Patents by Inventor Byeong-No Lee
Byeong-No 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: 10201811Abstract: The present invention relates to a method for manufacturing a module type microfluidic chip comprising: (a) printing electrode patterns on a substrate using a conductive ink and inkjet printing; (b) cutting the printed electrode patterns; and (c) assembling the cut electrode patterns to manufacture the module type microfluidic paper chip. Unlike the traditional method for manufacturing printed circuit substrate using a patterning agent or device, the method of the present invention only incorporates a simple printing process using an inkjet printer, and thus patterning can be simplified and various types of chips can be manufactured depending on the assembly type of electrode patterns. Accordingly, inexpensive, economical, and highly utilizable microfluidic chips can be provided using the method of the present invention.Type: GrantFiled: May 2, 2013Date of Patent: February 12, 2019Assignee: Industry-University Cooperation Foundation Sogang UniversityInventors: Kwan Woo Shin, Hyo Jin Ko, Oh-Sun Kwon, Jae Hak Choi, Byeong No Lee, Ju Mi Lee
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Patent number: 9469603Abstract: The present invention relates to the synthesis of a novel compound, in which liquid hydrazine and the derivatives thereof react with excess carbon dioxide to enable the carbon dioxide to chemically bond to the hydrazine and the derivatives thereof. To this end, high-pressure carbon dioxide is used to synthesize hydrazine and the derivatives thereof to which the carbon dioxide is bonded in a pure form with no water and no by-product. Furthermore, the present invention provides a method for utilizing the above-described compounds by reacting the compounds with carbonyl compounds.Type: GrantFiled: September 12, 2014Date of Patent: October 18, 2016Assignee: Sogang University Research FoundationInventors: Nam Hwi Hur, Byeong No Lee
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Patent number: 9346772Abstract: The present application relates to a preparation method for solid powder of a carbamic acid derivative, which includes reacting an amine derivative with carbon dioxide at a temperature in a range of from about ?30° C. to about 500° C. and at a pressure in a range of from about 0.3 MPa to about 100 MPa. In addition, the present disclosure relates to a reduction method for solid powder of a carbamic acid derivative to an amine derivative and carbon dioxide, which includes dissolving solid powder of the carbamic acid derivative prepared in a solvent; refluxing the carbamic acid derivative at a temperature in a range of from about 30° C. to about 100° C.; and evaporating the solvent.Type: GrantFiled: August 11, 2015Date of Patent: May 24, 2016Assignee: Sogang University Research FoundationInventors: Nam Hwi Hur, Byeong No Lee
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Publication number: 20150344451Abstract: The present application relates to a preparation method for solid powder of a carbamic acid derivative, which includes reacting an amine derivative with carbon dioxide at a temperature in a range of from about ?30° C. to about 500° C. and at a pressure in a range of from about 0.3 MPa to about 100 MPa. In addition, the present disclosure relates to a reduction method for solid powder of a carbamic acid derivative to an amine derivative and carbon dioxide, which includes dissolving solid powder of the carbamic acid derivative prepared in a solvent; refluxing the carbamic acid derivative at a temperature in a range of from about 30° C. to about 100° C.; and evaporating the solvent.Type: ApplicationFiled: August 11, 2015Publication date: December 3, 2015Inventors: Nam Hwi HUR, Byeong No LEE
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Patent number: 9126903Abstract: The present application relates to a preparation method for solid powder of a carbamic acid derivative, which includes reacting an amine derivative with carbon dioxide at a temperature in a range of from about ?30° C. to about 500° C. and at a pressure in a range of from about 0.3 MPa to about 100 MPa. In addition, the present disclosure relates to a reduction method for solid powder of a carbamic acid derivative to an amine derivative and carbon dioxide, which includes dissolving solid powder of the carbamic acid derivative prepared in a solvent; refluxing the carbamic acid derivative at a temperature in a range of from about 30° C. to about 100° C.; and evaporating the solvent.Type: GrantFiled: December 11, 2014Date of Patent: September 8, 2015Assignee: Sogang University Research FoundationInventors: Nam Hwi Hur, Byeong No Lee
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Patent number: 9079829Abstract: The present disclosure relates to a method of preparing powder of a solid carbazic acid derivative, which involves inducing a reaction of a liquid hydrazine derivative with carbon dioxide at a high pressure of from about 0.5 MPa to about 100 MPa. During the reaction, the pressure may range from about 0.5 MPa to about 100 MPa. In this regard, although the reaction of the carbon dioxide with the liquid hydrazine derivative occurs when the pressure is adjusted to below than about 0.5 MPa, sticky precipitates in a form of gel are gradually produced but the powder is not produced.Type: GrantFiled: June 27, 2013Date of Patent: July 14, 2015Assignee: Sogang University Research FoundationInventors: Nam Hwi Hur, Byeong No Lee
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Publication number: 20150110689Abstract: The present invention relates to a method for manufacturing a module type microfluidic chip comprising: (a) printing electrode patterns on a substrate using a conductive ink and inkjet printing; (b) cutting the printed electrode patterns; and (c) assembling the cut electrode patterns to manufacture the module type microfluidic paper chip. Unlike the traditional method for manufacturing printed circuit substrate using a patterning agent or device, the method of the present invention only incorporates a simple printing process using an inkjet printer, and thus patterning can be simplified and various types of chips can be manufactured depending on the assembly type of electrode patterns. Accordingly, inexpensive, economical, and highly utilizable microfluidic chips can be provided using the method of the present invention.Type: ApplicationFiled: May 2, 2013Publication date: April 23, 2015Applicant: Industry-University Cooperation Foundation Sogang UniversityInventors: Kwan Woo Shin, Hyo Jin Ko, Oh-Sun Kwon, Han-Su Kim, Jae Hak Choi, Byeong No Lee, Ju Mi Lee
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Publication number: 20150099886Abstract: The present application relates to a preparation method for solid powder of a carbamic acid derivative, which includes reacting an amine derivative with carbon dioxide at a temperature in a range of from about ?30° C. to about 500° C. and at a pressure in a range of from about 0.3 MPa to about 100 MPa. In addition, the present disclosure relates to a reduction method for solid powder of a carbamic acid derivative to an amine derivative and carbon dioxide, which includes dissolving solid powder of the carbamic acid derivative prepared in a solvent; refluxing the carbamic acid derivative at a temperature in a range of from about 30° C. to about 100° C.; and evaporating the solvent.Type: ApplicationFiled: December 11, 2014Publication date: April 9, 2015Inventors: Nam Hwi HUR, Byeong No LEE
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Publication number: 20150094490Abstract: The present invention relates to the synthesis of a novel compound, in which liquid hydrazine and the derivatives thereof react with excess carbon dioxide to enable the carbon dioxide to chemically bond to the hydrazine and the derivatives thereof. To this end, high-pressure carbon dioxide is used to synthesize hydrazine and the derivatives thereof to which the carbon dioxide is bonded in a pure form with no water and no by-product. Furthermore, the present invention provides a method for utilizing the above-described compounds by reacting the compounds with carbonyl compounds.Type: ApplicationFiled: September 12, 2014Publication date: April 2, 2015Inventors: Nam Hwi Hur, Byeong No Lee
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Publication number: 20140225534Abstract: A radiotherapy apparatus includes a beam irradiation head (10), a linear accelerating means (20) provided at the beam irradiation head (10), a robot arm (30) connected with the beam irradiation head (10) and having a plurality of joints, a waveguide (40) built in the robot arm 30 and connected with the linear accelerating means (20), and an electromagnetic wave oscillator (50) disposed outside the robot arm (30) and generating electromagnetic waves so that the electromagnetic waves are propagated to the linear accelerating means (20) through the waveguide (40).Type: ApplicationFiled: February 12, 2014Publication date: August 14, 2014Applicant: Korea Atomic Energy Research InstituteInventors: Byung Cheol Lee, Byeong-No Lee, Seungho Kim, Kyung-min Jeong, JongSeo Chai, Ki Baek Song, Hyung Dal Park, SeungWook Shin, SeungHyun Lee, JongChul LEE
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Publication number: 20140051858Abstract: The present disclosure relates to a preparation method for powder of a carbamic acid derivative, which includes reacting a liquid amine derivative with carbon dioxide at a temperature in a range of from about ?30° C. to about 500° C. at a pressure in a range of from about 0.3 MPa to about 100 MPa. In addition, the present disclosure relates to a reduction method for powder of a carbamic acid derivative to a liquid amine derivative and carbon dioxide, which includes dissolving powder of the carbamic acid derivative prepared in a solvent; refluxing the carbamic acid derivative at a temperature in a range of from about 30° C. to about 100° C.; and evaporating the solvent.Type: ApplicationFiled: August 14, 2013Publication date: February 20, 2014Applicant: Sogang University Research FoundationInventors: Nam Hwi HUR, Byeong No LEE
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Publication number: 20140018573Abstract: The present disclosure relates to a method of preparing powder of a solid carbazic acid derivative, which involves inducing a reaction of a liquid hydrazine derivative with carbon dioxide at a high pressure of from about 0.5 MPa to about 100 MPa. During the reaction, the pressure may range from about 0.5 MPa to about 100 MPa. In this regard, although the reaction of the carbon dioxide with the liquid hydrazine derivative occurs when the pressure is adjusted to below than about 0.5 MPa, sticky precipitates in a form of gel are gradually produced but the powder is not produced.Type: ApplicationFiled: June 27, 2013Publication date: January 16, 2014Inventors: Nam Hwi HUR, Byeong No LEE
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Patent number: 6617478Abstract: A process for preparing a 1,3-alkandiol from a 3-hydroxyester, comprises preparing a catalyst by adding an alkaline precipitator to an aqueous copper salt solution to form copper hydroxide particles, and aging the particles following the addition of a colloidal silica thereto; activating the catalyst by reduction with a H2 gas or a H2-containing gas and applying a pressure of about 5 psig to about 2000 psig at a temperature of about 100° C. to about 250° C. in the presence of an activation solvent; and hydrogenating a 3-hydroxyester in a liquid phase slurry with a H2 gas or a H2-containing gas and applying a pressure of about 50 psig to about 3000 psig at a temperature of about 100° C. to about 250° C. in the presence of the activated catalyst and a reaction solvent, whereby a 1,3-alkanediol can be selectively prepared from a 3-hydroxyester with a high yield.Type: GrantFiled: August 6, 2002Date of Patent: September 9, 2003Assignees: Samsung Electronics Co., Ltd., Korea Research Institute of Chemical TechnologyInventors: Byeong No Lee, In Sun Jung, Eun Joo Jang, Jung Ho Lee, Hyung Rok Kim, Yo Han Han
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Patent number: 6617477Abstract: A process for preparing an 1,3-alkanediol from a 3-hydroxyester includes hydrogenating a 3-hydroxyester in an alcohol-containing solvent in the presence of a hydrogenation catalyst prepared by adding an alkaline precipitator to an aqueous solution containing a copper salt to form particles, and then aging the particles following addition of colloidal silica thereto. Novel hydrogenation catalysts so prepared are also disclosed.Type: GrantFiled: November 29, 2001Date of Patent: September 9, 2003Assignees: Samsung Electronics Co., Ltd., Korea Research Institute of Chemical TechnologyInventors: Byeong No Lee, Eun Joo Jang, Jung Ho Lee, Hyung Rok Kim, Yo Han Han, Hyun Kwan Shin, Ho Sun Lee
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Patent number: 6600065Abstract: Disclosed herein is a novel process for preparing 3-hydroxyesters, comprising: (a) reacting an epoxide derivative with carbon monoxide and alcohol in a solvent at a temperature of 30˜150° C. under a pressure of 50˜3000 psig by using a catalyst system consisting of a catalytic amount of a cobalt compound and optionally an effective amount of a promoter to produce a 3-hydroxyester or a derivative thereof; (b) separating the resulting product and the solvent from the cobalt compound and the promoter in a stripping column at a temperature of −30˜200° C. in an atmosphere of a stabilizing gas; and (c) recycling a part or all of the separated cobalt compound and promoter to the step (a) and repeating the steps (a) through (c).Type: GrantFiled: October 17, 2002Date of Patent: July 29, 2003Assignee: Davy Process Technology Ltd.Inventors: Byeong No Lee, Eun Joo Jang, Hyung Soo Cho, Byung Soon Chun
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Publication number: 20030109744Abstract: Disclosed herein is a novel process for preparing 3-hydroxyesters, comprising: (a) reacting an epoxide derivative with carbon monoxide and alcohol in a solvent at a temperature of 30˜150° C. under a pressure of 50˜3000 psig by using a catalyst system consisting of a catalytic amount of a cobalt compound and optionally an effective amount of a promoter to produce a 3-hydroxyester or a derivative thereof; (b) separating the resulting product and the solvent from the cobalt compound and the promoter in a stripping column at a temperature of −30˜200° C. in an atmosphere of a stabilizing gas; and (c) recycling a part or all of the separated cobalt compound and promoter to the step (a) and repeating the steps (a) through (c).Type: ApplicationFiled: October 17, 2002Publication date: June 12, 2003Inventors: Byeong No Lee, Eun Joo Jang, Hyung Soo Cho, Byung Soon Chun
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Publication number: 20030069456Abstract: A process for preparing a 1,3-alkandiol from a 3-hydroxyester, comprises preparing a catalyst by adding an alkaline precipitator to an aqueous copper salt solution to form copper hydroxide particles, and aging the particles following the addition of a colloidal silica thereto; activating the catalyst by reduction with a H2 gas or a H2-containing gas and applying a pressure of about 5 psig to about 2000 psig at a temperature of about 100° C. to about 250° C. in the presence of an activation solvent; and hydrogenating a 3-hydroxyester in a liquid phase slurry with a H2 gas or a H2-containing gas and applying a pressure of about 50 psig to about 3000 psig at a temperature of about 100° C. to about 250° C. in the presence of the activated catalyst and a reaction solvent, whereby a 1,3-alkanediol can be selectively prepared from a 3-hydroxyester with a high yield.Type: ApplicationFiled: August 6, 2002Publication date: April 10, 2003Applicant: Samsung Electronics Co., Ltd. andInventors: Byeong No Lee, In Sun Jung, Eun Joo Jang, Jung Ho Lee, Hyung Rok Kim, Yo Han Han
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Patent number: 6541414Abstract: A process for preparing an 1,3-alkanediol through carbonylation of an epoxide derivative includes the steps of (a) reacting an epoxide derivative with alcohol and carbon monoxide in a solvent at a temperature from about 30 to about 150° C. and at a pressure from about 50 to about 3000 psig in the presence of a catalyst system including an effective amount of a cobalt catalyst and an effective amount of a promoter to afford a reaction mixture including a 3-hydroxyester or derivative thereof in an amount of from 2 to about 95% by weight, (b) separating the reaction product and solvent from the catalyst and promoter, (c) reacting said reaction product and solvent with hydrogen at a temperature from about 30 to about 350° C. and at a pressure from about 50 to about 5000 psig in the presence of a catalyst system for hydrogenation to prepare a hydrogenation product mixture including a 1,3-alkanediol, and (d) recovering the 1,3-alkanediol from the hydrogenation product mixture.Type: GrantFiled: January 16, 2002Date of Patent: April 1, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Byeong-No Lee, Byung-Soon Chen
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Patent number: 6521801Abstract: A process for preparing an 1,3-alkanediol through carbonylation of an epoxide derivative includes the steps of (a) reacting an epoxide derivative with alcohol and carbon monoxide in a solvent at a temperature from about 30 to about 150° C. and at a pressure from about 50 to about 3000 psig in the presence of a catalyst system including an effective amount of a cobalt catalyst and an effective amount of a promoter to afford a reaction mixture including a 3-hydroxyester or derivative thereof in an amount of from 2 to about 95% by weight, (b) separating the reaction product and solvent from the catalyst and promoter, (c) reacting said reaction product and solvent with hydrogen at a temperature from about 30 to about 350° C. and at a pressure from about 50 to about 5000 psig in the presence of a catalyst system for hydrogenation to prepare a hydrogenation product mixture including a 1,3-alkanediol, and (d) recovering the 1,3-alkanediol from the hydrogenation product mixture.Type: GrantFiled: December 7, 2001Date of Patent: February 18, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Byeong-No Lee, Byung-Soon Chen
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Publication number: 20020161268Abstract: A process for preparing an 1,3-alkanediol from a 3-hydroxyester includes hydrogenating a 3-hydroxyester in an alcohol-containing solvent in the presence of a hydrogenation catalyst prepared by adding an alkaline precipitator to an aqueous solution containing a copper salt to form particles, and then aging the particles following addition of colloidal silica thereto. Novel hydrogenation catalysts so prepared are also disclosed.Type: ApplicationFiled: November 29, 2001Publication date: October 31, 2002Inventors: Byeong No Lee, Eun Joo Jang, Jung Ho Lee, Hyung Rok Kim, Yo Han Han, Hyun Kwan Shin, Ho Sun Lee