Patents by Inventor Seong-Deok Ahn

Seong-Deok Ahn 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: 20240325399
    Abstract: The present invention relates to a pharmaceutical composition comprising an adenosine derivative which can be usefully used for preventing or treating cholangitis or a liver disease caused by cholangitis, and the composition comprises a compound represented by Chemical Formula 1 or a pharmaceutically acceptable salt thereof and a pharmaceutically acceptable carrier.
    Type: Application
    Filed: January 25, 2022
    Publication date: October 3, 2024
    Applicant: FUTURE MEDICINE CO., LTD.
    Inventors: Hyuk Woo LEE, Sang Yeop AHN, Hyeon Deok CHO, Yoon Pyo CHOI, Seong Wook SEO
  • Publication number: 20120001159
    Abstract: Provided is an insulating layer in which an inorganic material is added to an organic polymer to thereby improve the insulating properties, an organic thin film transistor using the insulating layer, and a method of fabricating the organic thin film transistor. An insulating layer for an organic thin film transistor including a vinyl polymer and an inorganic material is provided. Here, a weight ratio of the vinyl polymer to the inorganic material may be in the range of 1:0.0001 to 1:0.5. Accordingly, it is possible to fabricate a thin film at low temperature and, further, to fabricate an insulating layer having a high-dielectric constant, not affecting other layers formed in the previous processes during the formation of the insulating layer.
    Type: Application
    Filed: September 15, 2011
    Publication date: January 5, 2012
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Gi Heon KIM, Sung Min YOON, Kyu Ha BAEK, In Kyu YOU, Seung Youl KANG, Seong Deok AHN, Kyung Soo SUH
  • Patent number: 8049953
    Abstract: Provided is a microcapsule patterning method for patterning electrophoretic microcapsules on a substrate, the method including the steps of: preparing a microcapsule slurry in which microcapsules and a water-soluble binder are mixed; putting the microcapsule slurry into a liquid ejector having injection and ejection ports formed therein; and applying the microcapsule slurry contained in the liquid ejector onto the substrate so as to pattern pixels using the microcapsules. Accordingly, specific patterns are formed without physical and chemical damage to the microcapsules. Therefore, the patterns can be used as pixels of flat panel displays. Further, through the patterning, it is possible to implement a color display device which does not exhibit performance degradation.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: November 1, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Chul Am Kim, Seung Youl Kang, Hey Jin Myoung, Kyung Soo Suh, Seong Deok Ahn, Gi Heon Kim, In Kyu You, Ji Young Oh
  • Patent number: 8047849
    Abstract: Provided are a braille display device using an electrorheological fluid and a method for manufacturing the same. The braille display device includes: a base body in which a plurality of insulating reception grooves are formed; a first electrode arranged below the base body; an electrorheological fluid received in the reception groove; a microcapsule having an electrophoresis particle which is dispersed in the electrorheological fluid; a second electrode arranged above the microcapsule; a braille pin installed above the second electrode; and a braille pin protection film arranged above the braille pin.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: November 1, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seong Deok Ahn, Seung Youl Kang, Chul Am Kim, Ji Young Oh, In Kyu You, Gi Heon Kim, Kyu Ha Baek, Kyung Soo Suh
  • Patent number: 8039294
    Abstract: Provided is an insulating layer in which an inorganic material is added to an organic polymer to thereby improve the insulating properties, an organic thin film transistor using the insulating layer, and a method of fabricating the organic thin film transistor. An insulating layer for an organic thin film transistor including a vinyl polymer and an inorganic material is provided. Here, a weight ratio of the vinyl polymer to the inorganic material may be in the range of 1:0.0001 to 1:0.5. Accordingly, it is possible to fabricate a thin film at low temperature and, further, to fabricate an insulating layer having a high-dielectric constant, not affecting other layers formed in the previous processes during the formation of the insulating layer.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: October 18, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Gi Heon Kim, Sung Min Yoon, Kyu Ha Baek, In Kyu You, Seung Youl Kang, Seong Deok Ahn, Kyung Soo Suh
  • Patent number: 7903321
    Abstract: Provided are a color electrophoretic display and a method of manufacturing the same. The color electrophoretic display includes: a plurality of lower electrodes arranged on a lower layer and disposed with a predetermined interval therebetween; a plurality of first to third photoresist chambers arranged on the plurality of lower electrodes; first to third electronic inks accommodated in the plurality of first to third photoresist chambers respectively, and discriminatively operating to an electric field to independently display red, green, and blue colors; and a plurality of upper electrodes disposed with a predetermined interval therebetween and facing the plurality of lower electrodes with the plurality of first to third photoresist chambers being held therebetween.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: March 8, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seong Deok Ahn, Seung Youl Kang, Chul Am Kim, In Kyu You, Gi Heon Kim, Ji Young Oh, Kyu Ha Baek, Kyung Soo Suh
  • Patent number: 7889419
    Abstract: An electrophoretic display and a method of manufacturing the electrophoretic display are provided. The electrophoretic display includes an lower electrode formed on an under layer, an lower electrode protection layer formed on the lower electrode, an insulating template formed on the lower electrode protection layer and having a plurality of holes of smaller size than the wavelength of visible rays region, a dielectric fluid filling the holes and having a color, a plurality of charged particles suspended in the dielectric fluid filling each of the plurality of holes having a color different from the color of the dielectric fluid, and an upper electrode formed on the insulating template in sequential order. Accordingly, a problem of agglomeration of the charged particles can be solved by the insulating template having holes of smaller size than the wavelength of visible rays region, and thus a reliable electrophoretic display emitting light of one color or natural colors is achieved.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: February 15, 2011
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seong Deok Ahn, Kyung Soo Suh, Seung Youl Kang, Yong Eui Lee, Chul Am Kim, Meyoung Ju Joung, Mi Kyung Kim, Gun Hong Lee
  • Publication number: 20100300360
    Abstract: Provided is a method for depositing an organic/inorganic thin film. The method includes: i) heating a source vessel containing an organic material and an inorganic material; ii) transferring a deposition gas to a process chamber; iii) distributing the deposition gas onto a substrate disposed in the process chamber; iv) purging the process chamber; v) heating an activating agent source vessel; vi) transferring a heat initiator gas phase to the process chamber; vii) distributing the heat initiator gas phase onto the organic or inorganic material monomer deposited on the substrate through the process chamber, and forming an organic/inorganic thin film; and viii) exhausting the heat initiator gas phase and purging the process chamber. Depositing the organic/inorganic thin film in a time-division manner, the thickness of the thin film can be accurately adjusted and the deposition can be uniformly performed when the thin film is deposited on a large-scale substrate.
    Type: Application
    Filed: August 13, 2010
    Publication date: December 2, 2010
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seong Deok AHN, Seung Youl KANG, Chul Am KIM, Ji Young OH, In Kyu YOU, Gi Heon KIM, Kyu Ha BAEK, Kyung Soo SUH
  • Patent number: 7799377
    Abstract: Provided is a method for depositing an organic/inorganic thin film. The method includes: i) heating a source vessel containing an organic material and an inorganic material; ii) transferring a deposition gas to a process chamber; iii) distributing the deposition gas onto a substrate disposed in the process chamber; iv) purging the process chamber; v) heating an activating agent source vessel; vi) transferring a heat initiator gas phase to the process chamber; vii) distributing the heat initiator gas phase onto the organic or inorganic material monomer deposited on the substrate through the process chamber, and forming an organic/inorganic thin film; and viii) exhausting the heat initiator gas phase and purging the process chamber. Depositing the organic/inorganic thin film in a time-division manner, the thickness of the thin film can be accurately adjusted and the deposition can be uniformly performed when the thin film is deposited on a large-scale substrate.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: September 21, 2010
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seong Deok Ahn, Seung Youl Kang, Chul Am Kim, Ji Young Oh, In Kyu You, Gi Heon Kim, Kyu Ha Baek, Kyung Soo Suh
  • Patent number: 7672037
    Abstract: Provided are an electrophoretic display device and a manufacturing method thereof, and more specifically, electrophoretic e-paper to which a high-k dielectric material is applied in order to improve a reaction rate. The electrophoretic display device of the present invention comprises a plurality of capsules comprising a dielectric fluid and at least one type of particles individually operating in response to an applied electric field and suspended in the dielectric fluid; first and second substrates respectively formed on and below the capsules and having electrodes formed thereon; and a dielectric layer formed on at least one of the first and second substrates to be in contact with the capsules.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: March 2, 2010
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: In Kyu You, Seung Youl Kang, Chul Am Kim, Seong Deok Ahn, Gi Heon Kim, Ji Young Oh, Kyung Soo Suh
  • Patent number: 7651739
    Abstract: A surface treatment method of an FRP substrate is provided. According to the method, an FRP substrate that is less deformed than a conventional flexible substrate material is used, and surface roughness, which is a drawback of the FRP substrate, is improved so that it may be applied to the fabrication of a device. In order to reduce the surface roughness of an FRP substrate, the FRP substrate is coated with an organic insulating solution and thereby planarized. Due to the reduced deformation and superior flatness, failures occurring due to misalignment in a photolithography process may be prevented.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: January 26, 2010
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: In Kyu You, Seung Youl Kang, Seong Deok Ahn, Gi Heon Kim, Ji Young Oh, Chul Am Kim, Kyu Ha Baek, Kyung Soo Suh
  • Publication number: 20090269703
    Abstract: Provided are a color electrophoretic display and a method of manufacturing the same. The color electrophoretic display includes: a plurality of lower electrodes arranged on a lower layer and disposed with a predetermined interval therebetween; a plurality of first to third photoresist chambers arranged on the plurality of lower electrodes; first to third electronic inks accommodated in the plurality of first to third photoresist chambers respectively, and discriminatively operating to an electric field to independently display red, green, and blue colors; and a plurality of upper electrodes disposed with a predetermined interval therebetween and facing the plurality of lower electrodes with the plurality of first to third photoresist chambers being held therebetween.
    Type: Application
    Filed: July 1, 2009
    Publication date: October 29, 2009
    Inventors: Seong Deok Ahn, Seung Youl Kang, Chul Am Kim, In Kyu You, Gi Heon Kim, Ji Young Oh, Kyu Ha Baek, Kyung Soo Suh
  • Patent number: 7586119
    Abstract: Provided are a low temperature-cured polymer gate insulation layer and an organic thin film transistor having the same. The gate insulation layer includes an acrylate-based compound, an anhydride-based compound, and an epoxy-based compound each by 0.1 weight % or more.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: September 8, 2009
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Gi Heon Kim, Sung Min Yoon, In Kyu You, Seung Youl Kang, Seong Deok Ahn, Kyu Ha Baek, Kyung Soo Suh
  • Publication number: 20090188530
    Abstract: Provided is a method of cleaning a flexible substrate. The method includes the steps of: preparing a flexible substrate and detaching an impurity adhered to both surfaces of the flexible substrate using rotating first rollers disposed on the both surfaces of the flexible substrate; and removing the impurity by transferring the impurity from the first roller to a second roller using the rotating second roller having a relatively higher adhesion than the first roller.
    Type: Application
    Filed: April 6, 2009
    Publication date: July 30, 2009
    Inventors: Gi Heon KIM, Kyung Soo SUH, Kyu Ha BAEK, In Kyu YOU, Seung Youl KANG, Seong Deok AHN, Chul Am KIM
  • Patent number: 7564615
    Abstract: Provided are a color electrophoretic display and a method of manufacturing the same. The color electrophoretic display includes: a plurality of lower electrodes arranged on a lower layer and disposed with a predetermined interval therebetween; a plurality of first to third photoresist chambers arranged on the plurality of lower electrodes; first to third electronic inks accommodated in the plurality of first to third photoresist chambers respectively, and discriminatively operating to an electric field to independently display red, green, and blue colors; and a plurality of upper electrodes disposed with a predetermined interval therebetween and facing the plurality of lower electrodes with the plurality of first to third photoresist chambers being held therebetween.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: July 21, 2009
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seong Deok Ahn, Seung Youl Kang, Chul Am Kim, In Kyu You, Gi Heon Kim, Ji Young Oh, Kyu Ha Baek, Kyung Soo Suh
  • Patent number: 7534302
    Abstract: Provided is a method of cleaning a flexible substrate. The method includes the steps of: preparing a flexible substrate and detaching an impurity adhered to both surfaces of the flexible substrate using rotating first rollers disposed on the both surfaces of the flexible substrate; and removing the impurity by transferring the impurity from the first roller to a second roller using the rotating second roller having a relatively higher adhesion than the first roller.
    Type: Grant
    Filed: November 26, 2007
    Date of Patent: May 19, 2009
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Gi Heon Kim, Kyung Soo Suh, Kyu Ha Baek, In Kyu You, Seung Youl Kang, Seong Deok Ahn, Chul Am Kim
  • Patent number: 7482625
    Abstract: Provided are a composition for thermosetting organic polymeric gate insulating layer and an organic thin film transistor using the same. The composition for thermosetting organic polymeric gate insulating layer contains a thermosetting material in polyvinyl phenol as an organic polymeric gate insulating layer material, to improve a chemical resistance and an insulating property, and an organic thin film transistor includes a thermosetting organic polymeric gate insulating layer formed of the composition. The composition for thermosetting organic polymeric gate insulating layer endows an organic polymer with a thermosetting property, thereby being capable of improving the chemical resistance and the insulating property as well as of forming a layer having a device property improved.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: January 27, 2009
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Gi Heon Kim, Sung Min Yoon, In Kyu You, Seung Youl Kang, Seong Deok Ahn, Kyu Ha Baek, Kyung Soo Suh
  • Publication number: 20080223509
    Abstract: An adhesive film and a method of fabricating a flexible display using the same are provided. The adhesive film includes: a support including a first surface disposed opposite to a flexible substrate for forming an image display element and a second surface disposed opposite to a support substrate for supporting the flexible substrate; a first adhesive material applied on the first surface of the support; and a second adhesive material applied on the second surface of the support and having a greater adhesive strength than the first adhesive material. The flexible substrate can be easily detached from the support substrate, so that the flexible display can be realized in various sizes and thicknesses using existing equipment without modification of mass-production equipment for realizing the flexible display.
    Type: Application
    Filed: May 30, 2008
    Publication date: September 18, 2008
    Inventors: Gi Heon KIM, Yong Hae KIM, In Kyu YOU, Kyu Ha BAEK, Seung Youl KANG, Seong Deok AHN, Kyung Soo SUH
  • Publication number: 20080138774
    Abstract: Provided are a braille display device using an electrorheological fluid and a method for manufacturing the same. The braille display device includes: a base body in which a plurality of insulating reception grooves are formed; a first electrode arranged below the base body; an electrorheological fluid received in the reception groove; a microcapsule having an electrophoresis particle which is dispersed in the electrorheological fluid; a second electrode arranged above the microcapsule; a braille pin installed above the second electrode; and a braille pin protection film arranged above the braille pin.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 12, 2008
    Inventors: Seong Deok Ahn, Seung Youl Kang, Chul Am Kim, Ji Young Oh, In Kyu You, Gi Heon Kim, Kyu Ha Baek, Kyung Soo Suh
  • Publication number: 20080138517
    Abstract: Provided are a device for depositing an organic/inorganic thin film and a deposition method thereof.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 12, 2008
    Inventors: Seong Deok AHN, Seung Youl KANG, Chul Am KIM, Ji Young OH, In Kyu YOU, Gi Heon KIM, Kyu Ha BAEK, Kyung Soo SUH