Patents by Inventor Si In KIM

Si In KIM 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: 12102002
    Abstract: An object of the present invention is to provide, as a material for a highly efficient and highly durable organic EL element, an organic compound that has excellent properties, including excellent electron-injecting/transporting capability, hole-blocking capability, and high stability in the form of a thin film. Another object of the present invention is to provide a highly efficient and highly durable organic EL element by using this compound. The present invention focuses on the properties of the benzazole ring, which has affinity for electrons, and specifically focuses on the capability of its nitrogen atom to coordinate to a metal and also on excellent heat resistance. The inventors have thus designed and chemically synthesized various compounds having a benzazole ring structure, and then experimentally produced organic EL elements including the compounds, followed by thoroughly evaluating the characteristics thereof.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: September 24, 2024
    Assignee: HODOGAYA CHEMICAL CO., LTD.
    Inventors: Kouki Kase, Si-In Kim, Ji-Yung Kim, Yuta Hirayama, Kazuyuki Suruga, Shuichi Hayashi
  • Publication number: 20240315116
    Abstract: Provided is a display device including a display panel including a light emitting element layer and a light control layer on the light emitting element layer, and a color filter panel on the display panel, the color filter panel includes a base layer, a color filter layer below the base layer, a low refractive layer below the color filter layer, and a spacer between the color filter layer and the low refractive layer, and sides of the spacer are covered by the low refractive layer.
    Type: Application
    Filed: January 8, 2024
    Publication date: September 19, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: JEONGKI KIM, JONG-HOON KIM, JANG-IL KIM, SI-WAN JEON, SEOK-JOON HONG
  • Publication number: 20240306505
    Abstract: The present invention relates to a high-efficiency organic light-emitting device having excellent light-emitting characteristics in light-emitting efficiency, etc. by employing an anthracene derivative compound having a characteristic structure as a host in a light-emitting layer. By using the high-efficiency organic light-emitting device, according to the present invention, the organic light-emitting device can be utilized for various display devices such as flat panel, flexible, and wearable displays as well as a lighting device.
    Type: Application
    Filed: March 8, 2022
    Publication date: September 12, 2024
    Inventors: Se-jin LEE, Si-in KIM, Seok-bae PARK, Hee-dae KIM, Yeong-tae CHOI, Seung-soo LEE, Ji-yung KIM, Kyeong-hyeon KIM, Kyung-tae KIM, Myeong-jun KIM, Tae-gyun LEE, Joon-ho KIM
  • Publication number: 20240287230
    Abstract: A copolymer and a dispersion using same, the copolymer including two or more monomers selected from among a monomer containing two or more substituted or unsubstituted aromatic rings, a monomer containing a straight-chain or branched aliphatic hydrocarbon having 5 to 22 carbon atoms, and a polar monomer containing any one selected from the group consisting of cyano (CN), pyrrolidone (NC4H6O) and carboxylic acid (COOH).
    Type: Application
    Filed: February 21, 2022
    Publication date: August 29, 2024
    Inventors: Kwang-In KIM, Jin-Ju EOM, Chang-Beom KIM, Se-Man KWON, Si-Jin SONG, Jae-Hee HAN, Seung-Heon KIM, Chan-Su PARK
  • Publication number: 20240279692
    Abstract: The present invention relates to a process of recovering alkali metal salt hydrate and 3-hydroxypropionic acid, comprising: forming and separating 3-hydroxypropionic acid salt crystal from a concentrate containing 3-hydroxypropionic acid in the presence of an alkali metal salt; and adding an acid to the aqueous solution containing the separated 3-hydroxypropionic acid salt crystal to form and separate an alkali metal salt hydrate and 3-hydroxypropionic acid.
    Type: Application
    Filed: November 29, 2022
    Publication date: August 22, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Sang Won HAN, Taeho KIM, Yongbok JEONG, Sangbum AHN, Woochul JUNG, Donggyun KANG, Si Min KIM, Jimyeong KIM, Yongju BANG, Jeong Eun KIM, Jae Hoon CHOE
  • Publication number: 20240270709
    Abstract: The present invention relates to a novel heterocyclic compound which can be used for an organic light-emitting device, and an organic light-emitting device comprising same, wherein [Chemical Formula A] above is as set forth in the detailed description of the invention.
    Type: Application
    Filed: May 12, 2022
    Publication date: August 15, 2024
    Inventors: Si-In KIM, Se-Jin LEE, Seok-Bae PARK, Hee-Dae KIM, Yeong-Tae CHOI, Ji-Ying KIM, Kyungtae KIM, Myeong-Jun KIM, Kyeong-Hyeon KIM, Seung-Soo LEE, Tae Gyun LEE, Joon-Ho KIM
  • Patent number: 12037332
    Abstract: A compound including a benzimidazole ring structure, represented by general formula (1). (In formula (1), X1 and X2 may be the same or different and each represent a specific carbon atom or a nitrogen atom, Ar represents a specific group, R1 and R2 may be the same or different and each represent a specific group, and m is an integer of 0-4.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: July 16, 2024
    Assignee: HODOGAYA CHEMICAL CO., LTD.
    Inventors: Kouki Kase, Su-Jin Lee, Si-In Kim, Kazuyuki Suruga, Yuta Hirayama
  • Patent number: 12024527
    Abstract: An object of the present invention is to provide, as a material for a highly efficient and highly durable organic EL element, an organic compound having excellent properties, including excellent electron-injecting/transporting capability, hole-blocking capability, and high stability in the form of a thin film. Another object of the present invention is to provide a highly efficient and highly durable organic EL element by using this compound. The compound having an azabenzoxazole ring structure of the present invention has excellent heat resistance, and good electron-transporting capability. An organic EL element having an electron-transporting layer, a hole-blocking layer, a light-emitting layer, or an electron-injecting layer including the compound had favorable element characteristics.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: July 2, 2024
    Assignee: HODOGAYA CHEMICAL CO., LTD.
    Inventors: Kouki Kase, Si-In Kim, Ji-Yung Kim, Yuta Hirayama
  • Publication number: 20240196736
    Abstract: The present invention relates to an organic light-emitting device employing, as a host of a light emission layer, an anthracene derivative compound having a characteristic structure by introduction of a benzofuran structure into the anthracene backbone, and as a dopant of the light emission layer, a polycyclic compound having a characteristic structure. The organic light-emitting device according to the present invention is an organic light-emitting device with significantly improved external quantum efficiency and can be advantageously utilized not only for lighting devices but also for various display devices, such as flat, flexible, and wearable displays.
    Type: Application
    Filed: March 8, 2022
    Publication date: June 13, 2024
    Inventors: Kyeong-hyeon KIM, Se-jin LEE, Si-in KIM, Seok-bae PARK, Hee-dae KIM, Yeong-tae CHOI, Seung-soo LEE, Ji-yung KIM, Kyung-tae KIM, Myeong-jun KIM, Tae-gyun LEE, Joon-ho KIM
  • Publication number: 20240164206
    Abstract: The present invention relates to: a pyrene derivative compound having a specific structure; and a high efficiency organic light-emitting device employing the pyrene derivative compound in a light emitting layer and thus having excellent light-emitting characteristics. The organic light-emitting device according to the present invention can be configured as a high efficiency organic light-emitting device having excellent light-emitting characteristics by employing the pyrene derivative compound having the specific structure as a host in the light emitting layer, and thus can be usefully applied industrially in lighting devices, as well as various display devices such as flat, flexible, and wearable displays.
    Type: Application
    Filed: February 15, 2022
    Publication date: May 16, 2024
    Inventors: Se-jin LEE, Si-in KIM, Seok-bae PARK, Hee-dae KIM, Yeong-tae CHOI, Seung-soo LEE, Ji-yung KIM, Kyeong-hyeon KIM, Kyung-tae KIM, Myeong-jun KIM, Tae-gyun LEE, Joon-ho KIM
  • Publication number: 20240155938
    Abstract: An organic light-emitting device according to the present invention uses a pyrene derivative compound having a characteristic structure as a host in a light-emitting layer to realize a long-lifespan and high-efficiency organic light-emitting device having excellent light-emitting characteristics in terms of lifespan and luminescence efficiency. Accordingly, the organic light-emitting device can be usefully applied, in the industrial aspect, for various display devices such as flat panel, flexible, and wearable displays, as well as lighting devices.
    Type: Application
    Filed: February 15, 2022
    Publication date: May 9, 2024
    Inventors: Se-jin LEE, Si-in KIM, Seok-bae PARK, Hee-dae KIM, Yeong-tae CHOI, Seung-soo LEE, Ji-yung KIM, Kyeong-hyeon KIM, Kyung-tae KIM, Myeong-jun KIM, Tae-gyun LEE, Joon-ho KIM
  • Publication number: 20240090318
    Abstract: The present invention relates to a novel heterocyclic compound usable in an organic light-emitting device and to an organic light-emitting device comprising same, wherein [chemical formula A] is as described in the detailed description of the invention.
    Type: Application
    Filed: December 28, 2021
    Publication date: March 14, 2024
    Inventors: Se-Jin LEE, Seok-Bae PARK, Si-In KIM, Hee-Dae KIM, Yeong-Tae CHOI, Ji-Yung KIM, Kyung-Tae KIM, Myeong-Jun KIM, Kyeong-hyeon KIM, Seung-soo LEE, Tae Gyun LEE, Joon-Ho KIM
  • Publication number: 20240057471
    Abstract: The present invention relates to an organic light-emitting device comprising an organic compound represented by [chemical formula A], and, more particularly, to an organic light-emitting device comprising two emission layers between a first electrode and a second electrode and using the organic compound represented by [chemical formula A] in at least one of the two emission layers, [chemical formula A] being the same as that described in the detailed description of the invention.
    Type: Application
    Filed: December 28, 2021
    Publication date: February 15, 2024
    Inventors: Se-Jin LEE, Seok-Bae Park, Si-In KIM, Hee-Dae KIM, Yeong-Tae CHOI, Ji-Yung KIM, Kyung-Tae KIM, Myeong-Jun KIM, Kyeong-hyeon KIM, Seung-soo LEE, Tae-Gyyun LEE, Joon-HO KIM
  • Publication number: 20240023359
    Abstract: The present invention relates to an organic light-emitting device comprising an organic compound represented by [chemical formula A] or [chemical formula B] and, more particularly, to an organic light-emitting device comprising two emission layers between a first electrode and a second electrode and using the organic compound represented by [chemical formula A] or [chemical formula B] in at least one of the two emission layers, [chemical formula A] and [chemical formula B] being as described in the detailed description of the invention.
    Type: Application
    Filed: July 30, 2021
    Publication date: January 18, 2024
    Inventors: Si-in KIM, Se-jin LEE, Seok-bae PARK, Hee-dae KIM, Yeong-tae CHOI, Ji-Yung KIM, Kyungtae KIM, Myeong-jun KIM, Kyeong-Hyeon KIM, Yu-rim LEE, Seung-soo LEE, Tae Gyun LEE, Joon-ho KIM
  • Publication number: 20240016058
    Abstract: The present invention relates to a novel heterocyclic compound usable in an organic light-emitting device and to an organic light-emitting device comprising same, wherein [chemical formula A] and [chemical formula B] are as described in the detailed description of the invention.
    Type: Application
    Filed: July 29, 2021
    Publication date: January 11, 2024
    Inventors: Si-in KIM, Se-jin LEE, Seok-bae PARK, Hee-dae KIM, Yeong-tae CHOI, Ji-yung KIM, Kyungtae KIM, Myeong-jun KIM, Kyeong-hyeon KIM, Yu-rim LEE, Seung-soo LEE, Tae Gyun LEE, Joon-ho KIM
  • Publication number: 20230276706
    Abstract: Disclosed herein are pyrene heterocyclic compounds useful for an organic light-emitting diode and an organic light-emitting diode including same. More specifically, compound represented by [Chemical Formula A] or [Chemical Formula B] and an organic light-emitting diode are provided. [Chemical Formula A] and [Chemical Formula B] are as defined in the Description.
    Type: Application
    Filed: July 20, 2021
    Publication date: August 31, 2023
    Inventors: Soon-wook CHA, Sung-woo KIM, Ji-won LEE, Se-jin LEE, Si-in KIM, Seok-bae PARK, Hee-dae KIM, Yeong-tae CHOI, Seung-soo LEE, Ji-yung KIM, Kyeong-hyeon KIM, Kyung-tae KIM, Myeong-jun KIM, Tae-gyun LEE, Joon-ho KIM
  • Publication number: 20230252282
    Abstract: A method for deep metric learning per hierarchical step of multi-labels and few-shot inference using the same is provided, which includes sampling a plurality of N multiplets from a learning data set that is expressed by hierarchical multi-labels; configuring the N multiplets into triplets or quadruplets so as to correspond to the number of classes in each hierarchy; performing a metric learning per hierarchical step for a deep neural network model based on the configured triplets and quadruplets; and distributing, to an embedded device, the deep neural network model from which a loss function is removed as the metric learning is completed.
    Type: Application
    Filed: August 3, 2022
    Publication date: August 10, 2023
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyun Woo CHO, Jeong Si KIM
  • Publication number: 20220300803
    Abstract: Disclosed herein are a method for performing a dilated convolution operation using an atypical kernel pattern and a dilated convolutional neural network system using the same. The method for performing a dilated convolution operation includes learning a weight matrix for a kernel of dilated convolution through deep learning, generating an atypical kernel pattern based on the learned weight matrix, and performing a dilated convolution operation on input data by applying the atypical kernel pattern to a kernel of a dilated convolutional neural network.
    Type: Application
    Filed: June 8, 2021
    Publication date: September 22, 2022
    Inventors: Hyun-Woo CHO, Jeong-Si KIM, Hong-Soog KIM, Jin-Wuk SEOK, Seung-Tae HONG
  • Publication number: 20220255021
    Abstract: Disclosed herein is an organic light emitting diode including a novel anthracene compound. More particularly, an organic light emitting diode including an anthracene compound represented by Chemical Formula A; and a compound represented by Chemical Formula B-1 or B-2 is provided. Chemical Formulas A, B-1, and B-2 are as defined in the description.
    Type: Application
    Filed: January 14, 2022
    Publication date: August 11, 2022
    Inventors: Se-Jin Lee, Si-In KIM, Seok-Bae Park, Hee-Dae Kim, Yeong-Tae Choi, Seung-Soo Lee, Ji-Yung Kim, Kyeong-Hyeon Kim, Kyungtae Kim, Myeong-Jun Kim, Tae Gyun Lee, Joon-Ho Kim
  • Publication number: 20220181559
    Abstract: Disclosed are an anthracene derivative with a specific structure and an organic electroluminescent device including the anthracene derivative. The organic electroluminescent device includes a light emitting layer employing the anthracene derivative as a host compound and a polycyclic aromatic derivative with a specific structure as a dopant compound. The use of the host and dopant compounds allows the organic electroluminescent device to have a long lifetime and significantly improved low-voltage characteristics.
    Type: Application
    Filed: December 7, 2021
    Publication date: June 9, 2022
    Applicant: SFC CO., LTD
    Inventors: Se-jin LEE, Si-In KIM, Seok-bae PARK, Hee-dae KIM, Yeong-tae CHOI, Seung-soo LEE, Ji-yung KIM, Kyeong-hyeon KIM, Kyung-tae KIM, Myeong-jun KIM, Tae-gyun LEE, Joon-ho KIM