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).
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Patent number: 11312878Abstract: 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: GrantFiled: July 4, 2013Date of Patent: April 26, 2022Assignee: LOTTE FINE CHEMICAL CO., LTD.Inventors: Jin Ryul Son, Sang Youb Lee, Jyung Hee Jeon, Sung Hwan Bang, Ju Hee Shin
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Publication number: 20210076721Abstract: 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: ApplicationFiled: March 23, 2018Publication date: March 18, 2021Applicant: LOTTE FINE CHEMICAL CO., LTD.Inventors: Eun Ji Lim, Sang Youb Lee
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Patent number: 10765668Abstract: 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: GrantFiled: May 10, 2017Date of Patent: September 8, 2020Assignee: LOTTE FINE CHEMICAL CO., LTD.Inventors: Kwang Il Shin, Kyung Yeol Park, Sang Youb Lee
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Publication number: 20200155457Abstract: 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: ApplicationFiled: June 29, 2018Publication date: May 21, 2020Applicant: LOTTE FINE CHEMICAL CO., LTD.Inventors: Kwang Il Shin, Sang Youb Lee
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Patent number: 10562983Abstract: 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: GrantFiled: December 15, 2014Date of Patent: February 18, 2020Assignee: 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
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Publication number: 20190275023Abstract: 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: ApplicationFiled: May 10, 2017Publication date: September 12, 2019Applicant: LOTTE FINE CHEMICAL CO., LTD.Inventors: Kwang Il Shin, Kyung Yeol Park, Sang Youb Lee
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Patent number: 9750686Abstract: 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: GrantFiled: July 22, 2013Date of Patent: September 5, 2017Assignee: LOTTE FINE CHEMICAL CO., LTD.Inventors: Sung Hwan Bang, Kyung Yeol Park, Jin Ryul Son, Jyung Hee Jeon, Ju Hee Shin, Sang Youb Lee
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Publication number: 20160311932Abstract: 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: ApplicationFiled: December 15, 2014Publication date: October 27, 2016Inventors: Sung Hwan BANG, Ju Hee SHIN, Jin Ryul SON, Kyung Yeol PARK, Jeong Hee CHUN, Ji Seon JEONG, Sang Youb LEE
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Patent number: 9260575Abstract: 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: GrantFiled: August 3, 2012Date of Patent: February 16, 2016Assignee: SAMSUNG FINE CHEMICALS CO., LTD.Inventors: Jin Ryul Son, Sung Hwan Bang, Jyung Hee Jeon, Sang Youb Lee, Ju Hee Shin
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Publication number: 20150306028Abstract: 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: ApplicationFiled: July 22, 2013Publication date: October 29, 2015Inventors: Sung Hwan BANG, Kyung Yeol PARK, Jin Ryul SON, Jyung Hee JEON, Ju Hee SHIN, Sang Youb LEE
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Patent number: 9165893Abstract: 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: GrantFiled: September 9, 2011Date of Patent: October 20, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Yong-Hoon Kim, Jong-Joo Lee, Sang-Youb Lee, Young-Don Choi, Hee-Seok Lee
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Publication number: 20150197655Abstract: 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: ApplicationFiled: July 4, 2013Publication date: July 16, 2015Applicant: SAMSUNG FINE CHEMICALS CO., LTD.Inventors: Jin Ryul Son, Sang Youb Lee, Jyung Hee Jeon, Sung Hwan Bang, Ju Hee Shin
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Publication number: 20150027343Abstract: 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: ApplicationFiled: August 3, 2012Publication date: January 29, 2015Applicant: SAMSUNG FINE CHEMICALS CO., LTD.Inventors: Jin Ryul Son, Sung Hwan Bang, Jyung Hee Jeon, Sang Youb Lee, Ju Hee Shin
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Patent number: 8818318Abstract: 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: GrantFiled: May 25, 2012Date of Patent: August 26, 2014Assignee: 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
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Publication number: 20120299633Abstract: 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: ApplicationFiled: May 25, 2012Publication date: November 29, 2012Inventors: Young Jin KIM, Jin Young LEE, Soo Young HUH, Sung Yeong SON, Sang Youb LEE, Jeonghoon LEE, Shin Ill CHANG
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Patent number: 8159378Abstract: 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: GrantFiled: February 12, 2010Date of Patent: April 17, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Seung Chan Heo, Sang Youb Lee, Ji-Soo Chang
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Publication number: 20120064827Abstract: 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: ApplicationFiled: September 9, 2011Publication date: March 15, 2012Inventors: Yong-Hoon KIM, Jong-Joo Lee, Sang-Youb Lee, Young-Don Choi, Hee-Seok Lee
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Patent number: 8112804Abstract: 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: GrantFiled: January 8, 2008Date of Patent: February 7, 2012Assignee: KT CorporationInventors: Young Kwan Kwon, Se Man Oh, Sang Youb Lee, Gyu Kweon Han, Ju Hwan Jeong, Seung Tak Oh
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Publication number: 20100207800Abstract: 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: ApplicationFiled: February 12, 2010Publication date: August 19, 2010Inventors: Seung Chan Heo, Sang Youb Lee, Ji-Soo Chang
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Publication number: 20080155694Abstract: 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: ApplicationFiled: January 8, 2008Publication date: June 26, 2008Applicant: KT CORPORATIONInventors: YOUNG KWAN KWON, SE MAN OH, SANG YOUB LEE, GYU KWEON HAN, JU HWAN JEONG, SEUNG TAK OH