Patents by Inventor Jang-Hyun Cho

Jang-Hyun Cho 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: 20200324706
    Abstract: A luggage box includes a main box installed to be accommodated in and be drawn from a luggage side trim. A hidden box is connected to the main box so that the hidden box is operated together with the main box. The hidden box is disposed in a row with the main box when the main box is accommodated in the luggage side trim, and is movable to a main box accommodation space to be externally exposed when the main box drawn from the luggage side trim rotates.
    Type: Application
    Filed: October 24, 2019
    Publication date: October 15, 2020
    Inventors: Min Ho Cho, Seung Hyeok Chang, Jang Hyun Cho, Dae Min Lee, Ji Sun Choi, Seok Heon Yoon, Dong Hee Hong, Youn Woo Park, Jung Whan Kim, Dong Hyun Kim
  • Publication number: 20200319506
    Abstract: A polarizing plate and an optical display apparatus including the same are provided. A polarizing plate includes: a polarizer; and a pattern layer on a surface of the polarizer and including a first resin layer and a second resin layer facing the first resin layer, the first resin layer including a patterned portion located at at least a portion thereof facing the second resin layer, the patterned portion includes at least two embossed optical patterns and a flat section formed between a pair of adjacent embossed optical patterns, each of the embossed optical patterns includes an upper surface defining a wave pattern, and the wave pattern has a value of about 20% to 60%, as calculated according to Formula 1 herein, and a pitch of greater than about 100 ?m and less than about 400 ?m.
    Type: Application
    Filed: April 3, 2020
    Publication date: October 8, 2020
    Inventors: Kyoung Min CHO, Young OH, Dong Ho WEE, Jang Hyun CHO
  • Patent number: 10775739
    Abstract: Disclosed is a coherence-adjustable digital holography system. More particularly, the coherence-adjustable digital holography system includes a light source part for generating low-interference light; a dispersion part for dispersing the generated light, an adjustment part for adjusting coherence by adjusting a spectrum bandwidth of the light which has passed through the dispersion part; and a detection part for detecting a holographic image of a subject from the adjusted light. In accordance with such a configuration, an interference fringe may be easily obtained through coherence adjustment, whereby the accuracy of a detected holographic image may be improved.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: September 15, 2020
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: No Cheol Park, Jang Hyun Cho, Sung Bin Jeon, Ji Nan Jin
  • Patent number: 10747045
    Abstract: An optical film for improving contrast ratio, a polarizing plate including the same, and a liquid crystal display including the polarizing plate are provided. An optical film for improving contrast ratio includes a protective layer and a contrast ratio improving layer on the protective layer, and the contrast ratio improving layer includes a first resin layer and a second resin layer facing the first resin layer, and the second resin layer includes a patterned portion having optical patterns and a flat section between the optical patterns, contains a light absorber, and satisfies Equation 1 as defined herein.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: August 18, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young Oh, Jeong Ho Lee, Yong Un Jung, Jang Hyun Cho
  • Patent number: 10698145
    Abstract: A polarizing plate includes: a polarizing film; and an optical film on a surface of the polarizing film, the optical film including a first resin layer and a second resin layer sequentially stacked on the polarizing film, wherein the second resin layer has a higher index of refraction than the first resin layer, a plurality of pattern groups is at an interface between the first resin layer and the second resin layer, each of the pattern groups including at least two embossed optical patterns protruding from the second resin layer and a flat section between adjacent embossed optical patterns, each of the first surfaces being a bottom portion of each of the embossed optical patterns, and, in each pattern group, shortest distances between the first surfaces of the embossed optical patterns and the flat sections immediately adjacent to the embossed optical patterns are sequentially increased, or sequentially decreased.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: June 30, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Dong Ho Wee, Jeong Ho Lee, Kyoung Min Cho, Jang Hyun Cho, Young Oh
  • Patent number: 10673156
    Abstract: A connecting device is provided that includes a movable part contacting an external contact terminal, and an elastic part connected to the movable part and configured to provide an elastic force enabling movement of the movable part. The connecting device also includes a support connected to the elastic part, and at least one protecting wall connected to the support and configured to protect the movable part from external forces. The connecting device further includes an extension extending from the at least one protecting wall in a direction along which the movable part moves and configured to bring the movable part close to the external contact terminal, and a base part provided within the extension and configured to reinforce the support.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: June 2, 2020
    Assignees: Samsung Electronics Co., Ltd, Hyupjinconnector Co., Ltd
    Inventors: Jang-Won Hur, Jae-Woon Lee, Jung-Hyun Cho, Seon-Tae Kim, Jin-Woo Park, Chang-Su Park, Yoon-Jae Jung, Kyung-Bin Han
  • Publication number: 20200159068
    Abstract: Provided are a polarizing plate and an optical display device including same, the polarizing plate comprising a polarizing film and a contrast ratio enhancement layer formed on a light-emitting surface of the polarizing film, wherein the contrast ratio enhancement layer comprises: a first resin layer including a pattern unit having one or more engraved patterns and a flat portion formed between the engraved patterns; and a second resin layer directly formed on the pattern unit, wherein the engraved patterns have a base angle of approximately 75° to approximately 90°, the pattern unit satisfies formula 1, the first resin layer has a refractive index larger than that of the second resin layer, and the first resin layer includes a dye of which the maximum absorption wavelength is approximately 550 nm to approximately 620 nm.
    Type: Application
    Filed: May 14, 2018
    Publication date: May 21, 2020
    Inventors: Jeong Ho LEE, Dae Gyu LEE, Yong Un JUNG, Young OH, Dong Ho WEE, Jang Hyun CHO, Young Hyun JU
  • Patent number: 10654419
    Abstract: A luggage compartment screen apparatus of a vehicle may include a moving housing movable along guide rails; a push mechanism to be drawn out or drawn in from the moving housing toward the luggage compartment and be rotatable and formed to have a step in a rotation direction thereof; and a locking mechanism rotatably disposed on the moving housing to be configured to be selectively locked to the guide rail, formed to have a step in a drawn-out and drawn-in direction of the push mechanism, and having a stepped portion in contact with a stepped portion of the push mechanism to be rotated to be locked to the guide rail at the time of a drawn-in operation or a rotation operation of the push mechanism and be rotated to be separated from the guide rail at the time of a drawn-out operation of the push mechanism.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: May 19, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corp
    Inventors: Jang Hyun Cho, Won Jong Lee, Hee Cheol Kim, Dong Hwan Kim, Dong Ha Lee
  • Publication number: 20200130587
    Abstract: A storage device for vehicles enables a luggage box to be separated from a luggage compartment in a vehicle and to also be used outside the vehicle, thereby improving convenience in use. The storage device enables the internal space in the luggage compartment to be employed as a storage space even when the luggage box is separated from the luggage compartment, thereby improving availability of space.
    Type: Application
    Filed: March 13, 2019
    Publication date: April 30, 2020
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, DAEJOO PRECISION INDUSTRIAL
    Inventors: Min Ho Cho, Jang Hyun Cho, Dae Ig Jung, Jin Ho Hwang, Seung Hyeok Chang, Ki Young An
  • Publication number: 20200071614
    Abstract: Provided are a silicon nitride layer etching composition, and more specifically, a silicon nitride layer etching composition, capable of etching the silicon nitride layer at a high selectivity ratio relative to a silicon oxide layer by comprising a polysilicon compound in the etching composition, an etching method of a silicon nitride layer using the same, and a method of manufacturing a semiconductor device.
    Type: Application
    Filed: August 30, 2019
    Publication date: March 5, 2020
    Inventors: Dong Hyun KIM, Hyeon Woo PARK, Jang Woo CHO, Tae Ho KIM, Myung Ho LEE, Myung Geun SONG
  • Publication number: 20200057333
    Abstract: Provided are a contrast ratio improving optical film, a polarizing plate comprising the same, and a liquid crystal display device comprising the same, wherein the contrast ratio improving optical film comprises a contrast ratio improving layer. The contrast ratio improving layer comprises a first resin layer and a second resin layer which faces the first resin layer, wherein the second resin layer comprises a pattern part having optical patterns and a flat part between the optical patterns. The optical patterns have at least one inclined surface with respect to the flat part, and the flat part or the inclined surface has a light absorption layer formed thereon. The contrast ratio improving optical film has a lowest reflectance of 0.5% or less.
    Type: Application
    Filed: November 27, 2017
    Publication date: February 20, 2020
    Inventors: Young Hyun JU, Dae Seob SHIM, Young OH, Dong Ho WEE, Jeong Ho LEE, Yong Un JUNG, Jang Hyun CHO
  • Publication number: 20190390110
    Abstract: Provided is a silicon nitride layer etching composition, and more specifically, a silicon nitride layer etching composition including two different silicon-based compounds in an etching composition to be capable of selectively etching a silicon nitride layer relative to a silicon oxide layer with a remarkable etch selectivity ratio and providing remarkable effects of suppressing generation of precipitates and reducing the abnormal growth of other layers existing in the vicinity, including the silicon oxide layer when the silicon nitride layer etching composition is used for an etching process and a semiconductor manufacturing process.
    Type: Application
    Filed: May 17, 2019
    Publication date: December 26, 2019
    Inventors: Dong Hyun KIM, Hyeon Woo PARK, Du Won LEE, Jang Woo CHO, Myung Ho LEE, Myung Geun SONG
  • Publication number: 20190382659
    Abstract: Provided are a polysiloxane-based compound, a selective etching composition with respect to a silicon nitride layer including the polysiloxane-based compound, and a method of manufacturing a semiconductor device including the etching composition. The silicon nitride layer etching composition including the polysiloxane-based compound may selectively etch the silicon nitride layer relative to a silicon oxide layer, and have a significantly excellent etch selectivity ratio, and a small change in etch rate and a small change in etch selectivity ratio with respect to the silicon nitride layer even when time for using the composition increases or the composition is repeatedly used.
    Type: Application
    Filed: June 7, 2019
    Publication date: December 19, 2019
    Inventors: Dong Hyun KIM, Hyeon Woo PARK, Du Won LEE, Jang Woo CHO, Myung Ho LEE
  • Publication number: 20190315280
    Abstract: A luggage compartment screen apparatus of a vehicle may include a moving housing movable along guide rails; a push mechanism to be drawn out or drawn in from the moving housing toward the luggage compartment and be rotatable and formed to have a step in a rotation direction thereof; and a locking mechanism rotatably disposed on the moving housing to be configured to be selectively locked to the guide rail, formed to have a step in a drawn-out and drawn-in direction of the push mechanism, and having a stepped portion in contact with a stepped portion of the push mechanism to be rotated to be locked to the guide rail at the time of a drawn-in operation or a rotation operation of the push mechanism and be rotated to be separated from the guide rail at the time of a drawn-out operation of the push mechanism.
    Type: Application
    Filed: August 20, 2018
    Publication date: October 17, 2019
    Applicants: Hyundai Motor Company, Kia Motors Corp
    Inventors: Jang Hyun CHO, Won Jong Lee, Hee Cheol Kim, Dong Hwan Kim, Dong Ha Lee
  • Patent number: 10355429
    Abstract: A connection terminal device and an electronic device having the same are provided. The connection terminal device includes a connection terminal device body, and a connection terminal connected to the connection terminal device body. The connection terminal device also has a front unit disposed on a front surface of the connection terminal device body, a rear unit disposed on a rear surface of the connection terminal device body, and a support disposed on the rear surface of the connection terminal device body. When force is applied to the connection terminal, supporting force is transferred to the rear unit of the connection terminal device body.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: July 16, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., HYUPJINCONNECTOR CO., LTD.
    Inventors: Myeong-Hwa Kim, Yang-Jean Park, Yeon-Kwan Moon, Jin-Woo Park, Myung-Suk Bae, Jung-Hyun Cho, Jin-Hyuk Choi, Jae-Ryong Han, Jang-Won Hur
  • Publication number: 20190136093
    Abstract: An exemplary embodiment of the present invention provides a multilayer marking film including: an adhesive layer; a colored base layer having a first color; and a colored coating layer having a second color, in which the first color and the second color are different from each other, the colored coating layer, the colored base layer, and the adhesive layer are sequentially provided, the colored base layer includes a cured material of a base composition including: a urethane (meth)acrylate oligomer; a (meth)acrylate monomer including one or more selected from the group consisting of a cyclo-aliphatic (meth)acrylate monomer, an epoxy-based (meth)acrylate monomer, an aliphatic (meth)acrylate monomer, and a polyol-based (meth)acrylate monomer; and a pigment, and the colored coating layer is etched by laser irradiation.
    Type: Application
    Filed: April 12, 2017
    Publication date: May 9, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Myung Hyun Jo, Joo Hee Hong, Jang Soon Kim, Hong Kwan Cho
  • Publication number: 20190072698
    Abstract: A polarizing plate includes: a polarizing film; and an optical film on a surface of the polarizing film, the optical film including a first resin layer and a second resin layer sequentially stacked on the polarizing film, wherein the second resin layer has a higher index of refraction than the first resin layer, a plurality of pattern groups is at an interface between the first resin layer and the second resin layer, each of the pattern groups including at least two embossed optical patterns protruding from the second resin layer and a flat section between adjacent embossed optical patterns, each of the first surfaces being a bottom portion of each of the embossed optical patterns, and, in each pattern group, shortest distances between the first surfaces of the embossed optical patterns and the flat sections immediately adjacent to the embossed optical patterns are sequentially increased, or sequentially decreased.
    Type: Application
    Filed: September 7, 2018
    Publication date: March 7, 2019
    Inventors: Dong Ho Wee, Jeong Ho Lee, Kyoung Min Cho, Jang Hyun Cho, Young Oh
  • Patent number: D836589
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: December 25, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hyun Jin Song, Ji Woon Min, Young Nam Lee, Jin Ho Choi, Il Yong Kim, Jang Hyun Cho
  • Patent number: D838682
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: January 22, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hyun Jin Song, Ji Woon Min, Young Nam Lee, Jin Ho Choi, Il Yong Kim, Jang Hyun Cho
  • Patent number: D887952
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: June 23, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jang Hyun Cho, Hee Cheol Kim, Chang Mo Seong