Patents by Inventor Woo Seok Choi

Woo Seok 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: 20220033920
    Abstract: The present invention relates to a wire rod of which softening heat treatment can be omitted, and a manufacturing method therefor. One embodiment of the present invention provides a wire rod of which softening heat treatment can be omitted, and a manufacturing method therefor, the wire rod comprising, by wt %, 0.2-0.45% of C, 0.02-0.4% of Si, 0.3-1.5% of Mn, 0.3-1.5% of Cr, 0.02-0.05% of Al, 0.01-0.5% of Mo, 0.01% or less of N, and the balance of Fe and other inevitable impurities, and having a microstructure consisting of, by area %, 40% or more of proeutectoid ferrite based on an equilibrium phase, 40% or more of regenerated pearlite and bainite, and 20% or less of martensite, and wherein the colony average size of the pearlite in the region amounting to ? to ? of the diameter is 5 ?m or less.
    Type: Application
    Filed: December 13, 2019
    Publication date: February 3, 2022
    Inventors: Jae-Seung LEE, Byoung-Gab LEE, Sang-Yoon LEE, Se-Hong MIN, Woo-Seok CHOI
  • Publication number: 20210403840
    Abstract: The present disclosure relates to a method for preparing a non-woven fabric which improves impregnation and release properties of a fabric softener in the non-woven fabric in order to apply the non-woven fabric to a dryer sheet (sheet-type fabric softener). When increasing porosity and specific surface area in a non-woven fabric made of two-component blended polyester long fibers, impregnation and release rate of a fabric softener are improved even when the non-woven fabric is lightened, making it possible to apply the non-woven fabric to a dryer sheet.
    Type: Application
    Filed: December 19, 2019
    Publication date: December 30, 2021
    Inventors: Young-shin PARK, Min-ho LEE, Jung-soon JANG, Hee-jung CHO, Woo-seok CHOI
  • Publication number: 20210377504
    Abstract: An image signal processor is provided. The image signal processor includes a white balancing block which performs white balancing on a raw RGB image of a Bayer pattern received from an image sensor on a kernel basis or in a kernel unit, a green generation block which performs cross-binning on white-balanced G pixel to generate a first green pixel, and adds a high-frequency component to which a preset weight is applied to generate a binned green pixel, a red-blue generation block which generates a U pixel and a V pixel indicating directionality, on the basis of the binned green pixel, a white-balanced R pixel, and a white-balanced B pixel, and merges the binned green pixel to each of the U pixel and the V pixel to generate a binned red pixel and a binned blue pixel and an inverse white balancing block which performs an inverse white balancing on the binned red pixel, the binned green pixel, and the binned blue pixel to output a final binning image.
    Type: Application
    Filed: February 11, 2021
    Publication date: December 2, 2021
    Inventors: Chan Young Jang, Hee Kang, Woo Seok Choi
  • Patent number: 11180642
    Abstract: A conjugated diene-based copolymer composition is provided. The conjugated diene-based copolymer composition includes a first conjugated diene-based copolymer having 20 wt % to 60 wt % of an aromatic vinyl monomer-derived repeating unit, 35 wt % to 75 wt % of a first conjugated diene-based monomer-derived repeating unit, and 1 wt % to 10 wt % of a hydroxyalkyl (meth)acrylate monomer-derived repeating unit. The first conjugated diene-based copolymer has a Mooney viscosity (MV) at 100° C. of 30 to 120. The conjugated diene-based copolymer composition also includes a second conjugated diene-based copolymer having 20 wt % to 60 wt % of an ?-methylstyrene monomer-derived repeating unit and 40 wt % to 80 wt % of a second conjugated diene-based monomer-derived repeating unit. The second conjugated copolymer has a Mooney viscosity (MV) at 100° C. of more than 120 and equal to or less than 200. A method for preparing the conjugated diene-based copolymer is also provided.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: November 23, 2021
    Inventors: Se Eun Lee, Byoung Yun Kim, Hyung Woon Yoon, Jae Min Lee, Woo Seok Choi
  • Patent number: 11178372
    Abstract: An image signal processor is provided. The image signal processor includes a white balancing block which performs white balancing on a raw RGB image of a Bayer pattern received from an image sensor on a kernel basis or in a kernel unit, a green generation block which performs cross-binning on white-balanced G pixel to generate a first green pixel, and adds a high-frequency component to which a preset weight is applied to generate a binned green pixel, a red-blue generation block which generates a U pixel and a V pixel indicating directionality, on the basis of the binned green pixel, a white-balanced R pixel, and a white-balanced B pixel, and merges the binned green pixel to each of the U pixel and the V pixel to generate a binned red pixel and a binned blue pixel and an inverse white balancing block which performs an inverse white balancing on the binned red pixel, the binned green pixel, and the binned blue pixel to output a final binning image.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: November 16, 2021
    Inventors: Chan Young Jang, Hee Kang, Woo Seok Choi
  • Publication number: 20210289150
    Abstract: Provided is an image sensing apparatus including an image sensor including a pixel array configured to output a raw image having a Bayer pattern, and an analog end configured to perform an analog binning process on groups of pixels of same colors included in same columns of each of a plurality of sub-kernels corresponding to a first green pixel, a red pixel, a blue pixel, and a second green pixel, and output median values for different colors, and a digital signal processor configured to perform a digital binning process on the median values for the different colors included in different columns of each of the plurality of sub-kernels, and output a binned image.
    Type: Application
    Filed: December 22, 2020
    Publication date: September 16, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee KANG, Chan Young Jang, Woo Seok Choi
  • Publication number: 20210198821
    Abstract: The present disclosure relates to a nonwoven fabric for primary carpet backing and a method for manufacturing same, the non-woven fabric having different colors on the two sides thereof and improved mechanical property. More specifically, the present disclosure relates to a non-woven fabric for primary carpet backing and a method for manufacturing same, wherein any one surface of the two surfaces of appears in a range of white to grey and the opposite surface thereof appears in a range of dark grey to black, so that the separate manufacture of non-woven fabrics having various colors according to carpet colors is not required, which facilitates the inventory management of the non-woven fabric, achieves color matching between a carpet pile yarn and a nonwoven fabric for primary carpet backing, and improve the efficiency of the carpet manufacturing process.
    Type: Application
    Filed: June 11, 2019
    Publication date: July 1, 2021
    Inventors: Jung-soon JANG, Min-ho LEE, Hee-jung CHO, Young-shin PARK, Woo-seok CHOI
  • Publication number: 20210189621
    Abstract: The present disclosure relates to a method for producing a nonwoven fabric that improves filtration performance when applied as a filter material. By adjusting the modification ratio of the Y-shaped cross-section of polyester filaments constituting the nonwoven fabric, when applied to a filter by increasing a specific surface area of the nonwoven fabric, it increases the collection amount of the materials to be filtered and maintains a low differential pressure, thus enabling long-term use.
    Type: Application
    Filed: June 11, 2019
    Publication date: June 24, 2021
    Inventors: Woo-seok CHOI, Min-ho LEE, Hee-jung CHO, Young-shin PARK, Jung-soon JANG
  • Patent number: 11041032
    Abstract: Provided is a method for preparing a conjugated diene-based copolymer, a conjugated diene-based copolymer prepared therefrom, and a rubber composition including the same.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: June 22, 2021
    Inventors: In Sung Jo, Byoung Yun Kim, Hyung Woon Yoon, Jae Min Lee, Woo Seok Choi
  • Patent number: 10986315
    Abstract: A pixel array in an image sensor includes first, second, third, and fourth pixel groups adjacent to each other. The first pixel group includes a plurality of first subpixels adjacent to each other and arranged in a first pattern, and a first microlens shared by the plurality of first subpixels. The second pixel group includes a plurality of second subpixels adjacent to each other and arranged in a second pattern, and a second microlens shared by the plurality of second subpixels. The third pixel group includes a plurality of third subpixels adjacent to each other and arranged in a third pattern, and a third microlens shared by the plurality of third subpixels. The fourth pixel group includes a plurality of fourth subpixels adjacent to each other and arranged in a fourth pattern, and a fourth microlens shared by the plurality of fourth subpixels.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: April 20, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Woo-Seok Choi
  • Publication number: 20210102322
    Abstract: The present disclosure relates to a method for producing a nonwoven fabric which improves the impregnation property of a fabric softener in the nonwoven fabric so as to apply the nonwoven fabric to a dryer sheet (sheet-type fabric softener). In a nonwoven fabric made of two types of polyester long fiber mixed filament yarns, by widening the specific surface area, adjusting the evenness deviation to be small and increasing the porosity, the impregnation property of a fabric softener is improved even when the nonwoven fabric is made lightweight, and the nonwoven fabric can be applied to a dryer sheet.
    Type: Application
    Filed: March 19, 2019
    Publication date: April 8, 2021
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Young-shin PARK, Min-ho LEE, Hee-Jung CHO, Woo-seok CHOI, Jung-soon JANG
  • Patent number: 10969081
    Abstract: Disclosed are: a multi-sided luminous lighting member which is mounted to a structure having a complex three-dimensional shape, such as an automobile, so as to be used for the purpose of lighting, signaling, decoration, and the like; and a three-dimensional lighting device using the same.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: April 6, 2021
    Assignees: EXAOPTONIX INC., UTRONIX INC.
    Inventors: Ho Jun Jo, Keun Young Yang, Woo Seok Choi
  • Publication number: 20210047506
    Abstract: Provided are an acrylic-based copolymer composition, a method of preparing the same, and an acrylic-based rubber composition obtained from the acrylic-based copolymer composition. Specifically, an acrylic-based copolymer composition prepared by polymerizing the acrylic-based copolymers each at high and low temperatures and mixing the acrylic-based copolymers, thereby having improved processability is provided.
    Type: Application
    Filed: December 23, 2019
    Publication date: February 18, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Se Eun Lee, Byoung Yun Kim, Hyung Woon Yoon, Woo Seok Choi, In Sung Jo, Jae Min Lee
  • Patent number: 10823903
    Abstract: Disclosed is a lighting member that can be mounted to a structure having a complicated three-dimensional structure such as an automobile, so as to be used for the purpose of illumination, signaling, decoration, etc., the lighting member including a light-emitting diode and a light-guiding film. A lighting member using a light-guiding film according to an aspect of the present invention is morphologically defined by multiple cut surfaces which are formed by separated from a flexible light-permeable resin film by cutting.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: November 3, 2020
    Assignees: EXA ELECTRONICS CO., LTD., UTRONIX INC., EXAOPTONIX INC.
    Inventors: Ho Jun Jo, Keun Young Yang, Woo Seok Choi
  • Publication number: 20200299876
    Abstract: The present disclosure relates to a nonwoven fabric having enhanced withdrawal force for a carpet backing fabric, which is composed of a nonwoven fabric comprising 50 to 90% by weight of polyester filaments having a melting point of 250° C. or higher and 10 to 50% by weight of low-melting point copolyester filaments having a melting point of 200° C. or lower. According to the present disclosure, a nonwoven fabric comprising low-melting point polyester fibers is used as a backing fabric and the thickness of the backing fabric is controlled, so that the withdrawal force of carpets is enhanced, thereby suppressing the falling out of BCF yarns from the carpet.
    Type: Application
    Filed: September 7, 2018
    Publication date: September 24, 2020
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Gyu-in JUNG, Min-ho LEE, Hee-jung CHO, Young-shin PARK, Woo-seok CHOI, Jung-soon JANG
  • Publication number: 20200260055
    Abstract: A pixel array in an image sensor includes first, second, third, and fourth pixel groups adjacent to each other. The first pixel group includes a plurality of first subpixels adjacent to each other and arranged in a first pattern, and a first microlens shared by the plurality of first subpixels. The second pixel group includes a plurality of second subpixels adjacent to each other and arranged in a second pattern, and a second microlens shared by the plurality of second subpixels. The third pixel group includes a plurality of third subpixels adjacent to each other and arranged in a third pattern, and a third microlens shared by the plurality of third subpixels. The fourth pixel group includes a plurality of fourth subpixels adjacent to each other and arranged in a fourth pattern, and a fourth microlens shared by the plurality of fourth subpixels.
    Type: Application
    Filed: October 30, 2019
    Publication date: August 13, 2020
    Inventor: Woo-Seok CHOI
  • Publication number: 20200223960
    Abstract: Provided is a method for preparing a conjugated diene-based copolymer, a conjugated diene-based copolymer prepared therefrom, and a rubber composition including the same.
    Type: Application
    Filed: August 13, 2018
    Publication date: July 16, 2020
    Applicant: LG Chem, Ltd.
    Inventors: In Sung Jo, Byoung Yun Kim, Hyung Woon Yoon, Jae Min Lee, Woo Seok Choi
  • Publication number: 20200173626
    Abstract: Disclosed are: a multi-sided luminous lighting member which is mounted to a structure having a complex three-dimensional shape, such as an automobile, so as to be used for the purpose of lighting, signaling, decoration, and the like; and a three-dimensional lighting device using the same.
    Type: Application
    Filed: June 29, 2018
    Publication date: June 4, 2020
    Applicants: EXAOPTONIX INC., UTRONIX INC.
    Inventors: HO JUN JO, KEUN YOUNG YANG, WOO SEOK CHOI
  • Patent number: 10654994
    Abstract: The present invention relates to a styrene-butadiene rubber compound and a rubber composition for tire bead fillers including the same, and more particularly, to a styrene-butadiene rubber compound capable of improving stiffness and hardness even when styrene-butadiene rubbers having different styrene contents are used instead of a combination of a conventional natural rubber and a phenol-based resin, and a rubber composition for tire bead fillers including the same.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: May 19, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Se Eun Lee, Byoung Yun Kim, In Sung Jo, Jae Min Lee, Woo Seok Choi
  • Publication number: 20200131345
    Abstract: The present invention relates to a styrene-butadiene rubber compound and a rubber composition for tire bead fillers including the same, and more particularly, to a styrene-butadiene rubber compound capable of improving stiffness and hardness even when styrene-butadiene rubbers having different styrene contents are used instead of a combination of a conventional natural rubber and a phenol-based resin, and a rubber composition for tire bead fillers including the same.
    Type: Application
    Filed: December 28, 2016
    Publication date: April 30, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Se Eun Lee, Byoung Yun Kim, In Sung Jo, Jae Min Lee, Woo Seok Choi