Patents by Inventor Byung-Goo Lee
Byung-Goo 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: 9328115Abstract: Provided is a process for the preparation of meropenem trihydrate in high purity and high yield, including using a dry methanol solvate of meropenem, which can remarkably reduce the amount of residual solvents in the resulting product, thereby obtain meropenem trihydrate in high purity.Type: GrantFiled: November 21, 2013Date of Patent: May 3, 2016Assignee: DAEWOONG PHARMACEUTICAL CO., LTD.Inventors: Soo-Jin Choi, Byung-Goo Lee, Hee-Kyoon Yoon, Sung-Woo Park, Sun-Ah Jun, Kyung-Ho Lee, Byung-Jo Lim
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Patent number: 9233963Abstract: The present invention relates to an improved method for synthesizing meropenem trihydrate[(1R,5S,6S)-2-[((2?S,4?S)-2?-dimethylaminocarbozyl)pyrrolidin-4?-ylthio]-6-[(R)-1-hydroxyethyl]-1-methylcarbapen-2-em-3-carboxylic acid, trihydrate], which is a novel carbapenem antibiotic.Type: GrantFiled: March 11, 2010Date of Patent: January 12, 2016Assignees: DAEWOONG PHARMACEUTICAL CO., LTD., DAEWOONG BIO, INC.Inventors: Yoon Seok Song, Sung Woo Park, Yeon Jung Yoon, Hee Kyoon Yoon, Seong Cheol Moon, Byung Goo Lee, Soo Jin Choi, Sun Ah Jun
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Publication number: 20150353554Abstract: Provided is a process for the preparation of meropenem trihydrate in high purity and high yield, including using a dry methanol solvate of meropenem, which can remarkably reduce the amount of residual solvents in the resulting product, thereby obtain meropenem trihydrate in high purity.Type: ApplicationFiled: November 21, 2013Publication date: December 10, 2015Applicant: DAEWOONG PHARMACEUTICAL CO., LTD.Inventors: Soo-Jin CHOI, Byung-Goo LEE, Hee-Kyoon YOON, Sung-Woo PARK, Sun-Ah JUN, Kyung-Ho LEE, Byung-Jo LIM
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Patent number: 9169257Abstract: The present invention relates to novel Forms A, B, C, D, E, F and G of crystalline 9-[2-[phosphonomethoxy]ethyl]adenine bis-pivaloyloxymethyl ester, i.e., adefovir dipivoxil, and processes for preparing them. According to the present invention, said novel crystal forms having a high purity can be obtained by a simple method and in a high yield.Type: GrantFiled: March 26, 2010Date of Patent: October 27, 2015Assignees: Daewoong Pharmaceutical Co., Ltd., Daewoong Bio Inc.Inventors: Soo Jin Choi, Byung Goo Lee, Seong Soo Oh, Yong Tae Kim, Kwang Joo Kim, Hye Jin Kim
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Patent number: 9040572Abstract: This invention relates to a method of preparing a benzoimidazole derivative at high purity and high yield so as to enable the production of the benzoimidazole derivative compound as an antagonist against a vanilloid reactor-1, and particularly to a method of preparing a benzoimidazole derivative at high purity and high yield, wherein the benzoimidazole derivative is synthesized using a novel intermediate, namely, benzaldehyde, and thereby the preparation process is simple so that it can be applied to production.Type: GrantFiled: September 27, 2011Date of Patent: May 26, 2015Assignee: Daewoong Pharmaceutical Co., Ltd.Inventors: In Woo Kim, Ji Duck Kim, Hong Chul Yoon, Hee Kyoon Yoon, Byung Goo Lee, Joon Hwan Lee, Young Mook Lim, Soo Jin Choi
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Patent number: 8675270Abstract: The present invention may relate to a scanning micromirror. The scanning micromirror can include a substrate having an open region; a micro plate provided in the open region; a first gimbal provided between the substrate and the mirror plate, and including a first curvature curved toward the mirror plate along an X-axis of the open region; a second gimbal including a second curvature formed along the first curvature of the first gimbal; a first elastic body configured to connect the substrate with the first curvature of the first gimbal; a second elastic body configured to connect the first gimbal with the second gimbal along a Y-axis of the open region; and a third elastic body configured to connect the second gimbal with the mirror plate along the Y-axis of the open region.Type: GrantFiled: August 26, 2010Date of Patent: March 18, 2014Assignee: LG Electronics Inc.Inventors: Dong June Choi, Byung Goo Lee, Tae Sik Kim, Tae Sun Lim
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Patent number: 8541620Abstract: The present invention relates to a method for selectively crystallizing Z isomer of iopromide of formula (I) comprising a) dissolving a crude iopromide comprising a mixture of E and Z isomers or a concentrate thereof in an alcohol, and b) heating the resulting alcohol solution to obtain crystalline of Z isomer of iopromide; and a method for preparing a composition comprising the crystalline Z isomer of iopromide.Type: GrantFiled: October 21, 2009Date of Patent: September 24, 2013Assignee: Daewoong Pharmaceutical Co., Ltd.Inventors: Soo-Jin Choi, Byung-Goo Lee, Han-Kuk Lee, Young-Mook Lim, Wol-Young Kim, Joon-Hwan Lee
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Publication number: 20130231477Abstract: This invention relates to a method of preparing a benzoimidazole derivative at high purity and high yield so as to enable the production of the benzoimidazole derivative compound as an antagonist against a vanilloid reactor-1, and particularly to a method of preparing a benzoimidazole derivative at high purity and high yield, wherein the benzoimidazole derivative is synthesized using a novel intermediate, namely, benzaldehyde, and thereby the preparation process is simple so that it can be applied to production.Type: ApplicationFiled: September 27, 2011Publication date: September 5, 2013Applicant: DAEWOONG PHARMACEUTICAL CO., LTD.Inventors: In Woo Kim, Ji Duck Kim, Hong Chul Yoon, Hee Kyoon Yoon, Byung Goo Lee, Joon Hwan Lee, Young Mook Lim, Soo Jin Choi
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Publication number: 20120250124Abstract: The present invention may relate to a scanning micromirror. The scanning micromirror can include a substrate having an open region; a micro plate provided in the open region; a first gimbal provided between the substrate and the mirror plate, and including a first curvature curved toward the mirror plate along an X-axis of the open region; a second gimbal including a second curvature formed along the first curvature of the first gimbal; a first elastic body configured to connect the substrate with the first curvature of the first gimbal; a second elastic body configured to connect the first gimbal with the second gimbal along a Y-axis of the open region; and a third elastic body configured to connect the second gimbal with the mirror plate along the Y-axis of the open region.Type: ApplicationFiled: August 26, 2010Publication date: October 4, 2012Inventors: Dong June Choi, Byung Goo Lee, Tae Sik Kim, Tae Sun Lim
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Publication number: 20120101273Abstract: The present invention relates to novel Forms A, B, C, D, E, F and G of crystalline 9-[2-[phosphonomethoxy]ethyl]adenine bis-pivaloyloxymethyl ester, i.e., adefovir dipivoxil, and processes for preparing them. According to the present invention, said novel crystal forms having a high purity can be obtained by a simple method and in a high yield.Type: ApplicationFiled: March 26, 2010Publication date: April 26, 2012Applicant: Novel Crystal Forms of Adefovir Dipivoxil and Processes for Preparing the SameInventors: Soo Jin Choi, Byung Goo Lee, Seong Soo Oh, Yong Tae Kim, Kwang Joo Kim, Hye Jin Kim
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Publication number: 20120065392Abstract: The present invention relates to an improved method for synthesizing meropenem trihydrate [(1R,5S,6S)-2-[((2?S,4?S)-2?-dimethylaminocarbozyl)pyrrolidin-4?-ylthio]-6-[(R)-1-hydroxyethyl]-1-methylcarbapen-2-em-3-carboxylic acid, trihydrate], which is a novel carbapenem antibiotic.Type: ApplicationFiled: March 11, 2010Publication date: March 15, 2012Applicants: DAEWOONG BIO INC., DAEWOONG PHARMACEUTICAL CO., LTD.Inventors: Yoon Seok Song, Sung Woo Park, Yeon Jung Yoon, Hee Kyoon Yoon, Seong Cheol Moon, Byung Goo Lee, Soo Jin Choi, Sun Ah Jun
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Publication number: 20110245347Abstract: The present invention relates to a method for selectively crystallizing Z isomer of iopromide of formula (I) comprising a) dissolving a crude iopromide comprising a mixture of E and Z isomers or a concentrate thereof in an alcohol, and b) heating the resulting alcohol solution to obtain crystalline of Z isomer of iopromide; and a method for preparing a composition comprising the crystalline Z isomer of iopromide.Type: ApplicationFiled: October 12, 2009Publication date: October 6, 2011Applicant: DAEWOONG PHARMACEUTICAL CO., LTD.Inventors: Soo-Jin Choi, Byung-Goo Lee, Han-Kuk Lee, Young-Mook Lim, Wol-Young Kim, Joon-Hwan Lee