Patents by Inventor Hiromoto Katsuyama
Hiromoto Katsuyama 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: 11637320Abstract: An electrolytic solution comprising N-(fluorosulfonyl)-N-(fluoroalkylsulfonyl)imide or di(fluorosulfonyl)imide, from which a residual solvent that affects the properties of the electrolyte solution material is reduced, is provided. A method for producing an electrolyte solution material containing fluorosulfonyl imide salt represented by the following general formula (1) and an electrolyte solution preparation solvent comprises decompressing and/or heating a solution containing the fluorosulfonyl imide salt and the electrolyte solution preparation solvent to volatilize a production solvent for the fluorosulfonyl imide salt. In general formula (1), R1 represents a fluorine atom or a fluorinated alkyl group having 1 to 6 carbon atoms, R2 represents an alkali metal ion.Type: GrantFiled: October 5, 2015Date of Patent: April 25, 2023Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Yasunori Okumura, Shimpei Sato, Masayuki Okajima, Takayuki Kobatake, Hiromoto Katsuyama
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Patent number: 11539078Abstract: An electrolytic solution comprising N-(fluorosulfonyl)-N-(fluoroalkylsulfonyl)imide or di(fluorosulfonyl)imide, from which a residual solvent that affects the properties of the electrolyte solution material is reduced, is provided. A method for producing an electrolyte solution material containing fluorosulfonyl imide salt represented by the following general formula (1) and an electrolyte solution preparation solvent comprises decompressing and/or heating a solution containing the fluorosulfonyl imide salt and the electrolyte solution preparation solvent to volatilize a production solvent for the fluorosulfonyl imide salt. In general formula (1), R1 represents a fluorine atom or a fluorinated alkyl group having 1 to 6 carbon atoms, R2 represents an alkali metal ion.Type: GrantFiled: October 19, 2020Date of Patent: December 27, 2022Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Yasunori Okumura, Shimpei Sato, Masayuki Okajima, Takayuki Kobatake, Hiromoto Katsuyama
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Publication number: 20220212931Abstract: Provided is a compound represented by Formula (1) below. MaXbYc??(1) (In Formula (1), M represents metal other than alkali metal, X represents —N(SO2F)2, Y represents a coordinating solvent, and a, b, and c are positive numbers.Type: ApplicationFiled: May 1, 2020Publication date: July 7, 2022Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Chie ONODA, Takayuki KOBATAKE, Hiromoto KATSUYAMA
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Patent number: 11097949Abstract: In the present invention, a bis (fluorosulfonyl) imide metal salt is an alkali metal salt of bis (fluorosulfonyl) imide or an alkaline earth metal salt of bis (fluorosulfonyl) imide. The bis (fluorosulfonyl) imide metal salt has an average particle diameter of not less than 0.1 mm, or has an average moisture absorption rate of not more than 2.5 mass ppm/cm2·min when sealed in a PE bag having a thickness of 80 ?m and left for 30 minutes at 23° C. and 65% humidity.Type: GrantFiled: February 2, 2018Date of Patent: August 24, 2021Assignees: MORITA CHEMICAL INDUSTRIES CO., LTD., NIPPON SHOKUBAI CO., LTD.Inventors: Kenji Yamada, Hirotsugu Shimizu, Hiromoto Katsuyama, Hiroyuki Mizuno, Yasunori Okumura, Naohiko Itayama, Yukihiro Fukata, Yuichi Sato, Yasuhiro Higuchi, Takahiro Yamauchi
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Patent number: 10978740Abstract: The objective of the present invention is to provide an electrolyte solution of which electrolyte salt concentration is high and by which cycle characteristics hardly deteriorate and battery lifetime can be extended, and a lithium ion secondary battery which contains the above electrolyte solution. The electrolyte solution of the present invention comprises an electrolyte salt and a solvent, wherein a concentration of the electrolyte salt is more than 1.1 mol/L, the electrolyte salt contains a compound represented by the following formula (1): (XSO2) (FSO2)NLi (1) (wherein X is a fluorine atom, a C1-6 alkyl group or a C1-6 fluoroalkyl group), and the solvent contains a cyclic carbonate.Type: GrantFiled: February 18, 2014Date of Patent: April 13, 2021Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Hiroyuki Mizuno, Kazuhisa Hirata, Takeo Kawase, Izuho Okada, Hiromoto Katsuyama, Miwako Tominaga, Masayuki Okajima
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Publication number: 20210036371Abstract: An electrolytic solution comprising N-(fluorosulfonyl)-N-(fluoroalkylsulfonyl)imide or di(fluorosulfonyl)imide, from which a residual solvent that affects the properties of the electrolyte solution material is reduced, is provided. A method for producing an electrolyte solution material containing fluorosulfonyl imide salt represented by the following general formula (1) and an electrolyte solution preparation solvent comprises decompressing and/or heating a solution containing the fluorosulfonyl imide salt and the electrolyte solution preparation solvent to volatilize a production solvent for the fluorosulfonyl imide salt. In general formula (1), R1 represents a fluorine atom or a fluorinated alkyl group having 1 to 6 carbon atoms, R2 represents an alkali metal ion.Type: ApplicationFiled: October 19, 2020Publication date: February 4, 2021Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Yasunori OKUMURA, Shimpei SATO, Masayuki OKAJIMA, Takayuki KOBATAKE, Hiromoto KATSUYAMA
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Patent number: 10829377Abstract: Provided is a method the enables easy production of bis(fluorosulfonyl)imide suitable for a non-aqueous electrolytic solution for a lithium ion secondary battery, etc. The method for producing a bis(fluorosulfonyl)imide alkali metal salt according to the present invention comprises reacting bis(fluorosulfonyl)imide with an alkali metal compound in a reaction solution containing an organic solvent, wherein the organic solvent includes at least one organic solvent (A) selected from the group consisting of carbonate solvents, cyclic ether solvents, linear ether solvents having two or more oxygen atoms in the molecule, cyclic ester solvents, sulfolane solvents, N,N-dimethyl formamide, dimethyl sulfoxide, and N-methyl oxazolidinone.Type: GrantFiled: May 25, 2017Date of Patent: November 10, 2020Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Yasunori Okumura, Hiromoto Katsuyama, Naohiko Itayama, Hiroyuki Mizuno, Yukihiro Fukata
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Patent number: 10461365Abstract: The objective of the present invention is to provide a clear conductive material with less turbidity, methods for producing and purifying the conductive material, and a nonaqueous electrolyte solution and an antistatic agent which contain the conductive material. The conductive material of the present invention comprises a fluorosulfonylimide salt represented by the following formula (1): wherein X is F of a C1-6 fluoroalkyl group, and at least one organic solvent selected from the group consisting of a carbonate solvent, an ester solvent, a ketone solvent and an alcohol solvent, wherein a concentration of the fluorosulfonylimide salt is 0.1 mol/L or more, and a turbidity is 50 NTU/mol-LiFSI or less; and the production method of the present invention comprises the step of filtering a solution comprising the fluorosulfonylimide salt and the organic solvent by using a filter medium comprising the specific material.Type: GrantFiled: June 22, 2016Date of Patent: October 29, 2019Assignee: NIPPON SHOKUBAI CO., LTD.Inventor: Hiromoto Katsuyama
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Publication number: 20190292054Abstract: Provided is a method the enables easy production of bis(fluorosulfonyl)imide suitable for a non-aqueous electrolytic solution for a lithium ion secondary battery, etc. The method for producing a bis(fluorosulfonyl)imide alkali metal salt according to the present invention comprises reacting bis(fluorosulfonyl)imide with an alkali metal compound in a reaction solution containing an organic solvent, wherein the organic solvent includes at least one organic solvent (A) selected from the group consisting of carbonate solvents, cyclic ether solvents, linear ether solvents having two or more oxygen atoms in the molecule, cyclic ester solvents, sulfolane solvents, N,N-dimethyl formamide, dimethyl sulfoxide, and N-methyl oxazolidinone.Type: ApplicationFiled: May 25, 2017Publication date: September 26, 2019Inventors: Yasunori OKUMURA, Hiromoto KATSUYAMA, Naohiko ITAYAMA, Hiroyuki MIZUNO, Yukihiro FUKATA
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Publication number: 20190276311Abstract: Provided is a method with which it is possible to conveniently produce bis(fluorosulfonyl)imide suitable as a nonaqueous electrolyte of a lithium ion secondary cell. The method for producing a bis(fluorosulfonyl)imide alkali metal salt of the invention is a production method for producing a bis(fluorosulfonyl)imide alkali metal salt by reacting bis(fluorosulfonyl)imide and an alkali metal halide in a reaction solution including an organic solvent, the method including a purification step for filtering out the bis(fluorosulfonyl)imide alkali metal from the solution after the reaction.Type: ApplicationFiled: May 25, 2017Publication date: September 12, 2019Inventors: Naohiko ITAYAMA, Yasunori OKUMURA, Hiromoto KATSUYAMA, Hiroyuki MIZUNO, Yukihiro FUKATA
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Publication number: 20190165417Abstract: A compound represented by the following formula (1): wherein R1, R2 and R3 each independently represent fluorine, an alkyl group having 1 to 6 carbon atoms or a fluoroalkyl group having 1 to 6 carbon atoms; and M+ represents an alkali metal ion.Type: ApplicationFiled: November 27, 2018Publication date: May 30, 2019Applicants: Nippon Shokubai Co., Ltd., Morita Chemical Industries Co., Ltd.Inventors: Yoshihiro Morita, Hiroyuki Mizuno, Yukihiro Fukata, Shin-ya Shibata, Naohiko Itayama, Hiromoto Katsuyama
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Publication number: 20190161356Abstract: To provide a composition in which when the composition is formed into a solution, the clogging of a filter is less likely to be caused, and the solution can be filtered in a short time. A composition comprising: lithium bis(fluorosulfonyl)imide; and an impurity, wherein when the composition is dissolved in a mixed solvent obtained by mixing ethylene carbonate and ethyl methyl carbonate at a volume ratio of 3:7, to prepare a solution having a concentration of the lithium bis(fluorosulfonyl)imide of 1 M, and 50 mL of the solution is pressure-filtered at a pressure of 0.1 MPa using a membrane filter having a pore diameter of 0.2 ?m and a filtration area of 47 mm?, insoluble particles having an average particle diameter of 5 to 150 ?m remain on the membrane filter.Type: ApplicationFiled: November 27, 2018Publication date: May 30, 2019Applicants: Nippon Shokubai Co., Ltd., Morita Chemical Industries Co., Ltd.Inventors: Hiroyuki Mizuno, Hiromoto Katsuyama, Naohiko Itayama
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Publication number: 20190152792Abstract: The present invention provides a method for producing a bis (fluorosulfonyl) imide alkali metal salt by a reaction of a mixture containing bis (fluorosulfonyl) imide and an alkali metal compound is provided. According to this method for producing a bis (fluorosulfonyl) imide alkali metal salt, a total of weight ratios of the bis (fluorosulfonyl) imide, the alkali metal compound and the bis (fluorosulfonyl) imide alkali metal salt to an entire reacted mixture is not less than 0.8, after the reaction.Type: ApplicationFiled: May 23, 2017Publication date: May 23, 2019Applicants: MORITA CHEMICAL INDUSTRIES CO., LTD., NIPPON SHOKUBAI CO., LTD.Inventors: Kenji Yamada, Hirotsugu Shimizu, Yasunori Okumura, Masayuki Okajima, Takeo Kawase, Hiromoto Katsuyama, Hiroyuki Mizuno, Yukihiro Fukata, Naohiko Itayama
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Patent number: 10290900Abstract: A non-aqueous electrolytic solution capable of suppressing reduction in capacity, cycle characteristics, and/or rate characteristics even when used under high voltage conditions after being stored under high temperature conditions (e.g., 60° C. or higher); and a lithium ion secondary battery using these non-aqueous electrolytic solutions are provided. The non-aqueous electrolytic solution of the present invention comprise an anion represented by the following general formula (1), a lithium cation, and a compound represented by the following general formula (2A) and/or an acid anhydride having an aromatic ring and at least one structure represented by —C(?O)—O—C(?O)— in a molecule, wherein a concentration of the anion represented by the general formula (1) is 0.1 mol/L or more.Type: GrantFiled: March 25, 2015Date of Patent: May 14, 2019Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Hiroyuki Mizuno, Takayuki Kobatake, Hiromoto Katsuyama, Shin-ya Shibata, Takeo Kawase, Kazuhisa Hirata
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Publication number: 20190135632Abstract: In the present invention, a bis (fluorosulfonyl) imide metal salt is an alkali metal salt of bis (fluorosulfonyl) imide or an alkaline earth metal salt of bis (fluorosulfonyl) imide. The bis (fluorosulfonyl) imide metal salt has an average particle diameter of not less than 0.1 mm, or has an average moisture absorption rate of not more than 2.5 mass ppm/cm2·min when sealed in a PE bag having a thickness of 80 ?m and left for 30 minutes at 23° C. and 65% humidity.Type: ApplicationFiled: February 2, 2018Publication date: May 9, 2019Applicants: MORITA CHEMICAL INDUSTRIES CO., LTD., NIPPON SHOKUBAI CO., LTD.Inventors: Kenji Yamada, Hirotsugu Shimizu, Hiromoto Katsuyama, Hiroyuki Mizuno, Yasunori Okumura, Naohiko Itayama, Yukihiro Fukata, Yuichi Sato, Yasuhiro Higuchi, Takahiro Yamauchi
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Publication number: 20180123172Abstract: The objective of the present invention is to provide a clear conductive material with less turbidity, methods for producing and purifying the conductive material, and a nonaqueous electrolyte solution and an antistatic agent which contain the conductive material. The conductive material of the present invention comprises a fluorosulfonylimide salt represented by the following formula (1): wherein X is F of a C1-6 fluoroalkyl group, and at least one organic solvent selected from the group consisting of a carbonate solvent, an ester solvent, a ketone solvent and an alcohol solvent, wherein a concentration of the fluorosulfonylimide salt is 0.1 mol/L or more, and a turbidity is 50 NTU/mol-LiFSI or less; and the production method of the present invention comprises the step of filtering a solution comprising the fluorosulfonylimide salt and the organic solvent by using a filter medium comprising the specific material.Type: ApplicationFiled: June 22, 2016Publication date: May 3, 2018Applicant: NIPPON SHOKUBAI CO., LTD.Inventor: Hiromoto KATSUYAMA
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Publication number: 20170214092Abstract: An electrolytic solution comprising N-(fluorosulfonyl)-N-(fluoroalkylsulfonyl)imide or di(fluorosulfonyl)imide, from which a residual solvent that affects the properties of the electrolyte solution material is reduced, is provided. A method for producing an electrolyte solution material containing fluorosulfonyl imide salt represented by the following general formula (1) and an electrolyte solution preparation solvent comprises decompressing and/or heating a solution containing the fluorosulfonyl imide salt and the electrolyte solution preparation solvent to volatilize a production solvent for the fluorosulfonyl imide salt. In general formula (1), R1 represents a fluorine atom or a fluorinated alkyl group having 1 to 6 carbon atoms, R2 represents an alkali metal ion.Type: ApplicationFiled: October 5, 2015Publication date: July 27, 2017Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Yasunori OKUMURA, Shimpei SATO, Masayuki OKAJIMA, Takayuki KOBATAKE, Hiromoto KATSUYAMA
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Publication number: 20170117582Abstract: A non-aqueous electrolytic solution capable of suppressing reduction in capacity, cycle characteristics, and/or rate characteristics even when used under high voltage conditions after being stored under high temperature conditions (e.g., 60° C. or higher); and a lithium ion secondary battery using these non-aqueous electrolytic solutions are provided. The non-aqueous electrolytic solution of the present invention comprise an anion represented by the following general formula (1), a lithium cation, and a compound represented by the following general formula (2A) and/or an acid anhydride having an aromatic ring and at least one structure represented by —C(?O)—O—C(?O)— in a molecule, wherein a concentration of the anion represented by the general formula (1) is 0.1 mol/L or more.Type: ApplicationFiled: March 25, 2015Publication date: April 27, 2017Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Hiroyuki MIZUNO, Takayuki KOBATAKE, Hiromoto KATSUYAMA, Shin-ya SHIBATA, Takeo KAWASE, Kazuhisa HIRATA
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Patent number: 9243013Abstract: The present invention provides a method of producing a tetracyanoborate-containing ionic compound in a milder condition more efficiently and less expensively than conventional methods, and a tetracyanoborate-containing ionic compound having a reduced content of impure components. An ionic compound of the present invention is represented by the following general formula (I), has a content of fluorine atom-containing impurities of 3 mol % or less per 100 mol % of the ionic compound, and a method for producing an ionic compound represented by the general formula (I) of the present invention comprises a step of reacting starting materials containing a cyanide and a boron compound. (In the formula, Ktm+ denotes an organic cation [Ktb]m+ or an inorganic cation [Ke]m+; and m denotes an integer of 1 to 3.Type: GrantFiled: August 21, 2009Date of Patent: January 26, 2016Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Yuji Hagiwara, Takanori Ochi, Kazunobu Ohata, Taisuke Kasahara, Taketo Toba, Keiichiro Mizuta, Hiromoto Katsuyama, Satoshi Ishida, Toshifumi Nishida
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Publication number: 20150380768Abstract: The objective of the present invention is to provide an electrolyte solution of which electrolyte salt concentration is high and by which cycle characteristics hardly deteriorate and battery lifetime can be extended, and a lithium ion secondary battery which contains the above electrolyte solution. The electrolyte solution of the present invention comprises an electrolyte salt and a solvent, wherein a concentration of the electrolyte salt is more than 1.1 mol/L, the electrolyte salt contains a compound represented by the following formula (1): (XSO2) (FSO2)NLi (1) (wherein X is a fluorine atom, a C1-6 alkyl group or a C1-6 fluoroalkyl group), and the solvent contains a cyclic carbonate.Type: ApplicationFiled: February 18, 2014Publication date: December 31, 2015Inventors: Hiroyuki MIZUNO, Kazuhisa HIRATA, Takeo KAWASE, Izuho OKADA, Hiromoto KATSUYAMA, Miwako TOMINAGA, Masayuki OKAJIMA