Patents by Inventor Yoon Chang

Yoon Chang 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: 9398857
    Abstract: A diagnostic imaging apparatus and a method of operating the diagnostic imaging apparatus. The diagnostic imaging apparatus includes: a probe that scans a subject, into which a contrast agent is injected, to obtain a scan signal; and a display unit that displays a scan video image obtained based on the scan signal, on a first region of a screen, and N captured images from the scan video image on a second region of the screen, where N is a natural number.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: July 26, 2016
    Assignee: SAMSUNG MEDISON CO., LTD.
    Inventors: Sung-jin Choi, Jong-sik Kim, Yoon-chang Lee
  • Patent number: 9368786
    Abstract: A positive active material including a lithium composite oxide and a transition metal oxide including a transition metal having an oxidation number smaller than an oxidation number when the transition metal is in the most stable state hinders generation of oxygen occurring during charging and provides a lithium battery with high-temperature preservation characteristics and high stability.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: June 14, 2016
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Young-Hun Lee, Jay-Hyok Song, Ick-Kyu Choi, Young-Ki Kim, Soon-Rewl Lee, Yu-Mi Song, Yoon-Chang Kim
  • Patent number: 9343739
    Abstract: In one aspect, a positive active material is provided that may have increased thermal stability and resistance to capability deterioration due to repeated charging and discharging, a method of manufacturing the same, and a lithium battery that includes the positive active material.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: May 17, 2016
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Chang-Hyuk Kim, Do-Hyung Park, Seon-Young Kwon, Min-Han Kim, Ji-Hyun Kim, Jeong-Seop Lee, Yoon-Chang Kim
  • Patent number: 9295452
    Abstract: A method of correcting ultrasound images, the method including the operations of, by an ultrasound output unit, outputting an ultrasound signal to a target object; obtaining an mechanical index (MI) map indicating a correlation between depth values according to a travel direction of the ultrasound signal, and MI values by the ultrasound signal; and adjusting a gain value of an ultrasound echo signal corresponding to the ultrasound signal by using a reverse MI map that is obtained by reversing the MI map, so as to allow the MI values, which are displayed on the MI map, to be a virtually constant MI value with respect to the depth values.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: March 29, 2016
    Assignee: Samsung Medison Co., Ltd.
    Inventors: Yoon-chang Lee, Kurt Sandstrom
  • Publication number: 20160042111
    Abstract: A layout method for use in fabricating a semiconductor device includes creating a contact layout including cell contact layouts and peripheral contact layouts using a computer, and creating an interconnection layout including cell interconnection layouts and peripheral interconnection layouts using the computer. The interconnection layout includes a plurality of line layouts and bride layouts. The line layouts include cell interconnection layouts and peripheral line layouts. The peripheral line layouts include a first peripheral line layout and a second peripheral line layout adjacent to each other, and the peripheral contact layouts include a misaligned contact layout interposed between the first and second peripheral line layouts. The bridge layout connects the first and second peripheral line layouts and overlaps the misaligned contact layout. In the method, the second peripheral line layout is divided along its length.
    Type: Application
    Filed: May 19, 2015
    Publication date: February 11, 2016
    Inventor: JI-YOON CHANG
  • Patent number: 9236609
    Abstract: A positive active material for a rechargeable lithium battery includes a nickel-based composite oxide represented by the following Chemical Formula 1, wherein the nickel-based composite oxide includes an over lithiated oxide and non-continuous portions of a lithium nickel cobalt manganese oxide on a surface of the over lithiated oxide. LiaNibCocMndO2??Chemical Formula 1 where 1<a<1.6, 0.1<b<0.7, 0.1<c<0.4, and 0.1<d<0.7.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: January 12, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Han-Eol Park, Byung-Joo Chung, Chang-Wook Kim, Chun-Gyoo Lee, Jong-Seo Choi, Yoon-Chang Kim
  • Patent number: 9207117
    Abstract: Methods of measuring a sample characteristic and accessories for infrared (IR) spectrometers are provided. An accessory includes an input port and an output port having an optical path therebetween, a surface plasmon resonance (SPR) structure for contacting a sample, a mirror system, and an optical element for producing collimated light. The SPR structure produces internally reflected light responsive to broadband IR light, modified by a SPR between the SPR structure and the sample. The mirror system directs the broadband IR light from the input port to the SPR structure and directs the internally reflected light from the SPR structure to the output port, producing output light indicative of a characteristic of the sample associated with the SPR. The optical element is disposed along the optical path between the input port and the output port.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: December 8, 2015
    Assignee: University of Delaware
    Inventors: Karl Booksh, Nicola Menegazzo, Yoon-Chang Kim, Derrick Allen, Lauren Kegel
  • Patent number: 9118090
    Abstract: A piezoelectric element layer is further formed as a package material of a secondary battery, so that the secondary battery can be self-charged using a voltage generated in the piezoelectric element layer according to vibration generated in an electronic device and vibration generated by movement of the electronic device itself. The secondary battery includes a battery case that accommodates an electrode assembly, the battery case having an outer coating layer and a piezoelectric element layer formed on an inner surface of the outer coating layer, and a protection circuit module mounted to an outside of the battery case and electrically connected to the electrode assembly. In the secondary battery, a voltage storage is provided to the protection circuit module, and the piezoelectric element layer converts absorbed vibration into voltage and then stores the voltage in the voltage storage so that the secondary battery is self-charged as occasion demands.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: August 25, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seol-Ah Lee, So-Ra Lee, Do-Hyung Park, Jun-Sik Kim, Chong-Hoon Lee, Seok-Gyun Woo, Jong-Ki Lee, Min-Hwan Kim, Yoon-Chang Kim, Jake Kim
  • Publication number: 20150236334
    Abstract: A cap assembly and a secondary battery including the cap assembly including a cap-down, and at least a portion thereof is configured to open when pressure is applied to the cap-down, a vent portion, and at least a portion thereof is configured to open when pressure is applied to the vent portion, and a cap-up electrically connected to the vent portion.
    Type: Application
    Filed: December 23, 2014
    Publication date: August 20, 2015
    Inventors: Sang-Hyo Lee, Won-Il Jung, Yoon-Chang Kim
  • Patent number: 9077050
    Abstract: A lithium secondary battery including lithium molybdate. The lithium molybdate is a composite including semi-crystalline lithium molybdate as a minor component and crystalline lithium molybdate as a major component.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: July 7, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-Ki Kim, Young-Hun Lee, Ick-Kyu Choi, Yong-Chul Park, Yoon-Chang Kim, Hyun-Deok Lee, Yong-Chan You
  • Patent number: 9034520
    Abstract: Disclosed is a positive active material for a lithium secondary battery. The positive active material includes a lithium molybdenum oxide having an X-ray diffraction (XRD) pattern with peaks at 11.5±2°, 21±2°, 38±2°, and 64±2° 2-theta (2?) and represented by Formula 1: LixMoO3, where 1<x?3. Also disclosed is a method of preparing the positive active material.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: May 19, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-Ki Kim, Young-Hun Lee, Soon-Rewl Lee, Jay-Hyok Song, Ick-Kyu Choi, Yong-Chul Park, Yoon-Chang Kim
  • Patent number: 8999575
    Abstract: Disclosed is a positive electrode and a lithium battery including the positive electrode. The positive electrode includes a current collector, a first layer irreversibly deintercalating lithium ions, and a second layer allowing reversible intercalation and deintercalation of lithium ions. In one embodiment, the first layer further comprises a first sublayer and a second sublayer, in which the first sublayer is interposed between the current collector and the second sublayer. The first sublayer comprises a first active material represented by Formula 1 Li2Mo1-nR1nO3, and the second sublayer comprises a second active material represented by Formula 2 Li2Ni1-mR2mO2. In Formula 1, 0?n<1; and R1 is selected from the group consisting of manganese (Mn), iron (Fe), cobalt (Co), copper (Cu), zinc (Zn), magnesium (Mg), nickel (Ni), and combinations of at least two of the foregoing elements.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: April 7, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Soon-Rewl Lee, Ick-Kyu Choi, Young-Ki Kim, Jay-Hyok Song, Young-Hun Lee, Yu-Mi Song, Yoon-Chang Kim
  • Patent number: 8986886
    Abstract: A positive active material, a method of preparing the same, and a lithium battery including the same.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: March 24, 2015
    Assignee: Samsung SDI Co., Ltd
    Inventors: Do-Hyung Park, Chang-Hyuk Kim, Ji-Hyun Kim, Jeong-Seop Lee, Min-Han Kim, Seon-Young Kwon, Yoon-Chang Kim
  • Patent number: 8911902
    Abstract: A nickel (Ni)-based positive electrode active material, a method of preparing the same, and a lithium battery using the Ni-based positive electrode active material.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: December 16, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Do-Hyung Park, Seon-Young Kwon, Min-Han Kim, Ji-Hyun Kim, Chang-Hyuk Kim, Jeong-Seop Lee, Yoon-Chang Kim
  • Patent number: 8871113
    Abstract: A positive active material includes first and second lithium nickel complex oxides. A positive electrode and lithium battery include the positive active material. The positive active material, and the lithium battery including the positive active material have increased filling density, are thermally stable, and have improved capacity.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: October 28, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Min-Han Kim, Do-Hyung Park, Ji-Hyun Kim, Jeong-Seop Lee, Chang-Hyuk Kim, Seon-Young Kwon, Yoon-Chang Kim
  • Publication number: 20140065483
    Abstract: A positive active material for a rechargeable lithium battery includes a nickel-based composite oxide represented by the following Chemical Formula 1, wherein the nickel-based composite oxide includes an over lithiated oxide and non-continuous portions of a lithium nickel cobalt manganese oxide on a surface of the over lithiated oxide. LiaNibCocMndO2 ??Chemical Formula 1 where 1<a<1.6, 0.1<b<0.7, 0.1<c<0.4, and 0.1<d<0.7.
    Type: Application
    Filed: August 9, 2013
    Publication date: March 6, 2014
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Han-Eol Park, Byung-Joo Chung, Chang-Wook Kim, Chun-Gyoo Lee, Jong-Seo Choi, Yoon-Chang Kim
  • Patent number: 8586247
    Abstract: A positive electrode active material for lithium batteries includes secondary particles having primary particles and an amorphous material. A method of manufacturing the positive electrode active material includes mixing a lithium composite oxide and a lithium salt, and heat treating the mixture. A positive electrode includes the positive electrode active material, and a lithium battery includes the positive electrode.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: November 19, 2013
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Do-Hyung Park, Seon-Young Kwon, Min-Han Kim, Ji-Hyun Kim, Chang-Hyuk Kim, Yoon-Chang Kim, Jeong-Seop Lee
  • Publication number: 20130283728
    Abstract: The present invention relates to a pi truss structure. A pi truss structure, in which a bracing part is coupled to a coupling groove defined on the inside of each upper and lower pi parts, respectively, and wherein web members having two rows of the pi parts are disposed and coupled so as to face each other at a right angle within a plate-shaped flange member, and the coupling groove having a shape is defined inward in the lengthwise direction. Also, one side of each of the web members is disposed on the flange member, the other side being bent outward so as to form a reinforcing flange part. The coupling grooves of the upper and lower pi parts are disposed facing each other so as to couple coupling members to the coupling grooves, respectively. Also, the bracing part is coupled to the coupling members.
    Type: Application
    Filed: December 27, 2011
    Publication date: October 31, 2013
    Inventor: Kwang Yoon Chang
  • Publication number: 20130240734
    Abstract: Methods of measuring a sample characteristic and accessories for infrared (IR) spectrometers are provided. An accessory includes an input port and an output port having an optical path therebetween, a surface plasmon resonance (SPR) structure for contacting a sample, a mirror system, and an optical element for producing collimated light. The SPR structure produces internally reflected light responsive to broadband IR light, modified by a SPR between the SPR structure and the sample. The mirror system directs the broadband IR light from the input port to the SPR structure and directs the internally reflected light from the SPR structure to the output port, producing output light indicative of a characteristic of the sample associated with the SPR. The optical element is disposed along the optical path between the input port and the output port.
    Type: Application
    Filed: July 28, 2011
    Publication date: September 19, 2013
    Applicant: University of Delaware
    Inventors: Karl Booksh, Nicola Menegazzo, Yoon-Chang Kim, Laurel Kegel, Derrick Allen
  • Patent number: 8525154
    Abstract: Provided is a light-emitting device which has a simple structure and can be manufactured in a simple process, has increased light coupling efficiency and brightness, and can reduce adverse effects of optical resonance on a view angle and emission spectrum. The light-emitting device includes a substrate; a light-emitting diode formed on the substrate; and an optical resonance layer formed outside the light-emitting diode that induces resonance of light emitted from the light-emitting diode.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: September 3, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yoon-Chang Kim, Young-Woo Song, Sang-Hwan Cho, Ji-Hoon Ahn, Joon-Gu Lee, So-Young Lee, Jong-Seok Oh, Jae-Heung Ha