Patents by Inventor Hong Kwon

Hong Kwon 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: 20120040235
    Abstract: Provided are a pouch-type secondary battery having improved safety, and a battery pack including the pouch-type secondary battery. When inner pressure of a pouch is increased by an overdischarge, the pouch is deformed to separate electrode leads from electrode tabs. When the secondary battery is manufactured, an additional material or device is unnecessary. In addition, since the pouch-type secondary battery fundamentally cuts off electric current when gas is generated therein, the service life and safety of the secondary battery can be significantly improved, and the manufacturing costs and the weight thereof can be reduced. Furthermore, the shape of the secondary battery can be easily modified.
    Type: Application
    Filed: September 23, 2011
    Publication date: February 16, 2012
    Applicant: LG CHEM, LTD.
    Inventors: Seung Su CHO, You Rim YOON, Seung Don CHOI, Ho Jin JEON, Dae Sik CHOI, Dae Hong KWON
  • Patent number: 8035918
    Abstract: A spindle motor includes a spindle motor hub that supports one or more disks, and has a contact area reduction portion that minimizes the area of contact between the hub and a disk when the disk is mounted to the hub. The spindle motor hub includes a hub body having a cylindrical sidewall that includes a contact section around which the disk extends and a non-contact section. The non-contact section is constituted by the contact area reduction portion. An outer diameter of the cylindrical hub body at the contact section is greater than an outer diameter of the cylindrical hub body at the contact area reduction portion of the non-contact section.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: October 11, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hong Kwon Lee
  • Patent number: 7944418
    Abstract: A data driving circuit for a light emitting display may include a gamma voltage generator that generates gradation voltages, a current sink that receives a predetermined current from a pixel via a data line during a first partial period of one complete period for driving the pixel, a voltage generator that generates an incrementally increasing compare voltage during the first partial period, a comparator that compares a compensation voltage generated based on the predetermined current with the compare voltage and generates a logic signal based on a result of the compare, an adjusting unit that generates compensation data based on the logic signal, and a digital-analog converter that generates a composite data using the compensation data and externally supplied data and selects, as a data signal for the pixel, one of the plurality of gradation voltages based on a bit value of the composite data.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: May 17, 2011
    Assignees: Samsung Mobile Display Co., Ltd., IUCF-HYU—Hanyang University
    Inventors: Bo Yong Chung, Do Hyung Ryu, Hong Kwon Kim, Oh Kyong Kwon
  • Patent number: 7893897
    Abstract: A data driving circuit for driving pixels of a light emitting display to display images with uniform brightness may include a gamma voltage unit that generates a plurality of gray scale voltages, a digital-analog converter that selects, as a data signal, one of the plurality of gray scale voltages using first data, a decoder that generates second data using the first data, a current sink, a voltage controller that controls a voltage value of the data signal using the second data and a compensation voltage generated based on the predetermined current, and a switching unit that supplies the data signal to the pixel during any partial period of the complete period elapsing after the first partial period. The current sink receives a predetermined current from the pixel during a first partial period of a complete period for driving the pixel based on the selected gray scale voltage.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: February 22, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Bo Yong Chung, Do Hyung Ryu, Hong Kwon Kim, Oh Kyong Kwon
  • Patent number: 7852286
    Abstract: A data driver to display an image with desired brightness, and an organic light emitting display device using the same. The data driver includes a register to temporarily store external data; a voltage digital-analog converter to generate a data voltage corresponding to the data stored in the register part; a current digital-analog converter to generate a data current corresponding to the data stored in the register part; a buffer part to supply the data voltage as a data signal to pixels via a data line; a data control unit to receive a pixel current corresponding to the data voltage from the pixel via the data line and to control a digital value of the data stored in the register part; and a selection unit to selectively couple the data line with either of the buffer part or the data control unit.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: December 14, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Sang Moo Choi, Hong Kwon Kim, Oh Kyong Kwon
  • Patent number: 7847768
    Abstract: Disclosed are an organic electroluminescence display having simple configurations of a pixel circuit and a driving circuit by using a frequency characteristic of an organic electroluminescence device to display a gray level, and a driving method thereof. The present invention provides an organic electroluminescence display including a plurality of scan lines for transmitting a scan signal; a plurality of data lines for transmitting a digital data signal; a plurality of emission control lines for transmitting an emission control signal; and a plurality of pixels defined by a plurality of power supply lines for supplying a power supply, wherein the scan signal is transmitted to a plurality of subframes, and the emission control signal have different frequencies in a plurality of the subframes, and a driving method thereof.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: December 7, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventor: Hong Kwon Kim
  • Publication number: 20100261615
    Abstract: The present application discloses a method for detecting a presence of target ligand in a fluid medium which includes the steps of: (i) contacting the fluid medium with a solid substrate that includes an array of dendrons on its surface, wherein each of the dendron includes a central atom, a probe that is attached to the central atom optionally through a linker, and a base portion attached to the central atom and having a plurality of termini that are attached to the surface of the solid support; and (ii) determining the presence of a probe-target ligand complex by measuring binding force between the bound ligand and detection molecule tethered to the tip of an atomic force microscope (“AFM”), which detection molecule has affinity for the ligand, wherein measurement of an increase in force between the probe-target ligand complex and the detection molecule by AFM indicates the presence of the probe-target ligand complex.
    Type: Application
    Filed: June 16, 2008
    Publication date: October 14, 2010
    Inventors: Joon Won Park, Bong Jin Hong, Sung Hong Kwon
  • Publication number: 20100246069
    Abstract: An HDD includes a head stack assembly, a voice coil motor, and a retracting pin unit. The retracting pin unit includes a mobile retracting pin generating a retracting force to maintain the actuator arm at a predetermined position by interacting with the magnet when the read/write head is parked, and coupled to the bobbin to be capable of relatively moving with respect to the bobbin toward the magnet when the bobbin is separated from the magnet due to an external shock. A head on disk phenomenon, in which the parking state of the read/write head is removed when an external shock such as a linear shock or a rotary shock, which may be generated as the HDD is installed in a notebook computer, is applied to the HDD, may be reduced.
    Type: Application
    Filed: March 30, 2010
    Publication date: September 30, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jung Moo SON, Hong Kwon Lee, Byung-Soo Kim
  • Patent number: 7796100
    Abstract: An organic electroluminescence display transmits a data driving voltage to a data driving unit to make different a voltage of the data signal outputted from the data driving unit, the data driving voltage being in a different level in every subframe according to the digital data signal, and displaying a desired grey level of an image by allowing a desired subframe to emit light according to the number of bits of the data signal, and a driving method thereof. An organic electroluminescence display includes a plurality of scan lines to transmit a scan signal; a plurality of data lines to transmit a digital data signal; and a plurality of pixels defined by a plurality of power supply lines to supply power, wherein the scan signal is transmitted to a plurality of subframes, and ON signals of the digital data signal have different voltages in a plurality of the subframes.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: September 14, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventor: Hong Kwon Kim
  • Patent number: 7692613
    Abstract: Circuits for a pixel in a light emitting display capable of displaying an image with desired brightness are described. The pixel circuit includes a driver to supply a pixel current to the light emitting device corresponding to a data signal supplied from a data line, a first switching unit coupled between the driver and the data line, and a second switching unit coupled between the data line and a common node formed between the driver and the light emitting device. The driver, in turn, includes a first transistor to generate the pixel current to be supplied from a first power line to the light emitting device, a first capacitor coupled between the first transistor and the first switching unit to be charged with a voltage corresponding to the threshold voltage of the first transistor, and a second capacitor to be charged with a voltage corresponding to the data signal.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: April 6, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Sang Moo Choi, Hong Kwon Kim, Oh Kyong Kwon
  • Patent number: 7663616
    Abstract: A data driving circuit for displaying an image with a desired brightness comprises: a current digital-analog converter for generating a gradation current corresponding to external data, and for receiving a first current corresponding to the gradation current from a pixel via a data line; a current control unit for receiving a pixel current from the pixel via the data line, and for selectively increasing and decreasing a level of the first current in accordance with the received pixel current; and a selection unit for selectively connecting the data line to either the current digital-analog converter or the current control unit. An organic light emitting diode and a method of driving same are similarly configured. With these configurations, an image is displayed with desired brightness.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: February 16, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Sang-Moo Choi, Hong-Kwon Kim, Oh-Kyong Kwon
  • Patent number: 7649514
    Abstract: A data driving circuit including: a voltage digital-analog converter adapted to generate a first gradation voltage corresponding to external data; a current digital-analog converter adapted to generate a gradation current corresponding to the external data; a voltage control unit adapted to receive a feedback pixel current from a pixel via a data line and to generate a second gradation voltage by increasing or decreasing a level of the first gradation voltage in accordance with the feedback pixel current; a buffer unit adapted to selectively supply the first or second gradation voltage to the data line; and a selection unit adapted to selectively connect the data line to either the buffer unit or the voltage control unit. With this configuration, an image is displayed with a desired brightness.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: January 19, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Sang-Moo Choi, Hong-Kwon Kim, Oh-Kyong Kwon
  • Publication number: 20090246128
    Abstract: A radio-immunoconjugate for diagnosis and treatment of cancer or metastasis and development of metastasis inhibitory formulations using the same is provided. Also, a radio-immunoconjugate is used as a material indicating a metastatic cancer that has antibody marked with any lanthanum radionuclide and/or gamma, beta or alpha ray emitting radioisotopes targeting a vascular endothelial growth factor receptor (VEGFR) is provided. Such a radio-immunoconjugate is advantageous in that it maintains structural stability of a protein and immune activity thereof and is effectively adsorbed to the surface of vascular endothelial cells. This makes it useful as a pre-metastatic site detection factor. When the radio-immunoconjugate is administered to an animal model with cancer, the radio-immunoconjugate is accumulated in cancerous tissues. Therefore, it is useful for development of radioactive metastasis inhibitory formulations.
    Type: Application
    Filed: November 14, 2008
    Publication date: October 1, 2009
    Applicant: Korea Atomic Energy Research Institute
    Inventors: Sun-Ju Choi, Young-Don Hong, So-Young Lee, Sun-Ha Yoon, Hong Kwon Kim
  • Patent number: 7567401
    Abstract: A method and apparatus for controlling a rotation of a motor in a disk drive. The method includes: performing spin-up when the disk drive is operating and determining whether a disk rotation speed is less than predetermined target constant revolutions per minute (RPM); rotating a disk at predetermined low RPM when determining that the disk drive is at a low temperature and changing a rotation mode to a low-speed rotation mode if it is determined that the disk rotation speed is less than the predetermined target constant RPM; and spinning up the disk to the target constant RPM when determining that the temperature of the disk drive has increased and changing the rotation mode to a high-speed rotation mode if a disk rotation driving current decreases below a predetermined reference current value while the disk is rotating at the low RPM.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: July 28, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hong-kwon Lee, Sang-chul Shin
  • Publication number: 20090048120
    Abstract: The present application discloses a method for detecting a presence of target ligand in a fluid medium which includes the steps of: (i) contacting the fluid medium with a solid substrate that includes an array of dendrons on its surface, wherein each of the dendron includes a central atom, a probe that is attached to the central atom optionally through a linker, and a base portion attached to the central atom and having a plurality of termini that are attached to the surface of the solid support; and (ii) determining the presence of a probe-target ligand complex by measuring binding force between the bound ligand and detection molecule tethered to the tip of an atomic force microscope (“AFM”), which detection molecule has affinity for the ligand, wherein measurement of an increase in force between the probe-target ligand complex and the detection molecule by AFM indicates the presence of the probe-target ligand complex.
    Type: Application
    Filed: June 16, 2008
    Publication date: February 19, 2009
    Inventors: Joon Won Park, Bong Jin Hong, Sung Hong Kwon
  • Patent number: 7486474
    Abstract: A hard disk drive including: a base; a disk pivotally installed in the base to store data; an actuator installed in the base to move a read/write head to a predetermined position of the disk; a cover assembled with the base and having an air hole for making internal/external pressures of the hard disk drive equal to each other; and a breather filter interposed between the cover and the base in order to filter air introduced through the air hole of the cover. An upper portion of the breather filter is tightly coupled to the cover and a lower portion of the breather filter is tightly coupled to the base.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: February 3, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seng-chul Shin, Hong-kwon Lee
  • Patent number: 7483004
    Abstract: A pixel, an organic light emitting display including the same, and a driving method thereof, in which a gradation is represented using the frequency characteristic of an organic light emitting diode. The organic light emitting display includes a plurality of pixels which are connected by a plurality of scan lines for supplying scan signals, a plurality of data lines for supplying data signals, and a plurality of power source lines, each pixel having: a frequency supplying line through which a frequency signal corresponding to a sub-frame is supplied; a pixel circuit outputting a current corresponding to an output obtained by applying a logical operation to a corresponding one of the data signals and the frequency signal; and an organic light emitting diode for emitting light based on the current outputted from the pixel circuit.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: January 27, 2009
    Assignee: Samsung SDI Co., Ltd
    Inventor: Hong Kwon Kim
  • Publication number: 20080222681
    Abstract: The invention relates to a method for recording multiple programs in a digital broadcasting receiver. The digital broadcasting receive, when receiving a record command for multiple programs in the broadcast signal currently incoming, confirms and stores PID's of each of the programs corresponding to the record command. Thereafter, the digital broadcasting receiver searches the broadcast data for the PID's so as to store broadcast data by matching PID values. According to the present invention, the method for recording multiple programs is advantageous in that a broadcasting receiver may be implemented so as to simultaneously record multiple programs.
    Type: Application
    Filed: April 8, 2005
    Publication date: September 11, 2008
    Applicant: KAONMEDIA CO., LTD.
    Inventor: Do-Hong Kwon
  • Publication number: 20080186995
    Abstract: The present invention relates to MDU broadcasting signal distribution system, and more specifically, to MDU system that receives a broadcasting signal through a single broadcasting receiving antenna in a multiplex house or building where an IP network is provided, and then transmits the broadcasting signal to each MDU set-top box through the IP network. According to the invention, when an IP network is provided in a multiplex house or building, without installing a dish-shaped antenna or cable, the set-top box is connected to the IP network so as to receive satellite broadcasting, terrestrial DMB, and cable broadcasting. Therefore, broadcasting signals can be effectively distributed to each home such that desired broadcasting can be enjoyed in the home. Further, by applying IGMP, broadcasting can be selectively provided to an MDU set-top box belonging to a specific group.
    Type: Application
    Filed: January 16, 2008
    Publication date: August 7, 2008
    Applicant: KAONMEDIA CO., LTD.
    Inventor: Do-Hong KWON
  • Publication number: 20080180837
    Abstract: A spindle motor includes a spindle motor hub that supports one or more disks, and has a contact area reduction portion that minimizes the area of contact between the hub and a disk when the disk is mounted to the hub. The spindle motor hub includes a hub body having a cylindrical sidewall that includes a contact section around which the disk extends and a non-contact section. The non-contact section is constituted by the contact area reduction portion. An outer diameter of the cylindrical hub body at the contact section is greater than an outer diameter of the cylindrical hub body at the contact area reduction portion of the non-contact section.
    Type: Application
    Filed: January 23, 2008
    Publication date: July 31, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Hong Kwon LEE