Patents by Inventor Ji Hwan Park

Ji Hwan Park 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: 20190244820
    Abstract: A method for fabricating a semiconductor device includes: forming a gate trench in a semiconductor substrate; forming a gate dielectric layer over a bottom surface and sidewalls of the gate trench; forming a first work function layer over the gate dielectric layer; doping a work function adjustment element to form a second work function layer which overlaps with the sidewalls of the gate trench; forming a gate conductive layer that partially fills the gate trench; and forming doped regions inside the semiconductor substrate on both sides of the gate trench.
    Type: Application
    Filed: April 12, 2019
    Publication date: August 8, 2019
    Inventors: Tae-Su JANG, Jin-Chul PARK, Ji-Hwan PARK, Il-Sik JANG, Seong-Wan RYU, Se-In KWON, Jung-Ho SHIN, Dae-Jin HAM
  • Publication number: 20190170920
    Abstract: One embodiment of a camera module comprises: a lens part; a front body on which the lens part is mounted; a substrate part which is disposed apart from the lens part in a first direction and coupled to the front body; an image sensor which is disposed on the substrate part and disposed opposite to the lens part; and a first adhesive part which is disposed between the front body and the substrate part, wherein the front body and the substrate part are coupled by the first adhesive part, and at least one through-hole is formed between the front body and the substrate part.
    Type: Application
    Filed: July 7, 2017
    Publication date: June 6, 2019
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Ji Hwan Park, Myoung Jin An, Dong Wook Park
  • Patent number: 10304684
    Abstract: A method for fabricating a semiconductor device includes: forming a gate trench in a semiconductor substrate; forming a gate dielectric layer over a bottom surface and sidewalls of the gate trench; forming a first work function layer over the gate dielectric layer; doping a work function adjustment element to form a second work function layer which overlaps with the sidewalls of the gate trench; forming a gate conductive layer that partially fills the gate trench; and forming doped regions inside the semiconductor substrate on both sides of the gate trench.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: May 28, 2019
    Assignee: SK hynix Inc.
    Inventors: Tae-Su Jang, Jin-Chul Park, Ji-Hwan Park, Il-Sik Jang, Seong-Wan Ryu, Se-In Kwon, Jung-Ho Shin, Dae-Jin Ham
  • Publication number: 20190132954
    Abstract: A device for fixing a camera module, comprising: a base part; and a fixing unit including a first fixing part for supporting one side of each of a plurality of boards, and a second fixing part for supporting the other side facing one side of each of the plurality of boards, wherein the plurality of first fixing parts extends in a first direction from the base part, and includes a plurality of protruding parts protruding in the direction perpendicular to the first direction in order to support one side of each of the plurality of boards, and the plurality of second fixing parts extends in the first direction from the base part, and includes a plurality of protruding parts for supporting the other side of each of the plurality of boards.
    Type: Application
    Filed: April 14, 2017
    Publication date: May 2, 2019
    Inventors: KWANG SUNG KIM, JI HWAN PARK, YONG TAE PARK, BEOM SEOK YU
  • Publication number: 20190023860
    Abstract: Provided are a siloxane resin of chemical formula 1, a composition for a window film, the composition containing a cross-linking agent and an initiator, a flexible window film formed therefrom, and a flexible display device comprising the same.
    Type: Application
    Filed: October 7, 2016
    Publication date: January 24, 2019
    Applicants: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Min Hye KIM, Kyoung Ku KANG, Ji Hwan PARK, Chang Soo WOO, Ji Sun IM, Seung Woo JANG, Jin Hee CHOI, Dong Il HAN
  • Publication number: 20180371189
    Abstract: Provided are a window film composition, a flexible window film formed therefrom and a flexible display device containing the same, the composition comprising: a crosslinking agent represented by RX—X—Z—Y—RY (RX and RY each independently represent a glycidyl group, a glycidyl group-containing functional group, an alicyclic epoxy group or an alicyclic epoxy group-containing functional group); an epoxy group-containing siloxane resin; and an initiator.
    Type: Application
    Filed: July 22, 2016
    Publication date: December 27, 2018
    Applicants: SAMSUNG SDI CO., LTD., SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Woo JANG, Kyoung Ku KANG, Min Hye KIM, Ji Hwan PARK, Chang Soo WOO, Ji Sun IM, Dong Il HAN
  • Publication number: 20180355175
    Abstract: Provided is a composition for window films comprising a siloxane resin of formula 1, a crosslinking agent and an initiator, a flexible window film formed therefrom, and a flexible display device comprising the same. (R1SiO3/2)x(R2SiO3/2)y(R3R4SiO2/2)z(SiO4/2)w (in formula 1, R1 is a functional group containing an alicyclic epoxy group, R2 is a functional group containing a glycidyl group, R3 and R4 are each independently a hydrogen, a functional group containing an alicyclic epoxy group, a functional group containing a glycidyl group, an optionally substituted C1 to C20 alkyl group, an optionally substituted C5 to C20 cycloalkyl group or an optionally substituted C6 to C20 aryl group, wherein 0<x<1, 0<y?0.5, 0?z<1, 0?w<1, and x+y+z+w=1).
    Type: Application
    Filed: September 6, 2016
    Publication date: December 13, 2018
    Inventors: Dong Il HAN, Kyoung Ku KANG, Min Hye KIM, Ji Hwan PARK, Chang Soo WOO, Ji Sun IM, Seung Woo JANG
  • Publication number: 20180356705
    Abstract: A photonic radiator device forming a photonic phased array antenna includes a light waveguide including a waveguide clad and a waveguide core using a semiconductor material, and a grating periodically formed an upper or lower part of the light waveguide. The photonic radiator device receives an input light wave in a direction of the grating and the light waveguide and radiates an output light wave to a space by using scattering from the grating.
    Type: Application
    Filed: December 1, 2015
    Publication date: December 13, 2018
    Inventors: Hyo Hoon PARK, Jong Hun KIM, Sun Kyu HAN, Ji Hwan PARK
  • Publication number: 20180309912
    Abstract: One embodiment relates to a camera module comprising: a housing; a first printed circuit board having an image sensor mounted thereon, and loaded in the housing such that the image sensor is accommodated in the housing; a second printed circuit board and a third printed circuit board sequentially arranged on the lower part of the first printed circuit board in the vertical direction; a support unit arranged in the housing while accommodating the first printed circuit board therein, and having a stepped portion including a first loading portion at which the second printed circuit board is placed and a second loading portion at which the third printed circuit board is placed; and a fixing unit coupled to the housing by penetrating through a first groove portion and a second groove portion, which are respectively formed at the edge parts of the second printed circuit board and the third printed circuit board, and through a third groove portion formed at the edge part of the support unit.
    Type: Application
    Filed: October 21, 2016
    Publication date: October 25, 2018
    Inventors: JI HWAN PARK, MYOUNG JIN AN
  • Publication number: 20180244953
    Abstract: Provided are: a composition for a window film, containing a silicone resin comprising chemical formula 1 below, a cross-linking agent, and an initiator; a window film formed therefrom; and a flexible display device comprising the same. (R1SiO3/2)x(SiO3/2-Q-SiO3/2)y(R2SiO3/2)z (In chemical formula 1, R1 and R2 are each independently a cycloaliphatic epoxy group, a cycloaliphatic epoxy group-containing functional group, a glycidyl group, or a glycidyl group-containing functional group; Q is R3 or -A1-T-A2-; R3 is a substituted or unsubstituted C1 to C10 alkylene group, or a substituted or unsubstituted C6 to C30 arylene group; A1 and A2 are each independently a single bond, or a substituted or unsubstituted C1 to C5 alkylene group; T is a mono- or polyalkylene oxide group, or an imide group-containing functional group; and 0<x<1, 0<y<1, 0?z<1, and x+y+z=1.
    Type: Application
    Filed: August 25, 2016
    Publication date: August 30, 2018
    Inventors: Chang Soo WOO, Kyoung Ku KANG, Min Hye KIM, Ji Hwan PARK, Ji Sun IM, Seung Woo JANG, Dong Il HAN
  • Publication number: 20180246390
    Abstract: A photonic radiator forming a photonic phased array antenna includes a light waveguide including a waveguide clad and a waveguide core using semiconductor materials, and a grating periodically formed on an upper or lower part of the light waveguide, wherein the photonic radiator receives an input light wave in a direction of the grating and the light waveguide, radiates an output light wave to a space through scattering from the grating, and varies an effective refractive index of the grating through voltage supply or current injection in the vicinity of the photonic radiator to adjust a radiation angle of the output light wave that is radiated to the space.
    Type: Application
    Filed: December 1, 2015
    Publication date: August 30, 2018
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Hyo-Hoon Park, Jong-Hun Kim, Ji-Hwan Park
  • Patent number: 10056283
    Abstract: An apparatus and a method for aligning a substrate are disclosed. In one aspect, the substrate aligning apparatus includes a stage configured to support a plurality of substrates, a supporting pin placed in the stage to support the substrates and an alignment clamp configured to respectively move each of the substrates to align the substrates. The alignment clamp can respectively align at least two of the substrates with reference to an alignment reference position as a two-dimensional coordinate system which includes a first axis and a second axis crossing the first axis and is set on an imaginary plane by the first and second axes.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: August 21, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Wan Park, Ji Hwan Park
  • Publication number: 20180215948
    Abstract: Provided are: a composition for a window film, containing a siloxane resin including chemical formula 1, a cross-linking agent, and an initiator; a flexible window film formed therefrom; and a flexible display device including the same.
    Type: Application
    Filed: July 22, 2016
    Publication date: August 2, 2018
    Inventors: Min Hye KIM, Kyoung Ku KANG, Ji Hwan PARK, Chang Soo WOO, Ji Sun IM, Seung Woo JANG, Dong Il HAN
  • Publication number: 20180174845
    Abstract: A method for fabricating a semiconductor device includes: forming a gate trench in a semiconductor substrate; forming a gate dielectric layer over a bottom surface and sidewalls of the gate trench; forming a first work function layer over the gate dielectric layer; doping a work function adjustment element to form a second work function layer which overlaps with the sidewalls of the gate trench; forming a gate conductive layer that partially fills the gate trench; and forming doped regions inside the semiconductor substrate on both sides of the gate trench.
    Type: Application
    Filed: September 25, 2017
    Publication date: June 21, 2018
    Inventors: Tae-Su JANG, Jin-Chul PARK, Ji-Hwan PARK, Il-Sik JANG, Seong-Wan RYU, Se-In KWON, Jung-Ho SHIN, Dae-Jin HAM
  • Publication number: 20180175042
    Abstract: A method for fabricating a semiconductor device includes: forming a transistor in a semiconductor substrate; forming a capacitor including a hydrogen-containing top electrode over the transistor; and performing an annealing process for hydrogen passivation after the capacitor is formed.
    Type: Application
    Filed: September 11, 2017
    Publication date: June 21, 2018
    Inventors: Il-Sik JANG, Ji-Hwan PARK, Mi-Ri LEE, Bong-Seok JEON, Yong-Soo JOUNG, Sun-Hwan HWANG
  • Publication number: 20180112105
    Abstract: Provided are a composition for a window film, a flexible window film formed therefrom, and a flexible display device comprising same, the composition for a window film comprising: a first silicone resin comprising chemical formula 1; a second silicone resin containing a crosslinkable functional group and one or more among a Q unit and a bridge unit; a crosslinking agent; and an initiator. (R1SiO3/2)x([R2R3SiO2/2]n)y(R4R5SiO2/2)z(R6R7R8SiO1/2)w (where R1 is a crosslinkable functional group; R2 and R3 are each independently a methyl group; R4 and R5 are each independently hydrogen, a crosslinkable functional group, an unsubstituted or substituted C1-C20 alkyl group, or an unsubstituted or substituted C5-C20 cycloalkyl group; R6, R7, and R8 are each independently hydrogen, a crosslinkable functional group, an unsubstituted or substituted C1-C20 alkyl group, an unsubstituted or substituted C5-C20 cycloalkyl group, or an unsubstituted or substituted C6-C30 aryl group; n is an integer from 7 to 100; 0<x<1, 0.
    Type: Application
    Filed: April 22, 2016
    Publication date: April 26, 2018
    Inventors: Dong Il HAN, Kyoung Ku KANG, Min Hye KIM, Ji Hwan PARK, Chang Soo WOO, Ji Sun IM, Seung Woo JANG
  • Publication number: 20180030273
    Abstract: A composition for a window film including a first silicon resin including a compound represented by Formula 1; a second silicon resin including a crosslinkable functional group and at least one of a Q unit and a bridge unit; a crosslinking agent; and an initiator, a flexible window film formed therefrom, and a flexible display device including the same are disclosed.
    Type: Application
    Filed: April 22, 2016
    Publication date: February 1, 2018
    Inventors: Dong Il HAN, Kyoung Ku KANG, Min Hye KIM, Ji Hwan PARK, Chang Soo WOO, Ji Sun IM, Seung Woo JANG
  • Publication number: 20170293074
    Abstract: A photonic radiator used for a photonic phased array antenna includes a waveguide including a waveguide clad and a waveguide core that uses semiconductor materials, and a grating that radiates an output light wave to a space by using scattering of an input light wave incident in a direction of the waveguide.
    Type: Application
    Filed: April 7, 2017
    Publication date: October 12, 2017
    Inventors: Hyo-Hoon Park, Jong-Hun Kim, Sun-Kyn Han, Ji-Hwan Park
  • Patent number: 9703176
    Abstract: A camera module includes a lens holder, a base coupled to the lens holder and integrally formed with a cable by being molded with the cable, and a sealing member positioned at a coupled surface between the lens holder and the base. The lens holder includes a lens barrel including a first concave unit formed at a front surface with a hollow hole part to accommodate a first O-ring, and a second concave unit formed at a periphery to accommodate a second O-ring. A lens unit includes a front lens arranged at a front surface of a lens barrel and includes at least one lens arranged at the hollow hole part of the lens barrel, and a retainer including a recess groove configured to accommodate a third O-ring configured to fix the front lens by being formed at a periphery to be coupled at an inner surface to the periphery of the lens barrel.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: July 11, 2017
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Ji Hwan Park, Sang Yeal Han, Min Woo Lee, Jin Ho Lee, Seung Man Jeong
  • Patent number: 9536539
    Abstract: A nonlinear acoustic echo signal suppression system and method using a Volterra filter is disclosed. The nonlinear acoustic echo signal suppression system includes an acoustic echo signal estimator configured to estimate a nonlinear acoustic echo signal by using a Volterra filter in a frequency filter, and a near-end talker speech signal generator configured to generate a near-end talker speech signal, in which the nonlinear acoustic echo signal is suppressed, by using a gain function based on a statistical model.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: January 3, 2017
    Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Joon Hyuk Chang, Ji Hwan Park