Patents by Inventor Yoon-ki Park

Yoon-ki 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: 10809554
    Abstract: A display apparatus includes a display panel that displays an image, a light source that supplies light to the display panel, a middle mold positioned between the display panel and the light source, and a quantum dot sheet positioned between the display panel and the middle mold that converts a wavelength of light emitted from the light source, and the middle mold includes a color compensator having blue color that provides uniform white light to outside of the display panel.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: October 20, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoon Ki Park, Nae Won Jang, Won Yeop Jang, Byoung Jin Cho
  • Publication number: 20200325165
    Abstract: The present invention relates to a ligand compound, a catalyst system for olefin oligomerization and a method for oligomerizing an olefin using same. The catalyst system for olefin oligomerization according to the present invention exhibits high selectivity to 1-hexene or 1-octene while having excellent catalytic activity, thus enabling more efficient preparation of alpha-olefins.
    Type: Application
    Filed: June 30, 2020
    Publication date: October 15, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Seul Ki Im, Yong Ho Lee, Ki Soo Lee, Eun Ji Shin, Jin Young Park, Seok Pil Sa, Yoon Ki Hong
  • Publication number: 20200275951
    Abstract: An access sheath is provided. The access sheath comprises: an outer sheath extending to be long in one direction, and having an insertion space formed in a lengthwise direction; and an inner sheath drawn into the insertion space of the outer sheath, and having a plurality of balloons, wherein the outer sheath comprises: an outer body having a cutting gap formed along the lengthwise direction of the outer sheath; and an elastic connection part filled in the cutting gap so as to connect a cutting area of the outer body, and provided as an elastic material more flexible than that of the outer body, wherein the elastic connection part expands and the diameter of the outer body increases according to an expansion of the balloons.
    Type: Application
    Filed: September 18, 2018
    Publication date: September 3, 2020
    Applicant: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Jung Ki JO, Tae Ho LIM, Sung Yul PARK, Hae Young PARK, Yong Tae KIM, Hong Sang MOON, Hong Yong CHOI, Seung Wook LEE, Yoon Je LEE
  • Patent number: 10745426
    Abstract: The present invention relates to a ligand compound, a catalyst system for olefin oligomerization and a method for oligomerizing an olefin using same. The catalyst system for olefin oligomerization according to the present invention exhibits high selectivity to 1-hexene or 1-octene while having excellent catalytic activity, thus enabling more efficient preparation of alpha-olefins.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: August 18, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Seul Ki Im, Yong Ho Lee, Ki Soo Lee, Eun Ji Shin, Jin Young Park, Seok Pil Sa, Yoon Ki Hong
  • Patent number: 10733951
    Abstract: A display device and a driving method thereof are disclosed. In one aspect, the display device includes a display panel including a plurality of pixel rows, a data driver configured to transfer data voltages to the display panel, a gate driver configured to transfer gate signals to the display panel, and a signal controller configured to control the data driver and the gate driver. The pixel rows are divided into i (i is a natural number of 2 or more) pixel row groups including a plurality of pixel rows, respectively. The display panel displays one still image for one frame set including the i sequential frames, and each of the i pixel row groups is charged by receiving the data voltage for each frame of the frame set, and the frames in which the i pixel row groups are charged are different from each other.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: August 4, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ik Hyun Ahn, Yoon Gu Kim, Bong Im Park, Seon Ki Kim
  • Patent number: 10688482
    Abstract: A method for olefin oligomerization comprising i) injecting an olefin monomer and a solvent into a continuous stirred tank reactor; ii) injecting an oligomerization catalyst system comprising a ligand compound, a transition metal compound, and a co-catalyst into the continuous stirred tank reactor; and iii) performing a multimerization reaction of the olefin monomer, wherein a ratio of the flowing rates of the olefin monomer and the solvent is from 1:1 to 2:1.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: June 23, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Yoon Ki Hong, Yong Ho Lee, Eun Ji Shin, Ki Soo Lee, Jin Young Park, Seok Pil Sa, Seul Ki Im
  • Patent number: 10618514
    Abstract: An apparatus for activating a pedestrian detection and collision mitigation system (PDCMS) of a vehicle includes: an engine management system (EMS) acquiring speed information of the vehicle in real-time; an image collecting unit recognizing a pedestrian positioned within a driving lane of the vehicle and detecting information of a relative speed or a distance between the pedestrian and the vehicle, when a speed of the vehicle is greater than or equal to a set speed; and an electronic control unit (ECU) activating a PDCMS function based on a mapping table using the speed information of the vehicle and information of a motion or a distance of the pedestrian with respect to the vehicle, and controlling a warning unit to inform a driver of a collision of the pedestrian with the vehicle. The PDCMS function includes activating an operation of an active hood, activating an operation of the warning unit, and activating an operation of a brake regardless of whether the driver operates the brake.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: April 14, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yoon Soo Kim, Eung Seo Kim, Suk Ki Min, Dong Hyun Sung, Seung Wook Park, Yong Seok Kwon, Sang Min Lee, Tae Young Lee, Min Byeong Lee, Woo Sung Kim, In Yong Jung
  • Publication number: 20200050046
    Abstract: A display apparatus includes a display panel that displays an image, a light source that supplies light to the display panel, a middle mold positioned between the display panel and the light source, and a quantum dot sheet positioned between the display panel and the middle mold that converts a wavelength of light emitted from the light source, and the middle mold includes a color compensator having blue color that provides uniform white light to outside of the display panel
    Type: Application
    Filed: June 4, 2019
    Publication date: February 13, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoon Ki PARK, Nae Won JANG, Won Yeop JANG, Byoung Jin CHO
  • Publication number: 20200005722
    Abstract: A display device and a driving method thereof are disclosed. In one aspect, the display device includes a display panel including a plurality of pixel rows, a data driver configured to transfer data voltages to the display panel, a gate driver configured to transfer gate signals to the display panel, and a signal controller configured to control the data driver and the gate driver. The pixel rows are divided into i (i is a natural number of 2 or more) pixel row groups including a plurality of pixel rows, respectively. The display panel displays one still image for one frame set including the i sequential frames, and each of the i pixel row groups is charged by receiving the data voltage for each frame of the frame set, and the frames in which the i pixel row groups are charged are different from each other.
    Type: Application
    Filed: September 9, 2019
    Publication date: January 2, 2020
    Inventors: Ik Hyun Ahn, Yoon Gu Kim, Bong Im Park, Seon Ki Kim
  • Publication number: 20190389458
    Abstract: An apparatus for activating a pedestrian detection and collision mitigation system (PDCMS) of a vehicle includes: a front detection sensor detecting a presence of a pedestrian on a driving lane of the vehicle, gaze information of the pedestrian, and a distance and a relative speed between the pedestrian and the vehicle; a vehicle sensor detecting at least any one of a speed, an acceleration, a steering angle, a steering angular velocity, or a pressure of a master cylinder of the vehicle; an electronic control unit activating a PDCMS function based on information detected by the front detection sensor and the vehicle sensor; and a warning unit operated to inform a driver of a collision of the pedestrian with the vehicle by a control of the electronic control unit.
    Type: Application
    Filed: September 3, 2019
    Publication date: December 26, 2019
    Inventors: Yoon Soo KIM, Eung Seo KIM, Suk Ki MIN, Dong Hyun SUNG, Seung Wook PARK, Yong Seok KWON, Sang Min LEE, Tae Young LEE, Min Byeong LEE, Ho Choul JUNG, In Yong JUNG
  • Patent number: 10457773
    Abstract: A method of preparing a polyalkylene carbonate resin is provided. More particularly, a method of preparing a polyalkylene carbonate resin capable of preventing polymer degradation and improving physical properties and quality of a final resin product, in which, after polymerization of polyalkylene carbonate, by-products are removed by using a large amount of water to purify a reaction mixture, and in a subsequence process of removing a catalyst residue, a primary purification method is conducted by using a filter so that a content of the catalyst in the reaction mixture is less than 1% by weight, is provided.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: October 29, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Jung Min Sohn, Seung Young Park, Jin Woo Lee, Yoon Jung Kim, Taek Jun Jung, Yun Ki Cho, Yong Hee An, Jun Wye Lee
  • Patent number: 10435018
    Abstract: An apparatus for activating a pedestrian detection and collision mitigation system (PDCMS) of a vehicle includes: a front detection sensor detecting a presence of a pedestrian on a driving lane of the vehicle, gaze information of the pedestrian, and a distance and a relative speed between the pedestrian and the vehicle; a vehicle sensor detecting at least any one of a speed, an acceleration, a steering angle, a steering angular velocity, or a pressure of a master cylinder of the vehicle; an electronic control unit activating a PDCMS function based on information detected by the front detection sensor and the vehicle sensor; and a warning unit operated to inform a driver of a collision of the pedestrian with the vehicle by a control of the electronic control unit.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: October 8, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Yoon Soo Kim, Eung Seo Kim, Suk Ki Min, Dong Hyun Sung, Seung Wook Park, Yong Seok Kwon, Sang Min Lee, Tae Young Lee, Min Byeong Lee, Ho Choul Jung, In Yong Jung
  • Patent number: 10410598
    Abstract: A display device and a driving method thereof are disclosed. In one aspect, the display device includes a display panel including a plurality of pixel rows, a data driver configured to transfer data voltages to the display panel, a gate driver configured to transfer gate signals to the display panel, and a signal controller configured to control the data driver and the gate driver. The pixel rows are divided into i (i is a natural number of 2 or more) pixel row groups including a plurality of pixel rows, respectively. The display panel displays one still image for one frame set including the i sequential frames, and each of the i pixel row groups is charged by receiving the data voltage for each frame of the frame set, and the frames in which the i pixel row groups are charged are different from each other.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: September 10, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ik Hyun Ahn, Yoon Gu Kim, Bong Im Park, Seon Ki Kim
  • Patent number: 10302256
    Abstract: A lighting apparatus including a plurality of frames connected to each other in the lengthwise direction; a connector, which is arranged between the plurality of frames and interconnects the plurality of frames by including a portion inserted into one of the plurality of frames, and including another portion inserted into the other one of the plurality of frames; and a light source arranged on the plurality of frames.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: May 28, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-kwang Kwon, Joo-hun Han, Bang-won Oh, Du-su Kwon, Hyun-kyung Kim, Yoon-ki Park, Yoon-suk Lee
  • Patent number: 9939680
    Abstract: Provided is a display apparatus includes a display panel, a light source configured to emit light toward the display panel, a light diffusion plate disposed between the display panel and the light source such that light emitted from the light source is diffused and guided to the display panel, and at least one light diffusion layer provided on the light diffusion plate, having a light source corresponding portion corresponding to the light source, and including a plurality of light transmitting portions provided with a higher density at an edge portion of the light source corresponding portion than at a central portion of the light source corresponding portion.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: April 10, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoung-Jin Cho, Dae-Hee Lee, Yoon Ki Park, Ho Seok Lee, Nae-Won Jang, Han Mi Choi
  • Publication number: 20170160591
    Abstract: Provided is a display apparatus includes a display panel, a light source configured to emit light toward the display panel, a light diffusion plate disposed between the display panel and the light source such that light emitted from the light source is diffused and guided to the display panel, and at least one light diffusion layer provided on the light diffusion plate, having a light source corresponding portion corresponding to the light source, and including a plurality of light transmitting portions provided with a higher density at an edge portion of the light source corresponding portion than at a central portion of the light source corresponding portion.
    Type: Application
    Filed: June 2, 2016
    Publication date: June 8, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoung-Jin CHO, Dae-Hee LEE, Yoon Ki PARK, Ho Seok LEE, Nae-Won JANG, Han Mi CHOI
  • Publication number: 20160312961
    Abstract: A lighting apparatus including a plurality of frames connected to each other in the lengthwise direction; a connector, which is arranged between the plurality of frames and interconnects the plurality of frames by including a portion inserted into one of the plurality of frames, and including another portion inserted into the other one of the plurality of frames; and a light source arranged on the plurality of frames.
    Type: Application
    Filed: April 18, 2016
    Publication date: October 27, 2016
    Inventors: Young-kwang Kwon, Joo-hun Han, Bang-won Oh, Du-su Kwon, Hyun-kyung Kim, Yoon-ki Park, Yoon-suk Lee