Patents by Inventor Le Han

Le Han 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: 20250195011
    Abstract: A system for and a method of analyzing a corneal lesion using an anterior segment image according to the present invention. The system includes: an image acquisition unit configured to acquire an anterior segment image from the eyeball of a subject, a feature extractor configured to extract feature information on a position and a cause of a lesion in the cornea from the anterior segment image by applying a convolution layer to the anterior segment image through machine learning on the basis of a database in which clinical information pre-acquired by analyzing positions and causes of lesions in the corneas of subjects is stored; and a result determination unit configured to identify a position of the cornea from anterior segment image using the feature information and to analyze and determine the position and the cause of the lesion in the cornea from the position of the cornea.
    Type: Application
    Filed: February 27, 2025
    Publication date: June 19, 2025
    Inventors: Dong Hui LIM, Gyu Le HAN, Young Jun KIM, Yong Man RO, Hye Bin LEE
  • Patent number: 12268528
    Abstract: A system for and a method of analyzing a corneal lesion using an anterior segment image according to the present invention. The system includes: an image acquisition unit configured to acquire an anterior segment image from the eyeball of a subject, a feature extractor configured to extract feature information on a position and a cause of a lesion in the cornea from the anterior segment image by applying a convolution layer to the anterior segment image through machine learning on the basis of a database in which clinical information pre-acquired by analyzing positions and causes of lesions in the corneas of subjects is stored; and a result determination unit configured to identify a position of the cornea from the anterior segment image using the feature information and to analyze and determine the position and the cause of the lesion in the cornea from the position of the cornea.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: April 8, 2025
    Assignee: SAMSUNG LIFE PUBLIC WELFARE FOUNDATION
    Inventors: Dong Hui Lim, Gyu Le Han, Young Jun Kim, Yong Man Ro, Hye Bin Lee
  • Publication number: 20240361224
    Abstract: The present application introduces a membrane fouling warning methodology grounded in machine learning. It utilizes a machine learning-based membrane fouling prediction model to automatically forecast and generate electrochemical information values, which characterize the extent of membrane fouling at various time points, based on influent water quality parameters. It then acquires the electrochemical information values Zt at a moment t and Zt+?t at a moment t+?t. Subsequently, it computes and assesses the respective fouling levels using the electrochemical information values derived from the membrane fouling prediction model. Finally, it issues an early warning signal contingent upon the determined warning level. This methodology facilitates proactive understanding and management of membrane fouling, thereby sustaining the normal operation of the membrane fouling treatment system, mitigating the propensity for membrane assembly fouling, and prolonging the operational lifespan of the membrane assembly.
    Type: Application
    Filed: April 27, 2024
    Publication date: October 31, 2024
    Applicant: Chongqing University
    Inventors: Le HAN, Ting ZOU, Jian LIU, Lu ZHOU, Haoquan ZHANG, Jingmei YAO
  • Patent number: 12123820
    Abstract: The present application introduces a membrane fouling warning methodology grounded in machine learning. It utilizes a machine learning-based membrane fouling prediction model to automatically forecast and generate electrochemical information values, which characterize the extent of membrane fouling at various time points, based on influent water quality parameters. It then acquires the electrochemical information values Zt at a moment t and Z++?t at a moment t+?t. Subsequently, it computes and assesses the respective fouling levels using the electrochemical information values derived from the membrane fouling prediction model. Finally, it issues an early warning signal contingent upon the determined warning level. This methodology facilitates proactive understanding and management of membrane fouling, thereby sustaining the normal operation of the membrane fouling treatment system, mitigating the propensity for membrane assembly fouling, and prolonging the operational lifespan of the membrane assembly.
    Type: Grant
    Filed: April 27, 2024
    Date of Patent: October 22, 2024
    Assignee: Chongqing University
    Inventors: Le Han, Ting Zou, Jian Liu, Lu Zhou, Haoquan Zhang, Jingmei Yao
  • Publication number: 20230022921
    Abstract: A system for and a method of analyzing a corneal lesion using an anterior segment image according to the present invention. The system includes: an image acquisition unit configured to acquire an anterior segment image from the eyeball of a subject, a feature extractor configured to extract feature information on a position and a cause of a lesion in the cornea from the anterior segment image by applying a convolution layer to the anterior segment image through machine learning on the basis of a database in which clinical information pre-acquired by analyzing positions and causes of lesions in the corneas of subjects is stored; and a result determination unit configured to identify a position of the cornea from the anterior segment image using the feature information and to analyze and determine the position and the cause of the lesion in the cornea from the position of the cornea.
    Type: Application
    Filed: December 10, 2020
    Publication date: January 26, 2023
    Inventors: Dong Hui LIM, Gyu Le HAN, Young Jun KIM, Yong Man RO, Hye Bin LEE
  • Publication number: 20200251659
    Abstract: The present invention relates to a novel organic compound and an organic electroluminescent device using the same, and more particularly, to a novel compound having excellent electron transport capability and light emitting capability, and an organic electroluminescent device improved in terms of luminous efficiency, driving voltage, lifespan, etc. by including the novel compound in one or more organic layers.
    Type: Application
    Filed: May 18, 2018
    Publication date: August 6, 2020
    Applicant: DOOSAN CORPORATION
    Inventors: Yong Hwan LEE, Min Sik EUM, Jae Yi SIM, Woo Jae PARK, Song le HAN