Patents by Inventor Yun-Hoon Choung

Yun-Hoon Choung 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: 20240009349
    Abstract: Disclosed is a method of treating a chronic tympanic perforation with a PCL patch tissue regeneration scaffold comprising preparing solution by adding polycaprolactone (PCL) and an acid to an organic solvent; preparing an electrospinning solution by adding a growth factor to the solution and stirring; collecting nanofibers arranged in a spindle shape on a collector by connecting the electrospinning solution prepared to a syringe pump and operating the electrospinning device; and administering the PCL patch tissue regeneration scaffold to a subject.
    Type: Application
    Filed: September 21, 2023
    Publication date: January 11, 2024
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Yun-Hoon CHOUNG, Jong Hoon CHUNG, Hoon SEONWOO, Kyoung-Je JANG, Beomyong SHIN
  • Patent number: 11534473
    Abstract: A composition for preventing or treating hearing loss, containing a Vitis vinifera leaf extract as an active ingredient, is disclosed. A pharmaceutical composition for preventing or treating hearing loss, containing the extract (a Vitis vinifera leaf extract) as an active ingredient, protects auditory hair cells in the cochlea and spiral ganglion cells from damage caused by noise and the like and effectively reduces the hearing threshold measured in the auditory nerves, thereby being usable as an agent for preventing or treating hearing loss.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: December 27, 2022
    Assignee: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Yun-Hoon Choung, Young Sun Kim, Young-Joon Park
  • Patent number: 11376233
    Abstract: The present invention relates to a pharmaceutical composition, containing sarpogrelate or a pharmaceutically acceptable salt thereof as an active ingredient, for preventing, alleviating, or treating sensorineural hearing loss. The sarporgrelate according to the present invention protects against hearing loss caused by noise through the suppression of auditory cell apoptosis and the expression increase of antioxidant enzyme in auditory cells, and thus can be advantageously used in the prevention and alleviation of sensorineural hearing loss.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: July 5, 2022
    Assignee: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Yun-Hoon Choung, Young Sun Kim, Young-Joon Park
  • Publication number: 20220133832
    Abstract: A composition containing a Vitis vinifera leaf extract as an active ingredient and its uses in preventing or treating tinnitus are disclosed. The composition may be a pharmaceutical composition or a food composition. The composition containing a Vitis vinifera leaf extract as an active ingredient is excellent in alleviating and improving tinnitus caused by noise and the like, and therefore is very useful as a composition for preventing or treating tinnitus.
    Type: Application
    Filed: February 12, 2020
    Publication date: May 5, 2022
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventor: Yun-Hoon CHOUNG
  • Patent number: 11185530
    Abstract: The present invention relates to a composition for preventing or treating hearing loss, containing an HMG-CoA reductase inhibitor and, more specifically, to a composition for preventing or treating diabetes-mediated hearing loss, containing, as an active ingredient(s), one or more types selected from the group consisting of atorvastatin, fluvastatin, lovastatin, pitavastatin, pravastatin, rosuvastatin and simvastatin. A pharmaceutical composition containing an HMG-CoA reductase inhibitor, according to the present invention, inhibits auditory cell death caused by diabetes, and thus is very useful as an agent for preventing or treating diabetes-mediated sensorineural hearing loss.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: November 30, 2021
    Assignee: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Yun-Hoon Choung, Yun Yeong Lee, Oak-Sung Choo
  • Publication number: 20210299084
    Abstract: A pharmaceutical composition containing forskolin and retinoic acid as active ingredients which is suitable for preventing or treating sensorineural hearing loss is disclosed. A pharmaceutical composition containing forskolin and retinoic acid as active ingredients has an excellent effect of preventing, alleviating or treating hearing loss caused by ototoxic drugs during anticancer treatment, and thus is useful as a pharmaceutical composite preparation capable of reducing side effects of anticancer drugs and, additionally, as an agent for preventing or treating sensorineural hearing loss.
    Type: Application
    Filed: August 6, 2019
    Publication date: September 30, 2021
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Yun-Hoon CHOUNG, Yeon Ju KIM
  • Publication number: 20210145919
    Abstract: A composition for preventing or treating hearing loss, containing a Vitis vinifera leaf extract as an active ingredient, is disclosed. A pharmaceutical composition for preventing or treating hearing loss, containing the extract (a Vitis vinifera leaf extract) as an active ingredient, protects auditory hair cells in the cochlea and spiral ganglion cells from damage caused by noise and the like and effectively reduces the hearing threshold measured in the auditory nerves, thereby being usable as an agent for preventing or treating hearing loss.
    Type: Application
    Filed: May 30, 2018
    Publication date: May 20, 2021
    Applicant: AJOU UNIVERSITY INDUSRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Yun-Hoon CHOUNG, Young Sun KIM, Young-Joon PARK
  • Publication number: 20200384151
    Abstract: Disclosed is a method of preparing PCL patch tissue regeneration scaffold comprising preparing solution by adding polycaprolactone (PCL) and an acid to an organic solvent; preparing an electrospinning solution by adding a growth factor to the solution and stirring; and collecting nanofibers arranged in a spindle shape on a collector by connecting the electrospinning solution prepared to a syringe pump and operating the electrospinning device.
    Type: Application
    Filed: March 2, 2017
    Publication date: December 10, 2020
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Yun-Hoon CHOUNG, Jong Hoon CHUNG, Hoon SEONWOO, Kyoung-Je JANG, Beomyong SHIN
  • Publication number: 20200121629
    Abstract: The present invention relates to a pharmaceutical composition, containing sarpogrelate or a pharmaceutically acceptable salt thereof as an active ingredient, for preventing, alleviating, or treating sensorineural hearing loss. The sarporgrelate according to the present invention protects against hearing loss caused by noise through the suppression of auditory cell apoptosis and the expression increase of antioxidant enzyme in auditory cells, and thus can be advantageously used in the prevention and alleviation of sensorineural hearing loss.
    Type: Application
    Filed: April 10, 2018
    Publication date: April 23, 2020
    Inventors: Yun-Hoon CHOUNG, Young Sun KIM, Young-Joon PARK
  • Publication number: 20200022954
    Abstract: The present invention relates to a composition for preventing or treating hearing loss, containing an HMG-CoA reductase inhibitor and, more specifically, to a composition for preventing or treating diabetes-mediated hearing loss, containing, as an active ingredient(s), one or more types selected from the group consisting of atorvastatin, fluvastatin, lovastatin, pitavastatin, pravastatin, rosuvastatin and simvastatin. A pharmaceutical composition containing an HMG-CoA reductase inhibitor, according to the present invention, inhibits auditory cell death caused by diabetes, and thus is very useful as an agent for preventing or treating diabetes-mediated sensorineural hearing loss.
    Type: Application
    Filed: March 9, 2018
    Publication date: January 23, 2020
    Inventors: Yun-Hoon CHOUNG, Yun Yeong LEE, Oak-Sung CHOO
  • Patent number: 10441616
    Abstract: The present invention provides a compound having an effect of preventing and/or treating the damage or degeneration of cochlear (and vestibular) mother cells and spiral ganglion neurons by downregulating a cysteinyl leukotriene receptor. Particularly, the present invention provides a composition for preventing or treating sensorineural hearing loss, containing a cysteinyl leukotriene receptor and a Ginkgo biloba extract as active ingredients, on the basis of the co-administration of a cysteinyl leukotriene receptor and a Ginkgo biloba extract having an excellent effect of protecting hearing.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: October 15, 2019
    Assignee: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Sang Myun Park, Jung Sub Park, Yun Hoon Choung, Yeon Ju Kim
  • Patent number: 10016400
    Abstract: A pharmaceutical or health food includes rapamycin as an active ingredient, the pharmaceutical or health food being applied for prevention, improvement, and treatment of ototoxic hearing loss caused by an aminoglycoside-based antibiotic, sudden sensorineural hearing loss, and noise induced hearing loss. The pharmaceutical or health food is also applied to a pharmaceutical composite preparation of an aminoglycoside-based antibiotic and rapamycin, the pharmaceutical composite preparation reducing a side effect of the aminoglycoside-based antibiotic.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: July 10, 2018
    Assignee: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Yun-Hoon Choung, Yeon Ju Kim
  • Patent number: 9925198
    Abstract: The present invention is related to a pharmaceutical composition and health food for preventing or treating hearing loss, wherein the pharmaceutical composition and health food contain carbenoxolone or its pharmaceutically acceptable salts as an effective component. More particularly, a composition including carbenoxolone or its pharmaceutically acceptable salts as an effective component is provided as a pharmaceutical composition for preventing or treating ototoxic hearing loss due to the carbenoxolone or its pharmaceutically acceptable salts prevent damages on auditory cells from ototoxic drugs such as cisplatin anticancer drugs, and the composition may be used as a drug for treating noise-induced hearing loss and age-related hearing loss, as well as ototoxic hearing loss.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: March 27, 2018
    Assignee: AJOU UNIVERSITY INDUSTRY-ACADEMIC CORPORATION FOUNDATION
    Inventors: Yun-Hoon Choung, Yeon Ju Kim
  • Publication number: 20170165309
    Abstract: The present invention provides a compound having an effect of preventing and/or treating the damage or degeneration of cochlear (and vestibular) mother cells and spiral ganglion neurons by downregulating a cysteinyl leukotriene receptor. Particularly, the present invention provides a composition for preventing or treating sensorineural hearing loss, containing a cysteinyl leukotriene receptor and a ginkgo biloba extract as active ingredients, on the basis of the co-administration of a cysteinyl leukotriene receptor and a ginkgo biloba extract having an excellent effect of protecting hearing.
    Type: Application
    Filed: February 23, 2015
    Publication date: June 15, 2017
    Inventors: Sang Myun Park, Jung Sub Park, Yun Hoon Choung, Yeon Ju Kim
  • Publication number: 20170014425
    Abstract: The present invention is related to a pharmaceutical composition and health food for preventing or treating hearing loss, wherein the pharmaceutical composition and health food contain carbenoxolone or its pharmaceutically acceptable salts as an effective component. More particularly, a composition including carbenoxolone or its pharmaceutically acceptable salts as an effective component is provided as a pharmaceutical composition for preventing or treating ototoxic hearing loss due to the carbenoxolone or its pharmaceutically acceptable salts prevent damages on auditory cells from ototoxic drugs such as cisplatin anticancer drugs, and the composition may be used as a drug for treating noise-induced hearing loss and age-related hearing loss, as well as ototoxic hearing loss.
    Type: Application
    Filed: July 13, 2016
    Publication date: January 19, 2017
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Yun-Hoon CHOUNG, Yeon Ju KIM
  • Publication number: 20160101088
    Abstract: A pharmaceutical or health food includes rapamycin as an active ingredient, the pharmaceutical or health food being applied for prevention, improvement, and treatment of ototoxic hearing loss caused by an aminoglycoside-based antibiotic, sudden sensorineural hearing loss, and noise induced hearing loss. The pharmaceutical or health food is also applied to a pharmaceutical composite preparation of an aminoglycoside-based antibiotic and rapamycin, the pharmaceutical composite preparation reducing a side effect of the aminoglycoside-based antibiotic.
    Type: Application
    Filed: October 7, 2015
    Publication date: April 14, 2016
    Inventors: Yun-Hoon Choung, Yeon Ju Kim