Patents by Inventor Hyun Bang

Hyun Bang 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: 20140118001
    Abstract: The fault current detecting circuit includes: a current detection unit that outputs a current detection signal; a first comparing circuit unit that compares the current detection signal with a predetermined reference current value and outputs a first output signal; a differentiator that differentiates the current detection signal to output a change slope of the current detection signal; a second comparing circuit unit that compares the change slope with a predetermined reference change slope value and outputs a second output signal; a third comparing circuit unit that compares the current detection signal with a predetermined current detection limit reference value and output a third output signal; and a trip determining unit that outputs a trip control signal only when the first output signal and the second output signal are maintained to be received and the third output signal is not received.
    Type: Application
    Filed: October 10, 2013
    Publication date: May 1, 2014
    Applicant: LSIS CO., LTD.
    Inventors: Seung Hyun BANG, Hae Yong PARK, Gyeong Ho LEE, Jung Wook SIM, Won Joon CHOE, Min Jee KIM
  • Publication number: 20140062224
    Abstract: There is provided a vibration generating device, including: a housing including an inner space; a shaft provided in the inner space of the housing in an axial direction; a frame including a shaft hole into which the shaft is fitted; a bearing member mounted on the frame to be vibrated in a state of contact with the shaft; a vibrating part mounted on an outer surface of the frame and including a magnetic field generation part; elastic members mounted on both ends of the vibrating part in the axial direction; and a coil provided in the inner space and vibrating the vibrating part by interaction with the magnetic field generation part.
    Type: Application
    Filed: November 21, 2012
    Publication date: March 6, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Yong Tae KIM, Je Hyun BANG, Jung Taek HONG, Dong Su Moon
  • Patent number: 8652273
    Abstract: There are provided a steel for deep drawing, and a method for manufacturing the steel and a high pressure container. The steel for deep drawing includes, by weight: C: 0.25 to 0.40%, Si: 0.15 to 0.40%, Mn: 0.4 to 1.0%, Al: 0.001 to 0.05%, Cr: 0.8 to 1.2%, Mo: 0.15 to 0.8%, Ni: 1.0% or less, P: 0.015% or less, S: 0.015% or less, Ca: 0.0005 to 0.002%, Ti: 0.005 to 0.025%, B: 0.0005 to 0.0020% and the balance of Fe and inevitable impurities, wherein a microstructure of the steel has a triphase structure of ferrite, bainite and martensite. The steel for deep drawing may be useful to further improve the strength without the deterioration of the toughness by adding a trace of Ti and B, compared to the conventional steels having a strength of approximately 1100 MPa.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: February 18, 2014
    Assignee: Posco
    Inventors: Soon Taik Hong, Sung Ho Jang, Ki Hyun Bang
  • Publication number: 20140017843
    Abstract: Various aspects of the present invention, for example and without limitation, comprise a semiconductor device package and/or method for manufacturing a semiconductor device package. Such a device package may, for example, comprise a MEMS device package.
    Type: Application
    Filed: July 9, 2013
    Publication date: January 16, 2014
    Inventors: Jong Dae Jung, Dong Hyun Bang, Yung Woo Lee, EunNaRa Cho, Byung Jun Kim
  • Publication number: 20130316202
    Abstract: Disclosed is a battery cell holder configured so that a cylindrical battery cell is mounted therein, the battery cell holder including an upper cover including a first main body to cover an upper part of the battery cell in a state in which a first electrode terminal of the battery cell is exposed and at least one first extension fastening part extending downward from the first main body and a lower cover including a second main body to cover a lower part of the battery cell in a state in which a second electrode terminal of the battery cell having a polarity opposite to that of the first electrode terminal is exposed and at least one second extension fastening part extending upward from the second main body.
    Type: Application
    Filed: July 26, 2013
    Publication date: November 28, 2013
    Applicant: LG CHEM, LTD.
    Inventors: Seung Hyun BANG, Sooryoung KIM, Gi Hwan KWON, Bum CHOI, Kyung Min LEE
  • Publication number: 20130292011
    Abstract: According to one aspect, provided is a high-strength steel sheet having superior toughness at cryogenic temperature, comprising, in weight percentage, 0.02 to 0.06% of C, 0.1 to 0.35% of Si, 1.0 to 1.6% of Mn, 0.02% or less (but not 0%) of Al, 0.7 to 2.0% of Ni, 0.4 to 0.9% of Cu, 0.003 to 0.015% of Ti, 0.003 to 0.02% of Nb, 0.01% or less of P, 0.005% or less of S, the remainder being Fe and unavoidable impurities, wherein the high-strength steel sheet satisfies the condition of [Mn]+5.4[Si]+26[Al]+32.8[Nb]<4.3 where [Mn], [Si], [Al], and [Nb] indicate contents of Mn, Si, Al, and Nb in weight percentage, respectively. The steel sheet secures toughness when used as structural steel materials for ships, offshore structures, or the like, or steel materials for tanks for storing and carrying liquefied gases, which are exposed to an extreme low temperature environment.
    Type: Application
    Filed: December 27, 2011
    Publication date: November 7, 2013
    Applicant: POSCO
    Inventors: Woo-Gyeom Kim, Sang-Ho Kim, Ki-Hyun Bang, In-Shik Suh
  • Patent number: 8536745
    Abstract: Disclosed herein is a linear vibrator having a mass body which is accommodated in a casing defining an internal space and is vibrated. The linear vibrator includes a bracket supporting the linear vibrator from a lower position. The bracket has a depression in a bottom thereof such that a coil lead wire of a coil is placed in the depression, thus preventing friction between the coil lead wire and a movable unit.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: September 17, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Kwang Hyung Lee, Jun Kun Choi, Hwa Young Oh, Jee Sung Lee, Je Hyun Bang, Yong Jin Kim, Kyung Ho Lee, Seok Jun Park
  • Publication number: 20130157085
    Abstract: Disclosed herein is a battery pack including (a) a battery cell array comprising two or more battery cells, each of which has an electrode assembly of a cathode/separator/anode structure disposed in a battery case together with an electrolyte in a sealed state, arranged in the lateral direction, (b) a protection circuit module (PCM) including connection terminals connected to electrode terminals of the battery cells by resistance welding, metal plates to electrically connect the battery cells to each other, and a protection circuit to control an operation of the battery pack, the PCM being connected to the upper end of the battery cell array, and (c) a pack case in which the battery cell array and the protection circuit module are disposed, wherein electrical connection regions between cathode terminals of the battery cells and the protection circuit module are configured to have a structure in which conductive plates attached to the tops of the respective connection terminals of the protection circuit module
    Type: Application
    Filed: May 21, 2011
    Publication date: June 20, 2013
    Applicant: LG CHEM, LTD.
    Inventors: Seung Hyun Bang, Hyun Han, Chun Yeon Kim, Bum Choi, Sooryoung Kim, Young Sun Park
  • Publication number: 20130157084
    Abstract: Disclosed herein is a battery pack including a battery cell array including two or more battery cells, each of which has an electrode assembly of a cathode/separator/anode structure disposed in a battery case together with an electrolyte in a sealed state, arranged in the lateral direction, a protection circuit module (PCM) connected to the upper end of the battery cell array to control the operation of the battery pack, a pack case in which the battery cell array and the protection circuit module are disposed, and a spacer mounted between the pack case and the battery cell array to provide a space accommodating the increase in thickness of the battery cell array during charge and discharge of the battery pack.
    Type: Application
    Filed: May 21, 2011
    Publication date: June 20, 2013
    Applicant: LG CHEM, LTD.
    Inventors: Seung Hyun Bang, Young Sun Park, Chun Yeon Kim, Ho Sang Kwon
  • Patent number: 8446055
    Abstract: A linear type vibration motor having a magnet casing is disclosed. The linear type vibration motor in accordance with an embodiment of the present invention includes a magnet assembly having a pair of magnets, in which same magnetic poles thereof face each other, a magnet casing, which has a hollow part formed therein and houses the magnet assembly in the hollow part, a base, which has a bobbin formed thereon and in which the magnet casing is inserted into the bobbin, a coil, which is coupled to the bobbin, a weight, which is coupled to both ends of the magnet casing, and a pair of elastic bodies, which are interposed between either end of the base and either end of the weight, respectively. Thus, the operating lifetime of the linear type vibration motor can be extended, and this arrangement can prevent the linear type vibration motor from being damaged by an external shock.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: May 21, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jae-Woo Jun, Jun-Kun Choi, Hwa-Young Oh, Jee-Sung Lee, Yong-Jin Kim, Kyung-Ho Lee, Seok-Jun Park, Kwang-Hyung Lee, Je-Hyun Bang
  • Publication number: 20130043017
    Abstract: Provided is a heat sinking plate, the plate formed with a square-shaped opening of a predetermined length when viewed from the other direction of a rectangular metal plate by erecting four triangles obtained by diagonally and crossly cutting a square of a predetermined length to one direction of the metal plate at a predetermined first angle relative to the metal plate.
    Type: Application
    Filed: August 7, 2012
    Publication date: February 21, 2013
    Applicant: LSIS CO., LTD.
    Inventors: Min Jee KIM, Jung Wook SIM, Won Joon CHOE, Gyeong Ho LEE, Seung Hyun BANG, Hae Yong PARK
  • Publication number: 20130021707
    Abstract: Provided is a protection coordination system, the system includes a current limiter arranged on a line between a first and a relays to limit a fault current generated to within a predetermined scope.
    Type: Application
    Filed: July 11, 2012
    Publication date: January 24, 2013
    Applicant: LSIS CO., LTD.
    Inventors: Seung Hyun BANG, Kwon Bae PARK, Won Joon CHOE, Jung Wook SIM, Gyeong Ho LEE, Hae Yong PARK, Min Jee KIM
  • Publication number: 20130021705
    Abstract: Provided is a fault current limiter, the limiter including a detector detecting an inflow of a fault current and transmitting a turn-off signal to a power semiconductor element; the power semiconductor element changed to an OFF state by the turn-off signal; and a resistance element connected in parallel to the power semiconductor element to block the fault current.
    Type: Application
    Filed: July 6, 2012
    Publication date: January 24, 2013
    Applicant: LSIS CO., LTD.
    Inventors: Jung Wook SIM, Won Joon CHOE, Gyeong Ho LEE, Seung Hyun BANG, Min Jee KIM, Hae Yong PARK
  • Publication number: 20130021067
    Abstract: Provided is a method for driving an IGBT, wherein a transient voltage applied across the IGBT is reduced by reducing a slope of a gate-emitter voltage of IGBT.
    Type: Application
    Filed: June 21, 2012
    Publication date: January 24, 2013
    Applicant: LSIS CO., LTD.
    Inventors: Gyeong Ho LEE, Hae Yong PARK, Seung Hyun BANG, Jung Wook SIM, Won Joon CHOE, Min Jee KIM
  • Publication number: 20130021706
    Abstract: Provided is a fault current limiter, the limiter including a detector detecting an inflow of a fault current and transmitting a turn-on signal to a first switch and transmitting a turn-off signal to a power semiconductor element, the power semiconductor element changed to an OFF state by the turn-off signal, the first switch forming a current limiting circuit by being switched to an ON state by the turn-on signal, and a resistance element blocking the fault current, wherein the series connection between the resistance element and the first switch is connected in parallel to the power semiconductor element.
    Type: Application
    Filed: July 6, 2012
    Publication date: January 24, 2013
    Applicant: LSIS CO., LTD.
    Inventors: Jung Wook SIM, Won Joon CHOE, Gyeong Ho LEE, Seung Hyun BANG, Hae Yong PARK, Min Jee KIM
  • Patent number: 8335060
    Abstract: The present invention is related to a hybrid fault current limiter comprising a switching unit detaching a moving contact located on a cable and transmitting a trip signal if a fault current is flowed at an electric power system, a semiconductor switching unit connected in series with the switching unit and configured to be turned off to limit the flow of the fault current when the trip signal is transmitted, and a circuit breaking unit connected in parallel to the switching unit and the semiconductor switching unit and configured to limit the fault current detoured from the switching unit and the semiconductor switching unit. The present invention provides rapid treatment for the fault current problem by applying the algorithm sensing the occurrence of the fault current and the algorithm limiting the fault current simultaneously.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: December 18, 2012
    Assignee: LS Industrial Systems Co., Ltd.
    Inventors: Seung Hyun Bang, Kwon Bae Park, Jung Wook Sim, Won Joon Choe, Gyeong Ho Lee
  • Patent number: 8288898
    Abstract: A linear vibrator is disclosed. In accordance with an embodiment of the present invention, the linear vibrator includes a base, a coil unit, which is coupled to the base, a magnet, which is coupled to the coil unit such that the magnet can move relatively with respect to the coil unit, and a leaf spring, which is interposed between the magnet and the base and includes a plurality of plate-shaped members having center portions thereof being separated from one another and both respective ends thereof being coupled to one another. Thus, the linear vibrator can increase the range of displacement in the leaf spring and increase the magnitude of vibration in the linear vibrator.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: October 16, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jae-Woo Jun, Jun-Kun Choi, Hwa-Young Oh, Yong-Jin Kim, Kyung-Ho Lee, Seok-Jun Park, Kwang-Hyung Lee, Je-Hyun Bang
  • Patent number: 8278786
    Abstract: A linear vibrator is disclosed. The linear vibrator in accordance with an embodiment of the present invention includes a base, a coil unit, which is coupled to the base, a magnet assembly, which forms a closed circuit of a magnetic force perpendicular to an electric current flowing through the coil unit and in which the magnet assembly relatively moves with respect to the coil unit, and an elastic member, which elastically supports the magnet assembly. Thus, a linear vibrator with an increased driving force can be provided by preventing the leakage of magnetic flux.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: October 2, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Ki-Suk Woo, Kyung-Ho Lee, Jun-Kun Choi, Yong-Jin Kim, Hwa-Young Oh, Je-Hyun Bang, Young-Bok Yoon, Suck-Jun Park, Kwang-Hyung Lee
  • Patent number: 8258657
    Abstract: A vibration motor is disclosed. In accordance with an embodiment of the present invention, the vibration motor includes a base, a vibrator, which reciprocates in the base, a protruding part, which is formed on at least one of the base and the vibrator, and an elastic body, which is interposed between the base and the vibrator and has a through-part formed therein and in which the protruding part is inserted into the through-part and the elastic body is coupled to the base or the vibrator by caulking or bending the protruding part which is protruded through the through-part. Thus, the vibration motor can have a uniform resonant frequency characteristic since a spring is coupled by way of caulking or bending.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: September 4, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Yong-Jin Kim, Hwa-Young Oh, Jee-Sung Lee, Seok-Jun Park, Je-Hyun Bang, Kwang-Hyung Lee, Kyoung-Ho Lee, Jun-Kun Choi, Ki-Suk Woo
  • Publication number: 20120187780
    Abstract: There is provided an apparatus for generating vibrations, the apparatus including: a lower case made of a non-magnetic material; a coil plate mounted on the lower case and made of a magnetic material so as to reduce magnetic force leakage; a coil mounted on the coil plate; and a motion element including a magnet disposed to be opposite to the coil such that an electromagnetic force is generated by interaction with the coil.
    Type: Application
    Filed: June 24, 2011
    Publication date: July 26, 2012
    Inventors: Je Hyun BANG, Suck Jun Park, Jun Kun Choi, Yong Jin Kim