Patents by Inventor Jin Hong Kim

Jin Hong Kim 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).

  • POWER GENERATION METHOD AND SYSTEM OF POWER GENERATOR
    Publication number: 20150270715
    Abstract: Provided are a power generation method and system of a power generator that can allow an output power of the power generator to be constant and cope with a case in which the velocity of a power generation source changes very quickly at a low lost. The power generation method includes determining a reference total power intended to be generated by a plurality of power generators, calculating a current command value through the reference total power and an instantaneous velocity sensed by each of the plurality of power generators, and regulating an output current of the power generator using the calculated current command value such that a total power output by the plurality of power generators is approximate to the reference total power.
    Type: Application
    Filed: May 13, 2014
    Publication date: September 24, 2015
    Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Joon Sung Park, Jin Hong Kim, Jun Hyuk Choi, In Soung Jung
  • POROUS BORON NITRIDE AND METHOD OF PREPARING THE SAME
    Publication number: 20150246821
    Abstract: This disclosure relates to porous boron nitride and a method for preparing the same. The porous boron nitride of the present invention may be obtained by mixing a boron source with a nitrogen source, heating the mixture to form a compound, and then, extracting elements other than boron and nitrogen. The porous boron nitride of the present invention comprises both micropores and mesopoers, and it has a large specific surface area, and thus, may be usefully used in various fields.
    Type: Application
    Filed: July 24, 2013
    Publication date: September 3, 2015
    Inventors: Shin Hoo Kang, Ji Soon Ihm, Dong Ok Kim, Jin-Hong Kim
  • Toner buffer unit of an electrophotographic image forming apparatus
    Patent number: 9116465
    Abstract: Provided is an electrophotographic image forming apparatus including: a toner buffer unit arranged between a toner cartridge and a developing unit to receive toner from the toner cartridge and supply the toner to the developing unit; and a toner level detection unit. The toner buffer unit includes a first buffer unit connected to the toner cartridge. A first conveyance member including a rotation shaft and a conveyance wing provided in the rotation shaft and transporting the toner in a radial direction is provided in the first buffer unit. The toner buffer unit includes an elevation plate provided in the first buffer unit and elevated according to a toner level, and a sensor unit detecting a location of the elevation of the elevation plate. The elevation plate is located to be spaced apart from the conveyance wing in an axial direction of the rotation shaft.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: August 25, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-hong Kim, Jong-hwa Park
  • ADAPTIVE GREENHOUSE CONTROL METHOD
    Publication number: 20150173307
    Abstract: Provided is an adaptive greenhouse control method that can control a greenhouse to provide an optimized environment by automatically and daily adapting to an external environment and a type of the greenhouse.
    Type: Application
    Filed: February 25, 2014
    Publication date: June 25, 2015
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Dong Wan RYOO, Hae Dong LEE, Ae Kyeung MOON, Jang Sik BAE, Sang Ho Lee, Song Li, Jin Hong Kim, Soo In Lee
  • LIQUID CRYSTAL DEVICE
    Publication number: 20150131033
    Abstract: A liquid crystal device, a precursor composition, a method of manufacturing a liquid crystal device, an apparatus of manufacturing a liquid crystal device, and use of the liquid crystal device are provided. A device capable of being driven at a low driving voltage can be provided. The device can be realized so that the device can be driven in a normally transparent mode or a normally black mode. Also, the device has other excellent characteristics such as a contrast ratio. Such a liquid crystal device can be applied to various light modulation devices such as smart windows, window-protecting films, flexible display devices, active retarders for displaying 3D images, or viewing angle-adjusting films.
    Type: Application
    Filed: January 21, 2015
    Publication date: May 14, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Sung Joon MIN, Dong Hyun OH, Jung Sun YOU, Jin Hong KIM
  • ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS
    Publication number: 20150117877
    Abstract: An eletrophotographic image forming apparatus may include a developing unit; a toner buffer unit which feeds a toner to the developing unit, and includes an agitating member agitating the toner contained inside the toner buffer unit and a first carrying member carrying the toner contained inside the toner buffer unit to the developing unit; a toner cartridge which feeds the toner to the toner buffer unit, and includes a second carrying member carrying the toner contained inside the toner cartridge to the toner buffer unit; and a control unit which controls a first driving unit driving the second carrying member and a second driving unit driving the agitating member and the first carrying member, and the control unit includes a first feed mode, a second feed mode and a toner supplement mode.
    Type: Application
    Filed: May 30, 2014
    Publication date: April 30, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hyun-cheol LEE, Dae-ho Kim, Jin-hong Kim
  • Developing unit containing multiple supply rollers and image forming apparatus using the same
    Patent number: 9020404
    Abstract: A developing unit includes a toner storage portion for containing toner and a development portion for containing the toner supplied from the toner storage portion. The development portion includes a developing roller for supplying the toner to a photosensitive body, a supply roller and an auxiliary supply roller. The supply roller and the auxiliary supply roller rotate while facing each other to supply the toner to the developing roller. In the developing unit, an inequality that |D?(R1+R2)|?1.0 mm is satisfied, where a distance between the centers of the auxiliary supply roller and the supply roller in a region where the auxiliary supply roller and the supply roller face each other is D, a radius of the supply roller is R1, and a radius of the auxiliary supply roller is R2.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: April 28, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-hong Kim, Joo-hwan Noh, Young-su Lee, Yun-kyu Sim
  • ENGINE HAVING CONTINUOUS VARIABLE TIMING DEVICE
    Publication number: 20150101553
    Abstract: A control method of an engine having a variable valve timing may include selecting one of a first mode and a second mode as a driving mode, retarding an intake cam to a first predetermined angle range in the first mode, and advancing an intake cam to a second predetermined angle range in the second mode.
    Type: Application
    Filed: December 31, 2013
    Publication date: April 16, 2015
    Applicants: Kia Motors Corporation, Hyundai Motor Company
    Inventors: Young Kyu Oh, Chulho Yu, Jin Hong Kim, Il Joong Hwang, Jinnam Kim
  • ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS
    Publication number: 20150098716
    Abstract: Provided is an electrophotographic image forming apparatus including: a toner buffer unit arranged between a toner cartridge and a developing unit to receive toner from the toner cartridge and supply the toner to the developing unit; and a toner level detection unit. The toner buffer unit includes a first buffer unit connected to the toner cartridge. A first conveyance member including a rotation shaft and a conveyance wing provided in the rotation shaft and transporting the toner in a radial direction is provided in the first buffer unit. The toner buffer unit includes an elevation plate provided in the first buffer unit and elevated according to a toner level, and a sensor unit detecting a location of the elevation of the elevation plate. The elevation plate is located to be spaced apart from the conveyance wing in an axial direction of the rotation shaft.
    Type: Application
    Filed: March 11, 2014
    Publication date: April 9, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jin-hong Kim, Jong-hwa Park
  • Method and system for detecting fault of parallel coil type permanent magnet motor
    Patent number: 8947028
    Abstract: Disclosed are a method and system for detecting a fault of a parallel coil type permanent magnet motor. This method includes driving a parallel coil type motor on the basis of a pre-defined current reference value, detecting a phase current vector of the motor, and calculating a current compensation value for removing a negative sequence component of the motor on the basis of the phase current vector.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: February 3, 2015
    Assignee: Korea Electronics Technology Institute
    Inventors: Bon Gwan Gu, In Soung Jung, Jun Hyuk Choi, Joon Sung Park, Jin Hong Kim
  • Developing unit and image forming apparatus employing the same
    Patent number: 8923736
    Abstract: A developing unit includes a toner storage portion containing toner and including a toner supply member, a development portion disposed above the toner storage portion and containing the toner supplied from the toner storage portion by the toner supply member, and including a developing roller and a supply roller to supply the toner to the developing roller, and a partition wall to divide the toner storage portion and the development portion, and including an opening portion disposed under the lowest portion of the supply roller and forming a path of the toner supplied from the toner storage portion to the development portion.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: December 30, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-hong Kim, Joo-hwan Noh, Young-su Lee, Yun-kyu Sim
  • APPARATUS AND METHOD FOR ESTIMATING TEMPERATURE OF MOTOR USING HALL SENSOR
    Publication number: 20140369385
    Abstract: The present disclosure relates to an apparatus and method for estimating a temperature of a motor using a Hall sensor. The method includes detecting, at a digital Hall sensor, a position of a rotor included in a motor and outputting an on signal in an operating period and an off signal in a release period according to a relative position of the rotor, calculating, at a temperature determining module, a difference between duration of the operating period and duration of the release period according to an output waveform of the digital Hall sensor, and then determining, at the temperature determining module, a temperature of the motor with reference to a temperature corresponding to the duration difference. Accordingly, it is possible to estimate the internal temperature of a motor without installing a temperature sensor in the motor, to maintain a small size of the motor, and to reduce production costs.
    Type: Application
    Filed: April 4, 2014
    Publication date: December 18, 2014
    Applicant: Korea Electronics Technology Institute
    Inventors: Joon Sung PARK, Se Hyun Rhyu, In Soung Jung, Jun Hyuk Choi, Bon Gwan Gu, Jin Hong Kim
  • Method and system for detecting fault of serial coil type permanent magnet motor
    Patent number: 8913353
    Abstract: A method and system for detecting a fault of a serial coil type permanent magnet motor includes driving the motor based on a predefined current reference value, detecting a phase current vector of the motor, and calculating a current compensation value for removing a negative sequence component of the motor based on the phase current vector. The current compensation value is provided to a negative sequence current controller for calculating a faulty phase and a degree of a fault of the motor using the output of the negative sequence current controller and a fault model to which induced magnetic flux variations in a specific slot of a specific faulty phase of the motor and other slots of the same phase as the specific phase are applied, and applying a current reference value to which the calculated faulty phase and degree of fault are applied.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: December 16, 2014
    Assignee: Korea Electronics Technology Institute
    Inventors: Bon Gwan Gu, Jun Hyuk Choi, In Soung Jung, Joon Sung Park, Jin Hong Kim
  • DEVICE FOR REDUCING PRESSURE AND VELOCITY OF FLOWING FLUID
    Publication number: 20140332103
    Abstract: The present invention relates to a device for reducing the pressure and velocity of a flowing fluid. According to the present invention, a cage has discs having through holes which come into close contact with an outer surface of a plug. The discs are stacked in a direction of a central shaft of the cage. Flow passage portions are formed on the stacked discs, wherein the flow passage portions communicate with the outer surfaces of the discs, and the inner surfaces which correspond to the through-holes so as to form flow passages between the stacked discs, and the direction of the flow passages changes to a circumferential direction and a vertical direction on the stacked discs.
    Type: Application
    Filed: June 27, 2013
    Publication date: November 13, 2014
    Applicant: SDD CO., LTD.
    Inventors: Kab Ju Kwon, Young Bum Kim, Dong Pyo Seo, Jin Hong Kim
  • Nitride based semiconductor light emitting device
    Patent number: 8759815
    Abstract: The disclosure relates to a nitride based semiconductor light emitting device with improved luminescence efficiency by increasing a recombination rate of electrons and holes contributing to luminescence, which results from matching the spatial distribution of electron and hole wave functions. The nitride based semiconductor light emitting device according to the present invention includes an n-type nitride layer, an active layer formed on the n-type nitride layer, and a p-type nitride layer formed on the active layer. At this stage, a strain control layer, and the at least one layer has a larger energy bandgap than a quantum well layer in the active layer. The strain control layer is disposed in an area where the quantum well layer of the active layer is formed. Moreover, an energy bandgap of the strain control layer is less than that of quantum barrier of the active layer.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: June 24, 2014
    Assignee: Korea Photonics Technology Institute
    Inventors: Seong Ran Jeon, Young Ho Song, Jae Bum Kim, Young Woo Kim, Woo Young Cheon, Jin Hong Kim
  • METHOD AND SYSTEM FOR DETECTING FAULT OF PARALLEL COIL TYPE PERMANENT MAGNET MOTOR
    Publication number: 20140159621
    Abstract: Disclosed are a method and system for detecting a fault of a parallel coil type permanent magnet motor. This method includes driving a parallel coil type motor on the basis of a pre-defined current reference value, detecting a phase current vector of the motor, and calculating a current compensation value for removing a negative sequence component of the motor on the basis of the phase current vector.
    Type: Application
    Filed: March 18, 2013
    Publication date: June 12, 2014
    Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Bon Gwan GU, In Soung Jung, Jun Hyuk Choi, Joon Sung Park, Jin Hong Kim
  • METHOD AND SYSTEM FOR DETECTING FAULT OF SERIAL COIL TYPE PERMANENT MAGNET MOTOR
    Publication number: 20140160602
    Abstract: A method and system for detecting a fault of a serial coil type permanent magnet motor includes driving the motor based on a predefined current reference value, detecting a phase current vector of the motor, and calculating a current compensation value for removing a negative sequence component of the motor based on the phase current vector. The current compensation value is provided to a negative sequence current controller for calculating a faulty phase and a degree of a fault of the motor using the output of the negative sequence current controller and a fault model to which induced magnetic flux variations in a specific slot of a specific faulty phase of the motor and other slots of the same phase as the specific phase are applied, and applying a current reference value to which the calculated faulty phase and degree of fault are applied.
    Type: Application
    Filed: April 9, 2013
    Publication date: June 12, 2014
    Applicant: Korea Electronics Technology Institute
    Inventors: Bon Gwan Gu, Jun Hyuk Choi, In Soung Jung, Joon Sung Park, Jin Hong Kim
  • Method for gasification of carbon-containing materials by thermal decomposition of methane and conversion of carbon dioxide
    Patent number: 8663504
    Abstract: The present invention relates to a method for gasification of carbon-containing materials, and more specifically, to a method for gasification of carbon-containing materials which allows an increase in carbon efficiency and a reduction in carbon dioxide emission, comprising the steps of: gasification of carbon-containing materials to methane; thermal decomposition of CH4 to C and H2; and conversion of CO2 to CO using the carbon produced during the decomposition. The method of the present invention greatly increases carbon efficiency and reduces the generation of carbon dioxide.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: March 4, 2014
    Assignee: SK Innovations Co., Ltd.
    Inventors: Jin Hong Kim, Sang Ho Lee, Gyung Rok Kim, Il Yong Jeong, Sun Choi, Seung Hoon Oh, Gyoo Tae Kim, Yong Il Lee
  • Gasification Method for Reducing Emission of Carbon Dioxide
    Publication number: 20130326953
    Abstract: Provided is a gasification method of a carbon-containing material, the method including: (a) reacting a carbon-containing material to be treated under the presence of a catalyst with steam to produce a syngas containing hydrogen, carbon monoxide and carbon dioxide; (b) generating a carbon dioxide rich gas by introducing a portion of the syngas that has produced in step (a) into a combustion process, and/or separating hydrogen and carbon monoxide from the syngas produced in step (a); and (c) recycling, to step (a), the carbon dioxide rich gas that has been produced in step (b). By the method, the necessity of separating or collecting and storing carbon dioxide for reducing carbon dioxide is eliminated to minimize costs for constructing a special device and facility for the separation or collecting and storage of the carbon dioxide.
    Type: Application
    Filed: December 7, 2011
    Publication date: December 12, 2013
    Applicant: SK INNOVATION CO., LTD.
    Inventors: Jin Hong Kim, Ja Hyun Yang, IL Yong Jeong, Dae Hee Cho, Jeong Mook Kim, Ok Youn Kim, Jong Chan Lee, Gyoo Tae Kim, Joo Won Park, Sam Ryong Park, Sun Choi, Seung Hoon Oh, Hyun Min Shim
  • NITRIDE BASED SEMICONDUCTOR LIGHT EMITTING DEVICE
    Publication number: 20130299775
    Abstract: The disclosure relates to a nitride based semiconductor light emitting device with improved luminescence efficiency by increasing a recombination rate of electrons and holes contributing to luminescence, which results from matching the spatial distribution of electron and hole wave functions. The nitride based semiconductor light emitting device according to the present invention includes an n-type nitride layer, an active layer formed on the n-type nitride layer, and a p-type nitride layer formed on the active layer. At this stage, a strain control layer, and the at least one layer has a larger energy bandgap than a quantum well layer in the active layer. The strain control layer is disposed in an area where the quantum well layer of the active layer is formed. Moreover, an energy bandgap of the strain control layer is less than that of quantum barrier of the active layer.
    Type: Application
    Filed: September 1, 2011
    Publication date: November 14, 2013
    Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE
    Inventors: Seong Ran Jeon, Young Ho Song, Jae Bum Kim, Young Woo Kim, Woo Young Cheon, Jin Hong Kim