Patents by Inventor Jin Ho Ahn

Jin Ho 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: 20140154761
    Abstract: A method of biologically producing an aromatic carboxylic acid by contacting a substrate containing an aromatic carboxylic acid having a para-hydroxy group with a biocatalyst that removes the para-hydroxy group.
    Type: Application
    Filed: November 27, 2013
    Publication date: June 5, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Won Jae CHOI, Jin Ho AHN, Jong Won BYUN, Young Wan HA
  • Publication number: 20140051140
    Abstract: A method of biologically producing p-hydroxybenzoic acid, and a method for producing p-hydroxybenzoic acid from lignin through chemical and biological conversion.
    Type: Application
    Filed: August 14, 2013
    Publication date: February 20, 2014
    Inventors: Won Jae CHOI, Jong Won BYUN, Jin Ho AHN, Young Wan HA, Joo-Hyun SEO
  • Publication number: 20130115434
    Abstract: A manufacturing method of a photonic crystal is provided. In the method, a high-refractive-index material is conformally deposited on an exposed portion of a periodic template composed of a low-refractive-index material by an atomic layer deposition process so that a difference in refractive indices or dielectric constants between the template and adjacent air becomes greater, which makes it possible to form a three-dimensional photonic crystal having a superior photonic bandgap. Herein, the three-dimensional structure may be prepared by a layer-by-layer method.
    Type: Application
    Filed: December 26, 2012
    Publication date: May 9, 2013
    Applicants: Iowa State University Research Foundation, Inc.
    Inventors: Rana Biswas, Kristen Constant, Kai-Ming Ho, Jae-Hwang Lee, In Sung Park, Tae l lo Lee, Jin Ho Ahn
  • Patent number: 8377700
    Abstract: Systems and methods related to compositions including hydrogels and photoluminescent nanostructures are described. The compositions can undergo a change in a physical, chemical, dielectric, or other property upon exposure to an altering stimulus. Changes in one or more properties of the hydrogel may impart a change in the photoluminescence of the nanostructures embedded in the hydrogel.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: February 19, 2013
    Assignee: Massachusetts Institute of Technology
    Inventors: Michael S. Strano, Paul W. Barone, Jin-Ho Ahn, Ardemis Anoush Boghossian, Rene Ortiz-Garcia, Hyeonseok Yoon, Jingqing Zhang
  • Publication number: 20130035567
    Abstract: A composition for sensing an analyte can include a photoluminescent nanostructure complexed to a sensing polymer, where the sensing polymer includes an organic polymer non-covalently bound to the photoluminescent nanostructure and an analyte-binding protein covalently bound to the organic polymer, and where the analyte-binding protein is capable of selectively binding the analyte, and the analyte-binding protein undergoes a substantial conformational change when binding the analyte. Separately, a composition for sensing an analyte, can include a complex, where the complex includes a photoluminescent nanostructure in an aqueous surfactant dispersion and a boronic acid capable of selectively reacting with an analyte. The compositions can be used in devices and methods for sensing an analyte.
    Type: Application
    Filed: July 31, 2012
    Publication date: February 7, 2013
    Inventors: Michael S. Strano, Paul W. Barone, Jin-Ho Ahn, Kyungsuk Yum, Thomas P. McNicholas
  • Patent number: 8361545
    Abstract: A manufacturing method of a photonic crystal is provided. In the method, a high-refractive-index material is conformally deposited on an exposed portion of a periodic template composed of a low-refractive-index material by an atomic layer deposition process so that a difference in refractive indices or dielectric constants between the template and adjacent air becomes greater, which makes it possible to form a three-dimensional photonic crystal having a superior photonic bandgap. Herein, the three-dimensional structure may be prepared by a layer-by-layer method.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: January 29, 2013
    Assignees: IUCF-HYU Industry-University Cooperation Foundation, Hanyang University, Iowa State University Research Foundation, Inc.
    Inventors: In Sung Park, Tae Ho Lee, Jin Ho Ahn, Rana Biswas, Kristen P. Constant, Kai-Ming Ho, Jae-Hwang Lee
  • Publication number: 20120178640
    Abstract: A composition can include a nanostructure, and a linker associated with the nanostructure, wherein the linker is configured to interact with a capture protein. The nanostructure can include a single-walled carbon nanotube. A plurality of the compositions can be configured in an array.
    Type: Application
    Filed: August 31, 2011
    Publication date: July 12, 2012
    Applicant: Massachusetts Institute of Technology
    Inventors: Michael S. Strano, Jin-Ho Ahn, Jong-Ho Kim, Paul W. Barone, Nigel F. Reuel
  • Publication number: 20090169735
    Abstract: A manufacturing method of a photonic crystal is provided. In the method, a high-refractive-index material is conformally deposited on an exposed portion of a periodic template composed of a low-refractive-index material by an atomic layer deposition process so that a difference in refractive indices or dielectric constants between the template and adjacent air becomes greater, which makes it possible to form a three-dimensional photonic crystal having a superior photonic bandgap. Herein, the three-dimensional structure may be prepared by a layer-by-layer method.
    Type: Application
    Filed: June 1, 2006
    Publication date: July 2, 2009
    Inventors: In Sung Park, Tae Ho Lee, Jin Ho Ahn
  • Patent number: 7507505
    Abstract: The present invention relates to a method for manufacturing a reflective multi-layered thin film mirror for an extreme ultraviolet radiation (EUV) exposure process that is one of the next generation exposure process masks using an atomic force microscope (AFM). This reflective multi-layered thin film mirror for extreme ultraviolet radiation (EUV) exposure process allows metal oxide structures with fixed height and ' width to be obtained using anodic oxidization phenomenon between the cantilever tip of a atomic force microscope and an absorber material during the patterning of an absorber layer on a multi-layered thin film of a substrate, followed by forming the ultra-fine line width absorber patterns via etching of the metal oxide structure.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: March 24, 2009
    Assignee: IUFC-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Hai Won Lee, Sun Woo Lee, Jin ho Ahn, Suk Jong Bae
  • Publication number: 20080153128
    Abstract: The present invention relates to a method for synthesizing a protein in a cell-free synthesis system, which comprises the steps of: (a) amplifying a DNA molecule encoding the protein to prepare linear DNA molecules with a stem and loop sequence at their terminus, wherein the stem and loop sequence comprises a nucleotide sequence inducing the formation of a stem and loop structure at the 3?-end of transcripts of the amplified DNA molecules to prevent degradation of the transcripts; and (b) contacting the amplified DNA molecules to a lysate of cells with deficient endoribonuclease E activity, thereby producing the protein in the cell-free synthesis system.
    Type: Application
    Filed: October 23, 2007
    Publication date: June 26, 2008
    Applicant: ISU ABXIS CO., LTD.
    Inventors: Dong-Myung Kim, Jin-Ho Ahn, Cha-Yong Choi
  • Patent number: 7327685
    Abstract: An apparatus is invented for implementing adaptive routing in packet switched networks. The hardware structure of the apparatus is based on the AntNet, which is an adaptive routing algorithm for selecting an optimized network route using a mobile agent that simulates an ant. The AntNet-based hardware structure can be applied to a system-on-chip system. The original AntNet algorithm is adapted for hardware implementation. Performance of the modified algorithm of the invention was verified by comparing the modified algorithm with the original AntNet algorithm in a virtual network structure. The hardware structure of the invention is effective for AntNet-based routing.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: February 5, 2008
    Assignee: Industry-Academic Cooperation Foundation, Yoosei University
    Inventors: Jin-Ho Ahn, Sung-Il Bae, Young-Yong Kim, Sung-Ho Kang
  • Publication number: 20060056302
    Abstract: An apparatus is invented for implementing adaptive routing in packet switched networks. The hardware structure of the apparatus is based on the AntNet, which is an adaptive routing algorithm for selecting an optimized network route using a mobile agent that simulates an ant. The AntNet-based hardware structure can be applied to a system-on-chip system. The original AntNet algorithm is adapted for hardware implementation. Performance of the modified algorithm of the invention was verified by comparing the modified algorithm with the original AntNet algorithm in a virtual network structure. The hardware structure of the invention is effective for AntNet-based routing.
    Type: Application
    Filed: September 10, 2004
    Publication date: March 16, 2006
    Inventors: Jin-Ho Ahn, Sung-II Bae, Young-Young Kim, Sung-Ho Kang
  • Patent number: 6542201
    Abstract: An image zooming apparatus and method for zooming a specific portion of an image in a vertical direction for a digital TV is disclosed. The present apparatus includes a line memory unit for storing the input images; an input data controller for storing the input data in the line memory unit according to a type of the input image and zoom magnification; a zoom controller for receiving zoom area information and zoom magnification from a user, and controlling the data storage in the line memory unit and the processing of the stored data; and data processor for providing a zoomed image according to the control of the zoom controller. The present invention allows a user to zoom an image area of interest and re-zoom a zoomed image area of interest, thereby providing a user-friendly device.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: April 1, 2003
    Assignee: LG Electronics Inc.
    Inventors: Seung Chul Song, Jin Ho Ahn
  • Patent number: 6501508
    Abstract: A vertical video format converter is disclosed including a memory unit which consists of a plurality of line memories to store input video data in one of the line memories, a filter for multiplying video data items respectively output from line memories by coefficients input into corresponding video data item positions and adding the multiplied data items to output filtered data. In the present invention, the position of the filter center value is not fixed, but can be located arbitrarily and the filter coefficients need not be symmetrical. Moreover, an interpolation may be performed by one-time filtering, resulting in faster data processing.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: December 31, 2002
    Assignee: LG Electronics, Inc.
    Inventors: Seung Chul Song, Dong Il Han, Jin Ho Ahn