Patents by Inventor A Ram Han
A Ram Han 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: 10305827Abstract: Provided is a technique for transmitting and receiving a chat message through a message server. A user transmits and receives a chat message to and from a friend of a first type and receives a chat message from a friend of a second type, and receives various chat messages from a company supporting the friend of the second type.Type: GrantFiled: October 30, 2017Date of Patent: May 28, 2019Assignee: Kakao Corp.Inventors: Seung Hwan Van, Ka Ram Han, Yong Hyun Kim, Sung Hwan Chang
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Patent number: 10196522Abstract: A method of separating oil-soluble pigment and water-soluble pigment from natural material using aerogels characterized in comprising the steps of: (A) immersing a natural material in a leaching solvent to extract a pigment; (B) mixing the leaching solution from which pigment is extracted in step (A) with aerogel to adsorb oil-soluble pigment to aerogels; (C) separating oil-soluble pigment adsorbed on the surface of aerogel in step (B); (D) drying and concentrating the pigment separated in step (C), enhancing a method of separating from natural material the initial substance for pharmaceuticals, food, cosmetics, etc. facilitating a safer and more efficient production process compared to the conventional separation method.Type: GrantFiled: June 20, 2017Date of Patent: February 5, 2019Assignee: ARCA EIR INC.Inventors: Byong Cheol Shin, Bo Ram Han, Su Jin Lim, Hark Mo Seong
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Patent number: 10001937Abstract: A memory device may include: a memory cell array comprising a plurality of search regions, each of the search regions comprising a plurality of group regions, each of the group regions comprising a flag cell, each flag cell comprising information indicating whether the corresponding group region is programmed; a voltage generator suitable for generating a read bias voltage for the memory cell array according to a voltage control signal; and a memory controller suitable for selecting a search region and controlling the voltage generator to adjust the read bias voltage based on information of flag cell of the selected search region when a read command is received, and controlling a read operation for the selected search region based on the adjusted read bias voltage.Type: GrantFiled: March 2, 2017Date of Patent: June 19, 2018Assignee: SK Hynix Inc.Inventors: Won-Jin Jung, Ga-Ram Han, Keun-Woo Lee
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Publication number: 20180142101Abstract: A method of separating oil-soluble pigment and water-soluble pigment from natural material using aerogels characterized in comprising the steps of: (A) immersing a natural material in a leaching solvent to extract a pigment; (B) mixing the leaching solution from which pigment is extracted in step (A) with aerogel to adsorb oil-soluble pigment to aerogels; (C) separating oil-soluble pigment adsorbed on the surface of aerogel in step (B); (D) drying and concentrating the pigment separated in step (C), enhancing a method of separating from natural material the initial substance for pharmaceuticals, food, cosmetics, etc. facilitating a safer and more efficient production process compared to the conventional separation method.Type: ApplicationFiled: June 20, 2017Publication date: May 24, 2018Inventors: Byong Cheol Shin, Bo Ram Han, Su Jin Lim, Hark Mo Seong
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Publication number: 20180063043Abstract: Provided is a technique for transmitting and receiving a chat message through a message server. A user transmits and receives a chat message to and from a friend of a first type and receives a chat message from a friend of a second type, and receives various chat messages from a company supporting the friend of the second type.Type: ApplicationFiled: October 30, 2017Publication date: March 1, 2018Inventors: Seung Hwan VAN, Ka Ram HAN, Yong Hyun KIM, Sung Hwan CHANG
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Publication number: 20180059971Abstract: A memory device may include: a memory cell array comprising a plurality of search regions, each of the search regions comprising a plurality of group regions, each of the group regions comprising a flag cell, each flag cell comprising information indicating whether the corresponding group region is programmed; a voltage generator suitable for generating a read bias voltage for the memory cell array according to a voltage control signal; and a memory controller suitable for selecting a search region and controlling the voltage generator to adjust the read bias voltage based on information of flag cell of the selected search region when a read command is received, and controlling a read operation for the selected search region based on the adjusted read bias voltage.Type: ApplicationFiled: March 2, 2017Publication date: March 1, 2018Inventors: Won-Jin JUNG, Ga-Ram HAN, Keun-Woo LEE
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Patent number: 9807038Abstract: Provided is a technique for transmitting and receiving a chat message through a message server. A user may transmit and receive a chat message to and from a friend of a first type and may receive a chat message from a friend of a second type, and receive various chat messages from a company supporting the friend of the second type.Type: GrantFiled: October 11, 2012Date of Patent: October 31, 2017Assignee: Kakao CorporationInventors: Seung Hwan Van, Ka Ram Han, Yong Hyun Kim, Sung Hwan Chang
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Patent number: 9490403Abstract: Disclosed are a color converting element and a method for manufacturing the color converting element. The disclosed color converting element includes: first wavelength conversion cells spaced apart from one another; and second wavelength conversion cells arranged among the first wavelength conversion cells. The first and second wavelength conversion cells are made of a material containing glass. The color converting element of the disclosed technology is configured in that color converting cells having different color converting characteristics are periodically arranged, when the color converting element is applied to a color converting glass material which may improve thermal and chemical durability of white LEDs, thus minimizing the degradation of efficiency or luminance caused by an interaction between color converting phosphors or active ions and allowing for ease of adjustment of color rendering index.Type: GrantFiled: March 23, 2015Date of Patent: November 8, 2016Inventors: Woon Jin Chung, Ka Ram Han, Yi Kwon Lee
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Patent number: 9211343Abstract: Provided are an siRNA-polymer conjugate, and a method for preparing the same, and more specifically, to a hybrid conjugate formed by covalently bonding siRNA and a polymeric compound for improving the in vivo stability of siRNA, and to a preparation method of the hybrid conjugate. The conjugate of the present invention can improve the in vivo stability of siRNA, thereby achieving an efficient delivery of therapeutic siRNA into cells and exhibiting the activity of siRNA even with a small dose of a relative low concentration. Therefore, the conjugate can advantageously be used as not only an siRNA treatment tool for cancers and other infectious disease, but also a novel type siRNA delivery system.Type: GrantFiled: May 30, 2014Date of Patent: December 15, 2015Assignee: BIONEER CORPORATIONInventors: Bo Ram Han, Han Oh Park, Mi Sik Shin, Sam Young Lee
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Publication number: 20150194579Abstract: Disclosed are a color converting element and a method for manufacturing the color converting element. The disclosed color converting element includes: first wavelength conversion cells spaced apart from one another; and second wavelength conversion cells arranged among the first wavelength conversion cells. The first and second wavelength conversion cells are made of a material containing glass. The color converting element of the disclosed technology is configured in that color converting cells having different color converting characteristics are periodically arranged, when the color converting element is applied to a color converting glass material which may improve thermal and chemical durability of white LEDs, thus minimizing the degradation of efficiency or luminance caused by an interaction between color converting phosphors or active ions and allowing for ease of adjustment of color rendering index.Type: ApplicationFiled: March 23, 2015Publication date: July 9, 2015Inventors: Woon Jin Chung, Ka Ram Han, Yi Kwon Lee
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Publication number: 20140350232Abstract: Provided are an siRNA-polymer conjugate, and a method for preparing the same, and more specifically, to a hybrid conjugate formed by covalently bonding siRNA and a polymeric compound for improving the in vivo stability of siRNA, and to a preparation method of the hybrid conjugate. The conjugate of the present invention can improve the in vivo stability of siRNA, thereby achieving an efficient delivery of therapeutic siRNA into cells and exhibiting the activity of siRNA even with a small dose of a relative low concentration. Therefore, the conjugate can advantageously be used as not only an siRNA treatment tool for cancers and other infectious disease, but also a novel type siRNA delivery system.Type: ApplicationFiled: May 30, 2014Publication date: November 27, 2014Applicant: BIONEER CORPORATIONInventors: Bo Ram Han, Han Oh Park, Mi Sik Shin, Sam Young Lee
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Publication number: 20140350233Abstract: Provided are an siRNA-polymer conjugate, and a method for preparing the same, and more specifically, to a hybrid conjugate formed by covalently bonding siRNA and a polymeric compound for improving the in vivo stability of siRNA, and to a preparation method of the hybrid conjugate. The conjugate of the present invention can improve the in vivo stability of siRNA, thereby achieving an efficient delivery of therapeutic siRNA into cells and exhibiting the activity of siRNA even with a small dose of a relative low concentration. Therefore, the conjugate can advantageously be used as not only an siRNA treatment tool for cancers and other infectious disease, but also a novel type siRNA delivery system.Type: ApplicationFiled: May 30, 2014Publication date: November 27, 2014Applicant: BIONEER CORPORATIONInventors: Bo Ram Han, Han Oh Park, Mi Sik Shin, Sam Young Lee
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Patent number: 8779114Abstract: Provided are an siRNA-polymer conjugate, and a method for preparing the same, and more specifically, to a hybrid conjugate formed by covalently bonding siRNA and a polymeric compound for improving the in vivo stability of siRNA, and to a preparation method of the hybrid conjugate. The conjugate of the present invention can improve the in vivo stability of siRNA, thereby achieving an efficient delivery of therapeutic siRNA into cells and exhibiting the activity of siRNA even with a small dose of a relative low concentration. Therefore, the conjugate can advantageously be used as not only an siRNA treatment tool for cancers and other infectious disease, but also a novel type siRNA delivery system.Type: GrantFiled: May 13, 2010Date of Patent: July 15, 2014Assignee: Bioneer CorporationInventors: Bo Ram Han, Han Oh Park, Mi Sik Shin, Sam Young Lee
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Patent number: 8772472Abstract: Provided are an siRNA-polymer conjugate, and a method for preparing the same, and more specifically, to a hybrid conjugate formed by covalently bonding siRNA and a polymeric compound for improving the in vivo stability of siRNA, and to a preparation method of the hybrid conjugate. The conjugate of the present invention can improve the in vivo stability of siRNA, thereby achieving an efficient delivery of therapeutic siRNA into cells and exhibiting the activity of siRNA even with a small dose of a relative low concentration. Therefore, the conjugate can advantageously be used as not only an siRNA treatment tool for cancers and other infectious disease, but also a novel type siRNA delivery system.Type: GrantFiled: September 13, 2012Date of Patent: July 8, 2014Assignee: Bioneer CorporationInventors: Bo Ram Han, Han Oh Park, Mi Sik Shin, Sam Young Lee
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Publication number: 20140173003Abstract: Provided is a technique for transmitting and receiving a chat message through a message server. A user may transmit and receive a chat message to and from a friend of a first type and may receive a chat message from a friend of a second type, and receive various chat messages from a company supporting the friend of the second type.Type: ApplicationFiled: October 11, 2012Publication date: June 19, 2014Applicant: KAKAO CORP.Inventors: Seung Hwan Van, Ka Ram Han, Yong Hyun Kim, Sung Hwan Chang
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Publication number: 20130096288Abstract: Provided are an siRNA-polymer conjugate, and a method for preparing the same, and more specifically, to a hybrid conjugate formed by covalently bonding siRNA and a polymeric compound for improving the in vivo stability of siRNA, and to a preparation method of the hybrid conjugate. The conjugate of the present invention can improve the in vivo stability of siRNA, thereby achieving an efficient delivery of therapeutic siRNA into cells and exhibiting the activity of siRNA even with a small dose of a relative low concentration. Therefore, the conjugate can advantageously be used as not only an siRNA treatment tool for cancers and other infectious disease, but also a novel type siRNA delivery system.Type: ApplicationFiled: September 13, 2012Publication date: April 18, 2013Applicant: Bioneer CorporationInventors: Bo Ram Han, Han Oh Park, Mi Sik Shin, Sam Young Lee
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Publication number: 20120108803Abstract: Provided are an siRNA-polymer conjugate, and a method for preparing the same, and more specifically, to a hybrid conjugate formed by covalently bonding siRNA and a polymeric compound for improving the in vivo stability of siRNA, and to a preparation method of the hybrid conjugate. The conjugate of the present invention can improve the in vivo stability of siRNA, thereby achieving an efficient delivery of therapeutic siRNA into cells and exhibiting the activity of siRNA even with a small dose of a relative low concentration. Therefore, the conjugate can advantageously be used as not only an siRNA treatment tool for cancers and other infectious disease, but also a novel type siRNA delivery system.Type: ApplicationFiled: May 13, 2010Publication date: May 3, 2012Applicant: BIONEER CORPORATIONInventors: Bo Ram Han, Han Oh Park, Mi Sik Shin, Sam Young Lee
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Patent number: 7851605Abstract: Disclosed is a recombinant vaccine for porcine atrophic rhinitis. A vaccine is provided which uses a Pasteurella multocida (D:4) outer membrane protein H. The vaccine uses a small size of peptides, so that it exhibits a remarkable activity. In addition, it is possible to provide a vaccine that can be applied in the body through a variety of routes.Type: GrantFiled: October 24, 2007Date of Patent: December 14, 2010Assignee: Sungkyunkwan University Foundation for Corporate CollaborationInventors: Moo Sik Kwon, Woo Seok Shin, Bo Ram Han
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Publication number: 20090068217Abstract: Disclosed is a recombinant vaccine for porcine atrophic rhinitis. A vaccine is provided which uses a Pasteurella multocida (D:4) outer membrane protein H. The vaccine uses a small size of peptides, so that it exhibits a remarkable activity. In addition, it is possible to provide a vaccine that can be applied in the body through a variety of routes.Type: ApplicationFiled: October 24, 2007Publication date: March 12, 2009Applicant: SUNGKYUNKWAN UNIVERSITY Foundation for Corporate CollaborationInventors: Moo Sik Kwon, Woo Seok Shin, Bo Ram Han
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Patent number: D941096Type: GrantFiled: December 17, 2020Date of Patent: January 18, 2022Assignee: HWAJIN INDUSTRY CO., LTD.Inventors: A Ram Han, Eun Hee Kim, Jin woog Koo, Su gyeong Yu, Song yi Kim