Patents by Inventor Chang Geun Song

Chang Geun Song 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).

  • Thermal insulation structure having shear rebars and tension bars integrally formed in thermal insulation unit
    Patent number: 11655631
    Abstract: A thermal insulation structure comprises a thermal insulation unit provided between a floor slab and a balcony slab. Tension rebars are formed in parallel in the floor slab and the balcony slab, but are not in the thermal insulation unit. Connection tension rebars which are parallel with each other pass through the thermal insulation unit and connect the tension rebars in the floor slab and the balcony slab. Shear rebars are formed inside the thermal insulation unit to connect and support the connection tension rebars. Auxiliary shear rebars horizontally connect the shear rebars to reinforce support.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: May 23, 2023
    Inventors: Byung Kwun Ahn, Young Jong Yoo, Sang Hee An, Chang Geun Song, Jun Bum Ahn
  • THERMAL INSULATION STRUCTURE HAVING SHEAR REBARS AND TENSION BARS INTEGRALLY FORMED IN THERMAL INSULATION UNIT
    Publication number: 20220002992
    Abstract: A thermal insulation structure comprises a thermal insulation unit provided between a floor slab and a balcony slab. Tension rebars are formed in parallel in the floor slab and the balcony slab, but are not in the thermal insulation unit. Connection tension rebars which are parallel with each other pass through the thermal insulation unit and connect the tension rebars in the floor slab and the balcony slab. Shear rebars are formed inside the thermal insulation unit to connect and support the connection tension rebars. Auxiliary shear rebars horizontally connect the shear rebars to reinforce support.
    Type: Application
    Filed: June 22, 2021
    Publication date: January 6, 2022
    Inventors: Byung Kwun AHN, Young Jong YOO, Sang Hee AN, Chang Geun SONG, Jun Bum AHN
  • Method for the preparation of atorvastatin and intermediates used therein
    Patent number: 8178697
    Abstract: The present invention relates to a novel method for preparing atorvastatin. According to the present invention, provided are a novel intermediate of the preparation of atorvastatin and a method of preparing large amounts of atorvastatin in a safe manner using the intermediate.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: May 15, 2012
    Assignee: Chong Kun Dang Pharmaceutical Corp.
    Inventors: Soon Kil Ahn, Hong-Woo Lee, Choong Leol Yoo, Young-Min Kim, Chang Geun Song, Sung Kwun Kang, Jun A. You, Bong Kwan Soh, Dong Hyuk Nam
  • METHOD FOR THE PREPARATION OF ATORVASTATIN AND INTERMEDIATES USED THEREIN
    Publication number: 20110015407
    Abstract: The present invention relates to a novel method for preparing atorvastatin. According to the present invention, provided are a novel intermediate of the preparation of atorvastatin and a method of preparing large amounts of atorvastatin in a safe manner using the intermediate.
    Type: Application
    Filed: April 25, 2008
    Publication date: January 20, 2011
    Applicant: CHONG KUN DANG PHARMACEUTICAL CORP.
    Inventors: Soon Kil Ahn, Hong-Woo Lee, Choong Leol Yoo, Young-Min Kim, Chang Geun Song, Sung Kwun Kang, Jun A. You, Bong Kwan Soh, Dong Hyuk Nam