Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Akiyoshi Yamauchi

Akiyoshi Yamauchi, Settsu-Shi JP

Patent application numberDescriptionPublished
20090305144ELECTROCHEMICAL DEVICE - There is provided an electrochemical device provided with an electrolytic solution comprising (I) a solvent for dissolving an electrolyte salt comprising (A) a fluorine-containing ether represented by the formula (1):12-10-2009
20100062344NON-AQUEOUS ELECTROLYTIC SOLUTION - There is provided a non-aqueous electrolytic solution comprising an electrolyte salt, a specific fluorine-containing solvent and a fluorine-containing cyclic carbonate represented by the formula (A1):03-11-2010
20100185007PROCESS FOR PREPARING FLUOROAMIDE AND FLUORONITRILE - There are provided simple processes for preparing a fluoroamide and a fluoronitrile which assure higher yield, i.e., a process for preparing a fluoroamide represented by the formula (2): CF07-22-2010
20100310943SOLVENT FOR DISSOLVING ELECTROLYTE SALT OF LITHIUM SECONDARY BATTERY - There are provided a solvent for dissolving an electrolyte salt of lithium secondary battery comprising at least one fluorine-containing solvent (I) selected from the group consisting of a fluorine-containing ether, a fluorine-containing ester and fluorine-containing chain carbonate, 1,2-dialkyl-1,2-difluoroethylene carbonate (II) and other carbonate (III), a non-aqueous electrolytic solution comprising the solvent and an electrolyte salt, and a lithium secondary battery using the non-aqueous electrolytic solution. The solvent for dissolving an electrolyte salt provides a lithium secondary battery being excellent particularly in discharge capacity, rate characteristic and cycle characteristic and has enhanced incombustibility (safety) and the non-aqueous electrolytic solution comprises the solvent and an electrolyte salt.12-09-2010
20110008681ELECTROLYTIC SOLUTION - There is provided an electrolytic solution causing no phase separation even at low temperatures, being excellent in flame retardancy and noncombustibility, assuring high solubility of an electrolyte salt, having a high discharge capacity, being excellent in charge-discharge cycle characteristics and being suitable for electrochemical devices such as lithium ion secondary batteries. The electrolytic solution comprises a solvent (I) for dissolving an electrolyte salt comprising a fluorine-containing ether (A) represented by the formula: Rf01-13-2011
20110009644PROCESS FOR PREPARING FLUORINATED 1,3-DIOXOLAN 2-ONE - The present invention provides a process for preparing fluorinated 1,3-dioxolan-2-one by reacting a derivative of 1,3-dioxolan-2-one having halogen atom other than fluorine with an amine hydrofluoride in an organic solvent, and in this preparation process, fluorinated 1,3-dioxolane-2-on can be prepared in a short period of time by liquid-liquid reaction while maintaining high yield, by using a derivative of 1,3-dioxolan-2-one having halogen atom other than fluorine as a starting material and fluorinating the derivative with a fluorinating agent.01-13-2011
20110098511METHOD OF PREPARING FLUORINE-CONTAINING ETHER - There is provided a method of preparing a high purity fluorine-containing ether which inhibits a side reaction generating an unsaturated bond and assures low cost and simple steps. When preparing the fluorine-containing ether by allowing a fluorine-containing alkyl alcohol to react with a fluorinated olefin in the presence of a basic compound, a reaction is terminated at a stage before a conversion ratio of the fluorine-containing alkyl alcohol reaches 75%.04-28-2011
20110118485PROCESS FOR PREPARING FLUOROPROPYLENE CARBONATE - There is provided a process for preparing a fluoropropylene carbonate safely at high yield by one step (one pot), and the process is characterized by allowing a fluorinating agent to act on a propylene carbonate derivative having a group to be released in a fluorination reaction.05-19-2011
20110123872NON-AQUEOUS ELECTROLYTIC SOLUTION - There is provided a non-aqueous electrolytic solution assuring good solubility of an electrolyte salt and having enough cell characteristics (charge and discharge cycle characteristic, discharge capacity, and the like), and the non-aqueous electrolytic solution comprises a solvent for dissolving an electrolyte salt comprising (A) at least one fluorine-containing solvent selected from the group consisting of fluorine-containing ethers and fluorine-containing carbonates, (B) a non-fluorine-containing cyclic carbonate and (C) a chain ester represented by the formula (C): R05-26-2011

Patent applications by Akiyoshi Yamauchi, Settsu-Shi JP

Akiyoshi Yamauchi, Osaka JP

Patent application numberDescriptionPublished
20090086408Electrolytic Solution - There is provided an electrolytic solution comprising a fluorine-containing cyclic carbonate (I) represented by the formula (I):04-02-2009
20090134353Electrolytic Solution - There is provided an electrolytic solution comprising a chain carbonate (I) represented by the formula (I):05-28-2009
20090291364Electrolytic Solution - There is provided an electrolytic solution comprising a chain carbonate (I) represented by the formula (I):11-26-2009
20100033899ELECTRICAL DOUBLE LAYER CAPACITOR - The present invention provides an electrical double layer capacity comprising a non-aqueous electrolytic solution comprising (A) a solvent comprising a specific fluorine-containing cyclic carbonate and (B) an electrolyte salt comprising a cyclic quaternary onium salt comprising cyclic quaternary onium cation and PF02-11-2010
20110008682SOLVENT FOR NON-AQUEOUS ELECTROLYTIC SOLUTION OF LITHIUM SECONDARY BATTERY - There is provided a solvent for non-aqueous electrolytic solution of lithium secondary battery comprising a non-fluorine-containing cyclic carbonate (I), a non-fluorine-containing chain carbonate (II) and 1,2-dialkyl-1,2-difluoroethylene carbonate (III), wherein assuming that the total amount of (I), (II) and (III) is 100% by volume, the non-fluorine-containing cyclic carbonate (I) is contained in an amount of 10 to 50% by volume, the non-fluorine-containing chain carbonate (II) is contained in an amount of 49.9 to 89.9% by volume and the 1,2-dialkyl-1,2-difluoroethylene carbonate (III) is contained in an amount of not less than 0.1% by volume and less than 30% by volume. Also, there are provided a non-aqueous electrolytic solution comprising the mentioned solvent and a lithium secondary battery using the non-aqueous electrolytic solution. The solvent for non-aqueous electrolytic solution of lithium secondary battery provides a lithium secondary battery having specifically excellent discharge capacity, rate characteristic, cycle characteristic and safety.01-13-2011

Patent applications by Akiyoshi Yamauchi, Osaka JP