Patent application number | Description | Published |
20100040535 | ALPHA-ALUMINA POWDER - α-Alumina powder having a purity of at least 99.99% by weight, a specific surface area of from 0.1 to 2.0 m | 02-18-2010 |
20100047157 | PROCESS FOR PREPARATION OF ALUMINA PRECURSOR POWDER AND PROCESS FOR PREPARATION OF ALUMINA POWDER - There is provided a process for the preparation of a alumina precursor powder from aluminum hydroxide powder obtained by hydrolysis of aluminum alkoxide which precursor enables to provide alumina powder with a high volumetric efficiency. | 02-25-2010 |
20100166642 | METHOD FOR PRODUCING ALUMINA - A method for producing alumina comprising the steps of mixing an aqueous medium in an amount of 20 parts by weight or more and 300 parts by weight or less with 100 parts by weight of a first dry powdery aluminum hydroxide prepared by an aluminum alkoxide method to give a wet powdery aluminum hydroxide; drying the wet powdery aluminum hydroxide by an agitation drying system to give a second dry powdery aluminum hydroxide; and calcining the second dry powdery aluminum hydroxide to give alumina having a high bulk density. | 07-01-2010 |
20100167055 | ALPHA-ALUMINA POWDER - α-Alumina powder is provided having a purity of 99.99% by weight or more, a specific surface area of from 0.1 to 2.0 m | 07-01-2010 |
20110123805 | a-ALUMINA FOR PRODUCING SINGLE CRYSTAL SAPPHIRE - Since α-alumina particles have low bulk density, there is such a problem that a production efficiency of single crystal sapphire is not enough. The present invention provides an α-alumina for producing single crystal sapphire, wherein its volume per one α-alumina particle is not less than 0.01 cm | 05-26-2011 |
Patent application number | Description | Published |
20110206963 | INORGANIC OXIDE POWDER AND INORGANIC OXIDE-CONTAINING SLURRY, AND LITHIUM ION SECONDARY BATTERY USING THE SAME SLURRY AND METHOD OF PRODUCING THE SAME - An inorganic oxide powder suited to form an inorganic oxide porous film having insulating properties on a surface of at least one of a positive electrode, a negative electrode and a separator which are used configure a lithium ion secondary battery is provided. Disclosed is an inorganic oxide powder used to form an inorganic oxide porous film having insulating properties on a surface of at least one of a positive electrode, a negative electrode and a separator used in a lithium ion secondary battery, wherein | 08-25-2011 |
20110223423 | ALPH ALUMINA FOR THE PRODUCTION OF SAPPHIRE SINGLE CRYSTAL AND METHOD FOR PRODUCING THE SAME - An object of the present invention is to provide a alumina for the production of a sapphire single crystal, capable of producing a sapphire single crystal with high production efficiency; and a method for producing the same. | 09-15-2011 |
20120171450 | ALPHA ALUMINA SINTERED BODY FOR PRODUCTION OF SAPPHIRE SINGLE CRYSTAL - A method for producing an α alumina sintered body for the production of a sapphire single crystal characterized in that a relative density is 60% or more, a closed porosity is 10% or less, a purity is 99.99% by mass or more, each content of Si, Na, Ca, Fe, Cu and Mg is 10 ppm or less, and a volume is 1 cm | 07-05-2012 |
Patent application number | Description | Published |
20150112965 | DATABASE MANAGEMENT SYSTEM, COMPUTER, AND DATABASE MANAGEMENT METHOD - A database management system (DBMS) generates a query execution plan including information representing one or more database (DB) operations necessary for executing a query, and executes the query in accordance with the query execution plan. In the execution of the query, the DBMS dynamically generates tasks for executing the DB operations and executes the dynamically generated tasks. The query execution plan includes a plurality of query blocks, which are sets of one or more DB operations. When newly generating a task, the DBMS executes determination processing of simultaneous-task-generation number. The determination processing of simultaneous-task-generation number is to calculate, targeting each of the query blocks, the number of simultaneous task generation, which is the number of tasks simultaneously generatable as tasks for executing the query block. The number of the dynamically generated tasks is equal to or smaller than the number of simultaneous task generation. | 04-23-2015 |
20150112966 | DATABASE MANAGEMENT SYSTEM, COMPUTER, AND DATABASE MANAGEMENT METHOD - A database management system (DBMS) generates a query execution plan including information indicating one or more database (DB) operations necessary to execute the query. The DBMS dynamically generates a task for executing the DB operation in execution of the query. The DBMS performs a determination processing of simultaneous-task-generation number when newly creating a task. The determination processing of simultaneous-task-generation number is to calculate the number of simultaneous task generation, which is the number of tasks that can be generated simultaneously, based on the number of tasks which can be newly generated, a first memory resource amount which is the amount of memory resources necessary to be allocated per task newly generated, and a second memory resource amount which is the number of memory resources that can be newly allocated. The number of tasks generated dynamically and simultaneously is equal to or smaller than the calculated number of simultaneously generatable tasks. | 04-23-2015 |
20150112967 | DATABASE MANAGEMENT SYSTEM, COMPUTER, AND DATABASE MANAGEMENT METHOD - A database management system (DBMS) generates a query execution plan including information representing one or more database (DB) operations necessary for executing a query and executes the query based on the query execution plan. In the execution of the query, the DBMS dynamically generates a task for executing a DB operation and executes the dynamically generated task. The DBMS executes a task in a plurality of threads executed by a processor core. | 04-23-2015 |
20150113535 | PARALLEL DATA PROCESSING SYSTEM, COMPUTER, AND PARALLEL DATA PROCESSING METHOD - A parallel data processing system includes a parallel data processing execution unit for reading a data from a data set including a first data set that includes a plurality of first data and a second data set that includes a plurality of second data and executing processing. The parallel data processing execution unit (A) reads the first data from the first data set, and acquires a first value from the first data based on first format information acquired from an application, (B) generates one or more threads for respectively reading one or more second data corresponding to the first value from the second data set based on first reference information acquired from the application, (C) executes (A) and (B) on one or more first data in the first data set, and (D) executes a plurality of the threads in parallel. | 04-23-2015 |