Patents by Inventor Jae Duk Park
Jae Duk Park 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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Publication number: 20240153563Abstract: A semiconductor memory device includes a source layer, a channel structure, gate electrodes on the source layer and spaced apart on a sidewall of the channel structure, and a common source line. The gate electrodes include a first word line group including first and second gate electrodes and a second word line group including third and fourth gate electrodes. The semiconductor memory device, in response to a voltage of the common source line reaching a target voltage, causes an inhibition voltage to be applied to the second word line group and an erase voltage to be applied to the first word line group in a first erase operation interval, and causes the inhibition voltage to be applied to the first word line group and the erase voltage to be applied to the second word line group in a second erase operation interval.Type: ApplicationFiled: December 19, 2023Publication date: May 9, 2024Applicant: Samsung Electronics Co., Ltd.Inventors: Hye Ji LEE, Jin-Kyu KANG, Rae Young LEE, Se Jun PARK, Jae Duk LEE, Gu Yeon HAN
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Patent number: 9711823Abstract: An electrolyte includes an eutectic mixture composed of (a) a hetero cyclic compound having a predetermined chemistry figure, and (b) an ionizable lithium salt. An electrochemical device having the electrolyte. The eutectic mixture included in the electrolyte exhibits inherent characteristics of an eutectic mixture such as excellent thermal stability and excellent chemical stability, thereby improving the problems such as evaporation, ignition and side reaction of an electrolyte caused by the usage of existing organic solvents.Type: GrantFiled: May 2, 2014Date of Patent: July 18, 2017Assignee: LG Chem, Ltd.Inventors: Byoung-Bae Lee, Jae-Seung Oh, Ji-Won Park, Shin-Jung Choi, Jae-Duk Park, Dong-Su Kim, Hyo-Jin Lee
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Patent number: 9059477Abstract: A secondary battery comprising a cathode, an anode, a separator and an electrolyte that comprises a eutectic mixture formed of: an amide group-containing compound, and an ionizable lithium salt. The anode comprises a metal or metal oxide having a potential vs. lithium potential (Li/Li+) within electrochemical window of the eutectic mixture. Because the secondary battery uses a eutectic mixture as an electrolyte in combination with an anode having a potential vs. lithium potential (Li/Li+) within the electrochemical window of the eutectic mixture, problems such as decomposition of an electrolyte and degradation of the quality of a battery are avoided. Also, due to the thermal and chemical stability, high conductivity and a broad electrochemical window of a eutectic mixture, it is possible to improve the quality as well as safety of a battery.Type: GrantFiled: October 26, 2006Date of Patent: June 16, 2015Assignee: LG CHEM, LTD.Inventors: Jae Seung Oh, Shin Jung Choi, Byoung Bae Lee, Jae Duk Park, Ji Won Park
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Patent number: 9017879Abstract: An electrolyte includes a eutectic mixture comprising (a) an alkoxy alkyl group-containing amide compound having a specific chemistry formula 1 or 2: wherein each of X, R, R1, R2, m and n is defined; and (b) an ionizable lithium salt. The eutectic mixture-containing electrolyte exhibits excellent high temperature stability as well as inherent characteristics of eutectic mixtures, including excellent thermal and chemical stability, thus contributing to improved high temperature stability and decreased lowest limit of electrochemical window. The electrolyte is useful in electrochemical devices comprising various anode materials.Type: GrantFiled: January 9, 2009Date of Patent: April 28, 2015Assignee: LG Chem, Ltd.Inventors: Ji-Won Park, Byoung-Bae Lee, Jae-Seung Oh, Shin-Jung Choi, Jae-Duk Park, Dong-Su Kim, Hyo-Jin Lee
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Publication number: 20140342239Abstract: An electrolyte includes an eutectic mixture composed of (a) a hetero cyclic compound having a predetermined chemistry figure, and (b) an ionizable lithium salt. An electrochemical device having the electrolyte. The eutectic mixture included in the electrolyte exhibits inherent characteristics of an eutectic mixture such as excellent thermal stability and excellent chemical stability, thereby improving the problems such as evaporation, ignition and side reaction of an electrolyte caused by the usage of existing organic solvents.Type: ApplicationFiled: May 2, 2014Publication date: November 20, 2014Applicant: LG CHEM, LTD.Inventors: Byoung-Bae Lee, Jae-Seung Oh, Ji-Won Park, Shin-Jung Choi, Jae-Duk Park, Dong-Su Kim, Hyo-Jin Lee
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Patent number: 8858837Abstract: Disclosed is an electrolyte comprising a eutectic mixture formed of: (a) an amide group-containing compound; and (b) a lithum-free ionizable salt. An electrochemical device comprising the electrolyte is also disclosed. The electrolyte improves the quality of and electrochemical device due to the excellent conductivity of the metal cation contained in the eutectic mixture, a broad electrochemical window and low viscosity. Additionally, since the eutectic mixture has excellent thermal and chemical stability, it is possible to solve the problems of evaporation, exhaustion and ignition of electrolytes, to minimize side reactions between constitutional elements of the device and the electrolyte, and to improve the safety of the electrochemical device.Type: GrantFiled: August 18, 2006Date of Patent: October 14, 2014Assignee: LG Chem, Ltd.Inventors: Jae Seung Oh, Byoung Bae Lee, Jae Duk Park, Ji Won Park
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Patent number: 8808924Abstract: Disclosed is an electrolyte for a secondary battery, comprising an eutectic mixture consisting of: (a) am amide group-containing compound with at least one EDG introduced into the N-position thereof; and (b) an ionizable lithium salt. Also, provided are a secondary battery comprising such an electrolyte, and a method of adjusting an electrochemical stability window of an eutectic mixture consisting of an amide group-containing compound and a lithium salt by regulating electron donating properties of at least one substituent group introduced into the N-position of the amide group-containing compound.Type: GrantFiled: January 16, 2008Date of Patent: August 19, 2014Assignee: LG Chem, Ltd.Inventors: Byoung-Bae Lee, Shin-Jung Choi, Jae-Seung Oh, Ji-Won Park, Young-Kyu Han, Jae-Hoon Jung, Jae-Duk Park
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Patent number: 8715866Abstract: An electrolyte includes an eutectic mixture composed of (a) a hetero cyclic compound having a predetermined chemistry figure, and (b) an ionizable lithium salt. An electrochemical device having the electrolyte. The eutectic mixture included in the electrolyte exhibits inherent characteristics of an eutectic mixture such as excellent thermal stability and excellent chemical stability, thereby improving the problems such as evaporation, ignition and side reaction of an electrolyte caused by the usage of existing organic solvents.Type: GrantFiled: December 30, 2008Date of Patent: May 6, 2014Assignee: LG Chem, Ltd.Inventors: Byoung-Bae Lee, Jae-Seung Oh, Ji-Won Park, Shin-Jung Choi, Jae-Duk Park, Dong-Su Kim, Hyo-Jin Lee
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Publication number: 20110052999Abstract: An electrolyte includes an eutectic mixture composed of (a) a hetero cyclic compound having a predetermined chemistry figure, and (b) an ionizable lithium salt. An electrochemical device having the electrolyte. The eutectic mixture included in the electrolyte exhibits inherent characteristics of an eutectic mixture such as excellent thermal stability and excellent chemical stability, thereby improving the problems such as evaporation, ignition and side reaction of an electrolyte caused by the usage of existing organic solvents.Type: ApplicationFiled: December 30, 2008Publication date: March 3, 2011Applicant: LG CHEM, LTD.Inventors: Byoung-Bae Lee, Jae-Seung Oh, Ji-Won Park, Shin-Jung Choi, Jae-Duk Park, Dong-Su Kim, Hyo-Jin Lee
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Publication number: 20110014523Abstract: An electrolyte includes a eutectic mixture composed of (a) an alkoxy alkyl group-containing amide compound having a specific chemistry formula; and (b) an ionizable lithium salt. The eutectic mixture contained in the electrolyte has excellent high temperature stability as well as inherent characteristics of eutectic mixtures such as excellent thermal stability and excellent chemical stability, so it contributes to improvement of high temperature stability and decrease the lowest limit of a electrochemical window. Thus, the electrolyte may be usefully applied to electrochemical devices using various anode materials.Type: ApplicationFiled: January 9, 2009Publication date: January 20, 2011Applicant: LG CHEM, LTD.Inventors: Ji-Won Park, Byoung-Bae Lee, Jae-Seung Oh, Shin-Jung Choi, Jae-Duk Park, Dong-Su Kim, Hyo-Jin Lee
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Publication number: 20100239917Abstract: Disclosed is an electrolyte for a secondary battery, comprising an eutectic mixture consisting of: (a) am amide group-containing compound with at least one EDG introduced into the N-position thereof; and (b) an ionizable lithium salt. Also, provided are a secondary battery comprising such an electrolyte, and a method of adjusting an electrochemical stability window of an eutectic mixture consisting of an amide group-containing compound and a lithium salt by regulating electron donating properties of at least one substituent group introduced into the N-position of the amide group-containing compound.Type: ApplicationFiled: January 16, 2008Publication date: September 23, 2010Applicant: LG CHEM, LTD.Inventors: Byoung-Bae Lee, Shin-Jung Choi, Jae-Seung Oh, Ji-Won Park, Young-Kyu Han, Jae-Hoon Jung, Jae-Duk Park
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Publication number: 20100021815Abstract: Disclosed is a secondary battery comprising a cathode, an anode, a separator and an electrolyte, wherein the electrolyte comprises: (a) a eutectic mixture; and (b) a first compound reduced at a higher potential vs. lithium potential (Li/Li+) than the lowest limit of the electrochemical window of the eutectic mixture. The electrolyte uses a eutectic mixture in combination with an additive reduced in advance of the eutectic mixture upon the initial charge to form a solid electrolyte interface (SEI) layer. Therefore, the electrolyte can solve the problem of electrolyte decomposition occurring when using a eutectic mixture alone as an electrolyte for a battery, and thus can prevent degradation of the quality of a battery.Type: ApplicationFiled: July 26, 2007Publication date: January 28, 2010Applicant: LG Chem, Ltd.Inventors: Jae-Seung Oh, Byoung-Bae Lee, Ji-Won Park, Shin-Jung Choi, Jae-Duk Park
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Patent number: 7630117Abstract: Disclosed is an electrolyte for electrochromic devices, which includes a eutectic mixture comprising: (a) a compound having an acidic functional group and basic functional group; and (b) an ionizable lithium salt. An electrochromic device using the same electrolyte is also disclosed. Because the electrochromic device uses the electrolyte comprising the eutectic mixture, which is cost-efficient and has excellent thermal and chemical stability, there are no problems related with evaporation and exhaustion as well as flammability of electrolyte. Additionally, it is possible to minimize side reactions with constitutional elements of an electrochromic device and electrolyte, thereby improving the safety. Further, it is also possible to improve the quality of an electrochromic device by virtue of a broad electrochemical window and high electroconductivity of the eutectic mixture.Type: GrantFiled: September 20, 2005Date of Patent: December 8, 2009Assignee: LG Chem, Ltd.Inventors: Jae Seung Oh, Byoung Bae Lee, Jae Duk Park, Su Jin Mun
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Patent number: 7564611Abstract: The present invention provides A method for preparing an electrode containing lithium nickel oxide wherein nickel has a single oxidation number, which comprises the following steps: a) preparing an electrode containing the lithium nickel oxide (LixNi1?yO, 0.4<x<1, 0<y<1) layer formed on the conductive substrate; and b) applying oxidative voltage to the electrode, and then applying reductive voltage thereto, an electrode prepared by the method and an electrochromic device containing the same. The electrode containing the lithium nickel oxide layer of the present invention exhibits wider optical electrochromic range and fast reaction speed, so that it can contribute to improving electrochromism and other optical properties of an electrochromic device.Type: GrantFiled: January 9, 2007Date of Patent: July 21, 2009Assignee: LG Chem, Ltd.Inventors: Ki Seok Jang, Jae Duk Park, Jae Seung Oh, Jin Young Park, Shin Jung Choi, Won Jong Kwon, Byoung Bae Lee
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Patent number: 7411716Abstract: Disclosed is an electrochromic device comprising: (a) a first electrode; (b) a second electrode; (c) an electrochromic material; and (d) a gel polymer electrolyte containing an ionic liquid. A method for manufacturing the same is also disclosed. The electrochromic device uses a gel polymer electrolyte comprising an ionic liquid. Therefore, there is no problem related with electrolyte leakage. Additionally, it is possible to manufacture electrochromic devices by using plastic materials, because the ionic liquid gel polymer electrolyte permits structural deformation with ease. Further, because the electrochromic device uses an ionic liquid, it is possible to minimize side reactions between constitutional elements of an electrochromic device and electrolyte.Type: GrantFiled: April 18, 2005Date of Patent: August 12, 2008Assignee: LG Chem, Ltd.Inventors: Jae Seung Oh, Jae Duk Park, Byoung Bae Lee, Won Jong Kwon, Sang Ho Kim, Su Jin Mun
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Publication number: 20070099090Abstract: Disclosed is a secondary battery comprising a cathode, an anode, a separator and an electrolyte, wherein the electrolyte comprises a eutectic mixture formed of: (a) an amide group-containing compound, and (b) an ionizable lithium salt, and the anode comprises a metal or metal oxide having a potential vs. lithium potential (Li/Li+) within electrochemical window of the eutectic mixture. An electrolyte for a secondary battery comprising the eutectic mixture is also disclosed. Since the secondary battery uses a eutectic mixture as an electrolyte in combination with an anode having a potential vs. lithium potential (Li/Li+) within the electrochemical window of the eutectic mixture, it solves the problems occurring in a conventional battery using a eutectic mixture as an electrolyte, such problems including decomposition of an electrolyte and degradation of the quality of a battery.Type: ApplicationFiled: October 26, 2006Publication date: May 3, 2007Inventors: Jae Seung Oh, Shin Jung Choi, Byoung Bae Lee, Jae Duk Park, Ji Won Park