Patents by Inventor Han-Jun Kim

Han-Jun 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).

  • Patent number: 11840611
    Abstract: The embodiments relate to a polyamide-based composite film that not only has excellent curl characteristics, mechanical properties, and optical properties, but also exhibits a privacy protection effect at a wide angle of view and glossiness characteristics similar to those glass at a main angle of view, and to a display device comprising the same. There are provided a polyamide-based composite film that comprises a base film comprising a polyamide-based polymer; and a functional layer disposed on the base film, wherein a glossiness control value according to Equation 1 is 0 or more, and a displace device comprising the same.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: December 12, 2023
    Assignees: SK Microworks Solutions Co., LTD., SK Microworks Co., LTD.
    Inventors: Yun Hee Seo, Sang Hun Choi, Jin Woo Lee, Jung Hee Ki, Dae Seong Oh, Han Jun Kim, Sun Hwan Kim
  • Patent number: 11820893
    Abstract: Embodiments relate to a polymer film that is excellent in folding characteristics and transparency and maintains excellent mechanical properties even after repeated elongation and shrinkage in the elastic region, a process for preparing the same, and a front panel and a display device comprising the same. The polymer film comprises a polymer resin selected from the group consisting of a polyamide-based resin and a polyimide-based resin and has an MOR0/9 of Equation A of 2% or less.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: November 21, 2023
    Assignee: SK Microworks Co., LTD.
    Inventors: Jung Hee Ki, Sunhwan Kim, Han Jun Kim, Dae Seong Oh, Jin Woo Lee, Sang Hun Choi, Gun Uk Kim
  • Patent number: 11820874
    Abstract: Embodiments relate to a polyamide-based film that is colorless and transparent, is excellent in mechanical properties and optical properties, has a wide angle of view by securing at least a certain level of luminance at various angles, and, in particular, has gloss characteristics similar to those of glass, a process for preparing the same, and a cover window comprising the same. The polyamide-based film comprises a polyamide-based polymer, wherein when the polyamide-based film is placed on a surface light source, light is irradiated from the surface light source, and the luminance value (L0) measured in the normal direction of the surface light source is 100%, the luminance value (L50) measured in the direction of 50° from the normal direction of the surface light source is 25% or more.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: November 21, 2023
    Assignee: SK Microworks Co., LTD.
    Inventors: Sang Hun Choi, Jin Woo Lee, Dae Seong Oh, Jung Hee Ki, Sunhwan Kim, Han Jun Kim, Heung Sik Kim
  • Patent number: 11795283
    Abstract: The embodiments relate to a polyamide-based film excellent in optical properties, mechanical properties, and processing suitability and to a cover window and a display device comprising the same. The polyamide-based film comprises a polyamide-base polymer, wherein a dipolar solvent compatibility represented by the following equation is 18.5 to 24: Dipolar solvent compatibility=?{square root over ((?d??1d)2+(?p??1p)2)}. In the equation, ?d is a value of a dispersible component in surface energy of the polyamide-based film, ?p is a value of a polar component in surface energy of the polyamide-based film, ?1d is a value of a dispersible component in Hansen solubility parameter of the dipolar solvent, and ?1p a value of a dipolar component in Hansen solubility parameter of the dipolar solvent.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: October 24, 2023
    Assignee: SK MICROWORKS CO., LTD.
    Inventors: Dae Seong Oh, Han Jun Kim, Sun Hwan Kim, Jin Woo Lee, Heung Sik Kim
  • Publication number: 20230312825
    Abstract: Embodiments relate to a polyamide-based film, a manufacturing method therefor, and a cover window and a display device each comprising same, wherein the polyamide-based film has excellent optical characteristics, such as transmittance, haze, and yellowness, and excellent mechanical characteristics, such as modulus and thickness uniformity. The polyamide-based film contains a polyamide-based polymer and includes a sum XRD peak obtained by adding up a first XRD peak having the maximum value in the section where the 2? value is 10° (inclusive) to 20° (exclusive) and a second XRD peak having the maximum value in the section where the 2? value is 20° to 25°, on the XRD graph, wherein the full width at half maximum of the first XRD peak is 6° or less.
    Type: Application
    Filed: September 8, 2021
    Publication date: October 5, 2023
    Inventors: Han Jun KIM, Dae Seong OH, Sun Hwan KIM, Jin Woo LEE, Heung Sik KIM, Jiyeon RYU
  • Patent number: 11766967
    Abstract: A display apparatus used for a vehicle is provided. The display apparatus may include a display unit configured to show an external environment around the vehicle and having flexibility, and a housing configured to support the display unit, in which the display unit is folded when the display apparatus is not used, the display unit is unfolded when the display apparatus is used, and an operation of the display unit is performed by a drive unit embedded in the housing.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: September 26, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Han-Jun Kim, Un-Tae Kim
  • Publication number: 20230298309
    Abstract: There is provided a multi-scale object detection device. The device includes an image frame acquisition unit for acquiring a plurality of consecutive image frames, a critical region extractor for extracting at least one second critical region from a current image frame based on at least one first critical region extracted from a previous image frame among the consecutive image frames, a multi-scale object detector whose operation involves a first object detection process for the current image frame and a second object detection process for the at least one second critical region, and an object detection integration unit for integrating the results of the first and second object detection processes.
    Type: Application
    Filed: December 29, 2022
    Publication date: September 21, 2023
    Applicant: University Industry Foundation, Yonsei University
    Inventors: Han Jun KIM, Seon Yeong HEO, Dong Kwan KIM
  • Patent number: 11731410
    Abstract: The embodiments relate to a polyamide-based composite film that has excellent curl characteristics, mechanical properties, and optical properties, as well as, in particular, is effective in preventing reflection in the visible light region, remarkably reduces the rainbow phenomenon, and achieves a texture similar to that of glass, and a display device comprising the same. There are provided a polyamide-based composite film, which comprises a base film comprising a polyamide-based polymer; and a functional layer disposed on the base film, wherein the in-plane retardation (Re) measured with light having a wavelength of 550 nm is 100 nm to 220 nm, and a display device comprising the same.
    Type: Grant
    Filed: April 27, 2022
    Date of Patent: August 22, 2023
    Assignees: SK MICROWORKS CO., LTD., SK microworks solutions Co., Ltd.
    Inventors: Yun-Hee Seo, Sang Hun Choi, Jung Hee Ki, Jin Woo Lee, Dae Seong Oh, Han Jun Kim, Sun Hwan Kim, Heung Sik Kim
  • Patent number: 11713378
    Abstract: The polymer film according to an embodiment comprises at least one polymer resin selected from the group consisting of a polyamide-based resin, a polyimide-based resin, and a polyamide-imide-based resin, and has a haze of 0.6% or less and an in-plane retardation within a specific range for each wavelength band in the visible light region. The polymer film, which has an in-plane retardation within a specific range for each wavelength band in the visible light region, is excellent in transparency and optical properties, and it can remarkably reduce the rainbow phenomenon and improve the reflection appearance.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: August 1, 2023
    Assignee: SK MICROWORKS CO., LTD.
    Inventors: Jung Hee Ki, Sunhwan Kim, Dae Seong Oh, Jin Woo Lee, Sang Hun Choi, Han Jun Kim, Heung Sik Kim
  • Publication number: 20230192956
    Abstract: The present disclosure discloses a film including a polyimide layer including an aromatic diamine compound residue and an aromatic dianhydride compound residue, wherein the polyimide layer has a loop stiffness value of 3 to 4.5 m/N based on a thickness of the polyimide layer of 50 ?m.
    Type: Application
    Filed: October 17, 2022
    Publication date: June 22, 2023
    Applicant: SKC Co., Ltd.
    Inventors: Han Jun KIM, Jin Yong LEE, Jin Woo LEE, Dae Seong OH
  • Publication number: 20230183424
    Abstract: The embodiments aim to provide a polyamide-imide-based film, which has a content of nitrogen (N) elements in the film of 6 to 7.5% by weight based on the sum of the weights of carbon (C), hydrogen (H), oxygen (O), and nitrogen (N) elements in the film, whereby it is uniform in quality and excellent in mechanical properties and optical properties, a process for preparing the same, and a cover window and a display device comprising the same.
    Type: Application
    Filed: October 7, 2022
    Publication date: June 15, 2023
    Inventors: Han Jun KIM, Jin Woo LEE, Jin Yong LEE
  • Patent number: 11676988
    Abstract: An image sensor is disclosed. The image sensor includes a first pixel of a first color arranged alternately with a pixel of a second color in a first direction of a pixel array, a second pixel of the first color arranged alternately with a pixel of a third color in the first direction in a row different from that of the first pixel of the first color, an isolation layer formed to surround the first pixel in the pixel array and structured to have a first depth, and an isolation layer formed to surround the second pixel in the pixel array and structured to have a second depth different from the first depth. One of the first and second pixels of the first color, and each of the pixels of the second color and the third color are configured to selectively receive different colors of light, respectively.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: June 13, 2023
    Assignee: SK hynix Inc.
    Inventor: Han Jun Kim
  • Patent number: 11658195
    Abstract: An image sensor is disclosed. The image sensor includes a pixel region and a shield region. The pixel region includes a first microlens array that includes microlenses arranged in a first direction and a second direction perpendicular to the first direction. The shield region surrounds the pixel region and includes a second microlens array formed in a shape that is obtained when the first microlens array is rotated by a predetermined angle with respect to the first direction.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: May 23, 2023
    Assignee: SK hynix Inc.
    Inventors: Sung Wook Cho, Han Jun Kim, Min Su Cho
  • Publication number: 20230097434
    Abstract: The embodiments provide a polyamide-imide-based film, which comprises a polyamide-imide-based polymer, wherein when the coefficients of thermal expansion in the MD direction and TD direction of the film are measured at an interval of 5° C. in a temperature range of 300° C. to 365° C., respectively, the temperature at which the coefficient of thermal expansion in the MD direction or the coefficient of thermal expansion in the TD direction changes from a positive value to a negative value is 330° C. to 345° C., a process for preparing the same, and a cover window and a display device comprising the same.
    Type: Application
    Filed: June 27, 2022
    Publication date: March 30, 2023
    Inventors: Han Jun KIM, Jin Woo LEE, Sang Hun CHOI, Jin Yong LEE, Heung Sik KIM
  • Publication number: 20230100324
    Abstract: The embodiments provide a polyamide-imide-based film that comprises a polyamide-imide-based polymer and has an RC value of 0.96 to 1.03 as represented by the following Equation 1, whereby it is uniform in quality and excellent in mechanical properties and optical properties, a process for preparing the same, and a cover window and a display device comprising the same. <Equation 1>RC=CTEMD/CTETD In Equation 1, CTEMD is an average value of the coefficients of thermal expansion (ppm/° C.) in the MD direction of the film, CTETD is an average value of the coefficients of thermal expansion (ppm/° C.) in the TD direction of the film, and the average value is an average of the coefficients of thermal expansion measured at six points in total, in which two arbitrary points are selected in each of region N, region C, and region S partitioned in the TD direction of the film.
    Type: Application
    Filed: June 27, 2022
    Publication date: March 30, 2023
    Inventors: Han Jun KIM, Jin Woo Lee, San Hun Choi, Jin Yong Lee, Heung Sik Kim
  • Publication number: 20220402254
    Abstract: The embodiments relate to a polyamide-based composite film that has excellent curl characteristics, mechanical properties, and optical properties, as well as, in particular, is effective in preventing reflection in the visible light region, remarkably reduces the rainbow phenomenon, and achieves a texture similar to that of glass, and a display device comprising the same. There are provided a polyamide-based composite film, which comprises a base film comprising a polyamide-based polymer; and a functional layer disposed on the base film, wherein the in-plane retardation (Re) measured with light having a wavelength of 550 nm is 100 nm to 220 nm, and a display device comprising the same.
    Type: Application
    Filed: April 27, 2022
    Publication date: December 22, 2022
    Inventors: Yun-Hee Seo, Sang Hun Choi, Jung Hee Ki, Jin Woo Lee, Dae Seong Oh, Han Jun Kim, Sun Hwan Kim, Heung Sik Kim
  • Publication number: 20220403104
    Abstract: The embodiments provide a polyamide-based film, which comprises a polyamide-based polymer and has a light resistance index of 0.660 GPa-1 or less as represented by the following Equation 1, whereby it has excellent mechanical properties, optical properties, and light resistance. [Equation 1] Light resistance index=?YI/Y. In Equation 1, Y is the modulus of the film, and ?YI is the rate of change in yellow index (YI) of the film before and after a light resistance test in which UV rays are irradiated to the film at 60° C., the UV irradiation is stopped, and water is sprayed at 50° C.
    Type: Application
    Filed: April 26, 2022
    Publication date: December 22, 2022
    Inventors: Dae Seong OH, Han Jun Kim, Sun Hwan Kim, Heung Sik Kim, Jin Woo LEE
  • Patent number: 11505129
    Abstract: A cargo bed assembly for a pickup truck includes: a pair of side walls opposing each other; a truck bed located between the pair of sidewalls, and having a first cavity; a tailgate pivotally connected to a rear end of the truck bed by a first pivot pin, and having a second cavity; a slide unit movably received in the first cavity; and a step unit movably received in the second cavity. In particular, the second cavity is configured to communicate with the first cavity, and the step unit is pivotally connected to the slide unit.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: November 22, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Un Tae Kim, Han Jun Kim
  • Publication number: 20220348728
    Abstract: A polyamide-based composite film with curl characteristics, mechanical characteristics, and optical characteristics, as well as a wide angle of view provided by securing at least a certain level of luminance at various angles, and a display device comprising the same. The polyamide-based composite film comprises a base film comprising a polyamide-based polymer and a functional layer disposed on the base film. When the polyamide-based composite film is placed on a surface light source such that the base film is in contact with the surface light source, light is irradiated from the surface light source, a luminance value (L0) measured in the normal direction of the surface light source is 100%, and a luminance value (L50) measured in the direction of 50° from the normal direction of the surface light source is 25% or more.
    Type: Application
    Filed: April 20, 2021
    Publication date: November 3, 2022
    Inventors: Sang Hun CHOI, Dae Seong OH, Han Jun KIM, Sun Hwan KIM, Jin Woo LEE, Heung Sik KIM, Jung Hee KI, Yun Hee SEO
  • Patent number: 11413019
    Abstract: Provided is an ultrasound imaging apparatus comprising: an image processing unit for connecting relevant blood flows and classifying the same into a plurality of blood flow trees on the basis of information on blood flow direction and blood flow velocity obtained from morphological information of a target object and three-dimensional blood flow data; a user input unit for receiving a user input which selects a blood flow tree, in which a target blood flow is included, from among the plurality of blood flow trees; and a display unit for displaying the selected blood flow tree on a three-dimensional rendering image on the basis of the user input.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: August 16, 2022
    Assignee: SAMSUNG MEDISON CO., LTD.
    Inventors: Han-jun Kim, Sung-yoon Kim, Jong-sik Kim