Patents by Inventor Hak-su Jang

Hak-su Jang 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: 10980829
    Abstract: The present invention relates to a composition for dermal injection which includes two or more types of cross-linked hyaluronic acid particles having different particle diameters and non-cross-linked hyaluronic acid. The composition for dermal injection according to the present invention satisfies viscosity, extrusion force, and viscoelasticity conditions for dermal injection, and an extrusion force deviation is low so that the user does not feel fatigue when the composition is injected into the dermal thereof. Also, the composition is excellent in viscoelasticity and tissue restoring ability, is maintained for a long period of time, allows rapid recovery because an initial swelling degree is low, and also is excellent in safety and stability in the body.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: April 20, 2021
    Assignees: CG Bio Co., Ltd., DNCompany, Daewoong Pharmaceutical Co., Ltd.
    Inventors: Ji Sun Lee, Su Hyun Jung, Hak Su Jang, Jung Eun Choo, Hye Young Jung
  • Publication number: 20200061241
    Abstract: The present invention relates to a composition for dermal injection which includes two or more types of cross-linked hyaluronic acid particles having different particle diameters and non-cross-linked hyaluronic acid. The composition for dermal injection according to the present invention satisfies viscosity, extrusion force, and viscoelasticity conditions for dermal injection, and an extrusion force deviation is low so that the user does not feel fatigue when the composition is injected into the dermal thereof. Also, the composition is excellent in viscoelasticity and tissue restoring ability, is maintained for a long period of time, allows rapid recovery because an initial swelling degree is low, and also is excellent in safety and stability in the body.
    Type: Application
    Filed: February 27, 2018
    Publication date: February 27, 2020
    Applicants: CG Bio Co., Ltd., DNCompany, Daewoong Pharmaceutical Co., Ltd.
    Inventors: Ji Sun LEE, Su Hyun JUNG, Hak Su JANG, Jung Eun CHOO, Hye Young JUNG
  • Publication number: 20200016191
    Abstract: The present invention relates to a composition for dermal injection which includes two or more types of cross-linked hyaluronic acid particles having different particle diameters and non-cross-linked hyaluronic acid. The composition for dermal injection according to the present invention satisfies viscosity, extrusion force, and viscoelasticity conditions for dermal injection, and an extrusion force deviation is low so that the user does not feel fatigue when the composition is injected into the dermal thereof. Also, the composition is excellent in viscoelasticity and tissue restoring ability, is maintained for a long period of time, allows rapid recovery because an initial swelling degree is low, and also is excellent in safety and stability in the body.
    Type: Application
    Filed: February 27, 2018
    Publication date: January 16, 2020
    Applicants: CG Bio Co., Ltd., DNCompany, Daewoong Pharmaceutical Co., Ltd.
    Inventors: Ji Sun LEE, Su Hyun JUNG, Hak Su JANG, Jung Eun CHOO, Hye Young JUNG
  • Publication number: 20190374457
    Abstract: The present invention relates to a composition for dermal injection which includes two or more types of cross-linked hyaluronic acid particles having different particle diameters and non-cross-linked hyaluronic acid. The composition for dermal injection according to the present invention satisfies viscosity, extrusion force, and viscoelasticity conditions for dermal injection, and an extrusion force deviation is low so that the user does not feel fatigue when the composition is injected into the dermal thereof. Also, the composition is excellent in viscoelasticity and tissue restoring ability, is maintained for a long period of time, allows rapid recovery because an initial swelling degree is low, and also is excellent in safety and stability in the body.
    Type: Application
    Filed: February 27, 2018
    Publication date: December 12, 2019
    Applicants: CG Bio Co., Ltd., DNCompany, Daewoong Pharmaceutical Co., Ltd.
    Inventors: Ji Sun LEE, Su Hyun JUNG, Hak Su JANG, Jung Eun CHOO, Hye Young JUNG
  • Publication number: 20180344896
    Abstract: Provided are a hyaluronic acid composition having excellent viscoelasticity and being easily injectable, and a preparation method thereof.
    Type: Application
    Filed: September 2, 2015
    Publication date: December 6, 2018
    Inventors: Su Hyun JUNG, Jun Hyuk SEO, Hyun Seung RYU, Hak Su JANG
  • Publication number: 20180339082
    Abstract: The present invention relates to a polyether ether ketone (PEEK)-based material comprising hydroxyapatite (HA) particles which are embedded discontinuously on the surface thereof, a method of preparing the PEEK-based material, and a bone graft comprising the PEEK-based material.
    Type: Application
    Filed: May 23, 2017
    Publication date: November 29, 2018
    Inventors: Mi Young Ryu, Jun Hyuk Seo, Hyun Seung Ryu, Nam Yul Cho, Hak Su Jang
  • Publication number: 20180311399
    Abstract: The present invention relates to a wound dressing material comprising a fibrillated acellular dermis matrix and a biodegradable polymer aqueous solution and, more specifically, to: a wound dressing material comprising 5-20 wt % of a fibrillated acellular dermis matrix, 0.5-5 wt % of a biodegradable polymer, and 75-94.5 wt % of water; and a preparation method therefor.
    Type: Application
    Filed: October 28, 2016
    Publication date: November 1, 2018
    Inventors: Hee Jun PARK, Hyun Seung RYU, Joon Pio HONG, Jun Hyuk SEO, Jong Ha PARK, Soon Gee HONG, Hak Su JANG, So Myoung LEE, Bo Young YOO
  • Publication number: 20150311768
    Abstract: The present invention relates to a resolver of an electric driving motor for vehicle which comprises a rotor, a stator comprising a stator main body which encircles the rotor and teeth which extend from the stator main body to be wound by a coil, a terminal module comprising a terminal end which contacts the coil for an electric connection and a terminal main body which supports the terminal end, and a connector module comprising a connector main body which is detachably coupled to the terminal main body and a lead line which is connected to an outer device and supported by the connector main body and which contacts the terminal end for an electric connection if the connector main body is coupled to the terminal main body, thus simplifying manufacturing process and repairing process and reducing cost.
    Type: Application
    Filed: July 2, 2015
    Publication date: October 29, 2015
    Inventors: In-sub Shin, Hong-Chan Eom, Hyun-ho Huh, Bum-yul Lee, Yeong-sik Kim, Gyu-ryong Choi, Man-heung Han, Kwang-hyeon Park, Eun-cheol Hong, Seung-pil Choi, Hak-su Jang, Geon-ho Park
  • Publication number: 20120262015
    Abstract: The present invention relates to a resolver of an electric driving motor for vehicle which comprises a rotor, a stator comprising a stator main body which encircles the rotor and teeth which extend from the stator main body to be wound by a coil, a terminal module comprising a terminal end which contacts the coil for an electric connection and a terminal main body which supports the terminal end, and a connector module comprising a connector main body which is detachably coupled to the terminal main body and a lead line which is connected to an outer device and supported by the connector main body and which contacts the terminal end for an electric connection if the connector main body is coupled to the terminal main body, thus simplifying manufacturing process and repairing process and reducing cost.
    Type: Application
    Filed: July 9, 2010
    Publication date: October 18, 2012
    Applicant: DAESUNG ELECTRIC CO., LTD.
    Inventors: In-sub Shin, Hong-Chan Eom, Hyun-ho Huh, Bum-yul Lee, Yeong-sik Kim, Gyu-ryong Choi, Man-heung Han, Kwang-hyeon Park, Eun-cheol Hong, Seung-pil Choi, Hak-su Jang, Geon-ho Park