, X is one or two types of elements of N, O, F, P, S, O, Cl, and Br, AE is one or two types of elements of Mn, Ce, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, Yb, Th, U, and Bi, 0?x?2, and 0?y?0.1.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: April 14, 2020
    Assignee: INDUSTRY FOUNDATION OF CHONNAM NATIONAL UNIVERSITY
    Inventors: Won Bin Im, Yoon Hwa Kim
  • Publication number: 20170210984
    Abstract: A phosphor of a chemically stable inorganic luminescent material having a NASICON structure and an application product including the phosphor, such as a light-emitting device. A phosphor having the formula of A1+xBxC2?xD3X12:AEy where A is one or two types of elements of monovalent metal cations, B is one or two types of elements of trivalent cations, C is one or two types of elements of tetravalent cations, D is one or two types of elements of pentavalent cations, X is one or two types of elements of N, O, F, P, S, O, Cl, and Br, AE is one or two types of elements of Mn, Ce, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, Yb, Th, U, and Bi, 0?x?2, and 0?y?0.1.
    Type: Application
    Filed: April 28, 2015
    Publication date: July 27, 2017
    Inventors: Won Bin IM, Yoon Hwa KIM
  • Patent number: 8535565
    Abstract: Phosphor compositions comprising a solid solution series between Sr3AlO4F and Sr3SiO5 and a solid solution series between Sr3AlO4F and GdSr2AlO5, are disclosed. A white light emitting LED using the phosphor compositions is also disclosed.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: September 17, 2013
    Assignee: The Regents of the University of California
    Inventors: Won-Bin Im, Ram Seshadri, Steven P. DenBaars
  • Patent number: 8344611
    Abstract: A blue-green emitting Ce3+-activated oxyfluoride phosphor for use with a light emitting diode (LED) in solid state lighting applications. The blue-green emitting Ce3+-activated oxyfluoride phosphor is represented as: (Sr1-x-yAEy)3(Al1-zTz)O4F:Ce3+x wherein 0<x?0.3, 0?y?1, AE includes at least one element selected from alkaline earth metals on the periodic table, for example, Mg, Ca and Ba, 0?z?1, and T includes at least one atom selected from Al, B, Ga, and In. The blue-green emitting Ce3+-activated oxyfluoride phosphor may be combined with another phosphor to generate the white light. Specifically, the present invention provides for white light generation by combining the blue-green emitting Ce3+-activated oxyfluoride phosphor with either a near-ultraviolet (UV) LED and red emitting phosphor, or with a near-UV LED and a red-yellow phosphor.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: January 1, 2013
    Assignee: The Regents of the University of California
    Inventors: Won-Bin Im, Ram Seshadri, Steven P. DenBaars
  • Publication number: 20120326078
    Abstract: Disclosed is a method for preparing a cathode active material represented by Li2MSiO4 (M=transition metal) for a lithium secondary battery using microwaves, including: 1) dispersing a silicon compound in a solvent; 2) mixing a lithium salt and a transition metal salt in the resulting dispersion and then adding a chelating agent to form complex ions: and 3) treating the mixture with microwaves for gelation. The prepared cathode active material represented by Li2MSiO4 (M=transition metal) for a lithium secondary battery has homogeneous composition and superior characteristics. Further, since the preparation process is simple, the production efficiency is good.
    Type: Application
    Filed: November 1, 2011
    Publication date: December 27, 2012
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kyung Yoon CHUNG, Won Bin IM, Byung Won CHO, Won Young CHANG, Hyung Sun KIM
  • Patent number: 8163203
    Abstract: A Ce3+ based aluminate phosphor or Ce3+ based phosphor in a solid solution can be used for white light generation when combined with a blue or ultraviolet light emitting diode.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: April 24, 2012
    Assignee: The Regents of the University of California
    Inventors: Won-bin Im, Ram Seshadri, Steven P. DenBaars
  • Publication number: 20110101272
    Abstract: Phosphor compositions comprising a solid solution series between Sr3AlO4F and Sr3SiO5 and a solid solution series between Sr3AlO4F and GdSr2AlO5, are disclosed. A white light emitting LED using the phosphor compositions is also disclosed.
    Type: Application
    Filed: October 13, 2010
    Publication date: May 5, 2011
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Won-Bin Im, Ram Seshadri, Steven P. DenBaars
  • Publication number: 20100314993
    Abstract: A blue-green emitting Ce3+-activated oxyfluoride phosphor for use with a light emitting diode (LED) in solid state lighting applications. The blue-green emitting Ce3+-activated oxyfluoride phosphor is represented as: (Sr1-x-yAEy)3(Al1-zTz)O4F:Ce3+x wherein 0<x?0.3, 0?y?1, AE includes at least one element selected from alkaline earth metals on the periodic table, for example, Mg, Ca and Ba, 0?z?1, and T includes at least one atom selected from Al, B, Ga, and In. The blue-green emitting Ce3+-activated oxyfluoride phosphor may be combined with another phosphor to generate the white light. Specifically, the present invention provides for white light generation by combining the blue-green emitting Ce3+-activated oxyfluoride phosphor with either a near-ultraviolet (UV) LED and red emitting phosphor, or with a near-UV LED and a red-yellow phosphor.
    Type: Application
    Filed: June 16, 2010
    Publication date: December 16, 2010
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Won-Bin Im, Ram Seshadri, Steven P. DenBaars
  • Publication number: 20090283800
    Abstract: A method for photoelectrochemical (PEC) etching of a p-type semiconductor layer simply and efficiently, by providing a driving force for holes to move towards a surface of a p-type cap layer to be etched, wherein the p-type cap layer is on a heterostructure and the heterostructure provides the driving force from an internal bias generated internally in the heterostructure; generating electron-hole pairs in a separate area of the heterostructure than the surface to be etched; and using an etchant solution to etch the surface of the p-type layer.
    Type: Application
    Filed: May 12, 2009
    Publication date: November 19, 2009
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Won-bin Im, Ram Seshadri, Steven P. DenBaars
  • Publication number: 20090212314
    Abstract: A Ce3+ based aluminate phosphor or Ce3+ based phosphor in a solid solution can be used for white light generation when combined with a blue or ultraviolet light emitting diode.
    Type: Application
    Filed: February 27, 2009
    Publication date: August 27, 2009
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Won-Bin Im, Ram Seshadri, Steven P. DenBaars