Patents by Inventor Wook Cho

Wook Cho 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: 8470084
    Abstract: An electrode precipitator having a high voltage electrode and a low voltage electrode arranged apart from each other at a desired interval. The high voltage electrode includes a charging part which is positioned upstream of an air flow direction to charge a pollutant, and a dust collection part which is spaced from the charging part and positioned downstream of the air flow direction to precipitate the charged pollutant therein.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: June 25, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun Ho Ji, Kochiyama Yasuhiko, Hyong Soo Noh, So Young Yun, Han Wook Cho
  • Patent number: 8465952
    Abstract: The present invention relates to a microorganism producing L-methionine precursor, O-acetylhomoserine, and a method of producing L-methionine precursor using the microorganism.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: June 18, 2013
    Assignee: CJ Cheiljedang Corporation
    Inventors: Chul Ha Kim, So Young Kim, Young Uk Shin, Hye Won Um, Jin Sook Chang, Young Wook Cho, Han Jin Lee, In Kyung Heo, Chang II Seo, Kwang Ho Na
  • Patent number: 8463640
    Abstract: A method of adaptively updating a first recommended user group list of a first user connected to a network, in which a predetermined number of second users are selected from the first recommend user group list that is a list of users having a high similarity to the first user in consuming contents. A predetermined number of third users having a high similarity to the first user is selected from second recommend user group lists respectively of the selected second users possess. The first recommend user group list is updated to include the selected third users. As the preference of a user changes, the recommend user group may be reconfigured with updated recommend users by reflecting a corresponding preference. Also, quality contents can be provided by recommending a user of a corresponding terminal with the contents preferred by other users in the updated recommend user group list.
    Type: Grant
    Filed: January 6, 2009
    Date of Patent: June 11, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeong-rok Jang, Cheol-ju Hwang, Jae-hwang Lee, Min-ho Lee, Sung-hwan Choi, Sang-wook Cho, Yun-ju Choe
  • Patent number: 8449646
    Abstract: Disclosed is a method for preparing low-oxygen titanium powders. The method includes (a) separately placing titanium base powders and calcium in a deoxidation container, (b) deoxidizing the titanium base powders by heating an inner part of the deoxidation container at a temperature of 850° C. to 1050° C. so that the calcium is evaporated to make contact with the titanium base powders, (c) removing calcium oxide from surfaces of titanium powders, which are obtained by deoxidizing the titanium base powders in step (b), by washing the titanium powders, and (d) drying the titanium powders subject to the removing of the calcium oxide in step (c).
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: May 28, 2013
    Assignee: Korea Institute of Geoscience and Mineral Resources
    Inventors: Jae-Won Lim, Jung-Min Oh, Back-Kyu Lee, Chang-Youl Suh, Sung-Wook Cho
  • Patent number: 8449813
    Abstract: Disclosed is a deoxidation apparatus for preparing low-oxygen titanium powders. The deoxidation apparatus includes a lower container having an open upper portion and storing an deoxidizer representing an oxygen degree higher than an oxygen degree of titanium and a melting temperature lower than a melting temperature of titanium, and an upper container coupled with the lower container on the lower container and storing titanium base powders. The upper container is provided at a lower surface thereof with a sieve, and allows the deoxidizer, which is evaporated due to heating, to make contact with the titanium base powders so that the titanium base powders are deoxidized.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: May 28, 2013
    Assignee: Korea Institute of Geoscience and Mineral Resources
    Inventors: Jae-Won Lim, Jung-Min Oh, Back-Kyu Lee, Chang-Youl Suh, Sung-Wook Cho
  • Publication number: 20130125706
    Abstract: Disclosed is a method for preparing low-oxygen titanium powders. The method includes (a) separately placing titanium base powders and calcium in a deoxidation container, (b) deoxidizing the titanium base powders by heating an inner part of the deoxidation container at a temperature of 850° C. to 1050° C. so that the calcium is evaporated to make contact with the titanium base powders, (c) removing calcium oxide from surfaces of titanium powders, which are obtained by deoxidizing the titanium base powders in step (b), by washing the titanium powders, and (d) drying the titanium powders subject to the removing of the calcium oxide in step (c).
    Type: Application
    Filed: July 17, 2012
    Publication date: May 23, 2013
    Inventors: Jae-Won LIM, Jung-Min OH, Back-Kyu LEE, Chang-Youl SUH, Sung-Wook CHO
  • Publication number: 20130128093
    Abstract: A device for transporting an optical element so that inclination of the optical element is substantially prevented to more precisely control the position of the optical element, including: a base; a transporting member that supports the optical element and is movably disposed along a predetermined direction with respect to the base; a magnet extending from the base along a movement direction of the transporting member; a coil that is coupled to the transporting member and generates a magnetic field when an electrical signal is applied thereto; and a magnetic substrate that is disposed on the transporting member and applies a force to the transporting member toward the magnet due an action of a magnetic force between the magnet and the magnetic substrate.
    Type: Application
    Filed: July 11, 2012
    Publication date: May 23, 2013
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Young-jae HWANG, Kwang-seok BYON, Hyoung-wook CHO
  • Publication number: 20130127097
    Abstract: Disclosed is a deoxidation apparatus for preparing low-oxygen titanium powders. The deoxidation apparatus includes a lower container having an open upper portion and storing an deoxidizer representing an oxygen degree higher than an oxygen degree of titanium and a melting temperature lower than a melting temperature of titanium, and an upper container coupled with the lower container on the lower container and storing titanium base powders. The upper container is provided at a lower surface thereof with a sieve, and allows the deoxidizer, which is evaporated due to heating, to make contact with the titanium base powders so that the titanium base powders are deoxidized.
    Type: Application
    Filed: July 17, 2012
    Publication date: May 23, 2013
    Inventors: Jae-Won LIM, Jung-Min OH, Back-Kyu LEE, Chang-Youl SUH, Sung-Wook CHO
  • Patent number: 8443216
    Abstract: In an embodiment, a power management unit (PMU) may automatically transition (in hardware) the performance states of one or more performance domains in a system. The target performance states to which the performance domains are to transition may be programmable in the PMU by software, and software may signal the PMU that a processor in the system is to enter the sleep state. The PMU may control the transition of the performance domains to the target performance states, and may cause the processor to enter the sleep state. In an embodiment, the PMU may be programmable with a second set of target performance states to which the performance domains are to transition when the processor exits the sleep state. The PMU may control the transition of the performance domains to the second targeted performance states and cause the processor to exit the sleep state.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: May 14, 2013
    Assignee: Apple Inc.
    Inventors: Josh P. de Cesare, Jung Wook Cho, Toshi Takayanagi, Timothy J. Millet
  • Publication number: 20130111191
    Abstract: A system and method for reducing power consumption through issue throttling of selected problematic instructions. A power throttle unit within a processor maintains instruction issue counts for associated instruction types. The instruction types may be a subset of supported instruction types executed by an execution core within the processor. The instruction types may be chosen based on high power consumption estimates for processing instructions of these types. The power throttle unit may determine a given instruction issue count exceeds a given threshold. In response, the power throttle unit may select given instruction types to limit a respective issue rate. The power throttle unit may choose an issue rate for each one of the selected given instruction types and limit an associated issue rate to a chosen issue rate. The selection of given instruction types and associated issue rate limits is programmable.
    Type: Application
    Filed: October 31, 2011
    Publication date: May 2, 2013
    Inventors: Daniel C. Murray, Andrew J. Beaumont-Smith, John H. Mylius, Peter J. Bannon, Toshi Takayanagi, Jung Wook Cho
  • Patent number: 8426171
    Abstract: The present invention relates to a method for producing L-methionine and organic acid comprising the following steps: Step 1) preparing a strain producing L-methionine precursor and producing L-methionine precursor by the fermentation of the strain; Step 2) producing L-methionine and organic acid by the enzyme reaction process with the L-methionine precursor as a substrate, and microorganism strains used in each step.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: April 23, 2013
    Assignee: CJ Cheiljedang Corporation
    Inventors: So-young Kim, Kwang-myung Cho, Yong-uk Shin, Hye-won Um, Kyung-oh Choi, Jin-sook Chang, Young-wook Cho, Young-hoon Park
  • Patent number: 8415424
    Abstract: An aromatic ring-containing polymer for an underlayer of a resist, including a unit structure represented by Chemical Formula 1:
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: April 9, 2013
    Assignee: Cheil Industries, Inc.
    Inventors: Min-Soo Kim, Hwan-Sung Cheon, Sung-Wook Cho, Seung-Bae Oh, Jee-Yun Song
  • Patent number: 8413255
    Abstract: A DRM method and DRM-enabled mobile device are provided, in which determinations are made as to whether a playback request is input for replaying a media file, and, if so, whether the media file is a rights-protected media file on the basis of a file format of the media file. If the media file is a rights-protected media file, at least one sample playback part of the rights-protected media file is verified and replayed; otherwise, the entire rights-protected media file is replayed.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: April 2, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun Wook Cho, Dae Gyue Park
  • Publication number: 20130078293
    Abstract: The present invention provides a hybrid powder of halloysite nanotubes and light-scattering nanoparticles, a method for preparing the same, and a UV-screening cosmetic composition containing the same as an active ingredient. The hybrid powder of halloysite nanotubes and light-scattering nanoparticles according to the present invention, in which the light-scattering nanoparticles are loaded into the halloysite nanotubes, can prevent the light-scattering nanoparticles from penetrating the skin, which minimizes side effects, and has excellent UV-screening effect. Thus, the hybrid powder of halloysite nanotubes and light-scattering nanoparticles according to the present invention can be effectively used as a UV-screening cosmetic composition.
    Type: Application
    Filed: September 26, 2011
    Publication date: March 28, 2013
    Inventors: Yong Jae Suh, Myung Eun Ju, Dae Sup Kil, Sung Wook Cho
  • Publication number: 20130076381
    Abstract: A method and apparatus for temperature sensor calibration is disclosed. In one embodiment, an integrated circuit (IC) is tested at a first known temperature corresponding to a first temperature threshold. During the test, a first temperature reading is obtained from a temperature sensor. A first offset is calculated by determining the difference between the first known temperature and the first temperature reading. The first offset is recorded in a storage unit for later use during operation of the IC. During operation, the first offset may be added to temperature readings obtained from a temperature sensing unit to produce an adjusted temperature value. The adjusted temperature value may be compared to one or more temperature thresholds. Based on the comparisons, a power management unit may perform power control actions.
    Type: Application
    Filed: September 26, 2011
    Publication date: March 28, 2013
    Inventors: Toshinari Takayanagi, Jung Wook Cho
  • Patent number: 8394792
    Abstract: Disclosed are heterocyclic derivatives, and more particularly heterocyclic derivatives having the following Formula I which are useful for the preparation of medicaments for treating diseases related to uric acid: wherein R1, R2, R3, R4, R5, R6, R7, R8, X1, X2, X3, L and Y are the same as defined in the detailed description.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: March 12, 2013
    Assignee: C&C Research Laboratories
    Inventors: Sung Oh Ahn, Chan Hee Park, Jun Hwan Im, Soon Ok Lee, Kyoung June Lee, Seong Wook Cho, Kwang Seok Ko, Sun Young Han, Won Il Lee
  • Publication number: 20130043917
    Abstract: A system and method for efficiently managing multiple PLLs on a system on a chip (SOC). A SOC includes a hardware phase lock loop (PLL) switching control block coupled to a software interface. The hardware PLL switching (HPS) control block receives PLL switch requests from software. The request identifies a given core clock received by a given processing core of multiple processor cores on the SOC and indicates the identified core clock is not to be provided anymore by a current PLL. The request indicates a given search method including search conditions. The HPS control block searches for a target PLL that satisfies these search conditions. In response to finding the target PLL, the HPS control block changes clock network connections and parameters across the die of the SOC. These changes across the die disconnect the identified core clock from the current PLL and connects the identified core clock to the target PLL.
    Type: Application
    Filed: August 16, 2011
    Publication date: February 21, 2013
    Inventors: Josh P. de Cesare, Jung Wook Cho, Toshinari Takayanagi
  • Publication number: 20130042135
    Abstract: A system and method for efficiently synchronizing multiple processing cores on a system-on-a-chip (SOC). A SOC includes an interrupt controller and multiple processing cores. The interrupt controller includes a main time base counter. The SOC includes multiple local time base counters, each coupled to a respective one of the processing cores. Synchronization logic blocks are used to update the local counters. These blocks receive a subset of bits from the interrupt controller. The subset of bits represents a number of least significant bits of the main counter less than a total number of bits for the main counter. The logic blocks update an associated local counter according to changes to the received subset of bits. A difference may exist between values of the main counter in the interrupt controller and the local counter in the processing core. However, this difference may be a constant value.
    Type: Application
    Filed: August 12, 2011
    Publication date: February 14, 2013
    Inventors: Herbert Lopez-Aguado, Jung Wook Cho, Conrad H. Ziesler
  • Patent number: 8373638
    Abstract: A display apparatus is disclosed. The display apparatus includes: a plurality of scan signal lines and a plurality of data signal lines that cross each other; a plurality of pixels formed at each crossing of the scan signal lines and the data signal lines, wherein each of the pixels includes sub-pixels that display red color, green color, blue color and white color in response to a scan signal from the scan signal lines and a data signal from the data signal lines, wherein the sub-pixels are arranged in a 2×2 matrix; a scan signal driving circuit including a plurality of stages that supplies the scan signal to the scan signal lines; and a data signal driving circuit that supplies the data signal to the data signal lines, wherein the scan signal driving circuit, the pixels, the scan signal lines and the data signal lines are formed on a same substrate.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: February 12, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Yong Ho Jang, Binn Kim, Nam Wook Cho
  • Patent number: 8362491
    Abstract: An LCD device is disclosed, to minimize the signal distortion by decreasing the instability of voltage in a-Si:H TFT of a gate driving signal output unit, which includes a signal controller for outputting first and second control signals Q and /Q; a pull-up transistor between a clock signal terminal CLK and a gate driving signal output terminal for receiving the first control signal Q, the pull-up transistor having a first gate electrode, a first source electrode and a first drain electrode, wherein the pull-up transistor has an asymmetric structure in a first area of the first source electrode overlapped with the first gate electrode and a second area of the first drain electrode overlapped with the first gate electrode; and a pull-down transistor connected between the gate driving signal output terminal and a ground voltage terminal, wherein the pull-down transistor receives the second control signal.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: January 29, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Yong Ho Jang, Nam Wook Cho, Min Doo Chun