Patents by Inventor Jung-Kyu Park

Jung-Kyu Park 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: 11027939
    Abstract: A sheet folding device includes a folding path, a folding roller including at least two rollers that engage with each other to form a folding nip and rotate, a folding blade to be movable to an insertion location at which at least one sheet of paper on the folding path is pushed into the folding nip, and to a retreat location escaping from the folding path, a guide member to move along with the folding blade, located at at least one side of the folding blade, and to push the paper towards the folding roller when the folding blade is moved to the insertion location and an elastic member to apply elasticity to the guide member towards the folding roller.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: June 8, 2021
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Jae Hyun Shin, Jung Kyu Park, Eiji Fukasawa, Soo Bok Lee, DongSun Jung
  • Patent number: 10974921
    Abstract: A sheet folding apparatus including a folding roller, a positioning member, a push member, and a shift member. The folding roller including a pair of rollers to rotatably engage with each other to form a folding nip. The positioning member to support a first end of a printing medium which is fed along a folding path and to arrange the printing medium in an initial folding location. The push member to move to an insertion location to push the printing medium on the folding path into the folding nip, and to move to a retreat location. The shift member, located at an exit of the folding nip, to selectively guide the printing medium to a guide path to return the printing medium having passed through the folding nip to the folding path, the guide path being provided around at least one of the pair of rollers.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: April 13, 2021
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Eiji Fukasawa, Su Yeon Kim, Jae Hyun Shin, Jung Kyu Park
  • Patent number: 10916719
    Abstract: Disclosed is a flexible display that is slim for flexibility, is controlled in stiffness, and has improved reliability owing to a structure of a non-folding portion thereof.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: February 9, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Jung-Kyu Park, Tae-Woo Kim
  • Publication number: 20200321551
    Abstract: A flexible display device and an electronic device including the same are disclosed. The flexible display device includes a magnetic body group, which is adhered to a lower plate provided under a display panel by the force of magnetic attraction. Therefore, the flexible display device has improved reliability in spite of frequent folding and unfolding operations and is capable of facilitating a rework process.
    Type: Application
    Filed: June 18, 2020
    Publication date: October 8, 2020
    Inventors: Jun-Hyung KIM, Tae-Woo KIM, Jung-Kyu PARK
  • Patent number: 10727435
    Abstract: A flexible display device and an electronic device including the same are disclosed. The flexible display device includes a magnetic body group, which is adhered to a lower plate provided under a display panel by the force of magnetic attraction. Therefore, the flexible display device has improved reliability in spite of frequent folding and unfolding operations and is capable of facilitating a rework process.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: July 28, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jun-Hyung Kim, Tae-Woo Kim, Jung-Kyu Park
  • Patent number: 10688780
    Abstract: An image processing method includes a first step of matching the image to the target surface, a second step of dividing the target surface into a plurality of preliminary divided regions, a third step of acquiring a first preliminary divided region among the plurality of preliminary divided regions, a fourth step of dividing the target surface into a plurality of final divided regions, on the basis of a preliminary divided image included in the first preliminary divided region of the image matched to the target surface, and a fifth step of setting a print starting position for respective final divided images included in the plurality of final divided regions by using a boundary line that defines the plurality of final divided regions.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: June 23, 2020
    Assignee: ROBOPRINT CO., LTD.
    Inventor: Jung Kyu Park
  • Publication number: 20200155010
    Abstract: A pulse sensing module used in a blood pressure measuring device attached to the skin to allow at least one of systolic pressure Psystolic, diastolic pressure Pdiastolic, and blood pressure variation to be measured according to an embodiment of the present disclosure includes a piezoelectric layer that includes a piezoelectric material for generating a piezoelectric effect due to a pulse and a protective layer that is applied to the piezoelectric layer to protect the piezoelectric layer, allows a poling process of applying a high voltage to the first electrode line and the second electrode line formed on the piezoelectric layer to improve the polarity of the piezoelectric material, and has an opening for allowing a portion of the first electrode line and a portion of the second electrode line to be exposed.
    Type: Application
    Filed: November 28, 2018
    Publication date: May 21, 2020
    Applicants: ROBOPRINT CO., LTD, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jung Kyu PARK, Min Su KIM, Keon Jae LEE, Dae Yong PARK
  • Publication number: 20200148499
    Abstract: A sheet folding device includes a folding path, a folding roller including at least two rollers that engage with each other to form a folding nip and rotate, a folding blade to be movable to an insertion location at which at least one sheet of paper on the folding path is pushed into the folding nip, and to a retreat location escaping from the folding path, a guide member to move along with the folding blade, located at at least one side of the folding blade, and to push the paper towards the folding roller when the folding blade is moved to the insertion location and an elastic member to apply elasticity to the guide member towards the folding roller.
    Type: Application
    Filed: March 12, 2018
    Publication date: May 14, 2020
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Jae Hyun SHIN, Jung Kyu PARK, Eiji FUKASAWA, Soo Bok LEE, DongSun JUNG
  • Publication number: 20200119293
    Abstract: Disclosed is a flexible display that is slim for flexibility, is controlled in stiffness, and has improved reliability owing to a structure of a non-folding portion thereof.
    Type: Application
    Filed: December 11, 2019
    Publication date: April 16, 2020
    Inventors: Jung-Kyu PARK, Tae-Woo KIM
  • Publication number: 20200087100
    Abstract: A sheet folding apparatus including a folding roller, a positioning member, a push member, and a shift member. The folding roller including a pair of rollers to rotatably engage with each other to form a folding nip. The positioning member to support a first end of a printing medium which is fed along a folding path and to arrange the printing medium in an initial folding location. The push member to move to an insertion location to push the printing medium on the folding path into the folding nip, and to move to a retreat location. The shift member, located at an exit of the folding nip, to selectively guide the printing medium to a guide path to return the printing medium having passed through the folding nip to the folding path, the guide path being provided around at least one of the pair of rollers.
    Type: Application
    Filed: November 25, 2019
    Publication date: March 19, 2020
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Eiji FUKASAWA, Su Yeon KIM, Jae Hyun SHIN, Jung Kyu PARK
  • Publication number: 20200052239
    Abstract: Disclosed are a flexible display and an electronic device including the same, in the flexible display, a back plate has an improved structure so as to stably support a display panel even during repeated folding and unfolding operations, and also the flexible display can prevents sagging or deformation of specific constituent elements therein.
    Type: Application
    Filed: October 21, 2019
    Publication date: February 13, 2020
    Inventors: Jun-Hyung KIM, Tae-Woo KIM, Han-Ul LEE, Jung-Kyu PARK
  • Patent number: 10541373
    Abstract: Disclosed is a flexible display that is slim for flexibility, is controlled in stiffness, and has improved reliability owing to a structure of a non-folding portion thereof.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: January 21, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Jung-Kyu Park, Tae-Woo Kim
  • Patent number: 10490771
    Abstract: Disclosed are a flexible display and an electronic device including the same, in the flexible display, a back plate has an improved structure so as to stably support a display panel even during repeated folding and unfolding operations, and also the flexible display can prevents sagging or deformation of specific constituent elements therein.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: November 26, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Jun-Hyung Kim, Tae-Woo Kim, Han-Ul Lee, Jung-Kyu Park
  • Publication number: 20190207141
    Abstract: Disclosed are a flexible display and an electronic device including the same, in the flexible display, a back plate has an improved structure so as to stably support a display panel even during repeated folding and unfolding operations, and also the flexible display can prevents sagging or deformation of specific constituent elements therein.
    Type: Application
    Filed: December 27, 2018
    Publication date: July 4, 2019
    Inventors: Jun-Hyung KIM, Tae-Woo KIM, Han-Ul LEE, Jung-Kyu PARK
  • Publication number: 20190168504
    Abstract: An image processing method includes a first step of matching the image to the target surface, a second step of dividing the target surface into a plurality of preliminary divided regions, a third step of acquiring a first preliminary divided region among the plurality of preliminary divided regions, a fourth step of dividing the target surface into a plurality of final divided regions, on the basis of a preliminary divided image included in the first preliminary divided region of the image matched to the target surface, and a fifth step of setting a print starting position for respective final divided images included in the plurality of final divided regions by using a boundary line that defines the plurality of final divided regions.
    Type: Application
    Filed: February 5, 2019
    Publication date: June 6, 2019
    Applicant: ROBOPRINT CO., LTD.
    Inventor: Jung Kyu PARK
  • Publication number: 20190131553
    Abstract: Disclosed is a flexible display that is slim for flexibility, is controlled in stiffness, and has improved reliability owing to a structure of a non-folding portion thereof.
    Type: Application
    Filed: October 30, 2018
    Publication date: May 2, 2019
    Inventors: Jung-Kyu PARK, Tae-Woo KIM
  • Patent number: 10239309
    Abstract: An image processing method includes a first step of matching the image to the target surface, a second step of dividing the target surface into a plurality of preliminary divided regions, a third step of acquiring a first preliminary divided region among the plurality of preliminary divided regions, a fourth step of dividing the target surface into a plurality of final divided regions, on the basis of a preliminary divided image included in the first preliminary divided region of the image matched to the target surface, and a fifth step of setting a print starting position for respective final divided images included in the plurality of final divided regions by using a boundary line that defines the plurality of final divided regions.
    Type: Grant
    Filed: July 9, 2017
    Date of Patent: March 26, 2019
    Assignee: ROBOPRINT CO., LTD.
    Inventor: Jung Kyu Park
  • Patent number: 10236414
    Abstract: A semiconductor light emitting device and a method of manufacturing a semiconductor light emitting device, the device including a first conductive semiconductor layer including a plurality of V-shaped recesses; an active layer on the first conductive semiconductor layer along a shape of the plurality of V-shaped recesses; a second conductive semiconductor layer on the active layer; a reflection assisting layer on the second conductive semiconductor layer; and a reflection layer on the reflection assisting layer, wherein a thickness of the second conductive semiconductor layer is 45 nm to 100 nm.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: March 19, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong Yul Lee, Jung Kyu Park, Jae Sung Hyun
  • Publication number: 20190036068
    Abstract: A flexible display device and an electronic device including the same are disclosed. The flexible display device includes a magnetic body group, which is adhered to a lower plate provided under a display panel by the force of magnetic attraction. Therefore, the flexible display device has improved reliability in spite of frequent folding and unfolding operations and is capable of facilitating a rework process.
    Type: Application
    Filed: July 26, 2018
    Publication date: January 31, 2019
    Inventors: Jun-Hyung KIM, Tae-Woo KIM, Jung-Kyu PARK
  • Patent number: RE48331
    Abstract: A film tension control system according to an embodiment of the present disclosure includes a delamination unit installed on a transfer path of a polarizing plate to delaminate a release film from a polarizing film, the polarizing plate including the polarizing film and the release film attached to one surface of the polarizing film, an inspection unit installed on a transfer path of the polarizing film to inspect if impurities are present in an adhesive layer formed on one surface of the polarizing film, a tension indication unit installed on a movement path of the release film to indicate a degree of tension applied to the release film, a re-lamination unit to re-laminate the release film having passed through the tension indication unit on the adhesive layer of the polarizing film having passed through the inspection unit, and a tension adjustment unit installed on the transfer path of the re-laminated polarizing plate to adjust the tension of the optical film and the release film.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: December 1, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Eun-Je Kim, Eung-Jin Jang, Jae-Ok Shin, Youn-Su Kim, Tae-Sick Kim, Jung-Kyu Park, Young-Sun Bang, Eui-Bong Ha, Dong-Ki Hwang, Jung-Sik Yoon