Patents by Inventor Jang-Hwan Hwang

Jang-Hwan Hwang 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: 20250148079
    Abstract: A method of detecting mobile security file leakage of the present disclosure includes receiving, by a detection server, an operating system type from a mobile device, connecting, by the detection server, to the mobile device depending on an operating system to load a media file system, checking an analysis setting time by the detection server connected to the mobile device, analyzing, by the detection server, the media file system to detect presence or absence of an abnormality, generating, by the detection server, an analysis result based on presence or absence of an abnormality, checking whether there is an error in the analysis result and extracting an original file and a thumbnail file if there is no error by the detection server, deleting, by the detection server, a file from which an abnormality is detected based on the analysis result, and generating and storing a result report on the analysis result by the detection server, wherein the operating system type is at least one of a first operating system
    Type: Application
    Filed: November 15, 2024
    Publication date: May 8, 2025
    Inventors: Hong Sun LEE, Jang Hoon KIM, Jae Hwan LEE, Sung Woo AN, Bong Seok YOU, Jeong Min HONG, Seon Ho HWANG, Jae Wook JEONG
  • Patent number: 12257892
    Abstract: Proposed is a transmission mount for a vehicle in which the structure of an upper insert and a lower insert integrated with a single bridge among components of the transmission mount is improved to reduce the static stiffness in the right-left direction (i.e., the Y direction) of the transmission mount. The strength of the transmission mount in the front-rear direction (i.e., the X direction) and the static stiffness in the top-bottom direction (i.e., the Z direction) is reinforced so that the pitching motion and the vertical bounce behavior of the transmission may be efficiently controlled. Accordingly, booming noise caused by the rolling motion of the transmission is minimized, thereby improving NVH performance and meeting driving performance.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: March 25, 2025
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Jang Ho Kim, Ki Woong Jeong, Se Hwan Jun, Dong Hyun Lee, Jun Haeng Heo, Jong Young Hwang
  • Patent number: 10725236
    Abstract: A light cylinder, a dispenser, and a method of manufacturing a light cylinder are disclosed. The light cylinder includes an outer layer and an inside layer, where the inside layer is formed by filling optical resin into the inside space of the outer layer, and the refractive index of the optical resin is determined in consideration of the refractive index of the outer layer.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: July 28, 2020
    Assignee: HATBIT ILLUCOM CO., LTD.
    Inventors: Heon Cheol Kim, Jang Hwan Hwang
  • Publication number: 20160178838
    Abstract: A light cylinder, a dispenser, and a method of manufacturing a light cylinder are disclosed. The light cylinder includes an outer layer and an inside layer, where the inside layer is formed by filling optical resin into the inside space of the outer layer, and the refractive index of the optical resin is determined in consideration of the refractive index of the outer layer.
    Type: Application
    Filed: March 2, 2015
    Publication date: June 23, 2016
    Inventors: Heon Cheol Kim, Jang Hwan Hwang
  • Publication number: 20110146889
    Abstract: A disclosed method for manufacturing a display device with optical/electronic structures according to the present invention comprises: a first step for forming the optical/electronic structures on the primary side of a release film onto which an adhesive is applied, a second step for attaching the primary side of the release film to a substrate or a film, and a third step for removing only the release film from the substrate or film while the optical/electronic structures are attached thereto. According to the invention, the optical/electronic structures are transferred and attached to the substrate or film of the display device after firstly being attached to the release film.
    Type: Application
    Filed: September 30, 2009
    Publication date: June 23, 2011
    Applicants: FINETEK, CO., LTD.
    Inventor: Jang Hwan Hwang
  • Patent number: 7568827
    Abstract: A light guide member for guiding light incident thereon from a light source, the light guide member including a plurality of the first grooves extending along a first direction on a first side of the light guide member, a plurality of second grooves extending along a second direction on the first side of the light guide member, the first direction may cross the second direction such that the first grooves and the second grooves may form a matrix pattern on the first side of the light guide member, wherein a polygonal shaped projection is formed between every two adjacent ones of the second grooves and a corresponding two adjacent ones of the first grooves.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: August 4, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Dong Ho Lee, Won Ki Cho, Jang Hwan Hwang
  • Patent number: 7397619
    Abstract: A prism sheet having a concave pentagonal structure is disclosed. The prism sheet comprises a base layer, and a prism array disposed on and supported by the base layer. The prism array is composed of a plurality of prisms aligned in parallel and one beside the other. The transversal cross-section of each prism has a shape of concave pentagon, which is symmetrical about a vertical line passing the apex. The interior angle ? of the apex is 30°???120°, the exterior angle ? formed by the upper slant side and the lower slant side is ?<180°, the interior angle ? of the lower vertex formed by the lower slant side and the base is 5°???85° and the length w of the base is 30 ?m?w?100 ?m. Preferably, the interior angle ? of the apex may be 40°???100°, the exterior angle ? formed by the upper slant side and the lower slant side may be 160°???179°, and the interior angle ? of the lower vertex formed by the lower slant side and the base may be 30°???60°. Preferably, the length w of the base may be 40 ?m?w?60 ?m.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: July 8, 2008
    Assignee: Doosan Corporation
    Inventors: Jang-Hwan Hwang, Chong-Pil Pae, Min-Cheol Kook
  • Publication number: 20080008434
    Abstract: A light guide member for guiding light incident thereon from a light source, the light guide member including a plurality of the first grooves extending along a first direction on a first side of the light guide member, a plurality of second grooves extending along a second direction on the first side of the light guide member, the first direction may cross the second direction such that the first grooves and the second grooves may form a matrix pattern on the first side of the light guide member, wherein a polygonal shaped projection is formed between every two adjacent ones of the second grooves and a corresponding two adjacent ones of the first grooves.
    Type: Application
    Filed: March 23, 2007
    Publication date: January 10, 2008
    Inventors: Dong Ho Lee, Won Ki Cho, Jang Hwan Hwang
  • Publication number: 20070115570
    Abstract: A prism sheet having a concave pentagonal structure is disclosed. The prism sheet comprises a base layer, and a prism array disposed on and supported by the base layer. The prism array is composed of a plurality of prisms aligned in parallel and one beside the other. The transversal cross-section of each prism has a shape of concave pentagon, which is symmetrical about a vertical line passing the apex. The interior angle a of the apex is 30°???120°, the exterior angle ? formed by the upper slant side and the lower slant side is ?<180°, the interior angle ? of the lower vertex formed by the lower slant side and the base is 5°???85° and the length w of the base is 30 ?m?w?100 ?m. Preferably, the interior angle ? of the apex may be 40°???100°, the exterior angle ? formed by the upper slant side and the lower slant side may be 160°???179°, and the interior angle ? of the lower vertex formed by the lower slant side and the base may be 30°???60°. Preferably, the length w of the base may be 40 ?m?w?60 ?m.
    Type: Application
    Filed: July 30, 2004
    Publication date: May 24, 2007
    Applicant: Doosan Corporation Electro-Materials BG
    Inventors: Jang-Hwan Hwang, Chong-Pil Pae, Min-Cheol Kook