Patents by Inventor Hyi-Seung Lee

Hyi-Seung Lee 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: 20240158693
    Abstract: The probe for hydrogen sulfide detection according to the present invention is represented by chemical formula 1 below.
    Type: Application
    Filed: November 11, 2021
    Publication date: May 16, 2024
    Inventors: Jong Seok LEE, Dan-Bi SUNG, Yeon-Ju LEE, Jihoon LEE, Hyi Seung LEE, Hee Jae SHIN
  • Patent number: 11878984
    Abstract: The present invention relates to new compounds derived from marine actinomycetes Streptomyces, and the new compound according to the present invention has an inhibitory effect of NO production on BV-2 microglia stimulated with LPS, and thus can be utilized for the prevention and treatment of neuroinflammatory diseases.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: January 23, 2024
    Assignee: KOREA INSTITUTE OF OCEAN SCIENCE & TECHNOLOGY
    Inventors: Hee Jae Shin, Byeoung Kyu Choi, Hwa Sun Lee, Hyi Seung Lee, Yeon Ju Lee, Jong Seok Lee, Ji Hoon Lee
  • Patent number: 11306103
    Abstract: The present invention relates to a novel thieno[3,2-b]pyridine-5(4H)-one derivative compound, a preparation method thereof, and a use thereof. The novel thieno[3,2-b]pyridine-5(4H)-one derivative compound according to the present invention is synthesized via an aza-[3+3] cyclization addition reaction using BOP, wherein the compound is obtained by synthesizing a 4-arylthiophen-3-amine in which aryl groups such as 4-piperidyl-C6H4, 4-pyrrolidyl-C6H4, 4-MeOC6H4, 3,4,5-(MeO)3C6H4, C6H5, 4-C6H5C6H4, and 4-F3COC6H4 are introduced via a synthesis process by a bromination reaction, a hydrolysis reaction, a decarboxylation reaction, and a Suzuki coupling reaction of methyl 3-aminothiophene carboxylate, and by synthesizing 4-arylthiophen-3-amine and mono-methyl fumarate via a formal aza-[3+3] cyclization addition reaction using BOP and conjugation.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: April 19, 2022
    Inventors: Jong Seok Lee, Dan Bi Sung, Bo Hyun Mun, Hyi Seung Lee, Yeon Ju Lee, Ji Hoon Lee, Hee Jae Shin, Sol Park
  • Patent number: 11286273
    Abstract: Disclosed are a novel rhamnolipid compound, an optical isomer thereof, or a pharmaceutically acceptable salt thereof in the present disclosure. The novel rhamnolipid compound, the optical isomer thereof, or the pharmaceutically acceptable salt thereof selectively exhibits cytotoxicity to human cancer cell lines, thereby inhibiting the growth of cancer cells, and thus has particularly excellent preventive or therapeutic effects against the above-mentioned types of cancers.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: March 29, 2022
    Assignee: KOREA INSTITUTE OF OCEAN SCIENCE & TECHNOLOGY
    Inventors: Hee Jae Shin, Byeoung Kyu Choi, Hwa Sun Lee, Hyi Seung Lee, Yeon Ju Lee, Jong Seok Lee, Ji Hoon Lee, Chan Hong Park
  • Publication number: 20220033413
    Abstract: The present invention relates to new compounds derived from marine actinomycetes Streptomyces, and the new compound according to the present invention has an inhibitory effect of NO production on BV-2 microglia stimulated with LPS, and thus can be utilized for the prevention and treatment of neuroinflammatory diseases.
    Type: Application
    Filed: June 3, 2019
    Publication date: February 3, 2022
    Applicant: KOREA INSTITUTE OF OCEAN SCIENCE & TECHNOLOGY
    Inventors: Hee Jae SHIN, Byeoung Kyu CHOI, Hwa Sun LEE, Hyi Seung LEE, Yeon Ju LEE, Jong Seok LEE, Ji Hoon LEE
  • Publication number: 20210355151
    Abstract: Disclosed are a novel rhamnolipid compound, an optical isomer thereof, or a pharmaceutically acceptable salt thereof in the present disclosure. The novel rhamnolipid compound, the optical isomer thereof, or the pharmaceutically acceptable salt thereof selectively exhibits cytotoxicity to human cancer cell lines, thereby inhibiting the growth of cancer cells, and thus has particularly excellent preventive or therapeutic effects against the above-mentioned types of cancers.
    Type: Application
    Filed: March 8, 2019
    Publication date: November 18, 2021
    Applicant: KOREA INSTITUTE OF OCEAN SCIENCE & TECHNOLOGY
    Inventors: Hee Jae Shin, Byeoung Kyu Choi, Hwa Sun Lee, Hyi Seung Lee, Yeon Ju Lee, Jong Seok Lee, Ji Hoon Lee, Chan Hong Park
  • Publication number: 20210332063
    Abstract: Disclosed are a method for synthesizing a thieno[3,2-b]pyridine-5(4H)-one derivative by using a gold catalyst and a use of the derivative compound, wherein the novel thieno[3,2-b]pyridine-5(4H)-one derivative of the present disclosure, which is a compound synthesized using gold as a catalyst, has fluorescence characteristics with a wide range of emission wavelengths and thus can be helpfully used in various industrial fields, such as physics, chemistry, and biomedicine research.
    Type: Application
    Filed: August 17, 2018
    Publication date: October 28, 2021
    Inventors: Jong Seok Lee, Dan Bi Sung, Bo Hyun Mun, Sol Park, Hyi Seung Lee, Yeon Ju Lee, Ji Hoon Lee, Hee Jae Shin
  • Publication number: 20210171539
    Abstract: The present invention relates to a novel thieno[3,2-b]pyridine-5(4H)-one derivative compound, a preparation method thereof, and a use thereof. The novel thieno[3,2-b]pyridine-5(4H)-one derivative compound according to the present invention is synthesized via an aza-[3+3] cyclization addition reaction using BOP, wherein the compound is obtained by synthesizing a 4-arylthiophen-3-amine in which aryl groups such as 4-piperidyl-C6H4, 4-pyrrolidyl-C6H4, 4-MeOC6H4, 3,4,5-(MeO)3C6H4, C6H5, 4-C6H5C6H4, and 4-F3COC6H4 are introduced via a synthesis process by a bromination reaction, a hydrolysis reaction, a decarboxylation reaction, and a Suzuki coupling reaction of methyl 3-aminothiophene carboxylate, and by synthesizing 4-arylthiophen-3-amine and mono-methyl fumarate via a formal aza-[3+3] cyclization addition reaction using BOP and conjugation.
    Type: Application
    Filed: December 27, 2017
    Publication date: June 10, 2021
    Inventors: Jong Seok Lee, Dan Bi Sung, Bo Hyun Mun, Hyi Seung Lee, Yeon Ju Lee, Ji Hoon Lee, Hee Jae Shin, Sol Park
  • Publication number: 20190269593
    Abstract: Provided is a composition for promoting hair growth, containing, as an active ingredient, a new compound represented by the following formula 1 or a salt thereof, which exhibits an excellent effect of promoting the growth of dermal papilla cells to thereby exhibit the effect of promoting hair growth: wherein R is any one selected from the group consisting of 4-pentenoyl, 10-undecenoyl, isobutyl formate, and 2,4-dihydroxybenzoyl.
    Type: Application
    Filed: May 17, 2019
    Publication date: September 5, 2019
    Inventors: Hee Jae SHIN, Min Ah LEE, Mojid MONDOL, Hyi-Seung LEE, Jong Seok LEE, Yeon-Ju LEE
  • Patent number: 10376453
    Abstract: Provided is a composition for promoting hair growth, containing, as an active ingredient, a new compound represented by the following formula 1 or a salt thereof, which exhibits an excellent effect of promoting the growth of dermal papilla cells to thereby exhibit the effect of promoting hair growth: Formula 1 wherein R is any one selected from the group consisting of 4-pentenoyl, 10-undecenoyl, isobutyl formate, and 2,4-dihydroxybenzoyl.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: August 13, 2019
    Assignee: KOREA INSTITUTE OF OCEAN SCIENCE AND TECHNOLOGY
    Inventors: Hee Jae Shin, Min Ah Lee, Mojid Mondol, Hyi-Seung Lee, Jong Seok Lee, Yeon-Ju Lee
  • Publication number: 20180185257
    Abstract: Provided is a composition for promoting hair growth, containing, as an active ingredient, a new compound represented by the following formula 1 or a salt thereof, which exhibits an excellent effect of promoting the growth of dermal papilla cells to thereby exhibit the effect of promoting hair growth: wherein R is any one selected from the group consisting of 2-methylbutyryl, 3-methylbutyryl, cinnamoyl, 4-pentenoyl, 10-undecenoyl, isobutyl formate, 2,4-dihydroxybenzoyl, geranyl, farnesyl, acryloyl, propanone, 2-pentanone, 1-(4-hydroxyphenyl)ethanone, 1-(2,4-dihydroxyphenyl)ethanone, pentanoic acid, 2-hydroxypropanoic acid, 2-phenylacetic acid, 2-(4-(propanoyl)phenyl)acetic acid, 4-methylbenzoic acid, 4-(4-phenyl)-4-oxobutanoic acid, 2-oxoethyl acetyl, 2-phenoxyacetyl, 2-(benzyloxy)acetyl, 4-methoxybenzoyl, 3,5-dimethylphenol, 6-methoxybenzene-1,4-diol, propenylbenzene, and 4-hydroxycoumarin.
    Type: Application
    Filed: December 29, 2016
    Publication date: July 5, 2018
    Inventors: Hee Jae SHIN, Min Ah LEE, Mojid MONDOL, Hyi-Seung LEE, Jong Seok LEE, Yeon-Ju LEE
  • Patent number: 7763724
    Abstract: A high-pressure liquefied extract of marine algae for producing bioethanol and a method of producing the liquid extract from marine algae under high pressure, and a method of producing the bioethanol from the high-pressure liquid extract by fermentation with yeast are disclosed. According to the production method of bioethanol using marine algae, the high-pressure liquefied extract can be obtained in high yield and fermentation time can be also reduced. Consequently, the yield of bioethanol is increased. Furthermore, the method gives economical and environmentally friendly values from natural marine algae.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: July 27, 2010
    Assignee: Korea Ocean Research And Development Institute
    Inventors: Do Hyung Kang, Hyeon Yong Lee, Jae Gun Han, Heung Sik Park, Hyi Seung Lee, Rae Seon Kang
  • Publication number: 20100041926
    Abstract: A high-pressure liquefied extract of marine algae for producing bioethanol and a method of producing the liquid extract from marine algae under high pressure, and a method of producing the bioethanol from the high-pressure liquid extract by fermentation with yeast are disclosed. According to the production method of bioethanol using marine algae, the high-pressure liquefied extract can be obtained in high yield and fermentation time can be also reduced. Consequently, the yield of bioethanol is increased. Furthermore, the method gives economical and environmentally friendly values from natural marine algae.
    Type: Application
    Filed: July 31, 2009
    Publication date: February 18, 2010
    Applicant: KOREA OCEAN RESEARCH AND DEVELOPMENT INSTITUTE
    Inventors: Do Hyung Kang, Hyeon Yong Lee, Jae Gun Han, Heung Sik Park, Hyi Seung Lee, Rae Seon Kang
  • Patent number: 6383521
    Abstract: The present invention provides Wondonin A of general formula (I), which is extracted from a two-sponge association of phylum Porifera (sponge) and has antiangiogenic activity, and a process for preparing the same. Wondonin A has no cytotoxicity, but has an inhibitory activity against angiogenesis which is one of the crucial mechanisms of cancer cell metastasis, thus, it can be applied not only as an anticancer drug but also as a therapeutic agent of angiogenesis-associated diseases such as cardiac ischemia, rheumatoid arthritis, and diabetes mellitus.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: May 7, 2002
    Assignee: Korea Ocean Research and Development
    Inventors: Jong-Heon Shin, Ki-Woong Cho, Young-Wan Seo, Jung-Rae Rho, Hyi-Seung Lee, Ho-Jeong Kwon