Patents by Inventor Sang Youb Lee

Sang Youb 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).

  • Patent number: 11312878
    Abstract: Disclosed are an aqueous composition for preparing a hard capsule, a preparation method therefor, a hard capsule, and a method for recycling hard capsule scraps. The disclosed aqueous composition for preparing a hard capsule comprises a water-soluble cellulose ether, an alcohol, and water. In addition, the method for recycling hard capsule scraps comprises the step of dissolving hard capsule scraps comprising a water-soluble cellulose ether into a mixture solution comprising water and an alcohol so as to prepare an aqueous composition for preparing a recycled hard capsule.
    Type: Grant
    Filed: July 4, 2013
    Date of Patent: April 26, 2022
    Assignee: LOTTE FINE CHEMICAL CO., LTD.
    Inventors: Jin Ryul Son, Sang Youb Lee, Jyung Hee Jeon, Sung Hwan Bang, Ju Hee Shin
  • Publication number: 20210076721
    Abstract: Disclosed are a binder composition for bar-shaped solid foods, and a bar-shaped solid food including the binder composition for bar-shaped solid foods. The disclosed binder composition for bar-shaped solid foods includes cellulose ether and saccharides.
    Type: Application
    Filed: March 23, 2018
    Publication date: March 18, 2021
    Applicant: LOTTE FINE CHEMICAL CO., LTD.
    Inventors: Eun Ji Lim, Sang Youb Lee
  • Patent number: 10765668
    Abstract: The present invention relates to: an oral tablet composition comprising amorphous dexlansoprazole, mannitol having an average particle size of 100 to 400 ?m, a disintegrating agent and a lubricant; an oral tablet comprising same; and a method for manufacturing same. The oral tablet composition, according to the present invention, exhibits excellent hardness, has a shortened disintegration time, and at the same time, may be used to provide an oral tablet having improved friability. In addition, according to the present invention, a dry direct compression method is used as the method for manufacturing the oral tablet, and thus an increase in production efficiency by simplifying the production process may be achieved.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: September 8, 2020
    Assignee: LOTTE FINE CHEMICAL CO., LTD.
    Inventors: Kwang Il Shin, Kyung Yeol Park, Sang Youb Lee
  • Publication number: 20200155457
    Abstract: Provided are an oral solid preparation composition, including a proton pump inhibitor or a pharmaceutically acceptable salt thereof; and a binding liquid including a basic additive, wherein a content of the basic additive is 2 to 13 parts by weight based on 100 parts by weight of the proton pump inhibitor or a pharmaceutically acceptable salt thereof; an oral solid preparation including the same; and a method of preparing the same. According to the present disclosure, an oral solid preparation exhibiting a significant reduction in the production of related substances and excellent stability against moisture and low pH is provided.
    Type: Application
    Filed: June 29, 2018
    Publication date: May 21, 2020
    Applicant: LOTTE FINE CHEMICAL CO., LTD.
    Inventors: Kwang Il Shin, Sang Youb Lee
  • Patent number: 10562983
    Abstract: Disclosed are a method for preparing hydroxypropyl methylcellulose acetate succinate (HPMCAS) grains and HPMCAS grains. The disclosed method for preparing HPMCAS grains comprises: a step of esterifying hydroxypropyl methylcellulose (HPMC), acetic anhydride, and succinic anhydride in a reaction medium in the presence of a catalyst so as to obtain a reaction solution containing HPMCAS (esterification step); and a step of continuously or intermittently putting the reaction solution into water so as to form grains (granulating step).
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: February 18, 2020
    Assignee: LOTTE FINE CHEMICAL CO., LTD.
    Inventors: Sung Hwan Bang, Ju Hee Shin, Jin Ryul Son, Kyung Yeol Park, Jeong Hee Chun, Ji Seon Jeong, Sang Youb Lee
  • Publication number: 20190275023
    Abstract: The present invention relates to: an oral tablet composition comprising amorphous dexlansoprazole, mannitol having an average particle size of 100 to 400 ?m, a disintegrating agent and a lubricant; an oral tablet comprising same; and a method for manufacturing same. The oral tablet composition, according to the present invention, exhibits excellent hardness, has a shortened disintegration time, and at the same time, may be used to provide an oral tablet having improved friability. In addition, according to the present invention, a dry direct compression method is used as the method for manufacturing the oral tablet, and thus an increase in production efficiency by simplifying the production process may be achieved.
    Type: Application
    Filed: May 10, 2017
    Publication date: September 12, 2019
    Applicant: LOTTE FINE CHEMICAL CO., LTD.
    Inventors: Kwang Il Shin, Kyung Yeol Park, Sang Youb Lee
  • Patent number: 9750686
    Abstract: The inventive concept relates to a laminated film and a method of laminating films, and the disclosed laminated film includes at least two films sequentially stacked and bonded to each other, wherein each of the films may be each independently a gastric film or an enteric film.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: September 5, 2017
    Assignee: LOTTE FINE CHEMICAL CO., LTD.
    Inventors: Sung Hwan Bang, Kyung Yeol Park, Jin Ryul Son, Jyung Hee Jeon, Ju Hee Shin, Sang Youb Lee
  • Publication number: 20160311932
    Abstract: Disclosed are a method for preparing hydroxypropyl methylcellulose acetate succinate (HPMCAS) grains and HPMCAS grains. The disclosed method for preparing HPMCAS grains comprises: a step of esterifying hydroxypropyl methylcellulose (HPMC), acetic anhydride, and succinic anhydride in a reaction medium in the presence of a catalyst so as to obtain a reaction solution containing HPMCAS (esterification step); and a step of continuously or intermittently putting the reaction solution into water so as to form grains (granulating step).
    Type: Application
    Filed: December 15, 2014
    Publication date: October 27, 2016
    Inventors: Sung Hwan BANG, Ju Hee SHIN, Jin Ryul SON, Kyung Yeol PARK, Jeong Hee CHUN, Ji Seon JEONG, Sang Youb LEE
  • Patent number: 9260575
    Abstract: A film and a method of preparing the same. The film includes cellulose ether and sodium chloride, wherein an amount of the sodium chloride is from about 0.25 wt % to about 0.6 wt % based on a total weight of the film, and the film has a light-transmission reduction ratio of about 15% or less.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: February 16, 2016
    Assignee: SAMSUNG FINE CHEMICALS CO., LTD.
    Inventors: Jin Ryul Son, Sung Hwan Bang, Jyung Hee Jeon, Sang Youb Lee, Ju Hee Shin
  • Publication number: 20150306028
    Abstract: The inventive concept relates to a laminated film and a method of laminating films, and the disclosed laminated film includes at least two films sequentially stacked and bonded to each other, wherein each of the films may be each independently a gastric film or an enteric film.
    Type: Application
    Filed: July 22, 2013
    Publication date: October 29, 2015
    Inventors: Sung Hwan BANG, Kyung Yeol PARK, Jin Ryul SON, Jyung Hee JEON, Ju Hee SHIN, Sang Youb LEE
  • Patent number: 9165893
    Abstract: A semiconductor device is disclosed including a through electrode. The semiconductor device may include a first semiconductor chip including a transceiver circuit formed on a first surface, a first coupling conductive pattern which is formed on a second surface opposite the first surface, and a through electrode which connects the transceiver circuit and the first coupling conductive pattern. There may be a transceiver located on a second semiconductor chip and including a second coupling conductive pattern facing the first coupling conductive pattern which communicates wirelessly with the first coupling conductive pattern.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: October 20, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-Hoon Kim, Jong-Joo Lee, Sang-Youb Lee, Young-Don Choi, Hee-Seok Lee
  • Publication number: 20150197655
    Abstract: Disclosed are an aqueous composition for preparing a hard capsule, a preparation method therefor, a hard capsule, and a method for recycling hard capsule scraps. The disclosed aqueous composition for preparing a hard capsule comprises a water-soluble cellulose ether, an alcohol, and water. In addition, the method for recycling hard capsule scraps comprises the step of dissolving hard capsule scraps comprising a water-soluble cellulose ether into a mixture solution comprising water and an alcohol so as to prepare an aqueous composition for preparing a recycled hard capsule.
    Type: Application
    Filed: July 4, 2013
    Publication date: July 16, 2015
    Applicant: SAMSUNG FINE CHEMICALS CO., LTD.
    Inventors: Jin Ryul Son, Sang Youb Lee, Jyung Hee Jeon, Sung Hwan Bang, Ju Hee Shin
  • Publication number: 20150027343
    Abstract: A film and a method of preparing the same. The film includes cellulose ether and sodium chloride, wherein an amount of the sodium chloride is from about 0.25 wt % to about 0.6 wt % based on a total weight of the film, and the film has a light-transmission reduction ratio of about 15% or less.
    Type: Application
    Filed: August 3, 2012
    Publication date: January 29, 2015
    Applicant: SAMSUNG FINE CHEMICALS CO., LTD.
    Inventors: Jin Ryul Son, Sung Hwan Bang, Jyung Hee Jeon, Sang Youb Lee, Ju Hee Shin
  • Patent number: 8818318
    Abstract: A frequency up and down converter, in which, when down converting a high frequency signal into an intermediate frequency signal or up converting an intermediate frequency signal into a high frequency signal by controlling switching elements using a local oscillator signal, a signal with a frequency to be converted is controlled a number of times during one cycle of the local oscillator signal, whereby the local oscillator signal with a frequency lower than an original frequency may be used. Transistors are added in parallel to switching transistors disposed in a frequency down conversion unit or a frequency up conversion unit, and local oscillator signals with predetermined phases and pulse widths are provided to the gates of the transistors such that a high frequency signal or an intermediate frequency signal is transferred to an output terminal at least two times during one cycle of a local oscillator signal.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: August 26, 2014
    Assignee: I&C Technology Co., Ltd.
    Inventors: Young Jin Kim, Jin Young Lee, Soo Young Huh, Sung Yeong Son, Sang Youb Lee, Jeonghoon Lee, Shin Ill Chang
  • Publication number: 20120299633
    Abstract: A frequency up and down converter, in which, when down converting a high frequency signal into an intermediate frequency signal or up converting an intermediate frequency signal into a high frequency signal by controlling switching elements using a local oscillator signal, a signal with a frequency to be converted is controlled a number of times during one cycle of the local oscillator signal, whereby the local oscillator signal with a frequency lower than an original frequency may be used. Transistors are added in parallel to switching transistors disposed in a frequency down conversion unit or a frequency up conversion unit, and local oscillator signals with predetermined phases and pulse widths are provided to the gates of the transistors such that a high frequency signal or an intermediate frequency signal is transferred to an output terminal at least two times during one cycle of a local oscillator signal.
    Type: Application
    Filed: May 25, 2012
    Publication date: November 29, 2012
    Inventors: Young Jin KIM, Jin Young LEE, Soo Young HUH, Sung Yeong SON, Sang Youb LEE, Jeonghoon LEE, Shin Ill CHANG
  • Patent number: 8159378
    Abstract: An analog-to-digital conversion method using an RC time constant calibrator is provided. The method includes the operations of comparing a crossing time point at which a first reference signal and a second reference signal cross each other with a target time point and calibrating an RC time constant according to a result of the comparison. A length of time until the crossing time point at which a first analog signal and a second analog signal cross each other is counted based on a calibrated RC time constant. The counted value is output.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: April 17, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung Chan Heo, Sang Youb Lee, Ji-Soo Chang
  • Publication number: 20120064827
    Abstract: A semiconductor device is disclosed including a through electrode. The semiconductor device may include a first semiconductor chip including a transceiver circuit formed on a first surface, a first coupling conductive pattern which is formed on a second surface opposite the first surface, and a through electrode which connects the transceiver circuit and the first coupling conductive pattern. There may be a transceiver located on a second semiconductor chip and including a second coupling conductive pattern facing the first coupling conductive pattern which communicates wirelessly with the first coupling conductive pattern.
    Type: Application
    Filed: September 9, 2011
    Publication date: March 15, 2012
    Inventors: Yong-Hoon KIM, Jong-Joo Lee, Sang-Youb Lee, Young-Don Choi, Hee-Seok Lee
  • Patent number: 8112804
    Abstract: A method for dealing with attacks of malicious BOTs in a network security system includes detecting and analyzing a domain name receiving excessive DNS queries to judge the infection of a malicious BOT, registering the corresponding domain name as normal or abnormal management target, and redirecting an abnormal DNS query for the abnormal management target to a redirection processing & response system. Thereby, the automatic detection of malicious BOT attacks and the mechanism which performs the measures and the analysis simultaneously can protect the DNS servers and prevent the security accidents by malicious BOT attacks previously.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: February 7, 2012
    Assignee: KT Corporation
    Inventors: Young Kwan Kwon, Se Man Oh, Sang Youb Lee, Gyu Kweon Han, Ju Hwan Jeong, Seung Tak Oh
  • Publication number: 20100207800
    Abstract: An analog-to-digital conversion method using an RC time constant calibrator is provided. The method includes the operations of comparing a crossing time point at which a first reference signal and a second reference signal cross each other with a target time point and calibrating an RC time constant according to a result of the comparison. A length of time until the crossing time point at which a first analog signal and a second analog signal cross each other is counted based on a calibrated RC time constant. The counted value is output.
    Type: Application
    Filed: February 12, 2010
    Publication date: August 19, 2010
    Inventors: Seung Chan Heo, Sang Youb Lee, Ji-Soo Chang
  • Publication number: 20080155694
    Abstract: A method for dealing with attacks of malicious BOTs in a network security system includes detecting and analyzing a domain name receiving excessive DNS queries to judge the infection of a malicious BOT, registering the corresponding domain name as normal or abnormal management target, and redirecting an abnormal DNS query for the abnormal management target to a redirection processing & response system. Thereby, the automatic detection of malicious BOT attacks and the mechanism which performs the measures and the analysis simultaneously can protect the DNS servers and prevent the security accidents by malicious BOT attacks previously.
    Type: Application
    Filed: January 8, 2008
    Publication date: June 26, 2008
    Applicant: KT CORPORATION
    Inventors: YOUNG KWAN KWON, SE MAN OH, SANG YOUB LEE, GYU KWEON HAN, JU HWAN JEONG, SEUNG TAK OH