Patents by Inventor Bong Je Park

Bong Je 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: 11479648
    Abstract: An embodiment of the inventive concept provides a method of manufacturing a polymer film, the method including: preparing a first copolymer containing a first functional group; preparing a second copolymer containing a second functional group; preparing a first compound containing a third functional group; and performing a cross-linking reaction by mixing the first copolymer, the second copolymer, and the first compound, wherein the cross-linking reaction includes a reaction of the first functional group and the second functional group and a reaction of the second functional group and the third functional group, the first compound includes a polar group and any one group selected from among a vinyl group, an aryl group, and an acrylate group, and the third functional group has reactivity with respect to the second functional group, but does not have reactivity with respect to the first functional group.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: October 25, 2022
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seung Koo Park, Bong Je Park, Mee Jeong Choi, Suntak Park, Eun Jin Shin, Sungryul Yun, Jae Woong Yoon
  • Patent number: 11275444
    Abstract: The present invention relates to a shape-variable electronic device and an operation method of the same and, more specifically, the shape-variable electronic device includes: a substrate having a cell region; a light source unit on the cell region; and a flexible layer vertically spaced apart from the light source unit. The flexible layer includes an actuator part that changes a shape of the flexible layer, and the actuator part includes: a photo-thermal response part that receives light emitted from the light source unit and generates thermal energy; a deformation part which receives the thermal energy from the photo-thermal response part and of which mechanical stiffness is reduced; and a top electrode and a bottom electrode on both surfaces of the deformation part, respectively.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: March 15, 2022
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung Ryul Yun, Suntak Park, Seongcheol Mun, Bong Je Park, Seung Koo Park, JaeWoong Yoon, Inwook Hwang, Jeong Muk Lim
  • Patent number: 11204494
    Abstract: Provided is focal variable device system including a focus variable element including an absorbing layer, and an adjustable light source configured to cause an adjustable light to enter the focus variable element. The absorbing layer includes a thermal expansion material that absorbs the adjustable light and thermally expands.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: December 21, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Suntak Park, Bong Je Park, Seung Koo Park, Jae Woong Yoon, Eun Jin Shin
  • Publication number: 20210365121
    Abstract: The present invention relates to a shape-variable electronic device and an operation method of the same and, more specifically, the shape-variable electronic device includes: a substrate having a cell region; a light source unit on the cell region; and a flexible layer vertically spaced apart from the light source unit. The flexible layer includes an actuator part that changes a shape of the flexible layer, and the actuator part includes: a photo-thermal response part that receives light emitted from the light source unit and generates thermal energy; a deformation part which receives the thermal energy from the photo-thermal response part and of which mechanical stiffness is reduced; and a top electrode and a bottom electrode on both surfaces of the deformation part, respectively.
    Type: Application
    Filed: January 21, 2020
    Publication date: November 25, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Sung Ryul YUN, Suntak PARK, Seongcheol MUN, Bong Je PARK, Seung Koo PARK, JaeWoong YOON, Inwook HWANG, Jeong Muk LIM
  • Publication number: 20210292495
    Abstract: Provided are a composition for a light transmittance control film, and a light transmittance control film. According to the inventive concept, the light transmittance control film includes a matrix part including a copolymer and a polymer chain which is grafted to the copolymer; and a dispersed part including a polymer derived from a first monomer, and are provided in the matrix part, wherein the polymer chain is derived from the first monomer, first light transmittance is shown while external force is applied, and second light transmittance which is greater than the first light transmittance may be shown after the external force is removed.
    Type: Application
    Filed: May 19, 2021
    Publication date: September 23, 2021
    Inventors: Seung Koo PARK, Sung Ryul YUN, Ki Uk KYUNG, Mi Jeong CHOI, Bong Je PARK, Suntak PARK, Saekwang NAM, Seongcheol MUN, Eun Jin SHIN, Jeong Mook LIM
  • Publication number: 20210198439
    Abstract: An embodiment of the inventive concept provides a method of manufacturing a polymer film, the method including: preparing a first copolymer containing a first functional group; preparing a second copolymer containing a second functional group; preparing a first compound containing a third functional group; and performing a cross-linking reaction by mixing the first copolymer, the second copolymer, and the first compound, wherein the cross-linking reaction includes a reaction of the first functional group and the second functional group and a reaction of the second functional group and the third functional group, the first compound includes a polar group and any one group selected from among a vinyl group, an aryl group, and an acrylate group, and the third functional group has reactivity with respect to the second functional group, but does not have reactivity with respect to the first functional group.
    Type: Application
    Filed: May 29, 2020
    Publication date: July 1, 2021
    Inventors: Seung Koo PARK, Bong Je PARK, Mee Jeong CHOI, Suntak PARK, Eun Jin SHIN, Sungryul YUN, Jae Woong YOON
  • Patent number: 11041055
    Abstract: Provided are a composition for a light transmittance control film, and a light transmittance control film. According to the inventive concept, the light transmittance control film includes a matrix part including a copolymer and a polymer chain which is grafted to the copolymer; and a dispersed part including a polymer derived from a first monomer, and are provided in the matrix part, wherein the polymer chain is derived from the first monomer, first light transmittance is shown while external force is applied, and second light transmittance which is greater than the first light transmittance may be shown after the external force is removed.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: June 22, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seung Koo Park, Sung Ryul Yun, Ki Uk Kyung, Mi Jeong Choi, Bong Je Park, Suntak Park, Saekwang Nam, Seongcheol Mun, Eun Jin Shin, Jeong Mook Lim
  • Patent number: 10996432
    Abstract: A reflective active variable lens includes an upper electrode, a lower electrode disposed in parallel to the upper electrode, a deformation part disposed between the upper electrode and the lower electrode, a reflective part disposed on the upper electrode, and a support part disposed to surround the deformation part. Here, the deformation part and the support part are connected to each other to provide a single structure, the deformation part is expanded from an initial shape when an electric field is formed between the upper electrode and the lower electrode, and the expanded deformation part is contracted when the electric field is removed and restored to the initial shape.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: May 4, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Suntak Park, Bong Je Park, Ki-Uk Kyung, Seung Koo Park, Sung Ryul YuN, Seongcheol Mun, Jeong Muk Lim
  • Publication number: 20200209613
    Abstract: Provided is focal variable device system including a focus variable element including an absorbing layer, and an adjustable light source configured to cause an adjustable light to enter the focus variable element. The absorbing layer includes a thermal expansion material that absorbs the adjustable light and thermally expands.
    Type: Application
    Filed: December 19, 2019
    Publication date: July 2, 2020
    Inventors: Suntak PARK, Bong Je PARK, Seung Koo PARK, Jae Woong YOON, Eun Jin SHIN
  • Patent number: 10649116
    Abstract: An auto focusing lens includes an active lens including a lens body including electroactive polymer and a transparent electrode at least partially coated on a surface of the lens body, and a controller controlling the focus of the active lens by applying a voltage to the transparent electrode.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: May 12, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Ki-Uk Kyung, Bong Je Park, Sang-Youn Kim, Sae Kwang Nam, Sun Tak Park, Sung Ryul Yun
  • Publication number: 20200032013
    Abstract: Provided are a composition for a light transmittance control film, and a light transmittance control film. According to the inventive concept, the light transmittance control film includes a matrix part including a copolymer and a polymer chain which is grafted to the copolymer; and a dispersed part including a polymer derived from a first monomer, and are provided in the matrix part, wherein the polymer chain is derived from the first monomer, first light transmittance is shown while external force is applied, and second light transmittance which is greater than the first light transmittance may be shown after the external force is removed.
    Type: Application
    Filed: April 19, 2018
    Publication date: January 30, 2020
    Inventors: Seung Koo PARK, Sung Ryul YUN, Ki Uk KYUNG, Mi Jeong CHOI, Bong Je PARK, Suntak PARK, Saekwang NAM, Seongcheol MUN, Eun Jin SHIN, Jeong Mook LIM
  • Patent number: 10495843
    Abstract: The present disclosure relates to an imaging apparatus and a method for operating the same, and more particularly, to a high-speed lens moving technique capable of effective multi-view angle and multi-focus images for a short period of time and an image photographing and sorting technique according the high-speed lens moving technique. Accordingly, the movement of lenses is performed using a new technique without applying the existing slow lens moving technique performed using a motor, etc., so that it is possible to acquire multi-view angle and multi-focus images using one imaging apparatus for a short period of time.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: December 3, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Ki-Uk Kyung, Sae Kwang Nam, Bong Je Park, Sun Tak Park, Sung Ryul Yun
  • Patent number: 10338280
    Abstract: Disclosed is a varifocal lens module. A varifocal lens module according to an embodiment includes a lens formed of a flexible and transparent material and having a focal length varying according to a variable shape thereof; at least one driving part expanded or contracted in response to an electric signal; and at least one structural body configured to physically or chemically connect the lens and each driving part.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: July 2, 2019
    Assignee: ELECTRONICS & TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Ki Uk Kyung, Sae Kwang Nam, Sung Ryul Yun, Bong Je Park, Sun Tak Park, Seung Koo Park
  • Publication number: 20190196149
    Abstract: A reflective active variable lens includes an upper electrode, a lower electrode disposed in parallel to the upper electrode, a deformation part disposed between the upper electrode and the lower electrode, a reflective part disposed on the upper electrode, and a support part disposed to surround the deformation part. Here, the deformation part and the support part are connected to each other to provide a single structure, the deformation part is expanded from an initial shape when an electric field is formed between the upper electrode and the lower electrode, and the expanded deformation part is contracted when the electric field is removed and restored to the initial shape.
    Type: Application
    Filed: December 10, 2018
    Publication date: June 27, 2019
    Inventors: Suntak PARK, Bong Je PARK, Ki-Uk KYUNG, Seung Koo PARK, Sung Ryul YUN, Seongcheol MUN, Jeong Muk LIM
  • Patent number: 10232133
    Abstract: Provided herein is an endoscope comprising an end portion configured to take an image; a controller configured to control the end portion and process the image input by the end portion; and a connector configured to connect the end portion and the controller, wherein the end portion is provided with at least one lens apparatus surrounding an exterior surface of the end portion, the lens apparatus being adapted to be brought to various focuses, thereby providing an effect of obtaining images from various viewpoints at a short period of time, and when used as an endoscope, obviating the need to move the multi-view and multi-focused variable lens at the end portion, making it possible to reduce the thickness of the connector that connects the end portion of the endoscope with the controller.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: March 19, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sae Kwang Nam, Ki Uk Kyung, Bong Je Park, Sun Tak Park, Sung Ryul Yun
  • Publication number: 20180267215
    Abstract: An auto focusing lens includes an active lens including a lens body including electroactive polymer and a transparent electrode at least partially coated on a surface of the lens body, and a controller controlling the focus of the active lens by applying a voltage to the transparent electrode.
    Type: Application
    Filed: May 17, 2018
    Publication date: September 20, 2018
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Ki-Uk KYUNG, Bong Je PARK, Sang-Youn KIM, Sae Kwang NAM, Sun Tak PARK, Sung Ryul YUN
  • Patent number: 10007034
    Abstract: An auto focusing lens includes an active lens including a lens body including electroactive polymer and a transparent electrode at least partially coated on a surface of the lens body, and a controller controlling the focus of the active lens by applying a voltage to the transparent electrode.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: June 26, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Ki-Uk Kyung, Bong Je Park, Sang-Youn Kim, Sae Kwang Nam, Sun Tak Park, Sung Ryul Yun
  • Patent number: 10009546
    Abstract: There is provided an optical imaging device including a flexible image sensor and an actuator that expands or contracts the flexible image sensor on a two-dimensional plane. It is possible to minimize distortion aberration and control a viewing angle and magnification.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: June 26, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sun Tak Park, Ki Uk Kyung, Sae Kwang Nam, Bong Je Park, Seung Koo Park, Sung Ryul Yun
  • Patent number: 9996199
    Abstract: Provided is a thin film type actuator having multi-operation points, capable of various feels of touch or sounds. The film type actuator includes an upper plate and a lower plate, formed of a single plate. Between the upper plate and the lower plate, pairs of electrode parts capable of attracting one another via an electrostatic force. Since each of the pairs of electrode parts functions as an operation point and the upper plate and the lower plate are formed of the single plate, movements of the respective operation points in such a way that a new physical movement different from an original individual movement is generated to generate a haptic feel or a sound. It is possible to generate various haptic feels or sounds by modulating and combining amplitudes and frequencies of the respective operation points.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: June 12, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Suntak Park, Ki-Uk Kyung, Sung Ryul Yun, Young Sung Kim, Jong-uk Lee, Bong Je Park
  • Patent number: 9992433
    Abstract: There are provided an image processing apparatus and a control method thereof. An image processing apparatus includes an image sensor for acquiring a target image, an image processing module for performing focusing on a specific area of the acquired target image and determining a focal surface of the target image on the basis of the performed focusing, and a drive control module for controlling the curvature of the image sensor, based on the determined focal surface.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: June 5, 2018
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sun Tak Park, Ki-Uk Kyung, Sae Kwang Nam, Bong Je Park, Seung Koo Park, Sung Ryul Yun