Patents by Inventor Ji-Eun CHANG

Ji-Eun CHANG 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: 11413010
    Abstract: Provided are an ultrasound diagnosis apparatus and a method of operating the same, which are capable of providing a guide for improving quality of an ultrasound image according to a relative position between a transducer and an object. The ultrasound diagnosis apparatus includes: a probe configured to transmit ultrasound signals to an object and receive ultrasound echo signals reflected from the object; a display configured to display a state of contact between the object and the probe; and a processor configured to determine, based on the ultrasound echo signals, whether the probe is brought into contact with the object and the state of contact between the object and the probe, and to control the display to display an indicator indicating a result of the determining.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: August 16, 2022
    Assignee: SAMSUNG MEDISON CO., LTD.
    Inventors: Sung-wook Park, Jin-yong Lee, Ji-hyun Yoon, Sang-eun Lee, Hyuk-jae Chang, Namsik Chung, In-jeong Cho
  • Patent number: 11407983
    Abstract: A nucleic acid molecule comprising a variant rpoC coding sequence is disclosed. The variant rpoC coding sequence encodes a variant RpoC which regulates copy number of a plasmid. Also disclosed are a recombinant microorganism comprising the nucleic acid molecule, a method for regulating copy number of a subject vector in the recombinant microorganism, and a method for making a target product by use of the recombinant microorganism.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: August 9, 2022
    Assignee: CJ CHEILJEDANG CORPORATION
    Inventors: Ji Sun Lee, Dong Eun Chang, So Young Kim
  • Patent number: 8592677
    Abstract: A substrate includes a semiconductor layer, a plurality of dielectric layers disposed on one side of the semiconductor layer and separated from each other and a photoactive layer disposed between the dielectric layers and including a compound of a Group III element and a Group V element. Also disclosed are a solar cell including the same and a manufacturing method thereof.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: November 26, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Myoung Gyun Suh, Dong Ho Kim, Ji Eun Chang
  • Publication number: 20130298976
    Abstract: According to example embodiments, a solar cell includes a photovoltaic layer, a plurality of front electrodes, a rear electrode, and a transparent subsidiary electrode. The plurality of front electrodes and the rear electrode are disposed respectively on front and rear surfaces of the photovoltaic layer. The subsidiary electrode is disposed on front surfaces of the photovoltaic layer and the front electrodes. The subsidiary electrode may be graphene.
    Type: Application
    Filed: October 11, 2012
    Publication date: November 14, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-Eun CHANG, Myoung-Gyun SUH, Jin-Seong HEO
  • Publication number: 20120080084
    Abstract: A substrate includes a semiconductor layer, a plurality of dielectric layers disposed on one side of the semiconductor layer and separated from each other and a photoactive layer disposed between the dielectric layers and including a compound of a Group III element and a Group V element. Also disclosed are a solar cell including the same and a manufacturing method thereof.
    Type: Application
    Filed: February 25, 2011
    Publication date: April 5, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Myoung Gyun SUH, Dong Ho KIM, Ji Eun CHANG
  • Publication number: 20110271954
    Abstract: A solar concentrator comprises an incidence surface, a first reflective curved surface corresponding to the incidence surface, a second reflective curved surface disposed in a center part of the incidence surface, and a concentrating part disposed in a center part of the first reflective curved surface and corresponding to the second reflective curved surface, wherein the incidence surface, the first reflective curved surface, the second reflective curved surface, and the concentrator include a substantially same material from each other.
    Type: Application
    Filed: November 23, 2010
    Publication date: November 10, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Myoung-Gyun SUH, Dong-Ho KIM, Ji-Eun CHANG