Patents by Inventor Eun Ju Park

Eun Ju 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).

  • Publication number: 20240146329
    Abstract: Disclosed is an interface circuit including a first parallel-to-serial conversion circuit suitable for converting inverted parallel data in a parallel-to-serial manner to generate first output data in a test mode; a second parallel-to-serial conversion circuit suitable for converting non-inverted parallel data in the parallel-to-serial manner to generate second output data in the test mode; a third parallel-to-serial conversion circuit suitable for converting the non-inverted parallel data in the parallel-to-serial manner to generate third output data in the test mode; a fourth parallel-to-serial conversion circuit suitable for converting the inverted parallel data in the parallel-to-serial manner to generate fourth output data in the test mode; a first driver circuit suitable for receiving the first and second output data in the test mode; and a second driver circuit suitable for receiving the third and fourth output data in the test mode.
    Type: Application
    Filed: March 15, 2023
    Publication date: May 2, 2024
    Inventors: Eun Ju CHOE, Ho Young PARK, Jong Hwan CHOI
  • Patent number: 11963394
    Abstract: A display device includes: a substrate; a display element layer disposed on the substrate, where the display element layer includes a light emitting element which emits light; a polarizing film disposed on the display element layer, where the polarizing film includes a first polarizer having a first absorption axis extending to a first direction and a first transmission axis extending to a second direction orthogonal to the first direction; and a first layer disposed on one surface of the polarizing film, where the first layer has a first phase difference. Light emitted from the display element layer has a polarizing axis, and an angle between the polarizing axis and one of the first absorption axis and the first transmission axis is in a range of about 25 degrees to about 65 degrees.
    Type: Grant
    Filed: September 18, 2023
    Date of Patent: April 16, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee Young Lee, Eun Mi Seo, Gil Yeong Park, Min Ju Oh
  • Publication number: 20240116361
    Abstract: An electronic pedal apparatus includes a pad that rectilinearly moves and rotates along a pad guide while being kept in line contact with the pad guide including a shape of an arc when a driver operates the pad, an acceleration signal or a braking signal for a vehicle is generated by operation of the single pad, and a movement direction of the pad at the time of generating the acceleration signal is different from a movement direction of the pad at the time of generating the braking signal.
    Type: Application
    Filed: March 6, 2023
    Publication date: April 11, 2024
    Applicants: Hyundai Motor Company, Kia Corporation, Dong Hee Industrial Co, Ltd.
    Inventors: Eun Sik KIM, Wi Sang PARK, Jae Hyun CHO, Jung Min LEE, Seong Ju JO
  • Patent number: 11953930
    Abstract: An embodiment electronic pedal apparatus includes a pedal housing and an accelerator pedal assembly and a brake pedal assembly coupled to the pedal housing and configured to move along different movement trajectories when the accelerator pedal assembly and the brake pedal assembly are operated. In an embodiment, the accelerator pedal assembly is compressed and moved upward when the accelerator pedal assembly is operated, and the brake pedal assembly is compressed and moved downward when the brake pedal assembly is operated.
    Type: Grant
    Filed: October 20, 2022
    Date of Patent: April 9, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, DONG HEE INDUSTRIAL CO., LTD.
    Inventors: Eun Sik Kim, Wi Sang Park, Jae Hyun Cho, Jung Min Lee, Seong Ju Jo
  • Patent number: 11929498
    Abstract: A silicon-carbon complex comprising carbon-based particles and silicon-based particles, wherein the silicon-based particles are dispersed and positioned on surfaces of the carbon-based particles, the carbon-based particles have a specific surface area of 0.4 m2/g to 1.5 m2/g, and the silicon-based particles are doped with one or more elements selected from the group consisting of Mg, Li, Ca, and Al, and a negative electrode active material for lithium secondary battery comprising the same.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: March 12, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Su Min Lee, Eun Kyung Kim, Yong Ju Lee, Rae Hwan Jo, Dong Hyuk Kim, Se Mi Park
  • Publication number: 20230416468
    Abstract: There is provided a bioactive polyethylene copolymer with a poly(norbornene) backbone comprising one or more repeating units represented by general formula (I) and one or more repeating units represented by general formula (II). Also provided are a polyethylene macromolecule, a material comprising said bioactive polyethylene copolymer, a method of preparing said bioactive polyethylene copolymer and a method of preparing said polyethylene macromolecule.
    Type: Application
    Filed: October 30, 2020
    Publication date: December 28, 2023
    Inventors: Peili Teo, Haruyuki Makio, Jiayi Guo, Eun Ju Park, Yew Chin Teo
  • Publication number: 20230399457
    Abstract: There is provided a bioactive synthetic copolymer with a poly(norbornene) backbone comprising one or more repeating units represented by general formula (I) and one or more repeating units represented by general formula (II). Also provided are a bioactive macromolecule, a material comprising said bioactive synthetic copolymer, a method of preparing said bioactive synthetic copolymer and a method of preparing said bioactive macromolecule.
    Type: Application
    Filed: October 30, 2020
    Publication date: December 14, 2023
    Inventors: Peili Teo, Jiayi Guo, Yew Chin Teo, Eun Ju Park
  • Publication number: 20230209870
    Abstract: A display device according to an embodiment of the present disclosure can include a display panel configured to display an image, a polarizing plate over the display panel, a front member over the polarizing plate, and a protection member over the front member. The protection member can include at least two protection films and an adhesive layer disposed between the at least two protection films.
    Type: Application
    Filed: November 30, 2022
    Publication date: June 29, 2023
    Applicant: LG Display Co., Ltd.
    Inventor: Eun-Ju PARK
  • Publication number: 20230047729
    Abstract: Proposed is a novel method for preparing liraglutide by means of an ionic liquid and a eutectic solvent, which are environment-friendly solvents. More specifically, the method is characterized in that fractionated peptide 1 represented by the following formula (1) and fractionated peptide 2 represented by the following formula (2) are subjected to a coupling reaction in the presence of an ionic liquid or a eutectic solvent. In preparing GLP-1 analogues such as liraglutide, the present method increases reactivity when producing liraglutide, which is an unprocessed reactant, by using an ionic liquid and a eutectic solvent as environment-friendly solvents instead of using organic solvents. Accordingly, through a relatively short and simple purification process, the present method has advantages of reducing the formation of related substances, improving purity, improving yields, shortening reaction times, reducing production cost, and lowering the manufacturing cost.
    Type: Application
    Filed: October 11, 2022
    Publication date: February 16, 2023
    Inventors: Eun Ju PARK, Eun Teak KIM, Jin Oh PARK
  • Patent number: 11529317
    Abstract: There is provided a method of preparing silica nanocapsules, the method comprising mixing a surfactant with water at a temperature that is above the gel-to-liquid transition temperature of the surfactant to form a mixture, passing the mixture one or more times through at least one pore to obtain a dispersion of vesicles, and adding a silica precursor to the dispersion of vesicles to form silica nanocapsules. Also provided is a silica nanocapsule formed from a vesicle template, and a method of delivering one or more types of molecules to a subject. In a specific embodiment, hollow silica nanocapsules having substantially lens-shaped are synthesized by employing dimethyldioctadecylammonium bromide (DODAB) or dioctadecyldimethyl ammonium chloride (DODAC) as the vesicle template and tetraethyl orthosilicate (TEOS) as the silica precursor.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: December 20, 2022
    Assignee: Agency for Science, Technology and Research
    Inventors: Eun Ju Park, Alexander M. Van Herk, Praveen Thoniyot
  • Publication number: 20220387323
    Abstract: A solid dispersion of amorphous efinaconazole and a method for preparing the same are proposed. The solid dispersion includes an amorphous form of efinaconazole and at least one stabilization carrier selected from hydroxypropyl methylcellulose (HPMC), hydroxypropyl cellulose (HPC), ethyl cellulose (EC), hydroxypropyl methylcellulose acetate succinate (HPMC-AS), polyvinylpyrrolidone (PVP), polyacrylic acid (PAA), saccharin, and malonic acid. The solid dispersion undergoes minimal thermodynamic deformation when exposed to ambient temperature and humidity, achieving improved stability, while maintaining the inherent improved stability and bioavailability of amorphous efinaconazole.
    Type: Application
    Filed: September 25, 2020
    Publication date: December 8, 2022
    Inventors: Eun Ju PARK, Hyun JI, Ji Eun LEE, Jin Oh PARK
  • Publication number: 20220194919
    Abstract: The present invention relates to a co-crystalline form of efinaconazole and a pharmaceutically acceptable coformer forming a co-crystalline phase. The present invention also relates to a method for preparing the co-crystalline form. The co-crystallization product of efinaconazole according to the present invention meets all requirements for use as an active ingredient of a pharmaceutical composition and is highly stable to heat and other one or more other ingredients of the composition. Therefore, the co-crystallization product of efinaconazole is suitable for use in the preparation of pharmaceuticals. In addition, the method of the present invention enables the preparation of the co-crystallization product of efinaconazole in a simple and easy manner on a commercial scale.
    Type: Application
    Filed: September 25, 2020
    Publication date: June 23, 2022
    Inventors: Eun Ju PARK, Hyun JI, Eun Mi KIM, Jin Oh PARK
  • Publication number: 20220127245
    Abstract: The present invention relates to a novel method for preparing efinaconazole using an ionic liquid as a medium. The method includes subjecting 1-[[(2R,3S)-2-(2,4-difluorophenyl)-3-methyloxiranyl]methyl]-1H-1,2,4-triazole to a coupling reaction with 4-methylenepiperidine or an organic chemically acceptable salt thereof in the presence of a base and an ionic liquid compound. The base makes the 4-methylenepiperidine or organic chemically acceptable salt thereof anionic. The use of the ionic liquid in the method of the present invention prevents the formation of related substances, shortens the reaction time, and enables easy preparation of the final compound efinaconazole in high purity and yield on a large scale, compared to the use of organic solvents in conventional methods.
    Type: Application
    Filed: September 25, 2020
    Publication date: April 28, 2022
    Inventors: Eun Ju PARK, Hyun JI, Ji Eun LEE, Jin Oh PARK
  • Publication number: 20210100753
    Abstract: There is provided a method of preparing silica nanocapsules, the method comprising mixing a surfactant with water at a temperature that is above the gel-to-liquid transition temperature of the surfactant to form a mixture, passing the mixture one or more times through at least one pore to obtain a dispersion of vesicles, and adding a silica precursor to the dispersion of vesicles to form silica nanocapsules. Also provided is a silica nanocapsule formed from a vesicle template, and a method of delivering one or more types of molecules to a subject. In a specific embodiment, hollow silica nanocapsules having substantially lens-shaped are synthesized by employing dimethyldioctadecylammonium bromide (DODAB) or dioctadecyldimethyl ammonium chloride (DODAC) as the vesicle template and tetraethyl orthosilicate (TEOS) as the silica precursor.
    Type: Application
    Filed: March 28, 2018
    Publication date: April 8, 2021
    Inventors: Eun Ju PARK, Alexander M. VAN HERK, Praveen THONIYOT
  • Patent number: 10941249
    Abstract: The present invention relates to a method of preparing a polyphenylene sulfide and a high-viscosity polyphenylene sulfide prepared using the method. In this method, the ratio of an organic phase to an aqueous phase is controlled by controlling dehydration conditions, so that high viscosity may be realized without adversely affecting a reaction or physical properties during preparation of the polyphenylene sulfide.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: March 9, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Kwonsu Jung, Joong Jin Han, Eun Ju Park, Hyun Woog Ryu
  • Publication number: 20200181330
    Abstract: The present invention relates to a method of preparing a polyphenylene sulfide and a high-viscosity polyphenylene sulfide prepared using the method. In this method, the ratio of an organic phase to an aqueous phase is controlled by controlling dehydration conditions, so that high viscosity may be realized without adversely affecting a reaction or physical properties during preparation of the polyphenylene sulfide.
    Type: Application
    Filed: November 14, 2017
    Publication date: June 11, 2020
    Inventors: Kwonsu JUNG, Joon Jin HAN, Eun Ju PARK, Hyun Woog RYU
  • Patent number: 10604687
    Abstract: There is further provided a transparent adhesive composition including a silicon acrylate monomer; a silanol compound; an alkoxy silane compound; and an optical initiator.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: March 31, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Yeong Kim, Eun-Ju Park, Won-Bong Jang, Jun-Ha Hwang, Tae-Soo Jo
  • Patent number: 10418498
    Abstract: Disclosed are a single-source precursor for synthesizing metal chalcogenide nanoparticles for producing a light absorption layer of solar cells comprising a Group VI element linked as a ligand to any one metal selected from the group consisting of copper (Cu), zinc (Zn) and tin (Sn), metal chalcogenide nanoparticles produced by heat-treating at least one type of the single-source precursor, a method of preparing the same, a thin film produced using the same and a method of producing the thin film.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: September 17, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Eun Ju Park, Seokhee Yoon, Seokhyun Yoon, Hosub Lee
  • Publication number: 20190259889
    Abstract: Disclosed are a single-source precursor for synthesizing metal chalcogenide nanoparticles for producing a light absorption layer of solar cells comprising a Group VI element linked as a ligand to any one metal selected from the group consisting of copper (Cu), zinc (Zn) and tin (Sn), metal chalcogenide nanoparticles produced by heat-treating at least one type of the single-source precursor, a method of preparing the same, a thin film produced using the same and a method of producing the thin film.
    Type: Application
    Filed: April 29, 2019
    Publication date: August 22, 2019
    Inventors: Eun Ju Park, Seokhee Yoon, Seokhyun Yoon, Hosub Lee
  • Patent number: 10340402
    Abstract: Disclosed are a single-source precursor for synthesizing metal chalcogenide nanoparticles for producing a light absorption layer of solar cells comprising a Group VI element linked as a ligand to any one metal selected from the group consisting of copper (Cu), zinc (Zn) and tin (Sn), metal chalcogenide nanoparticles produced by heat-treating at least one type of the single-source precursor, a method of preparing the same, a thin film produced using the same and a method of producing the thin film.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: July 2, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Eun Ju Park, Seokhee Yoon, Seokhyun Yoon, Hosub Lee