Samsung Fine Chemicals Co., Ltd.

Samsung Sdi Co., Inc.

Samsung Electronics Co., Ltd.

Samsung Electro-mechanics Co., Ltd.

Woo Young Yang

Keon Il Kim

Dong Won Kim

Dae Il Hwang

Il Sun Hwang

Duck Kyun Ahn

Jae Bum Park

Jae Kwang Hwang

Il Hyuk Kim

Dae Woong Choi

Yun Jung Park

Dong Gyu Chang

Ji Ho Park

Jun Hee Lee

Hyun A Song

Chun Joong Kim

Joo Young Kim

Eun Kyung Lee

Kang Heon Hur

Jeong Il Park

Jae-joon Oh

In-jun Hwang

Youngjun Yun

Jeong-yub Lee

Jiyoung Jung

Xianyu Wenxu

Ajeong Choi

Yong-young Park

Jai Joon Lee

Heon Gwon Lee

Hyun Cheol Lee

Ju Myeung Lee

Seon Cheol Park

Jae Chul Jung

Chang -youl Moon

Kyu Eun Shim

The present invention relates to a method for preparing a lithium metal phosphor oxide, the method including: mixing an iron salt solution and a phosphate solution in a reactor; applying a shearing force to the mixed solution in the reactor during the mixing to form a suspension containing nano-sized iron phosphate precipitate particles; obtaining the nano-sized iron phosphate particles from the suspension; and mixing the iron phosphate with a lithium raw material and performing firing, and the lithium metal phosphor oxide according to the present invention has an Equation of LiMFePO. Herein, M is selected from the group consisting of Ni, Co, Mn, Cr, Zr, Nb, Cu, V, Ti, Zn, Al, Ga, and Mg, and n is in a range of 0 to 1. According to the present invention, since calcination is performed at a temperature that is lower than that of another existing method, there is an effect of reducing a process cost, and the obtained lithium metal phosphor oxide prepared according to the method of the present invention has an olivine structure type.

Method for preparing lithium metal phosphor oxide

A storage device, a storage system comprising the same, and operating methods of the storage device are provided. The storage device includes a first nonvolatile memory cell array which includes a plurality of cell strings arranged in a direction perpendicular to a substrate, and stores first data at a first address, a second nonvolatile memory cell array which stores second data selected from the first data at a second address, in accordance with an access pattern to the first data, and a memory controller which manages a first mapping table indicating that the second data is stored at the second address of the second nonvolatile memory cell array, and a second mapping table indicating that the first data as original data of the second data is stored at the first address.

Storage device, storage system comprising the same, and operating methods of the storage device

A thin film transistor includes a gate electrode, a semiconductor overlapping the gate electrode, a gate insulator between the gate electrode and the semiconductor, and a source electrode and a drain electrode electrically connected to the semiconductor, wherein the gate insulator includes an inorganic insulation layer facing the gate electrode and an organic insulation layer facing the semiconductor. A method of manufacturing the thin film transistor and an electronic device including the thin film transistor are provided.

Thin film transistor, method of manufacturing same, and electronic device including thin same

Disclosed is a method for manufacturing a lithium transition metal phosphate. The disclosed method for manufacturing a lithium transition metal phosphate comprises the steps of: injecting reaction materials containing lithium, a transition metal, and a phosphate, into a reactor, and mixing the raw materials at the molecular level in the reactor; and allowing the reaction materials to chemically react in the reactor so as to cause nucleation.

Method for manufacturing a lithium transition metal phosphate

Provided is a positive electrode active material for a lithium secondary battery including a positive electrode active material particle and an electrolyte-containing metal oxide coating layer having a porous structure and a method of manufacturing the same. A lithium secondary battery to which the positive electrode active material including the electrolyte-containing metal oxide coating layer is applied can have improved charge/discharge efficiency and lifespan characteristics at the same time.

Positive electrode active material for lithium secondary battery, method of manufacturing the same, and lithium secondary battery including the material

Provided are a crystalline iron phosphate doped with metals (MFePO), which is used as a precursor of olivine-structured LiMFePO(LMFP) used as a cathode active material for lithium secondary batteries, and a method of preparing the crystalline iron phosphate, in which a crystalline iron phosphate doped with metals has the following Formula I obtained by crystallizing amorphous iron phosphate and doping the latter with a different type of a metal. Formula I: MFePO, where M is selected from the group consisting of Ni, Co, Mn, Cr, Zr, Nb, Cu, V, Ti, Zn, Al, Ga, Mg, and B. The preparation of olivine-structured LMFP, which is used as a cathode active material for lithium secondary batteries, using the crystalline iron phosphate doped with metals as a precursor can increase efficiency and reduce processing costs as compared to another method of preparing the same by mixing different types of metals in a solid state.

Crystalline iron phosphate doped with metal, method of preparing the same, and lithium composite metal phosphate prepared therefrom

A method for forming a selective ohmic contact for a Group III-nitride heterojunction structured device may include forming a conductive layer and a capping layer on an epitaxial substrate including at least one Group III-nitride heterojunction layer and having a defined ohmic contact region, the capping layer being formed on the conductive layer or between the conductive layer and the Group III-nitride heterojunction layer in one of the ohmic contact region and non-ohmic contact region, and applying at least one of a laser annealing process and an induction annealing process on the substrate at a temperature of less than or equal to about 750&#xb0; C. to complete the selective ohmic contact in the ohmic contact region.

Selective low-temperature ohmic contact formation method for group III-nitride heterojunction structured device

Provided are a toner and a method of preparing the same. The toner includes a binder resin, a coloring agent, and at least one additive, and a storage modulus curve of the toner with respect to temperature has multiple inflection points. The toner may be used in an electrophotographic image forming apparatus.

Toner having multiple inflection points on storage modulus curve with respect to temperature and method of preparing the same

Provided are a method of forming a toner image and an electrophotographic image forming apparatus including a toner. The method of forming a toner image is performed using a first toner having a yellow color and color coordinate values of a lightness (L) ranging from 91 to 94, a redness (a) ranging from &#x2212;11 to &#x2212;9, and a yellowness (b) ranging from 77 to 82; a second toner having a magenta color and color coordinate values of a lightness (L) ranging from 56 to 61, a redness (a) ranging from 56 to 61, and a yellowness (b) ranging from &#x2212;7 to &#x2212;5; and a third toner having a cyan color and color coordinate values of a lightness (L) ranging from 58 to 62, a redness (a) ranging from &#x2212;33 to &#x2212;30, and a yellowness (b) ranging from &#x2212;42 to &#x2212;37.

Method of forming toner image and electrophotographic image forming apparatus capable of realizing wide color gamut

A toner has a core-shell structure including a toner core portion having a resin with an active hydrogenactive hydrogen containing group, a colorant and at least one additive, and a toner shell portion surrounding the toner core portion, wherein the toner shell portion includes a cross-linked resin prepared by reaction of at least a portion of the active hydrogen containing group and the cross-linking agent.

Toner having core-shell structure and method of preparing the same

A method of preparing lithium titanate nanoparticles, the method including: feeding reactants including lithium and titanium into a reactor, followed by mixing the reactants in the reactor at a molecular level; and generating a crystal nucleus by chemically reacting the reactants in the reactor.

Method of preparing lithium titanate nanoparticles

Provided is a method of preparing a toner, the method including: preparing a solvent emulsion by stirring a medium including a polar medium, an organic solvent, and a surfactant; adding toner components including a resin and a pigment to the solvent emulsion; removing the organic solvent from the solvent emulsion including the toner components; and collecting a toner particle from the solvent emulsion from which the organic solvent is removed.

Method of preparing toner

Provided are a toner using a resin having an active hydrogen-containing group, and a method of preparing the toner. The toner using a resin having an active hydrogen-containing group includes a binder resin (A), a cross-linked resin including a THF insoluble content of 99-100 weight %, a colorant, and at least one additive. The cross-linked resin is arranged in the form of a plurality of islands in each particle of the toner.

Toner using resin having active hydrogen-containing group and method of preparing the same

A method of preparing a toner using a micro-suspension particle, includes preparing a mixture by mixing a resin having acidic groups, a master batch of coloring pigment, and at least one additive with an organic solvent, and then neutralizing the acid groups of the resin with a base; forming a micro-suspension by adding the prepared mixture to a dispersion medium; and forming a toner composition by removing the organic solvent from the prepared micro-suspension. Therefore, the method of preparing a toner using the disclosed micro-suspension particle and a toner prepared using the same can save manufacturing costs, and can improve charging ability and cleaning properties of the toner.

Method of preparing toner using micro-suspension particles and toner prepared using the method digital image data

The present invention relates to a method for preparing barium titanate based powder. More particularly, the present invention provides a method for preparing barium titanate powder comprising the following steps of precipitation of barium titanyl oxalate (BaTiO(CO).4HO) with spraying a mixture of an aqueous barium chloride (BaCl.2HO) and titanium tetrachloride (TiCl) to an aqueous solution of oxalic acid, via a nozzle; wet pulverization by using a beads mill after adding an additive such as an amine; dry; pyrolysis; and re-pulverization.

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Daejeon, South Korea

Woo Young Yang