Patents by Inventor Hojin Choi

Hojin Choi 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: 20230221058
    Abstract: A refrigerator includes a cabinet defining a storage space and a door configured to open and close the storage space. The door includes comprises: a panel assembly comprising a front panel, a door frame connected to the panel assembly, a door liner defining, with the door frame, an insulating space that accommodates an insulator, and a basket installed on the door liner. The door liner includes: an outer body, a liner extension portion extending from the outer body in a direction crossing the outer body, and a plurality of ribs that are disposed at the outer body and that are spaced apart from the liner extension portion. The door frame comprises a frame extension portion that is disposed between the plurality of ribs and the liner extension portion.
    Type: Application
    Filed: March 21, 2023
    Publication date: July 13, 2023
    Inventors: Juyoung KIM, Daham BAE, Hojin CHOI, Hyuncheol LEE, Jongmoon JANG
  • Patent number: 11624549
    Abstract: A refrigerator includes a cabinet defining a storage space and a door configured to open and close the storage space. The door includes comprises: a panel assembly comprising a front panel, a door frame connected to the panel assembly, a door liner defining, with the door frame, an insulating space that accommodates an insulator, and a basket installed on the door liner. The door liner includes: an outer body, a liner extension portion extending from the outer body in a direction crossing the outer body, and a plurality of ribs that are disposed at the outer body and that are spaced apart from the liner extension portion. The door frame comprises a frame extension portion that is disposed between the plurality of ribs and the liner extension portion.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: April 11, 2023
    Assignee: LG Electionics Inc.
    Inventors: Juyoung Kim, Daham Bae, Hojin Choi, Hyuncheol Lee, Jongmoon Jang
  • Publication number: 20230091861
    Abstract: A silicone hybrid pressure sensitive adhesive composition that cures to form a silicone hybrid pressure sensitive adhesive contains a polydiorganosiloxane having reactive groups. The reactive groups include a silicon bonded (meth)acryloxyalkyl-functional group in a pendant position and optionally a silicon bonded aliphatically unsaturated hydrocarbon group in a terminal position. The silicone hybrid pressure sensitive adhesive composition can be cured via hydrosilylation reaction on a surface of a substrate to form a protective film. The protective film can be used to protect a passivation layer during a process for fabricating an (opto)electronic device such as a flexible organic light emitting diode display. The protective film can be exposed to radiation to reduce tack and facilitate detaching the protective film from the passivation layer.
    Type: Application
    Filed: March 1, 2021
    Publication date: March 23, 2023
    Inventors: Juyoung Yook, Nanguo Liu, Zachary Wenzlick, Hojin Choi, Bo Kyung Bona Kim
  • Publication number: 20230069935
    Abstract: In a method of responding based on sentence paraphrase recognition for dialog system, main keywords of a domain and patterns thereof are recognized and extracted based on a morpheme analysis result in a pre-processing process. Question domains/sub-categories/dialogue-acts are classified using the morpheme analysis result and the extracted main keywords and patterns. Learning a model is performed using classification features of the classified question domains, sub-categories, and dialogue-acts as semantic features of query sentences, and sentence semantic vectors are extracted by measuring similarity between the vectors. A language model of letters is trained and similarity in expression and structure is analyzed by extracting a sentence expression vector based on the letter.
    Type: Application
    Filed: November 20, 2019
    Publication date: March 9, 2023
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Hojin CHOI, Kyojoong OH, Youngjun LEE, Soohwan PARK
  • Publication number: 20230058849
    Abstract: A refrigerator is proposed. The refrigerator includes a refrigerating compartment, a freezing compartment, and an ice-making compartment. The refrigerating compartment is configured to receive cool air from a refrigerating compartment side grill fan assembly, and the ice-making compartment is configured to be located in any one refrigerating compartment door and to receive cool air from a freezing compartment side grill fan assembly with the freezing compartment. The refrigerating compartment side grill fan assembly is configured to supply a greater amount of cool air to a space at a refrigerating compartment door without the ice-making compartment than the amount of cool air supplied to other spaces, and the freezing compartment side grill fan assembly is configured to supply a greater amount of cool air to a space communicating with a recovery duct for the ice-making compartment than the amount of cool air supplied to other spaces.
    Type: Application
    Filed: January 25, 2021
    Publication date: February 23, 2023
    Inventors: Kihwang KIM, Sunghee KANG, Sangho JUNG, Hojin CHOI, Dong Hwi KIM
  • Publication number: 20230029759
    Abstract: A method of classifying emotions of utterances in a dialogue using word-level emotion embedding based on semi-supervised learning and a long short-term memory (LSTM) model includes embedding word-level emotion by tagging an emotion for each of words in utterances of input dialogue data with reference to a word-emotion association lexicon in which basic emotions are tagged for words for learning; extracting an emotion value of the utterances input; and classifying emotions of the utterances in consideration of change of emotion in the dialogue made in a messenger client, based on the LSTM model, using extracted emotion values of the utterances as input values of the LSTM model. The present invention can appropriately classify emotions by recognizing a change in emotion in a dialogue made in natural language.
    Type: Application
    Filed: February 12, 2020
    Publication date: February 2, 2023
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hojin CHOI, Youngjun LEE
  • Publication number: 20220003489
    Abstract: A refrigerator includes a cabinet defining a storage space and a door configured to open and close the storage space. The door includes comprises: a panel assembly comprising a front panel, a door frame connected to the panel assembly, a door liner defining, with the door frame, an insulating space that accommodates an insulator, and a basket installed on the door liner. The door liner includes: an outer body, a liner extension portion extending from the outer body in a direction crossing the outer body, and a plurality of ribs that are disposed at the outer body and that are spaced apart from the liner extension portion. The door frame comprises a frame extension portion that is disposed between the plurality of ribs and the liner extension portion.
    Type: Application
    Filed: July 6, 2021
    Publication date: January 6, 2022
    Inventors: Juyoung KIM, Daham BAE, Hojin CHOI, Hyuncheol LEE, Jongmoon JANG
  • Patent number: 10907872
    Abstract: A refrigerator includes a first compressor configured to compress a first refrigerant, a first condenser configured to return the first refrigerant to the first compressor during a freezing cycle, a second compressor configured to compress a second refrigerant, and a second condenser configured to return the second refrigerant to the second compressor during a refrigerating cycle. The refrigerator includes a controller configured to control a radiating fan for the first condenser and the second condenser based on an operation state of the first compressor and the second compressor, and a refrigerant loop channel configured to allow the first refrigerant passing through a refrigerant channel that is located between a body and a door of the refrigerator. The refrigerant channel is coupled to the first condenser, and, for a predetermined time interval, an average operation time of the freezing cycle is longer than an average operation time of the refrigerating cycle.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: February 2, 2021
    Assignee: LG Electronics Inc.
    Inventor: Hojin Choi
  • Patent number: 10618255
    Abstract: A flexible laminate for which increased flexibility and improved durability can coexist, and a flexible display provided with same, are disclosed. The flexible laminate has at least one unit of a laminated structure in which two hard layers closely adhere to each other with at least one intermediate layer therebetween. When the flexible laminate is bent, neutral planes are formed inside each of the hard layers that closely adhere to each other with the intermediate layer therebetween. The flexible laminate satisfies the following expression: a×ln(tan ?×ET/0.01)?100. In the expression, a is any value ranging from 200 to 2,000, tan ? represents a loss factor for a substance configuring the intermediate layer, and ET represents an elastic modulus (MPa) of the substance configuring the intermediate layer.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: April 14, 2020
    Assignees: Dow Toray Co., Ltd., Dow Silicones Corporation
    Inventors: Hojin Choi, Haruhiko Furukawa, Maki Itoh, Jeonggi Kim, Sunny Kim, Haruna Mizuno, Michitaka Suto, Takeaki Tsuda
  • Patent number: 10288341
    Abstract: A refrigerator including a main body including a storage compartment defined therein, a cooling device for cooling the storage compartment, a door for opening and closing the storage compartment, a gasket disposed between the door and the main body to seal the storage compartment, and a heat source disposed around the door, wherein the heat source includes a plurality of heaters generating different quantities of heat.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: May 14, 2019
    Assignee: LG Electronics Inc.
    Inventors: Sunam Chae, Hojin Choi, Kangsoo Byun
  • Publication number: 20190134946
    Abstract: A flexible laminate for which increased flexibility and improved durability can coexist, and a flexible display provided with same, are disclosed. The flexible laminate has at least one unit of a laminated structure in which two hard layers closely adhere to each other with at least one intermediate layer therebetween. When the flexible laminate is bent, neutral planes are formed inside each of the hard layers that closely adhere to each other with the intermediate layer therebetween. The flexible laminate satisfies the following expression: a×In (tan ?×ET/0.01)?100. In the expression, a is any value ranging from 200 to 2,000, tan ? represents a loss factor for a substance configuring the intermediate layer, and ET represents an elastic modulus (MPa) of the substance configuring the intermediate layer.
    Type: Application
    Filed: April 26, 2017
    Publication date: May 9, 2019
    Inventors: Hojin CHOI, Haruhiko FURUKAWA, Maki ITOH, Jeonggi KIM, Sunny KIM, Haruna MIZUNO, Michitaka SUTO, Takeaki TSUDA
  • Publication number: 20180187947
    Abstract: A refrigerator including a main body including a storage compartment defined therein, a cooling device for cooling the storage compartment, a door for opening and closing the storage compartment, a gasket disposed between the door and the main body to seal the storage compartment, and a heat source disposed around the door, wherein the heat source includes a plurality of heaters generating different quantities of heat.
    Type: Application
    Filed: April 17, 2015
    Publication date: July 5, 2018
    Inventors: Sunam CHAE, Hojin CHOI, Kangsoo BYUN
  • Patent number: 9878986
    Abstract: Provided are urea derivatives of Formula I: with histone deacetylase (HDAC) inhibitory activity, optical isomers thereof, pharmaceutically acceptable salts thereof and pharmaceutical compositions comprising the same. The provided urea derivatives of Formula I are selective histone deacetylase (HDAC) inhibitors and are effective for the treatment of histone deacetylase-mediated diseases such as malignant tumors, inflammatory diseases, rheumatoid arthritis, and neurodegeneration.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: January 30, 2018
    Assignee: Chong Kun Dang Pharmaceutical Corp.
    Inventors: Changsik Lee, Hyun-Mo Yang, Hojin Choi, Dohoon Kim, Soyoung Kim, Nina Ha, Hyojin Lim, Eunhee Ko, Seongae Yoon, Daekwon Bae
  • Publication number: 20170152230
    Abstract: The present invention relates to novel urea derivatives and, more particularly, to novel urea derivatives with histone deacetylase (HDAC) inhibitory activity, isomers thereof, pharmaceutically acceptable salts thereof, their use for the preparation of a medicaments comprising the same, a pharmaceutical composition comprising the same, a treatment method using the composition, and a method for preparing novel urea derivatives. The novel urea derivatives as selective histone deacetylase (HDAC) inhibitors are effective for the treatment of histone deacetylase-mediated diseases such as malignant tumors, inflammatory diseases, rheumatoid arthritis, neurodegeneration, etc.
    Type: Application
    Filed: April 29, 2014
    Publication date: June 1, 2017
    Inventors: Changsik LEE, Hyun-Mo YANG, Hojin CHOI, Dohoon KIM, Soyoung KIM, Nina HA, Hyojin LIM, Eunhee KO, Seongae YOON, Daekwon BAE
  • Patent number: 9447083
    Abstract: The present invention relates to novel N-acylhydrazone derivatives, and more particularly to novel N-acylhydrazone derivatives having selective T cell inhibitory activity and/or anti-lymphoid malignancy activity, stereoisomers thereof, pharmaceutically acceptable salts thereof, the use thereof for preparing pharmaceutical compositions, pharmaceutical compositions containing the same, treatment methods using the compositions, and methods for preparing the novel N-acylhydrazone derivatives.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: September 20, 2016
    Assignees: CHONG KUN DANG PHARMACEUTICAL CORP., INJE UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: HoJin Choi, JaeWon Lee, ChangGon Lee, NiNa Ha, Su Kil Seo, SunMi Lee, Song-Min Lee
  • Publication number: 20160178245
    Abstract: A refrigerator includes a first compressor configured to compress a first refrigerant, a first condenser configured to return the first refrigerant to the first compressor during a freezing cycle, a second compressor configured to compress a second refrigerant, and a second condenser configured to return the second refrigerant to the second compressor during a refrigerating cycle. The refrigerator includes a controller configured to control a radiating fan for the first condenser and the second condenser based on an operation state of the first compressor and the second compressor, and a refrigerant loop channel configured to allow the first refrigerant passing through a refrigerant channel that is located between a body and a door of the refrigerator. The refrigerant channel is coupled to the first condenser, and, for a predetermined time interval, an average operation time of the freezing cycle is longer than an average operation time of the refrigerating cycle.
    Type: Application
    Filed: December 22, 2015
    Publication date: June 23, 2016
    Inventor: Hojin CHOI
  • Publication number: 20160083354
    Abstract: The present invention relates to novel urea derivatives and, more particularly, to novel urea derivatives with histone deacetylase (HDAC) inhibitory activity, isomers thereof, pharmaceutically acceptable salts thereof, their use for the preparation of a medicaments comprising the same, a pharmaceutical composition comprising the same, a treatment method using the composition, and a method for preparing novel urea derivatives. The novel urea derivatives as selective histone deacetylase (HDAC) inhibitors are effective for the treatment of histone deacetylase-mediated diseases such as malignant tumors, inflammatory diseases, rheumatoid arthritis, neurodegeneration, etc.
    Type: Application
    Filed: April 29, 2014
    Publication date: March 24, 2016
    Inventors: Changsik LEE, Hyun-Mo YANG, Hojin CHOI, Dohoon KIM, Soyoung KIM, Nina HA, Hyojin LIM, Eunhee KO, Seongae YOON, Daekwon BAE
  • Publication number: 20150252030
    Abstract: The present invention relates to novel N-acylhydrazone derivatives, and more particularly to novel N-acylhydrazone derivatives having selective T cell inhibitory activity and/or anti-lymphoid malignancy activity, stereoisomers thereof, pharmaceutically acceptable salts thereof, the use thereof for preparing pharmaceutical compositions, pharmaceutical compositions containing the same, treatment methods using the compositions, and methods for preparing the novel N-acylhydrazone derivatives.
    Type: Application
    Filed: August 29, 2013
    Publication date: September 10, 2015
    Applicants: CHONG KUN DANG PHARMACEUTICAL CORP., INJE UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: HoJin Choi, JaeWon Lee, ChangGon Lee, NiNa Ha, Su Kil Seo, SunMi Lee, Song-Min Lee
  • Patent number: 9080808
    Abstract: A refrigerator is provided. The refrigerator may include a refrigerator body having at least one storage compartment and an opening, and a main door for opening and closing the storage compartment, the main door also having an opening corresponding to a receiving compartment formed therein. A sub door may be provided to open and close the opening of the main door, and a gasket may be provided along an edge of a rear surface of the sub door to contact a front surface of the main door and seal an interior of the main door when the sub door is closed. A heat transfer member may extend from the inside of a side to the inside of a front surface of the main door.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: July 14, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Hojin Choi, Seokhoon Kang, Seongjin Kim, Youngnam Kim, Sanghu Park
  • Publication number: 20140315889
    Abstract: The present invention relates to a novel hydroxamate derivatives, more specifically, to novel hydroxamate derivatives having inhibitory activity against Histone Deacetylase (HDAC), isomers thereof, pharmaceutically acceptable salts thereof, hydrates or solvates thereof, use for preparing pharmaceutical compositions, pharmaceutical compositions comprising the same, treatment method using said composition, and a preparing method of novel hydroxamate derivatives. The novel selective hydroxamate derivatives having inhibitory activity against Histone Deacetylase (HDAC) compositions can be used for treatment of inflammatory disease, rheumatoid arthritis, or degenerative disease.
    Type: Application
    Filed: October 26, 2012
    Publication date: October 23, 2014
    Applicant: CHONG KUN DANG PHARMACEUTICAL CORP.
    Inventors: Yuntae Kim, Changsik Lee, Hyun-mo Yang, Hojin Choi, Jaeki Min, Soyoung Kim, Dal-Hyun Kim, Nina Ha, Jung-Min Kim, Hyojin Lim, Eunhee Ko