Patents by Inventor Young-Dae Ko

Young-Dae Ko 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: 9964344
    Abstract: A magnetic cooling apparatus including a plurality of magnetic regenerators including a plurality of magnetocaloric materials to emit heat when magnetized and to absorb heat when demagnetized. The magnetic regenerators are rotatably disposed on a circumference having a predetermined radius, at least one coil is disposed on the circumference and coupled to the magnetic regenerators, and a plurality of permanent magnets is provided inside and outside the circumference to generate a magnetic field to magnetize or demagnetize the magnetic regenerators. The at least one coil interacts with the magnetic field generated by the permanent magnets to rotate the magnetic regenerators. The coil interacting with the magnetic field to magnetize or demagnetize the magnetic regenerators is coupled to the magnetic regenerators such that the magnetic regenerators reciprocate or rotate, thereby minimizing a size of the magnetic cooling apparatus, relative to the use of a motor.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: May 8, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin Han Kim, Il Ju Mun, Woo Hyek Choi, Young Dae Ko, Keon Kuk, Min Soo Kim
  • Publication number: 20170057161
    Abstract: An object forming apparatus and a controlling method thereof are provided. The object forming apparatus includes an injector configured to inject an object forming material based on object data, a base part in which an object is formed through stacking of the injected object forming material, a sensor configured to detect a height of the object stacked on the base part, and a controller configured to control the injector based on a signal output from the sensor.
    Type: Application
    Filed: August 5, 2016
    Publication date: March 2, 2017
    Inventors: Keon KUK, Eun-bong HAN, Young-dae KO, Hyeon-hyang KIM, O-hyun BEAK, Jun-hee LEE, Yeon-kyoung JUNG
  • Publication number: 20160262292
    Abstract: A circuit element package, a manufacturing method thereof, and a manufacturing apparatus thereof are provided. The circuit element package includes a circuit element disposed on a printed circuit board, an insulating layer covering the circuit element, a first shielding layer covering a side surface of the insulating layer, and a second shielding layer covering an upper surface of the insulating layer and electrically connected to the first shielding layer.
    Type: Application
    Filed: March 4, 2016
    Publication date: September 8, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keon KUK, Young-dae KO, O-hyun BEAK, Eun-bong HAN, Hyeon-hyang KIM, Yeon-kyoung JUNG, Il-ju MUN
  • Patent number: 9063495
    Abstract: A fusing unit and an image forming apparatus to form an image on a recording medium including a fusing unit are provided. The image forming apparatus includes a heating member having a surface divided into a plurality of heating regions and heating the recording medium, and a pressurizing member to apply pressure to the recording medium, the fusing unit fusing the image to the recording medium by applying heat and pressure to the recording medium, a driving unit to supply rotational force to the pressurizing member, and a power supply to supply power to the heating member and the driving unit, wherein the heating regions have different heating values per unit area. The image forming apparatus prevents overheating of a paper-contact heating region without idling the fusing unit in order to radiate heat accumulated in the paper-contact heating region.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: June 23, 2015
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SANG-A FRONTEC
    Inventors: Jun O Kim, Dae Hwan Kim, Ji Hong Jung, Seung Oh Ko, Young Dae Ko, Jin Han Kim, Jong Man Choi
  • Publication number: 20150007582
    Abstract: A magnetic cooling apparatus including a plurality of magnetic regenerators including a plurality of magnetocaloric materials to emit heat when magnetized and to absorb heat when demagnetized. The magnetic regenerators are rotatably disposed on a circumference having a predetermined radius, at least one coil is disposed on the circumference and coupled to the magnetic regenerators, and a plurality of permanent magnets is provided inside and outside the circumference to generate a magnetic field to magnetize or demagnetize the magnetic regenerators. The at least one coil interacts with the magnetic field generated by the permanent magnets to rotate the magnetic regenerators. The coil interacting with the magnetic field to magnetize or demagnetize the magnetic regenerators is coupled to the magnetic regenerators such that the magnetic regenerators reciprocate or rotate, thereby minimizing a size of the magnetic cooling apparatus, relative to the use of a motor.
    Type: Application
    Filed: June 24, 2014
    Publication date: January 8, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin Han KIM, II Ju Mun, Woo Hyek Choi, Young Dae Ko, Keon Kuk, Min Soo Kim
  • Patent number: 8897659
    Abstract: The apparatus includes a heating roller that generates heat for melting toner attached to a printing medium; a first induction coil that is disposed outside the heating roller and heats the heating roller by using induced current generated according to current flowing through the first induction coil; two second induction coils that are disposed at upper portions of both ends of the first induction coil and heat the heating roller by using induced current generated according to current flowing through the two second induction coils; a power supply unit that supplies current to the first induction coil and the two second induction coils; and a control unit that controls the power supply unit to supply current flowing in the same direction or different directions to the first induction coil and the second induction coils according to the size of paper fed into the heating roller.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: November 25, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dae-hwan Kim, Keon Kuk, Jin-han Kim, Jun-o Kim, Tatsuhiro Otsuka, Young-dae Ko
  • Patent number: 8879935
    Abstract: The apparatus includes a heating roller that generates heat for melting toner attached to a printing medium; a first induction coil that is disposed outside the heating roller and heats the heating roller by using induced current generated according to current flowing through the first induction coil; two second induction coils that are disposed at upper portions of both ends of the first induction coil and heat the heating roller by using induced current generated according to current flowing through the two second induction coils; a power supply unit that supplies current to the first induction coil and the two second induction coils; and a control unit that controls the power supply unit to supply current flowing in the same direction or different directions to the first induction coil and the second induction coils according to the size of paper fed into the heating roller.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: November 4, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dae-hwan Kim, Keon Kuk, Jin-han Kim, Jun-o Kim, Tatsuhiro Otsuka, Young-dae Ko
  • Patent number: 8811877
    Abstract: An induction heating type fusing device and an image forming apparatus including the fusing device. The fusing device includes a magnetic flux generator and a compressing roller outside a fusing belt, first and second fusing rollers and a nip guide inside the fusing belt. The compressing roller compresses against the first and second fusing rollers and the nip guide to form nips, while the fusing belt is disposed between the compressing roller and the first and second fusing rollers and the nip guide.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: August 19, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-dae Ko, Keon Kuk, Jun-o Kim, Dae-hwan Kim, Tatsuhiro Otsuka, Jin-han Kim
  • Patent number: 8685550
    Abstract: The present invention relates to an organic-inorganic composite comprising bacteria and transition metal oxides and a method of manufacturing the same. More specifically, the present invention relates to an organic-inorganic composite comprising bacteria and transition metal oxides manufactured by attaching cationic transition metal precursor to bacterial surface, wherein the bacteria with high negative charge on its surface is used as a template, refluxing the bacteria and transition metal ions at room temperature in the presence of sodium borohydride (NaBH4), and inducing reduction/spontaneous oxidation, thereby having an excellent high capacity electrochemical properties, and a method of manufacturing the same.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: April 1, 2014
    Assignee: Korea Institute of Science and Technology
    Inventors: Dong-Wan Kim, HyunWoo Shim, Young Dae Ko, Kyoung Jin Choi, Jae-Gwan Park
  • Patent number: 8687995
    Abstract: A heating roller including a resistive heating layer and a fusing device including the heating roller. By separately disposing a plurality of electrodes in an axis direction of the heating roller, and by independently controlling each electrode, the heating roller may correspond to various papers having different sizes. Accordingly, the temperature of the heating roller may be stably controlled.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: April 1, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-han Kim, Byung-sang Yun, Kyung-hwan Kim, Jun-o Kim, Young-dae Ko
  • Publication number: 20140064807
    Abstract: An induction heating type fusing device and an image forming apparatus including the fusing device. The fusing device includes a magnetic flux generator and a compressing roller outside a fusing belt, first and second fusing rollers and a nip guide inside the fusing belt. The compressing roller compresses against the first and second fusing rollers and the nip guide to form nips, while the fusing belt is disposed between the compressing roller and the first and second fusing rollers and the nip guide.
    Type: Application
    Filed: November 13, 2013
    Publication date: March 6, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-dae KO, Keon KUK, Jun-o KIM, Dae-hwan KIM, Tatsuhiro OTSUKA, Jin-han KIM
  • Publication number: 20140064764
    Abstract: The apparatus includes a heating roller that generates heat for melting toner attached to a printing medium; a first induction coil that is disposed outside the heating roller and heats the heating roller by using induced current generated according to current flowing through the first induction coil; two second induction coils that are disposed at upper portions of both ends of the first induction coil and heat the heating roller by using induced current generated according to current flowing through the two second induction coils; a power supply unit that supplies current to the first induction coil and the two second induction coils; and a control unit that controls the power supply unit to supply current flowing in the same direction or different directions to the first induction coil and the second induction coils according to the size of paper fed into the heating roller.
    Type: Application
    Filed: November 6, 2013
    Publication date: March 6, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dae-hwan Kim, Keon Kuk, Jin-han Kim, Jun-o Kim, Tatsuhiro Otsuka, Young-dae Ko
  • Publication number: 20140037347
    Abstract: A fusing unit and an image forming apparatus to form an image on a recording medium including a fusing unit are provided. The image forming apparatus includes a heating member having a surface divided into a plurality of heating regions and heating the recording medium, and a pressurizing member to apply pressure to the recording medium, the fusing unit fusing the image to the recording medium by applying heat and pressure to the recording medium, a driving unit to supply rotational force to the pressurizing member, and a power supply to supply power to the heating member and the driving unit, wherein the heating regions have different heating values per unit area. The image forming apparatus prevents overheating of a paper-contact heating region without idling the fusing unit in order to radiate heat accumulated in the paper-contact heating region.
    Type: Application
    Filed: July 29, 2013
    Publication date: February 6, 2014
    Applicants: SANG-A FRONTEC, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun O KIM, Dae Hwan KIM, Ji Hong JUNG, Seung Oh KO, Young Dae KO, Jin Han KIM, Jong Man CHOI
  • Patent number: 8611803
    Abstract: An induction heating type fusing device and an image forming apparatus including the fusing device. The fusing device includes a magnetic flux generator and a compressing roller outside a fusing belt, first and second fusing rollers and a nip guide inside the fusing belt. The compressing roller compresses against the first and second fusing rollers and the nip guide to form nips, while the fusing belt is disposed between the compressing roller and the first and second fusing rollers and the nip guide.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: December 17, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-dae Ko, Keon Kuk, Jun-o Kim, Dae-hwan Kim, Tatsuhiro Otsuka, Jin-han Kim
  • Publication number: 20130259549
    Abstract: A heating roller including a resistive heating layer and a fusing device including the heating roller. By separately disposing a plurality of electrodes in an axis direction of the heating roller, and by independently controlling each electrode, the heating roller may correspond to various papers having different sizes. Accordingly, the temperature of the heating roller may be stably controlled.
    Type: Application
    Filed: May 29, 2013
    Publication date: October 3, 2013
    Applicant: SAMSUNG Electronics Co., Ltd.
    Inventors: Jin-han KIM, Byung-sang YUN, Kyung-hwan KIM, Jun-o KIM, Young-dae KO
  • Patent number: 8467696
    Abstract: The present invention provides a heating roller including a resistive heating layer and a fusing device including the heating roller. By separately disposing a plurality of electrodes in an axis direction of the heating roller, and by independently controlling each electrode, the heating roller may correspond to various papers having different sizes. Accordingly, the temperature of the heating roller may be stably controlled.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: June 18, 2013
    Assignee: SAMSUNG Electronics Co., Ltd.
    Inventors: Jin-han Kim, Byung-sang Yun, Kyung-hwan Kim, Jun-o Kim, Young-dae Ko
  • Publication number: 20110293338
    Abstract: An induction heating type fusing device and an image forming apparatus including the fusing device. The fusing device includes a magnetic flux generator and a compressing roller outside a fusing belt, first and second fusing rollers and a nip guide inside the fusing belt. The compressing roller compresses against the first and second fusing rollers and the nip guide to form nips, while the fusing belt is disposed between the compressing roller and the first and second fusing rollers and the nip guide.
    Type: Application
    Filed: May 27, 2011
    Publication date: December 1, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-dae Ko, Keon Kuk, Jun-o Kim, Dae-hwan Kim, Tatsuhiro Otsuka, Jin-han Kim
  • Publication number: 20110280601
    Abstract: The apparatus includes a heating roller that generates heat for melting toner attached to a printing medium; a first induction coil that is disposed outside the heating roller and heats the heating roller by using induced current generated according to current flowing through the first induction coil; two second induction coils that are disposed at upper portions of both ends of the first induction coil and heat the heating roller by using induced current generated according to current flowing through the two second induction coils; a power supply unit that supplies current to the first induction coil and the two second induction coils; and a control unit that controls the power supply unit to supply current flowing in the same direction or different directions to the first induction coil and the second induction coils according to the size of paper fed into the heating roller.
    Type: Application
    Filed: April 5, 2011
    Publication date: November 17, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dae-hwan Kim, Keon Kuk, Jin-han Kim, Jun-o Kim, Tatsuhiro Otsuka, Young-dae Ko
  • Patent number: 7965966
    Abstract: Disclosed are a transfer unit and an image forming apparatus having the same. The apparatus can include multiple members configured to carry developer associated with color images. The transfer unit can include multiple rollers each disposed to opposingly face a respective corresponding one of the members, a belt interposed between the rollers and the members, and a device configured to support the rollers. The rollers can include a first roller at one end of the transfer unit, a second roller at an opposite end and one or more middle rollers arranged between the first and second rollers. The device can be configured such that a rotation center of the first roller and a rotation center of the second roller define a first plane and a rotation center of the one or more middle rollers defines a second plane parallel to but not co-planar with the first plane.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: June 21, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoon-Hwak Kim, Jong-Woo Kim, Hyun-Ki Cho, Young-Dae Ko, Jong-Tae Kim
  • Publication number: 20110091251
    Abstract: A heating roller including a resistive heating layer and a fusing device including the heating roller. By separately disposing a plurality of electrodes in an axis direction of the heating roller, and by independently controlling each electrode, the heating roller may correspond to various papers having different sizes. Accordingly, the temperature of the heating roller may be stably controlled.
    Type: Application
    Filed: October 5, 2010
    Publication date: April 21, 2011
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Jin-han KIM, Byung-sang Yun, Kyung-hwan Kim, Jun-o Kim, Young-dae Ko