Patents by Inventor Jaekook Kim
Jaekook Kim 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: 11959001Abstract: A quantum dot composition includes a quantum dot having a surface to which a ligand is bonded, and a thermal decomposition auxiliary compound. The quantum dot composition may be applied to an emission layer of a light emitting element and a display device, thereby improving luminous efficiency of the light emitting element and the display device.Type: GrantFiled: March 25, 2021Date of Patent: April 16, 2024Assignee: Samsung Display Co., Ltd.Inventors: Changhee Lee, Sehun Kim, Hyojin Ko, Dukki Kim, Jaehoon Kim, Hyunmi Doh, Yunku Jung, Jaekook Ha
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Patent number: 11955468Abstract: Provided is a light emitting element according to embodiments which includes a body including a semiconductor layer and an active layer, and a ligand including a head portion bonded to a surface of the body, an end portion spaced apart from the body, and having a positive or a negative charge, and a chain portion connecting the head portion and the end portion.Type: GrantFiled: July 17, 2020Date of Patent: April 9, 2024Assignee: Samsung Display Co., Ltd.Inventors: Yunku Jung, Sungwoon Kim, Changhee Lee, Jaekook Ha, Yunhyuk Ko, Jaehoon Kim, Minki Nam, Hyunmi Doh, Myoungjin Park, Jae Hong Park, Junwoo Park
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Publication number: 20220224783Abstract: An electronic device is provided. The electronic device includes a front plate, a back plate that faces the front plate, a side member that surrounds an inner space between the front plate and the back plate and includes a frame that forms a side surface of the electronic device and a plate that extends from the frame toward the inner space, and a blocking member located in the inner space and disposed on the plate to cover a partial area of the plate connected with the outside of the electronic device. The blocking member includes a membrane and a cover member that is disposed between the membrane and the plate and that has a through-hole formed in at least a portion thereof. The through-hole fluidly communicates with the outside of the electronic device through the partial area of the plate.Type: ApplicationFiled: January 10, 2022Publication date: July 14, 2022Inventors: Hyungwoo LEE, Sungho LEE, Namjun KIM, Jaekook KIM
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Publication number: 20170097540Abstract: A liquid crystal display apparatus includes a first substrate and a second substrate facing each other, a liquid crystal layer disposed between the first and second substrates, and a color filter layer disposed between the first substrate and the liquid crystal layer. The color filter layer includes a first color filter configured to transform incident light into light of a first color, a second color filter configured to transform incident light into light of a second color, a transparent filter configured to transmit incident light, a light-shielding unit disposed at least between the second color filter and the transparent filter, the light-shielding unit partially covering the second color filter and the transparent filter, and a compensation filter disposed between the transparent filter and the light-shielding unit, the compensation filter configured to transform incident light into blue light.Type: ApplicationFiled: May 12, 2016Publication date: April 6, 2017Inventors: Jaekook KIM, Seungwoon SHIN, Choongseob OH, Hyoungbin LIM, Yongju JEONG, Minsung CHOI
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Publication number: 20160190585Abstract: A composite cathode active material including: a lithium composite oxide; a metal phosphate represented by Formula 1, preparation methods thereof, a cathode and a lithium battery. MxPyOz ??Formula 1 wherein, in Formula 1, M is vanadium, niobium, tantalum, or a combination thereof, 1?y/x?1.33, and 4?z/y?5.Type: ApplicationFiled: December 28, 2015Publication date: June 30, 2016Inventors: Jaegu Yoon, Donghan Kim, Kwangjin Park, Sukgi Hong, Jinhwan Park, Jaekook Kim, Sungjin Kim, Jihyeon Gim, Jinju Song
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Patent number: 8551661Abstract: The present invention relates to non-aqueous electrolytes having stabilization additives and electrochemical devices containing the same. Thus the present invention provides electrolytes containing an alkali metal salt, a polar aprotic solvent, a first additive that is a substituted or unsubstituted organoamine, substituted or unsubstituted alkane, substituted or unsubstituted alkene, or substituted or unsubstituted aryl compound, and/or a second additive that is a metal (chelato)borate. When used in electrochemical devices with, e.g., lithium manganese oxide spinel electrodes, the new electrolytes provide batteries with improved calendar and cycle life.Type: GrantFiled: May 26, 2011Date of Patent: October 8, 2013Assignee: Uchicago Argonne, LLCInventors: Khalil Amine, Jaekook Kim, Donald R. Vissers
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Publication number: 20110287326Abstract: The present invention relates to non-aqueous electrolytes having stabilization additives and electrochemical devices containing the same. Thus the present invention provides electrolytes containing an alkali metal salt, a polar aprotic solvent, a first additive that is a substituted or unsubstituted organoamine, substituted or unsubstituted alkane, substituted or unsubstituted alkene, or substituted or unsubstituted aryl compound, and/or a second additive that is a metal (chelato)borate. When used in electrochemical devices with, e.g., lithium manganese oxide spinel electrodes, the new electrolytes provide batteries with improved calendar and cycle life.Type: ApplicationFiled: May 26, 2011Publication date: November 24, 2011Inventors: Khalil Amine, Jaekook Kim, Donald R. Vissers
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Patent number: 7968235Abstract: The present invention relates to non-aqueous electrolytes having stabilization additives and electrochemical devices containing the same. Thus the present invention provides electrolytes containing an alkali metal salt, a polar aprotic solvent, a first additive that is a substituted or unsubstituted organoamine, substituted or unsubstituted alkane, substituted or unsubstituted alkene, or substituted or unsubstituted aryl compound, and/or a second additive that is a metal(chelato)borate. When used in electrochemical devices with, e.g., lithium manganese oxide spinel electrodes, the new electrolytes provide batteries with improved calendar and cycle life.Type: GrantFiled: May 28, 2004Date of Patent: June 28, 2011Assignee: UChicago Argonne LLCInventors: Khalil Amine, Jaekook Kim, Donald R. Vissers
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Patent number: 7135252Abstract: A lithium metal oxide positive electrode for a non-aqueous lithium cell is disclosed. The cell is prepared in its initial discharged state and has a general formula xLiMO2.(1-x)Li2M?O3 in which 0<x<1, and where M is more than one ion with an average trivalent oxidation state and with at least one ion being Ni, and where M? is one or more ions with an average tetravalent oxidation state. Complete cells or batteries are disclosed with anode, cathode and electrolyte as are batteries of several cells connected in parallel or series or both.Type: GrantFiled: October 17, 2003Date of Patent: November 14, 2006Assignee: UChicago Argonne LLCInventors: Michael M. Thackeray, Christopher S. Johnson, Khalil Amine, Jaekook Kim
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Publication number: 20050019670Abstract: The present invention relates to non-aqueous electrolytes having stabilization additives and electrochemical devices containing the same. Thus the present invention provides electrolytes containing an alkali metal salt, a polar aprotic solvent, a first additive that is a substituted or unsubstituted organoamine, substituted or unsubstituted alkane, substituted or unsubstituted alkene, or substituted or unsubstituted aryl compound, and/or a second additive that is a metal(chelato)borate. When used in electrochemical devices with, e.g., lithium manganese oxide spinel electrodes, the new electrolytes provide batteries with improved calendar and cycle life.Type: ApplicationFiled: May 28, 2004Publication date: January 27, 2005Inventors: Khalil Amine, Jaekook Kim, Donald Vissers
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Patent number: 6680143Abstract: A lithium metal oxide positive electrode for a non-aqueous lithium cell is disclosed. The cell is prepared in its initial discharged state and has a general formula xLiMO2.(1−x)Li2M′O3 in which 0<x<1, and where M is one or more ion with an average trivalent oxidation state and with at least one ion being Mn or Ni, and where M′ is one or more ion with an average tetravalent oxidation state. Complete cells or batteries are disclosed with anode, cathode and electrolyte as are batteries of several cells connected in parallel or series or both.Type: GrantFiled: November 21, 2001Date of Patent: January 20, 2004Assignee: The University of ChicagoInventors: Michael M. Thackeray, Christopher S. Johnson, Khalil Amine, Jaekook Kim
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Patent number: 6677082Abstract: A lithium metal oxide positive electrode for a non-aqueous lithium cell is disclosed. The cell is prepared in its initial discharged state and has a general formula xLiMO2.(1-x)Li2M′O3 in which 0<x<1, and where M is one or more trivalent ion with at least one ion being Mn or Ni, and where M′ is one or more tetravalent ion. Complete cells or batteries are disclosed with anode, cathode and electrolyte as are batteries of several cells connected in parallel or series or both.Type: GrantFiled: June 21, 2001Date of Patent: January 13, 2004Assignee: The University of ChicagoInventors: Michael M. Thackeray, Christopher S. Johnson, Khalil Amine, Jaekook Kim
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Publication number: 20030047717Abstract: A cathode material and processes of preparation, including the composition, the steps of mixing and heating to obtain a crystallographically phase pure layered material which is a substituted lithium nickel oxide compositions of LiuNivTiwAlxCoyOz, where u is between about 0.8 and about 1.2, the v is between about 0.5 and about 0.99, w is between about 0.01 and about 0.5, x is between about 0.00 and about 0.5, y is between about 0.00 and about 0.5, and z is between about 1.8 and 2.3. Such a substituted lithium nickel oxide may be used for energy conversion and storage, particularly for high power application.Type: ApplicationFiled: August 28, 2001Publication date: March 13, 2003Inventors: Jaekook Kim, Donald R. Vissers, Khalil Amine
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Publication number: 20020136954Abstract: A lithium metal oxide positive electrode for a non-aqueous lithium cell is disclosed. The cell is prepared in its initial discharged state and has a general formula xLiMO2.(1-x)Li2M′O3 in which 0<x<1, and where M is one or more trivalent ion with at least one ion being Mn or Ni, and where M′ is one or more tetravalent ion with at least one ion. Complete cells or batteries are disclosed with anode, cathode and electrolyte as are batteries of several cells connected in parallel or series or both.Type: ApplicationFiled: June 21, 2001Publication date: September 26, 2002Inventors: Michael M. Thackeray, Christopher S. Johnson, Khalil Amine, Jaekook Kim
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Publication number: 20020114995Abstract: A lithium metal oxide positive electrode for a non-aqueous lithium cell is disclosed. The cell is prepared in its initial discharged state and has a general formula xLiMO2.(1−x)Li2M′O3 in which 0<x<1, and where M is one or more ion with an average trivalent oxidation state and with at least one ion being Mn or Ni, and where M′ is one or more ion with an average tetravalent oxidation state. Complete cells or batteries are disclosed with anode, cathode and electrolyte as are batteries of several cells connected in parallel or series or both.Type: ApplicationFiled: November 21, 2001Publication date: August 22, 2002Inventors: Michael M. Thackeray, Christopher S. Johnson, Khalil Amine, Jaekook Kim
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Patent number: 6361755Abstract: A spinel oxide, Li4Mn5O12, is synthesized by a solution phase oxidation reaction of Mn2+ with lithium peroxide in the presence of excess lithium hydroxide, followed by firing at T≦500° C. This material may be useful as a cathode for rechargeable lithium batteries. Samples fired at 400° C. and 500° C. show an initial capacity of, respectively, 160 mAh/g and 153 mAh/g, in the voltage range 3.3-2.3 V. These capacities are close to the theoretical value. The sample fired at 500° C. shows excellent cyclability with <2% capacity decline over 40 cycles.Type: GrantFiled: March 24, 1999Date of Patent: March 26, 2002Assignee: Board of Regents, The University of Texas SystemInventors: Arumugam Manthiram, Jaekook Kim
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Patent number: 6331282Abstract: A method for synthesizing a manganese oxyiodide, including the steps of reducing sodium permanganate by lithium iodide at ambient temperature to obtain the manganese oxyiodide, and annealing the manganese oxyiodide at an elevated temperature. Such a manganese oxyiodide may be used for energy conversion and storage, particularly for battery and supercapacitor applications.Type: GrantFiled: November 10, 1998Date of Patent: December 18, 2001Assignee: Board of Regents, The University of Texas SystemInventors: Arumugam Manthiram, Jaekook Kim
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Patent number: 6268085Abstract: A composite electrode and process of making. The composite includes a mixture of nanometer size particles of the lithium spinel oxide, Li1+xMn2−xO4+&dgr;, and NayMnO2, where 0≦x≦0.33 and 0≦&dgr;≦0.5 and 0≦y≦1.0.Type: GrantFiled: March 31, 1999Date of Patent: July 31, 2001Assignee: Board of Regents, The University of Texas SystemInventors: Arumugam Manthiram, Jaekook Kim