Patents by Inventor Nam Hee Choi

Nam Hee Choi 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: 20240163234
    Abstract: Provided is a method of operating a terminal. The method includes determining a profile item applicable to the profile view for the account based on an input received by the terminal and a coordinate indicating a position where the profile item is provided on the profile view. The method includes displaying the profile item on a screen of the terminal based on the determined profile item and the determined coordinate. The method includes receiving an input related to the profile item, and displaying a visual effect corresponding to the input on the screen.
    Type: Application
    Filed: November 8, 2023
    Publication date: May 16, 2024
    Inventors: Sul Gi KIM, Ji Hwi PARK, Yun Jin KIM, Nam Hee KO, Hye Seon KIM, Bo Young JANG, Seung Yong JI, Jae Ick HWANG, Sun Je BANG, Ji On CHU, Hye Mi LEE, Shin Young LEE, Seung Uk JEONG, Eun Ho SON, Sang Min SEO, Jeong Ryeol CHOI
  • Publication number: 20240150337
    Abstract: The present invention relates to a 6-(isooxazolidin-2-yl)-N-phenylpyrimidin-4-amine derivative, and a pharmaceutical composition for preventing or treating cancer comprising the compound as an effective component. The compound exhibits high inhibitory activity against an epidermal growth factor receptor (EGFR) variant, or wild-type or variants of one or more of ERBB2 and ERBB4, and thus may be usefully used in the treatment of cancers in which same are expressed. In particular, the compound exhibits excellent inhibitory activity on proliferation of lung cancer cell lines, and thus can be usefully used in the treatment of lung cancer.
    Type: Application
    Filed: September 25, 2023
    Publication date: May 9, 2024
    Inventors: Youn Ho LEE, Ju Hee Kang, Se In Kang, Yi Kyung Ko, Eun Hwa Ko, Hwan Geun Choi, Jung Beom Son, Nam Doo Kim
  • Patent number: 11978602
    Abstract: A switch apparatus, includes: a base module including a base case, and a moving magnet movably mounted in the base case; and a manipulation module including a manipulation case, and a first magnet fixedly mounted in the manipulation case, wherein the moving magnet moves between a hold position and a releasable position, the hold position refers to a position in which the manipulation module is held onto the base module as an attractive force acts between the moving magnet and the first magnet, and the releasable position refers to a position in which the manipulation module is releasable from the base module as a repulsive force acts between the moving magnet and the first magnet.
    Type: Grant
    Filed: June 21, 2022
    Date of Patent: May 7, 2024
    Assignees: Hyundai Motor Company, Kia Corporation, NOVATECH CO., LTD, ALPS ELECTRIC KOREA CO., LTD.
    Inventors: Sang Hoon Shin, Hoo Sang Lee, Jong Hyun Choi, Dae Woo Park, Youn Tak Kim, Nam I Jo, Choon Teak Oh, Hong Jun Choi, Kon Hee Chang, Woo Joo Ahn
  • Patent number: 7223590
    Abstract: The present invention relates to a process for preparing pravastatin sodium. More specifically, in the process for preparing pravastatin sodium by adding a precursor of the pravastatin to a microorganism-culturing medium to obtain pravastatin sodium, the precursor of the pravastatin is added to a culture medium that is culturing Streptomyces carbophilus KBT229 (KCCM-10317), which is obtained by UV-mutating a Streptomyces carbophilus FERM BP-1145, and cultured to obtain the pravastatin sodium with high density and high efficiency.
    Type: Grant
    Filed: September 28, 2002
    Date of Patent: May 29, 2007
    Assignee: Kobiotech Co., Ltd.
    Inventors: Nam-Hee Choi, Kon-Tae Tak, Ki-Woo Lee, Nam-Hyun Kim, Jong-Chang Jun, Yoon-Jeong Kong, Kyung-Mi Lee
  • Publication number: 20040259216
    Abstract: The present invention relates to a process for preparing pravastatin sodium. More specifically, in the process for preparing pravastatin sodium by adding a precursor of the pravastatin to a microorganism-culturing medium to obtain pravastatin sodium, the precursor of the pravastatin is added to a culture medium that is culturing Streptomyces carbophilus KBT229 (KCCM-10317), which is obtained by UV-mutating a Streptomyces carbophilus FERM BP-1145, and cultured to obtain the pravastatin sodium with high density and high efficiency.
    Type: Application
    Filed: June 1, 2004
    Publication date: December 23, 2004
    Inventors: Nam-Hee Choi, Kon-Tae Tak, Ki-Woo Lee, Nam-Hyun Kim, Jong-Chang Jun, Yoon-Jeong Kong, Kyung-Mi Lee
  • Publication number: 20030172600
    Abstract: Because the present invention is the floor of the room which is made by laminating a porous expanded resin plastic sheet (2), a bulgy-and-hollow or undulating plate (3), and a porous expanded resin plastic sheet (2′) on a concrete slab (1), and then by plastering the surface of the expanded resin plastic sheet (2′) with mortar (4), it has the effect to improve the efficiency of sound insulation.
    Type: Application
    Filed: November 26, 2002
    Publication date: September 18, 2003
    Inventor: Nam Hee Choi
  • Patent number: 6306434
    Abstract: A pharmaceutical composition comprising a cyclosporin solid-state microemulsion is disclosed. In a preferred embodiment, the composition comprises a cyclosporin microemulsion dispersed in an enteric carrier. The composition does not dissolve in external phases such as artificial gastric fluid, but dissolves rapidly in artificial intestinal fluid, whereby it releases the cyclosporin microemulsion, providing rapid delivery of cyclosporin. The composition effectively maintains a therapeutic blood concentration of cyclosporin with once a day dosing, providing for convenience of administration and avoiding adverse effects induced by increasing peak blood cyclosporin concentrations associated with conventional cyclosporin formulations.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: October 23, 2001
    Assignee: Chong Kun Dang Corp.
    Inventors: Chung Il Hong, Jung Woo Kim, Nam Hee Choi, Hee Jong Shin, Su Geun Yang, Jae Hyun Kim, Jong Lae Lim, Chong Kook Kim
  • Patent number: 6063762
    Abstract: The present invention relates to a microemulsion preconcentrate composition comprising (1) cyclosporin as an active component; (2) alkyl ester of polycarboxylic acid and/or carboxylic acid ester of polyols as a lipophilic solvent; (3) oil; and (4) surfactant. The composition according to the present invention is characterized in that it dissolves in an external phase such as water, artificial gastric fluid and artificial intestinal fluid by controlling the mixing ratio of the components thereby to get the microemulsion form of inner phase diameter of 100 nm or below. The composition according to the present invention can be formulated as the dosage form of a soft capsule, a hard capsule sealed with a gelatin banding at the conjugated portion, or an oral liquid preparation for oral administration.
    Type: Grant
    Filed: September 3, 1998
    Date of Patent: May 16, 2000
    Assignee: Chong Kun Dang Corp.
    Inventors: Chung Il Hong, Jung Woo Kim, Nam Hee Choi, Hee Jong Shin, Su Geun Yang
  • Patent number: 6028067
    Abstract: The present invention relates to a microemulsion preconcentrate composition comprising (1) cyclosporin as an active component; (2) alkyl ester of polycarboxylic acid and/or carboxylic acid ester of polyols as a lipophilic solvent; (3) oil; and (4) surfactant. The composition according to the present invention is characterized in that it dissolves in an external phase such as water, artificial gastric fluid and artificial intestinal fluid by controlling the mixing ratio of the components thereby to get the microemulsion form of inner phase diameter of 100 nm or below. The composition according to the present invention can be formulated as the dosage form of a soft capsule, a hard capsule sealed with a gelatin banding at the conjugated portion, or an oral liquid preparation for oral administration.
    Type: Grant
    Filed: April 27, 1998
    Date of Patent: February 22, 2000
    Assignee: Chong Kun Dang Corp.
    Inventors: Chung Il Hong, Jung Woo Kim, Nam Hee Choi, Hee Jong Shin, Su Geun Yang
  • Patent number: 5874572
    Abstract: A process for the isolation of cyclosporin A comprising the steps of: adding a lower alkanol solvent to a culture fluid of a mutant of Tolypocladium inflatum to form a mixture, filtering the mixture to form an extract, transferring the extract to methylene chloride as a solvent therefor, and column chromatographing the resultant product on silica gel.
    Type: Grant
    Filed: June 16, 1997
    Date of Patent: February 23, 1999
    Assignee: Chong Kun Dang Corp.
    Inventors: Jung Woo Kim, Nam Hee Choi, Sang Chul Lee, Gang Sun Choi, Yun Beom Ham, Don Wha Lee, Kyeong Bok Min
  • Patent number: 5734048
    Abstract: According to the present invention, a process for manufacturing alkali metal salt of clavulanic acid wherein impure clavulanic acid in aqueous solution is extracted by a solvent mixture of ketone and alkyl acetate under acidic condition, treated in a conventional manner, and a solution of alkali metal salt of alkanoic acid dissolved in ketone or alkanol solvent is added to obtain pure alkali metal salt of clavulanic acid is provided.Since the process according to the present invention omits a step of formation of amine salt, an economic and simple method for manufacturing alkali metal salt of clavulanic acid in a high yield without excessive use of solvent is provided.
    Type: Grant
    Filed: November 7, 1995
    Date of Patent: March 31, 1998
    Assignee: Chong Kun Dang Corp.
    Inventors: Jung Woo Kim, Nam Hee Choi, Gang Sun Choi, Don Wha Lee