Patents by Inventor Hyung Choi

Hyung Choi 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: 20140074268
    Abstract: Provided is a method for developing an assessment table which is used as a standard for measuring kinesthetic giftedness of preschoolers, that is, 5 to 7 years old infants, for indexation of the kinesthetic giftedness based on measured data for each section and factor using the assessment table, and for classifying the kinesthetic giftedness into levels, so as to identify and assess detailed abilities and potential of kinesthetic gifted infants.
    Type: Application
    Filed: December 15, 2012
    Publication date: March 13, 2014
    Inventor: Moon Hyung CHOI
  • Publication number: 20130345557
    Abstract: A light scanning probe includes: a probe main body; a light scanner that includes a scanner module that is driven to rotate and a beam reflector that includes a plurality of reflection surfaces which alter a path of light being scanned by the scanner module, wherein the light scanner is disposed within the probe main body; and an optical fiber that guides light which is received from a light input unit toward the scanner module. A medical imaging apparatus includes the light scanning probe that irradiates light toward an object; a receiver that receives a signal which is generated in the object; and a signal processor that processes the signal received by the receiver.
    Type: Application
    Filed: June 26, 2013
    Publication date: December 26, 2013
    Inventors: Jong-seok KIM, Sung-chan KANG, Woon-bae KIM, Yong-seop YOON, Hyung CHOI
  • Patent number: 8581945
    Abstract: A light emitting diode array including apertures, a line printer head using the light emitting diode array, and a method of manufacturing the light emitting diode array. The light emitting diode array includes the apertures that are formed in a substrate and restrict tunnels of light emitted from a plurality of light emitting diodes. Also, a lens that refracts the light transmitted through the plurality of apertures is included.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: November 12, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seok-Jin Kang, Hyung Choi, Eung-Yeoul Yoon
  • Patent number: 8525862
    Abstract: A lens integrated light emitting diode array, a line printer head using the light emitting diode array, and a method of manufacturing the light emitting diode array. The light emitting diode array includes a plurality of light emitting diodes formed on a surface of a transparent substrate and a plurality of lenses formed on another surface opposite to the surface of the transparent substrate, wherein the plurality of light emitting diodes are divided into a plurality of groups to be arranged to respectively correspond to the plurality of lenses.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: September 3, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seok-jin Kang, Hyung Choi, Eung-yeoul Yoon
  • Patent number: 8474937
    Abstract: Provided are an apparatus and method of controlling jetting of ink of an inkjet printer. The apparatus includes at least one print head chip, which includes a temperature sensor for sensing the temperature of the print head chip and a voltage controlled oscillator (VCO) for converting the sensed temperature to a frequency component. The apparatus may also include a counter, which converts the frequency component to a code information using a reference frequency component, and a controller, which controls the ink jetting operation of the at least one print head chip based on the code information and/or the frequency component.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: July 2, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-Won Jeong, Hyung Choi, Yong-Seop Yoon, Moon-Chul Lee, Dong-Shik Shim
  • Patent number: 8419158
    Abstract: An apparatus to sense the temperature of an ink-jet head includes at least one or more CMOS (complementary metal oxide semiconductor) lateral BJTs (bipolar junction transistors) to sense the temperature of the ink-jet head, and a current supply unit to supply a current to the CMOS lateral BJTs. Minimum sized CMOS lateral BJTs are applied to an ink-jet printer head so that precise temperature control can be performed in a shuttle or array type ink-jet printer.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: April 16, 2013
    Assignee: SAMSUNG Electronics Co., Ltd.
    Inventors: Yong-won Jeong, Hyung Choi, Eun-bong Han, Yong-seop Yoon, Moon-chul Lee, Dong-sik Shim
  • Publication number: 20130088856
    Abstract: A transmissive and reflective mode convertible display is provided including a converting unit convertible between a reflective mirror layer state and a light transmitting layer state and a shutter unit. Based on the state of the converting unit, the display may be drive to utilize light from a backlight transmitted through the converting unit or external light reflected off the converting unit.
    Type: Application
    Filed: July 3, 2012
    Publication date: April 11, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-seok KIM, Dong-sik SHIM, Yong-seop YOON, Hyung CHOI, Woon-bae KIM
  • Publication number: 20130070445
    Abstract: A micro-optical switching device, an image display apparatus including the micro-optical switching device, and a method of manufacturing the micro-optical switching device are provided. The micro-optical switching device includes a substrate; a first electrode disposed on the substrate and including a first opening array, wherein the first opening array includes a plurality of openings; and a second electrode disposed spaced apart from the first electrode and including a second opening array including a plurality of openings, wherein the plurality of openings of the second opening array do not overlap with the plurality of openings of the first opening array.
    Type: Application
    Filed: May 1, 2012
    Publication date: March 21, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong-sik SHIM, Jong-seok KIM, Yong-seop YOON, Hyung CHOI, Woon-bae KIM
  • Patent number: 8367367
    Abstract: A method of positively detecting toxic materials within a sample, the method including contacting sub-mitochondrial particles having competent mitochondrial enzymes formed from inner membranes of mitochondria, an electron donor which transmits electrons to an electron transfer system of the sub-mitochondrial particles and the sample, and forming reaction resultants, adjusting a pH of a pH indicator which change color according to a change in pH, adding the pH indicators to each reaction resultant and identifying color changes of the pH indicator. Also provided is a kit for positively detecting toxic materials within a sample.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: February 5, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-im Han, Soo-hyung Choi, Soo-suk Lee, Sung-ouk Jung, Joon-shik Park, Ki-eun Kim
  • Patent number: 8330917
    Abstract: A thin film transistor (TFT) substrate that may not have display quality degradation due to an image sticking phenomenon and a liquid crystal display having the same are disclosed for embodiments. The TFT substrate, according to one embodiment of the present invention, includes an insulating substrate, a plurality of gate lines and a plurality of data lines arranged in a matrix defined by the crossing of the gate lines and the data lines on the insulating substrate, a plurality of thin film transistors each electrically connected to the gate lines and of the data lines at crossing points of the gate lines and the data lines, a plurality of pixel electrodes each connected to the thin film transistors and partially overlapping a previous gate line, and a blocking electrode formed between each pixel electrode and its adjacent pixel electrode in parallel with the gate lines.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: December 11, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Hee Park, Sun-Hyung Choi, Jeong-Geun Yoo
  • Patent number: 8229055
    Abstract: The present invention relates to a top nozzle for a nuclear fuel assembly that has a two-stage elastic section such that a pushing force against the axial movement of the nuclear fuel assembly under normal conditions is optimized and at the same time a suppressing force against a drastic uplifting force of the nuclear fuel assembly under transient conditions is strengthened, and that lowers the elastic coefficients of the springs operating under normal conditions more than those of existing coil springs, thereby providing an optimal pushing force against the nuclear fuel assembly.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: July 24, 2012
    Assignee: Korea Nuclear Fuel Co., Ltd.
    Inventors: Joon-kyoo Park, Joon-hyung Choi, Kyu-Tae Kim, Jung-min Suh, Shin-ho Lee, Nam-gyu Park, Kyong-bo Eom, Jin-sun Kim, Jin-seok Lee, Seong-ki Lee
  • Patent number: 8216482
    Abstract: A method of manufacturing an inkjet printhead includes forming a chamber layer having multiple ink chambers on a substrate. A sacrificial layer is formed and is configured to fill a space associated with the ink chambers on the chamber layer. A nozzle layer is formed on the top surfaces of the chamber layer and the sacrificial layer and having multiple nozzles. An etching mask is prepared on the bottom surface of the substrate. The etching mask has at least one linear etching pattern configured to define a portion of the substrate in which an ink feed hole is to be formed. The substrate is etched through the linear etching pattern until the sacrificial layer is exposed and a through hole is formed. The through hole defines the portion of the substrate in which the ink feed hole is to be formed. The sacrificial layer and the portion of the substrate surrounded by the through hole are removed to form the ink feed hole.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: July 10, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Seok Kim, Yong-Seop Yoon, Moon-Chul Lee, Yong-Won Jeong, Dong-Sik Shim, Hyung Choi
  • Patent number: 8107044
    Abstract: A liquid crystal display (LCD) apparatus includes a first substrate including a switching element and a pixel electrode, the pixel electrode electrically connected to the switching element, and a second substrate disposed over the first substrate, the second substrate including a common electrode having a first slit and a second slit, wherein the first slit divides a unit pixel area into a plurality of domains, and the second slit partially overlaps the pixel electrode and is disposed to correspond to a boundary area of adjacent unit pixel areas.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: January 31, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sun-Hyung Choi, Jin-Hee Park, Jeong-Geun Yoo
  • Patent number: 8100511
    Abstract: A heater of a thermal inkjet printhead. The heater is formed of tantalum aluminum oxynitride (Ta—Al—ON), wherein the tantalum aluminum oxynitride is formed of about 30 to about 60 atomic % tantalum, about 10 to about 30 atomic % aluminum, about 5 to about 30 atomic % oxygen, and about 5 to about 30 atomic % nitrogen.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: January 24, 2012
    Assignee: SAMSUNG Electronics Co., Ltd.
    Inventors: Kyong-il Kim, Sung-joon Park, Jun-woo Suh, Hyung Choi
  • Patent number: 8052855
    Abstract: A carbon nanotube (“CNT”) gas sensor includes a substrate, an insulating layer formed on the substrate, electrodes formed on the insulating layer, and CNT barriers that protrude higher than the electrodes in spaces between the electrodes to form gas detecting spaces. A method of manufacturing the gas sensor includes forming an insulating layer on a substrate, forming an electrode pattern on the insulating layer, coating CNT paste having a thickness greater than a thickness of electrodes in the electrode pattern on the electrodes and the insulating layer, and patterning and firing the carbon nanotube paste, including using a photolithography method, to retain only portions of the CNT paste coated on spaces between the electrodes.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: November 8, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-im Han, Soo-hyung Choi, Jeong-hee Lee, Soo-suk Lee, Jeong-na Heo
  • Patent number: 8047077
    Abstract: A surface acoustic wave (“SAW”) sensor includes; a first signal generator which generates a first signal having a predetermined frequency bandwidth using a pseudo random sequence, a second signal generator which generates a second signal with a predetermined frequency, a signal blender which blends the first signal with the second signal to generate a blended signal having the predetermined frequency bandwidth with the predetermined frequency as a center frequency, a wave generator which generates a surface acoustic wave using the blended signal, which converts the surface acoustic wave into a third signal after the surface acoustic wave travels a predetermined distance, and which outputs the third signal, and a signal detector which detects a change in the third signal from the wave generator to sense a substance bound to the wave generator.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: November 1, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hun Joo Lee, Soo Suk Lee, Soo Hyung Choi
  • Publication number: 20110256570
    Abstract: A method of positively detecting toxic materials within a sample, the method including contacting sub-mitochondrial particles having competent mitochondrial enzymes formed from inner membranes of mitochondria, an electron donor which transmits electrons to an electron transfer system of the sub-mitochondrial particles and the sample, and forming reaction resultants, adjusting a pH of a pH indicator which change color according to a change in pH, adding the pH indicators to each reaction resultant and identifying color changes of the pH indicator. Also provided is a kit for positively detecting toxic materials within a sample.
    Type: Application
    Filed: June 8, 2011
    Publication date: October 20, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.,
    Inventors: Jung-im HAN, Soo-hyung CHOI, Soo-suk LEE, Sung-ouk JUNG, Joon-shik PARK, Ki-eun KIM
  • Publication number: 20110200927
    Abstract: An electrophotographic toner, a method of preparing the electrophotographic toner, and an image forming apparatus using the electrophotographic toner. The electrophotographic toner includes a binder resin, a colorant, a releasing agent, and a spherical metal nanoparticle having a volume average diameter of about 10 to about 100 nm.
    Type: Application
    Filed: October 22, 2010
    Publication date: August 18, 2011
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Moon-il JUNG, In-sik PARK, Hyung CHOI, Seung-jin OH
  • Patent number: 7981634
    Abstract: Disclosed herein is a method of positively detecting toxic materials within a sample, the method including contacting sub-mitochondrial particles with an electron donor. The electron donor is reacted with an electron transfer system of the sub-mitochondrial particles to produce a reactant. A pH indicator has its pH adjusted to be in a range of 9 to 11. The pH indicator is added to each reactant. Color changes in the pH indicator permit the detection of toxins present in the sample.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: July 19, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-im Han, Soo-hyung Choi, Soo-suk Lee, Sung-ouk Jung, Joon-shik Park, Ki-eun Kim
  • Patent number: 7959265
    Abstract: Provided is a thermal inkjet printhead. The inkjet printhead includes a substrate; an insulating layer formed on the substrate; a heater formed on the insulating layer and an electrode to apply current to the heater; a chamber layer that is stacked on the insulating layer and includes an ink chamber; a nozzle layer that is stacked on the chamber layer and includes a nozzle; and at least a heat transfer layer that is formed inside the insulating layer and dissipates heat generated in by the heater toward the substrate.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: June 14, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-sik Shim, Hyung Choi, Yong-seop Yoon, Chang-seung Lee