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Hideaki Maeda

Hideaki Maeda, Minoo-Shi JP

Patent application numberDescriptionPublished
20110039162ALL-SOLID SECONDARY BATTERY AND POSITIVE ELECTRODE USED THEREFOR - An all-solid secondary battery having excellent output characteristics and cycle characteristics, and a positive electrode used therefor includes a positive electrode active material which includes LiMeO02-17-2011

Hideaki Maeda, Yokohama-Shi JP

Patent application numberDescriptionPublished
20100321817MAGNETIC DISK DRIVE AND DATA REWRITE METHODS - In one embodiment, a magnetic disk drive includes a magnetic disk having data tracks, a magnetic head, a motion mechanism for moving the magnetic head, and a controller. The controller adds a value to a rewrite parameter for a rewrite region based on a number of writes to data tracks related to the rewrite region, the value is chosen to reflect a degree of influence the number of writes have on the rewrite region, and the magnetic head rewrites data of the rewrite region when the rewrite parameter is greater than a threshold. In another embodiment, a method includes writing data tracks in a rewrite region, defining values reflecting a degree(s) of influence on the rewrite region, adding the values to a rewrite parameter upon writing data to the data tracks, determining that the rewrite parameter has reached or exceeded a threshold and rewriting data in the rewrite region.12-23-2010

Hideaki Maeda, Osaka JP

Patent application numberDescriptionPublished
20090023070Preparing method of negative active material for non-aqueous electrolyte secondary battery and negative active material prepared thereby - The method of preparing a negative active material for a non-aqueous electrolyte rechargeable battery includes mixing a vanadium compound and a lithium compound and then subjecting the mixture to first firing to obtain Li01-22-2009
20090155677SEPARATOR FOR NON-AQUEOUS RECHARGEABLE LITHIUM BATTERY - A separator for non-aqueous rechargeable lithium batteries and a non-aqueous rechargeable lithium battery including the separator are provided. The separator includes a separator body and a composite including an organic compound and an inorganic compound supporting the separator body, where the organic compound has a higher melting point than that of the material composing the separator body, and the inorganic compound includes an element selected from the group consisting of 1A, 2A, 3A, 4A, 3B, and 5B elements from the periodic table, and combinations thereof, and at least one moiety selected from the group consisting of oxides, hydroxides, carbonates, phosphates, sulfates, nitrates, alkoxides, and combinations thereof.06-18-2009
20100151326POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY INCLUDING SAME - Disclosed is a rechargeable lithium ion battery including a positive electrode including a positive active material and a negative electrode including a negative active material. The positive active material includes a lithium-manganese-based compound core and a heat resistant polymer disposed on the lithium-manganese-based compound core. The heat resistance polymer has a glass transition temperature (T06-17-2010
20100216030POSITIVE ELECTRODE FOR ALL-SOLID SECONDARY BATTERY AND ALL-SOLID SECONDARY BATTERY EMPLOYING SAME - A positive electrode for an all-solid secondary battery having excellent rate capabilities and cycle performance and an all-solid secondary battery employing the same. The positive electrode includes a positive electrode active material surface-treated such that at least a part of the surface of the positive electrode active material that is capable of occluding and releasing lithium (Li) is coated with an oxide including at least one of the Group 13 elements.08-26-2010

Hideaki Maeda, Minoh-Shi JP

Patent application numberDescriptionPublished
20080241688Negative electrode for rechargeable lithium battery and rechargeable lithium battery including the same - A negative electrode for a rechargeable lithium battery includes a current collector and a negative active mass disposed on the current collector. The negative active mass includes a negative active material including a lithium vanadium composite oxide and a crystalline structure aid for inhibiting deterioration of a crystalline structure. The negative active material can inhibit an irreversible crystalline structure change during charge and discharge, and does not incur decomposition of an electrolyte resulting in improvement of a cycle-life of a rechargeable lithium battery.10-02-2008
20090325072RECHARGEABLE LITHIUM BATTERY - A rechargeable lithium battery according to embodiments of the present invention includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode includes a first layered lithium compound having an open circuit potential (based on lithium) of 3 V or greater, and a second layered lithium compound having an open circuit potential of less than 3 V. The second layered lithium compound is included in an amount of from about 0.99 to about 30 wt % based on a total amount of the first layered lithium compound and the second layered lithium compound.12-31-2009

Hideaki Maeda, Saga JP

Patent application numberDescriptionPublished
20080277625Phosphor And Production Process Of Same - The present invention provides a lowly toxic phosphor and a production process thereof, and more particularly, the synthesis of nanoparticles having a chalcopyrite structure, a phosphor by compounding with a metal chalcogenite, and a production process thereof. The phosphor is a first compound composed of elements of groups I, III and VI having a chalcopyrite structure, or composite particles or composite compound containing the first compound, and the particle diameter of the first compound, or the composite particles or composite compound, is 0.5 to 20.0 nm. The phosphor is produced by mixing a first solution (Solution A), in which one or more of copper (I), copper (II), silver (I), indium (III), gallium (III) and aluminum (III) are respectively dissolved and mixed in a solution to which has been added a complexing agent, and a second solution (Solution C), in which a chalcogenite compound has been dissolved, followed by heat-treating under pre-determined synthesis conditions.11-13-2008
20090159849FLUORESCENT AND METHOD FOR PRODUCING THE SAME - To provide a fluorescent having low toxicity and high quantum yield, and a method for producing the same. The fluorescent is a compound comprising each one of I, III and VI group elements having a chalcopyrite structure, has a particle diameter of 0.5 to 20.0 nm and a quantum yield of at least 3% but not more than 30% at room temperature. The fluorescent is produced by: mixing a first solution (solution A), which is prepared by dissolving and mixing copper (I) salt and indium (III) salt in a solution added with a complexing agent coordinating copper (I) and indium (III), with a second solution (solution C) in which a sulfur compound is dissolved; ripening the mixed solution for a predetermined amount of time as a pretreatment; heat-treating the ripened solution under predetermined heat conditions; mixing the ripened solution with the second solution (solution C); and heating thus obtained mixed solution under predetermined synthesis conditions. In addition, a product produced by this production method is subjected to compositing treatment with ZnSe, ZnS or the like to improve the quantum yield.06-25-2009

Patent applications by Hideaki Maeda, Saga JP

Hideaki Maeda, Hyogo JP

Patent application numberDescriptionPublished
20080220333Lithium Ion Conductive Material Utilizing Bacterial Cellulose Organogel, Lithium Ion Battery Utilizing the Same and Bacterial Cellulose Aerogel - A lithium ion conductive material that excels in mechanical strength, exhibiting high ion conductivity; a bacterial cellulose composite material having an inorganic material and/or organic material incorporated therein; and a bacterial cellulose aerogel. The water of bacterial cellulose hydrogel is replaced by a nonaqueous solvent containing a lithium compound. Bacterial cellulose producing bacteria are grown in a culture medium having an inorganic material and/or organic material added thereto. The bacterial cellulose hydrogel is dehydrated and dried. 09-11-2008

Hideaki Maeda, Minamitsuru-Gun JP

Patent application numberDescriptionPublished
20110257781AUTOMATIC PROGRAMMING METHOD AND DEVICE FOR CREATING MULTI-PATH PROGRAM - In automatic programming for creating a multi-path program for a machine having a plurality of control paths performing one or more machining processes of a machining program for machining a workpiece, the machining time of each of the machining processes is calculated, workable paths are input for each of the machining processes, and then workable orders of the machining processes are input. For each of the machining processes, simultaneously workable machining processes are input if any among other machining processes. On the basis of the above results, machining programs that provide the shortest machining time are selected.10-20-2011