Patents by Inventor Eun Jeong Cho

Eun Jeong 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).

  • Patent number: 10703873
    Abstract: An intermediate material of a thermoplastic prepreg for a fuel cell separation plate comprises a hydrophobic thermoplastic resin film and a fiber base. The hydrophobic thermoplastic resin film has a degree of crystallization of 1 to 20%, a thickness of 3 to 50 ?m, and (iii) a content of an electroconductive material of 1 to 20 wt. %. The film is laminated on at least one surface of the fiber base. The thermoplastic prepreg for a fuel cell separation plate is manufactured by pressurizing the thermoplastic prepreg intermediate material at a temperature higher than the melting point of the hydrophobic thermoplastic resin film. A fuel cell separation membrane manufactured using the thermoplastic prepreg intermediate material and thermoplastic prepreg is thin and light-weight, and have a good durability.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: July 7, 2020
    Assignee: KOLON INDUSTRIES, INC.
    Inventors: Jee Sung Yi, Hyun Chul Lee, Joon Young Yoon, Eun Jeong Cho, Chung Seock Kang
  • Patent number: 10672911
    Abstract: A thin film transistor array panel device comprises: a base substrate; a barrier layer disposed over the base substrate and comprising a plurality of transparent material layers; and an array of thin film transistors disposed over the barrier layer. A difference between a refractive index of the barrier layer and a refractive index of the base substrate may be within about 6%. The transparent material layers may be arranged such that the transparent material layers having compressive residual stress and the transparent material layers having tensile residual stress are alternately stacked. Each of the transparent material layers may comprise silicon oxynitride (SiON).
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: June 2, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Ho Jung, Chaun Gi Choi, Hye Young Park, Eun Young Lee, Joo Hee Jeon, Eun Jeong Cho, Bo Geon Jeon, Yung Bin Chung
  • Patent number: 10596545
    Abstract: A filament web type precursor fabric for an activated carbon fiber fabric is produced by (i) spreading precursor filaments for preparing activated carbon fiber in a web state; and (ii) punching the precursor filaments for preparing activated carbon fiber spread in a web state to entangle the precursor filaments for preparing activated carbon fiber with each other. The filament web type precursor fabric has a structure in which the precursor filaments for preparing activated carbon fiber are spread in a web form and entangled with each other, and has a weight per unit area ranging from 50 to 500 g/m2. An activated carbon fiber fabric manufactured by activating the filament web type precursor fabric contains yarns with improved and uniform durability and crystallinity, and an shows improved performance of forming microfine pores having a diameter of 1 to 2 nm.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: March 24, 2020
    Assignee: KOLON INDUSTRIES, INC.
    Inventors: Tae Sang Lee, Eun Jeong Cho, Joon Young Yoon
  • Publication number: 20190326442
    Abstract: A thin film transistor array panel device comprises: a base substrate; a barrier layer disposed over the base substrate and comprising a plurality of transparent material layers; and an array of thin film transistors disposed over the barrier layer. A difference between a refractive index of the barrier layer and a refractive index of the base substrate may be within about 6%. The transparent material layers may be arranged such that the transparent material layers having compressive residual stress and the transparent material layers having tensile residual stress are alternately stacked. Each of the transparent material layers may comprise silicon oxynitride (SiON).
    Type: Application
    Filed: June 25, 2019
    Publication date: October 24, 2019
    Inventors: Seung Ho JUNG, Chaun Gi Choi, Hye Young Park, Eun Young Lee, Joo Hee Jeon, Eun Jeong Cho, Bo Geon Jeon, Yung Bin Chung
  • Patent number: 10361312
    Abstract: A thin film transistor array panel device comprises: a base substrate; a barrier layer disposed over the base substrate and comprising a plurality of transparent material layers; and an array of thin film transistors disposed over the barrier layer. A difference between a refractive index of the barrier layer and a refractive index of the base substrate may be within about 6%. The transparent material layers may be arranged such that the transparent material layers having compressive residual stress and the transparent material layers having tensile residual stress are alternately stacked. Each of the transparent material layers may comprise silicon oxynitride (SiON).
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: July 23, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Ho Jung, Chaun Gi Choi, Hye Young Park, Eun Young Lee, Joo Hee Jeon, Eun Jeong Cho, Bo Geon Jeon, Yung Bin Chung
  • Patent number: 10189217
    Abstract: A method for preparing a high quality thermoplastic prepreg, includes: laminating a thermoplastic resin film having a crystallization degree in a range of 1 to 20% on at least one surface of a matrix fiber; and heating the laminate to a higher temperature than a melting point of the film, then, pressing the same. The method uniformly impregnates a matrix fiber with a thermoplastic resin, has a short curing cycle in the formation, and involves no random modification in alignment of fibers in the matrix fiber due to a low crystallization degree of the impregnated thermoplastic resin, thereby increasing rigidity of a formed product and enabling reduction of thickness. Thus produced prepreg has a low weight variation per unit area.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: January 29, 2019
    Assignee: KOLON INDUSTRIES, INC.
    Inventors: Jee Sung Yi, Eun Jeong Cho, Joon Young Yoon, Hyun Chul Lee, Chung Seock Kang
  • Publication number: 20180290426
    Abstract: A 0° unidirectional yarn prepreg and a preparation method are disclosed. The 0° unidirectional yarn prepreg has high-strength filaments which are arranged in parallel to each other in an axial direction X of a winding roller around which unidirectional yarn prepregs are wound and a resin is impregnated. The method includes steps of: (i) weaving a fabric using a thermoplastic film tape as a warp and using high-strength filaments as wefts; and (ii) performing thermal compression on the woven fabric at a temperature in which the warp is melted. Also, a multiaxial prepreg composite material is prepared by simultaneously and continuously supplying the 0° unidirectional yarn prepreg A prepared as described above method and a 90° unidirectional yarn prepreg B prepared by a conventional warping method to a thermal compression roller, and performing thermal compression thereon.
    Type: Application
    Filed: May 13, 2016
    Publication date: October 11, 2018
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Joon Young YOON, Hyun Chul LEE, Eun Jeong CHO
  • Patent number: 10020352
    Abstract: A substrate structure may be used in a display device. The substrate structure may include a base substrate, a transistor, and a silicon oxynitride layer. The transistor may include a semiconductor member and a gate electrode and may overlap the base substrate. The silicon oxynitride layer may directly contact at least one of the base substrate, the semiconductor member, and the gate electrode and may include (and/or contain) a hydrogen atom set. A hydrogen concentration in the silicon oxynitride layer may be greater than or equal to 1.52 atomic percent.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: July 10, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yung-Bin Chung, Bo-Geon Jeon, Eun-Jeong Cho, Hye-Hyang Park, Sung-Hoon Yang, Woo-Seok Jeon, Joo-Hee Jeon, Chaun-Gi Choi
  • Patent number: 10010851
    Abstract: The present invention provides an all-in-one type continuous reactor for preparing a positive electrode active material for a lithium secondary battery. The continuous reactor includes a flange unit provided at one side of a cylinder; at least one reactant inlet port provided on the flange unit; a reaction product outlet port provided at the other side of the cylinder; a plurality of extra ports provided between the reactant inlet port and the reaction product outlet port; a temperature control unit disposed between an inner circumferential surface and outer circumferential surface; a pulverizing unit provided in the reactant inlet port; a flow rate sensor provided in at least one of the reactant inlet port; and a flow rate control unit configured to control the flow rate of the reactant.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: July 3, 2018
    Assignee: LAMINAR CO., LTD.
    Inventors: Jong Pal Hong, Hee Wan Lee, Kyung Woo Lee, Eun Jeong Cho
  • Publication number: 20180072025
    Abstract: A laminate for forming a composite material is provided. The laminate has a structure in that unidirectional yarn sheets S in which yarns are arranged in parallel to each other in one direction without bending and thermoplastic resin films F are alternately stacked so that the film F is located between the unidirectional yarn sheets S. The yarn sheets S and the films F having a degree of crystallinity XC of 30% or less are integrally coupled by stitching yarn Y, and adjacent unidirectional yarn sheets S are obliquely stacked at an angle of ±1° to ±90° to a direction in which yarns included in the respective unidirectional yarn sheets S are arranged. The use of unidirectional yarn sheets S, instead of fabrics or multi-axial fabrics, achieves excellent smoothness. Composite material manufactured using the laminate has uniform physical properties such as strength.
    Type: Application
    Filed: April 7, 2016
    Publication date: March 15, 2018
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Hyun Chul LEE, Eun Jeong CHO, Joon Young YOON
  • Patent number: 9917108
    Abstract: A thin film transistor array panel according to an exemplary embodiment of the present invention includes: an insulating substrate; a polycrystal semiconductor layer formed on the insulating substrate; a buffer layer formed below the polycrystal semiconductor layer and containing fluorine; a gate electrode overlapping the polycrystal semiconductor layer; a source electrode and a drain electrode overlapping the polycrystal semiconductor layer and separated from each other; and a pixel electrode electrically connected to the drain electrode.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: March 13, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung Yun Jo, Ki Seong Seo, Eun Jeong Cho
  • Patent number: 9859305
    Abstract: Provided are liquid crystal display and the method for manufacturing the same. According to an aspect of the present invention, there is provided a liquid crystal display device, including a first substrate; a gate electrode disposed on the first substrate; a semiconductor pattern layer disposed on the gate electrode; and a source electrode and a drain electrode disposed on the semiconductor pattern layer and facing each other, wherein a diffusion prevention pattern is disposed on the semiconductor pattern layer to prevent diffusion into the semiconductor pattern layer or to maintain uniform thickness of the semiconductor pattern layer.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: January 2, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yung Bin Chung, Bo Geon Jeon, Eun Jeong Cho, Tae Young Ahn, Woo Seok Jeon, Sung Hoon Yang
  • Publication number: 20170298200
    Abstract: An intermediate material of a thermoplastic prepreg for a fuel cell separation plate comprises a hydrophobic thermoplastic resin film and a fiber base. The hydrophobic thermoplastic resin film has a degree of crystallization of 1 to 20%, a thickness of 3 to 50 ?m, and (iii) a content of an electroconductive material of 1 to 20 wt. %. The film is laminated on at least one surface of the fiber base. The thermoplastic prepreg for a fuel cell separation plate is manufactured by pressurizing the thermoplastic prepreg intermediate material at a temperature higher than the melting point of the hydrophobic thermoplastic resin film. A fuel cell separation membrane manufactured using the thermoplastic prepreg intermediate material and thermoplastic prepreg is thin and light-weight, and have a good durability.
    Type: Application
    Filed: September 23, 2015
    Publication date: October 19, 2017
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Jee Sung YI, Hyun Chul LEE, Joon Young YOON, Eun Jeong CHO, Chung Seock KANG
  • Publication number: 20170207343
    Abstract: A thin film transistor array panel device comprises: a base substrate; a barrier layer disposed over the base substrate and comprising a plurality of transparent material layers; and an array of thin film transistors disposed over the barrier layer. A difference between a refractive index of the barrier layer and a refractive index of the base substrate may be within about 6%. The transparent material layers may be arranged such that the transparent material layers having compressive residual stress and the transparent material layers having tensile residual stress are alternately stacked. Each of the transparent material layers may comprise silicon oxynitride (SiON).
    Type: Application
    Filed: April 5, 2017
    Publication date: July 20, 2017
    Inventors: Seung Ho JUNG, Chaun Gi CHOI, Hye Young PARK, Eun Young LEE, Joo Hee JEON, Eun Jeong CHO, Bo Geon JEON, Yung Bin CHUNG
  • Publication number: 20170170209
    Abstract: A thin film transistor array panel according to an exemplary embodiment of the present invention includes: an insulating substrate; a polycrystal semiconductor layer formed on the insulating substrate; a buffer layer formed below the polycrystal semiconductor layer and containing fluorine; a gate electrode overlapping the polycrystal semiconductor layer; a source electrode and a drain electrode overlapping the polycrystal semiconductor layer and separated from each other; and a pixel electrode electrically connected to the drain electrode.
    Type: Application
    Filed: February 28, 2017
    Publication date: June 15, 2017
    Inventors: Jung Yun JO, Ki Seong SEO, Eun Jeong CHO
  • Publication number: 20170136443
    Abstract: A filament web type precursor fabric for an activated carbon fiber fabric is produced by (i) spreading precursor filaments for preparing activated carbon fiber in a web state; and (ii) punching the precursor filaments for preparing activated carbon fiber spread in a web state to entangle the precursor filaments for preparing activated carbon fiber with each other. The filament web type precursor fabric has a structure in which the precursor filaments for preparing activated carbon fiber are spread in a web form and entangled with each other, and has a weight per unit area ranging from 50 to 500 g/m2. An activated carbon fiber fabric manufactured by activating the filament web type precursor fabric contains yarns with improved and uniform durability and crystallinity, and an shows improved performance of forming microfine pores having a diameter of 1 to 2 nm.
    Type: Application
    Filed: June 11, 2015
    Publication date: May 18, 2017
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Tae Sang LEE, Eun Jeong CHO, Joon Young YOON
  • Patent number: 9647237
    Abstract: A thin film transistor array panel device comprises: a base substrate; a barrier layer disposed over the base substrate and comprising a plurality of transparent material layers; and an array of thin film transistors disposed over the barrier layer. A difference between a refractive index of the barrier layer and a refractive index of the base substrate may be within about 6%. The transparent material layers may be arranged such that the transparent material layers having compressive residual stress and the transparent material layers having tensile residual stress are alternately stacked. Each of the transparent material layers may comprise silicon oxynitride (SiON).
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: May 9, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung Ho Jung, Chaun Gi Choi, Hye Young Park, Eun Young Lee, Joo Hee Jeon, Eun Jeong Cho, Bo Geon Jeon, Yung Bin Chung
  • Publication number: 20170110481
    Abstract: Provided are liquid crystal display and the method for manufacturing the same. According to an aspect of the present invention, there is provided a liquid crystal display device, including a first substrate; a gate electrode disposed on the first substrate; a semiconductor pattern layer disposed on the gate electrode; and a source electrode and a drain electrode disposed on the semiconductor pattern layer and facing each other, wherein a diffusion prevention pattern is disposed on the semiconductor pattern layer to prevent diffusion into the semiconductor pattern layer or to maintain uniform thickness of the semiconductor pattern layer.
    Type: Application
    Filed: April 15, 2016
    Publication date: April 20, 2017
    Inventors: Yung Bin CHUNG, Bo Geon JEON, Eun Jeong CHO, Tae Young AHN, Woo Seok JEON, Sung Hoon YANG
  • Publication number: 20170104048
    Abstract: A substrate structure may be used in a display device. The substrate structure may include a base substrate, a transistor, and a silicon oxynitride layer. The transistor may include a semiconductor member and a gate electrode and may overlap the base substrate. The silicon oxynitride layer may directly contact at least one of the base substrate, the semiconductor member, and the gate electrode and may include (and/or contain) a hydrogen atom set. A hydrogen concentration in the silicon oxynitride layer may be greater than or equal to 1.52 atomic percent.
    Type: Application
    Filed: July 14, 2016
    Publication date: April 13, 2017
    Inventors: Yung-Bin CHUNG, Bo-Geon JEON, Eun-Jeong CHO, Hye-Hyang PARK, Sung-Hoon YANG, Woo-Seok JEON, Joo-Hee JEON, Chaun-Gi CHOI
  • Patent number: 9614092
    Abstract: A thin film transistor array panel according to an exemplary embodiment of the present invention includes: an insulating substrate; a polycrystal semiconductor layer formed on the insulating substrate; a buffer layer formed below the polycrystal semiconductor layer and containing fluorine; a gate electrode overlapping the polycrystal semiconductor layer; a source electrode and a drain electrode overlapping the polycrystal semiconductor layer and separated from each other; and a pixel electrode electrically connected to the drain electrode.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: April 4, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung Yun Jo, Ki Seong Seo, Eun Jeong Cho