Patents by Inventor Hee-Jae Lee

Hee-Jae Lee 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: 20210226145
    Abstract: A light emitting device, a method of manufacturing the same, and a display device including the same are disclosed. The light emitting device including a first electrode and a second electrode facing each other, an emission layer disposed between the first electrode and the second electrode, the emission layer including quantum dots, and a charge auxiliary layer disposed between the emission layer and the second electrode, wherein the emission layer includes a first surface facing the charge auxiliary layer and an opposite second surface, the quantum dots include a first organic ligand on a surface of the quantum dots, in the emission layer, an amount of the first organic ligand in a portion adjacent to the first surface is larger than an amount of the first organic ligand in a portion adjacent to the second surface.
    Type: Application
    Filed: March 18, 2021
    Publication date: July 22, 2021
    Inventors: Dae Young CHUNG, Kwanghee KIM, Hongkyu SEO, Eun Joo JANG, Oul CHO, Tae Hyung KIM, Yuho WON, Hee Jae LEE
  • Patent number: 10978658
    Abstract: A light emitting device, a method of manufacturing the same, and a display device including the same are disclosed. The light emitting device including a first electrode and a second electrode facing each other, an emission layer disposed between the first electrode and the second electrode, the emission layer including quantum dots, and a charge auxiliary layer disposed between the emission layer and the second electrode, wherein the emission layer includes a first surface facing the charge auxiliary layer and an opposite second surface, the quantum dots include a first organic ligand on a surface of the quantum dots, in the emission layer, an amount of the first organic ligand in a portion adjacent to the first surface is larger than an amount of the first organic ligand in a portion adjacent to the second surface.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: April 13, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dae Young Chung, Kwanghee Kim, Hongkyu Seo, Eun Joo Jang, Oul Cho, Tae Hyung Kim, Yuho Won, Hee Jae Lee
  • Publication number: 20200083470
    Abstract: A light emitting device, a method of manufacturing the same, and a display device including the same are disclosed. The light emitting device including a first electrode and a second electrode facing each other, an emission layer disposed between the first electrode and the second electrode, the emission layer including quantum dots, and a charge auxiliary layer disposed between the emission layer and the second electrode, wherein the emission layer includes a first surface facing the charge auxiliary layer and an opposite second surface, the quantum dots include a first organic ligand on a surface of the quantum dots, in the emission layer, an amount of the first organic ligand in a portion adjacent to the first surface is larger than an amount of the first organic ligand in a portion adjacent to the second surface.
    Type: Application
    Filed: August 23, 2019
    Publication date: March 12, 2020
    Inventors: Dae Young CHUNG, Kwanghee KIM, Hongkyu SEO, Eun Joo JANG, Oul CHO, Tae Hyung KIM, Yuho WON, Hee Jae LEE
  • Publication number: 20170101164
    Abstract: The present invention relates to an inflatable stand up paddle (SUP) board that has a separate air chamber formed therein in addition to a tube that forms a main body, thereby achieving more enhanced safety, and conforms to national safety regulations. The SUP board comprises: a main body that is formed in the shape of a long plate and has a plurality of shape maintaining lines, each having opposite ends coupled to upper and lower internal surfaces, and a first air injection port installed on the front side of the upper surface thereof; a side sheet air-tightly bonded to the main body along the outer periphery thereof to form an air tube along with the main body; and an inner tube that is provided on the outer periphery of the main body and has a second air injection port installed on the outer surface of the side sheet to allow air to be injected thereunto, wherein the outer surface of the inner tube is attached to the internal surface of the side sheet.
    Type: Application
    Filed: May 19, 2015
    Publication date: April 13, 2017
    Inventors: Hee jae LEE, Lee young LIM
  • Patent number: 9280204
    Abstract: A method for tracking a user's gaze point using a mobile terminal is provided. The method includes detecting the user's eye area from a camera that is mounted in the mobile terminal and selecting reference points of the eye area, detecting a pupil corresponding to an interest area that is obtained from the reference points, generating a first virtual grid of the eye area using a pickup image of a gaze point of the pupil corresponding to each corner of the display and generating a second virtual grid having the same division areas as those of the first virtual grid in the display, and mapping a position of the pupil within the second virtual grid area corresponding to a position of the pupil within the first virtual grid.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: March 8, 2016
    Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, CATHOLIC UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Soo Chang Kim, Young Hoon Kim, Seung Chan Bang, Hee-Jae Lee, Sang-Goog Lee
  • Publication number: 20140313124
    Abstract: A method for tracking a user's gaze point using a mobile terminal is provided. The method includes detecting the user's eye area from a camera that is mounted in the mobile terminal and selecting reference points of the eye area, detecting a pupil corresponding to an interest area that is obtained from the reference points, generating a first virtual grid of the eye area using a pickup image of a gaze point of the pupil corresponding to each corner of the display and generating a second virtual grid having the same division areas as those of the first virtual grid in the display, and mapping a position of the pupil within the second virtual grid area corresponding to a position of the pupil within the first virtual grid.
    Type: Application
    Filed: April 21, 2014
    Publication date: October 23, 2014
    Applicants: Electronics and Telecommunications Research Institute, CATHOLIC UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Soo Chang KIM, Young Hoon KIM, Seung Chan BANG, Hee-Jae LEE, Sang-Goog LEE
  • Publication number: 20140248075
    Abstract: Disclosed is a paddle shaft length adjustment device in which a connection end portion of a large-diameter first shaft is connected and secured to a connector pipe via simplified insertion to ensure easy assembly between the first shaft and the connector pipe, and a second shaft is secured by reducing the diameter of a contractible pipe portion of the resilient connector pipe, thereby allowing the length adjustment device to be repeatedly used with a paddle shaft formed of a non-elastic material, such as aluminum.
    Type: Application
    Filed: February 2, 2012
    Publication date: September 4, 2014
    Applicant: WOOSUNG I.B CO., LTD.
    Inventor: Hee Jae Lee
  • Publication number: 20110109074
    Abstract: Disclosed is a book page holder interposed between pages of a book to prevent the current page from turning. The book page holder includes a body having a rod shape, and a page turning stopper formed on a surface of the body and having a concave outline to closely make contact with a binding part of the book.
    Type: Application
    Filed: July 3, 2009
    Publication date: May 12, 2011
    Inventor: Hee Jae Lee
  • Publication number: 20100291497
    Abstract: The electric gas lighter according to the present invention is characterized in that it comprises a body and a switch which is able to slide relative to the body, and the abovementioned switch comprises a clip part which is able to deform resiliently in such a way as to be inserted into a cigarette packet, the abovementioned clip part comprises a guide part having a width wider than the thickness of the wall surface of a cigarette packet and comprises a securing part having a width narrower than the thickness if the wall surface if the above-mentioned cigarette packet, and it can be carried around inserted in a cigarette packet or the like and can be lit up while it is attached to the cigarette packet.
    Type: Application
    Filed: January 2, 2009
    Publication date: November 18, 2010
    Inventor: Hee Jae Lee
  • Publication number: 20020042932
    Abstract: This invention relates to a process for increasing crop yield or biomass by enhancing photosynthetic efficiency thereof, which comprises transforming a host crop with a vector containing protoporphyrinogen oxidase (Protox) gene.
    Type: Application
    Filed: June 11, 2001
    Publication date: April 11, 2002
    Inventors: Kyoung-Whan Back, Hee-Jae Lee, Ja-Ock Guh, Sung-Beom Lee