Patents by Inventor Ja Hyun Nam

Ja Hyun Nam 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).

  • Enzyme-porous carbon composite
    Patent number: 11254925
    Abstract: The present invention relates to an enzyme-porous carbon composite, and more specifically, to an enzyme-porous material composite capable of realizing a much higher enzyme adsorption amount than porous silica and maintaining high stability of an immobilized enzyme.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: February 22, 2022
    Assignee: Korea Universitv Research and Business Foundation
    Inventors: Jungbae Kim, Young Jun Ju, Li Na Kim, Ja Hyun Nam, In Seon Lee
  • ENZYME-POROUS CARBON COMPOSITE
    Publication number: 20210115431
    Abstract: The present invention relates to an enzyme-porous carbon composite, and more specifically, to an enzyme-porous material composite capable of realizing a much higher enzyme adsorption amount than porous silica and maintaining high stability of an immobilized enzyme.
    Type: Application
    Filed: December 11, 2020
    Publication date: April 22, 2021
    Applicant: Korea University Research and Business Foundation
    Inventors: Jungbae KIM, Young Jun JU, Li Na KIM, Ja Hyun NAM, In Seon LEE
  • Vibration generating device
    Patent number: 9833812
    Abstract: There is provided a vibration generating device including: a housing having an internal space; a base member installed in the housing to be disposed in a central portion of the housing; a first plate installed on the base member; a first piezoelectric element installed on an upper surface of the first plate; a second piezoelectric element disposed to face the first piezoelectric element through a connection member; a second plate installed on the second piezoelectric element; and a vibration amplifying part installed on an upper surface of the second plate.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: December 5, 2017
    Assignees: MPLUS CO., LTD., IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Seung Hyeon Jeong, Hwa Young Oh, Gun Hee Jang, Ja Hyun Nam, Young Jin Kim
  • Vibration generating apparatus
    Patent number: 9660173
    Abstract: There is provided a vibration generating apparatus including: a housing having an internal space; a vibrating plate fixedly installed in the housing and having a disc shape; a piezoelectric element fixed to the vibrating plate and having a hollow disc shape; and a vibration element vibrating together with the vibrating plate when the piezoelectric element is deformed.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: May 23, 2017
    Assignees: MPLUS CO., LTD., IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Hwa Young Oh, Seung Hyeon Jeong, Gun Hee Jang, Ja Hyun Nam, Tae Heum Yeon, Young Jin Kim
  • VIBRATION GENERATING DEVICE
    Publication number: 20160074906
    Abstract: There is provided a vibration generating device including: a housing having an internal space; a base member installed in the housing to be disposed in a central portion of the housing; a first plate installed on the base member; a first piezoelectric element installed on an upper surface of the first plate; a second piezoelectric element disposed to face the first piezoelectric element through a connection member; a second plate installed on the second piezoelectric element; and a vibration amplifying part installed on an upper surface of the second plate.
    Type: Application
    Filed: March 4, 2015
    Publication date: March 17, 2016
    Applicants: SAMSUNG ELECTRO-MECHANICS CO., LTD., Industry-University Cooperation Foundation Hanyang University
    Inventors: Seung Hyeon JEONG, Hwa Young OH, Gun Hee JANG, Ja Hyun NAM, Young Jin KIM
  • VIBRATION GENERATING APPARATUS
    Publication number: 20150188455
    Abstract: There is provided a vibration generating apparatus including: a housing having an internal space; a vibrating plate fixedly installed in the housing and having a disc shape; a piezoelectric element fixed to the vibrating plate and having a hollow disc shape; and a vibration element vibrating together with the vibrating plate when the piezoelectric element is deformed.
    Type: Application
    Filed: May 22, 2014
    Publication date: July 2, 2015
    Applicants: SAMSUNG ELECTRO-MECHANICS CO., LTD., IUCF-HYU(Industry-University Cooperation Foundation Hanyang University)
    Inventors: Hwa Young Oh, Seung Hyeon Jeong, Gun Hee Jang, Ja Hyun Nam, Tae Heum Yeon, Young Jin Kim
  • VIBRATION GENERATING APPARATUS
    Publication number: 20140333179
    Abstract: There is provided a vibration generating apparatus including: a piezoelectric element fixedly attached to a vibration transfer member and expanded and contracted in a direction from an inner surface thereof toward an outer surface thereof or in a direction from the outer surface thereof toward the inner surface thereof when power is applied thereto; and a vibration element connected to the piezoelectric element to vibrate.
    Type: Application
    Filed: May 12, 2014
    Publication date: November 13, 2014
    Applicants: SAMSUNG ELECTRO-MECHANICS CO., LTD., IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Hwa Young Oh, Seung Hyeon Jeong, Gun Hee Jang, Ja Hyun Nam, Tae Heum Yeon, Young Jin Kim