Patents by Inventor Shiro Tsubokura
Shiro Tsubokura 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: 10717705Abstract: A method for efficiently removing impurities such as sodium ions, fluoride ions, chloride ions and fluorosulfate ions without reducing the yield of a target product, including a fluorine-containing sulfonylamide compound selected from the group consisting of fluorine-containing sulfonylamide, a metal salt thereof, an ammonium salt thereof and a quaternary ammonium salt thereof is washed with an aqueous solution of salt of sulfuric acid.Type: GrantFiled: August 1, 2017Date of Patent: July 21, 2020Assignee: NIPPON SODA CO., LTD.Inventors: Shiro Tsubokura, Yuka Aomori, Satoshi Kako
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Publication number: 20190233368Abstract: A method for efficiently removing impurities such as sodium ions, fluoride ions, chloride ions and fluorosulfate ions without reducing the yield of a target product, including a fluorine-containing sulfonylamide compound selected from the group consisting of fluorine-containing sulfonylamide, a metal salt thereof, an ammonium salt thereof and a quaternary ammonium salt thereof is washed with an aqueous solution of salt of sulfuric acid.Type: ApplicationFiled: August 1, 2017Publication date: August 1, 2019Applicant: NIPPON SODA CO., LTD.Inventors: Shiro TSUBOKURA, Yuka AOMORI, Satoshi KAKO
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Patent number: 10214419Abstract: Granules or powders consisting of a compound of formula [I], in which a modal diameter is 80 ?m or less, a median diameter is 45 ?m or less, and/or, a ratio of (modal diameter)/(median diameter) is 1.7 or less, are preferably used for an electrolyte or the like. In formula [I], R1 and R2 each independently represents a fluoroalkyl group having 1 to 6 carbon atoms, or a fluorine atom, and Y+ represents an alkali metal cation or an ammonium cation.Type: GrantFiled: October 31, 2014Date of Patent: February 26, 2019Assignee: Nippon Soda Co., Ltd.Inventors: Shiro Tsubokura, Yasuyuki Aiura
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Publication number: 20160289074Abstract: Granules or powders consisting of a compound of formula [I], in which a modal diameter is 80 ?m or less, a median diameter is 45 ?m or less, and/or, a ratio of (modal diameter)/(median diameter) is 1.7 or less, are preferably used for an electrolyte or the like. In formula [I], R1 and R2 each independently represents a fluoroalkyl group having 1 to 6 carbon atoms, or a fluorine atom, and Y+ represents an alkali metal cation or an ammonium cation.Type: ApplicationFiled: October 31, 2014Publication date: October 6, 2016Applicant: Nippon Soda Co., Ltd.Inventors: Shiro Tsubokura, Yasuyuki AIURA
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Publication number: 20160145242Abstract: A medicinal active ingredient is provided which is useful for the treatment or prevention of inflammatory diseases, diseases caused by lipid oxidation, retinochoroidal disorders. A phenylimidazole derivative represented by Formula (IB) or a salt thereof is provided. A therapeutic medicine or preventive medicine is provided for inflammatory diseases, diseases caused by lipid oxidation, or retinochoroidal disorders, the medicine including at least one selected from the phenylimidazole derivative, a salt thereof, and metabolites thereof as an active ingredient. In Formula (IB), R1a represents an alkyl group etc., R2 represents an amino group etc., R3 represents a halogen atom, an alkyl group etc., R4 represents a cyano group etc., R5 represents an alkyl group etc., and R6 represents an alkyl group etc.Type: ApplicationFiled: June 26, 2014Publication date: May 26, 2016Applicant: Nippon Soda Co., Ltd.Inventors: Nobuhiro UMEDA, Shiro TSUBOKURA, Seiichi UCHIDA, Keiji KOIZUMI, Hiroko MOROE, Ichiro OHSHIO
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Patent number: 9242862Abstract: A compound [I] such as ammonium N-(chlorosulfonyl)-N-(fluorosulfonyl)imide is reacted with hydrogen fluoride to obtain a compound [II] such as ammonium N,N-di(fluorosulfonyl)imide. The obtained compound [II] is reacted with an alkali metal compound or the like to obtain a compound [IV] such as an N,N-di(fluorosulfonyl)imide alkali metal salt.Type: GrantFiled: January 30, 2012Date of Patent: January 26, 2016Assignee: Nippon Soda Co., Ltd.Inventors: Shiro Tsubokura, Michiaki Maruyama
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Patent number: 9233849Abstract: By reacting a fluorine-containing sulfonylimide ammonium salt such as ammonium N,N-di(fluorosulfonyl)imide with an alkali metal hydroxide such as lithium hydroxide, potassium hydroxide or sodium hydroxide under reduced pressure and at a low temperature of approximately 40° C., a fluorine-containing sulfonylimide alkali metal salt such as lithium N,N-di(fluorosulfonyl)imide, potassium N,N-di(fluorosulfonyl)imide or sodium N,N-di(fluorosulfonyl)imide is obtained.Type: GrantFiled: February 28, 2012Date of Patent: January 12, 2016Assignee: NIPPON SODA CO., LTD.Inventors: Shiro Tsubokura, Toru Suzuki, Michiaki Maruyama, Yasuyuki Aiura
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Patent number: 9096502Abstract: A compound [II] such as ammonium N,N-di(fluorosulfonyl)imide is obtained by reacting a compound [I] such as N,N-di(chlorosulfonyl)imide and NH4F (HF)p. A compound [IV] such as an N,N-di(fluorosulfonyl)imide alkali metal salt is obtained by reacting the obtained compound [II] and an alkali metal compound or the like.Type: GrantFiled: February 24, 2012Date of Patent: August 4, 2015Assignee: NIPPON SODA CO., LTD.Inventors: Shiro Tsubokura, Yasuyuki Aiura, Toru Suzuki, Michiaki Maruyama
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Patent number: 9018385Abstract: Disclosed is a compound containing a pyridine ring that can be synthesized in an industrially advantageous manner, and is useful as an intermediate for producing tetrazolyloxime derivatives that exhibit fungicidal activity (wherein R0 represents a C1-6 alkoxy group, C1-6 alkoxy-C1-6 alkoxy group or the like, R1 represents a C1-2 alkoxycarbonyl group, acetyl group or the like, Z represents a halogen atom, cyano group or the like, X represents a halogen atom, and n represents an integer of 0 to 3), and industrially advantageous production methods for producing 2-substituted amino-6-halomethylpyridine derivatives and tetrazolyloxime derivatives.Type: GrantFiled: February 5, 2014Date of Patent: April 28, 2015Assignee: Nippon Soda Co., Ltd.Inventors: Hidekazu Miyazaki, Satoru Yanaka, Shiro Tsubokura, Tadashi Sugiura, Kaoru Noda, Kengo Suzuki
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Patent number: 9012653Abstract: Disclosed is a compound containing a pyridine ring that can be synthesized in an industrially advantageous manner, and is useful as an intermediate for producing tetrazolyloxime derivatives that exhibit fungicidal activity (wherein R0 represents a C1-6 alkoxy group, C1-6 alkoxy-C1-6 alkoxy group or the like, R1 represents a C1-2 alkoxycarbonyl group, acetyl group or the like, Z represents a halogen atom, cyano group or the like, X represents a halogen atom, and n represents an integer of 0 to 3), and industrially advantageous production methods for producing 2-substituted amino-6-halomethylpyridine derivatives and tetrazolyloxime derivatives.Type: GrantFiled: February 5, 2014Date of Patent: April 21, 2015Assignee: Nippon Soda Co., Ltd.Inventors: Hidekazu Miyazaki, Satoru Yanaka, Shiro Tsubokura, Tadashi Sugiura, Kaoru Noda, Kengo Suzuki
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Patent number: 9000178Abstract: Disclosed is a compound containing a pyridine ring that can be synthesized in an industrially advantageous manner, and is useful as an intermediate for producing tetrazolyloxime derivatives that exhibit fungicidal activity (wherein R0 represents a C1-6 alkoxy group, C1-6 alkoxy-C1-6 alkoxy group or the like, R1 represents a C1-2 alkoxycarbonyl group, acetyl group or the like, Z represents a halogen atom, cyano group or the like, X represents a halogen atom, and n represents an integer of 0 to 3), and industrially advantageous production methods for producing 2-substituted amino-6-halomethylpyridine derivatives and tetrazolyloxime derivatives.Type: GrantFiled: February 5, 2014Date of Patent: April 7, 2015Assignee: Nippon Soda Co., Ltd.Inventors: Hidekazu Miyazaki, Satoru Yanaka, Shiro Tsubokura, Tadashi Sugiura, Kaoru Noda, Kengo Suzuki
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Patent number: 8981107Abstract: There are provided a nitrogen-containing heterocyclic compound such as a substituted amino-pyridine-N-oxide compound represented by formula (1), which is useful as a synthetic intermediate for an agrochemical and the like; and a method for producing the nitrogen-containing heterocyclic compound. (In formula (1), R1 and R2 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R3 represents a hydrogen atom, an unsubstituted or substituted alkylcarbonyl group or the like; R4 represents an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group or the like; A represents a hydroxyl group, a thiol group or the like; m represents any one of integers of 1 to 4; k represents any one of integers of 0 to 3; and k+m?4.Type: GrantFiled: February 7, 2014Date of Patent: March 17, 2015Assignee: Nippon Soda Co., Ltd.Inventors: Koichi Kutose, Hiroki Inoue, Shiro Tsubokura
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Patent number: 8962848Abstract: Disclosed is a compound containing a pyridine ring that can be synthesized in an industrially advantageous manner, and is useful as an intermediate for producing tetrazolyloxime derivatives that exhibit fungicidal activity (wherein R0 represents a C1-6 alkoxy group, C1-6 alkoxy-C1-6 alkoxy group or the like, R1 represents a C1-2 alkoxycarbonyl group, acetyl group or the like, Z represents a halogen atom, cyano group or the like, X represents a halogen atom, and n represents an integer of 0 to 3), and industrially advantageous production methods for producing 2-substituted amino-6-halomethylpyridine derivatives and tetrazolyloxime derivatives.Type: GrantFiled: February 5, 2014Date of Patent: February 24, 2015Assignee: Nippon Soda Co., Ltd.Inventors: Hidekazu Miyazaki, Satoru Yanaka, Shiro Tsubokura, Tadashi Sugiura, Kaoru Noda, Kengo Suzuki
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Patent number: 8962849Abstract: There are provided a nitrogen-containing heterocyclic compound such as a substituted amino-pyridine-N-oxide compound represented by formula (1), which is useful as a synthetic intermediate for an agrochemical and the like; and a method for producing the nitrogen-containing heterocyclic compound. (In formula (1), R1 and R2 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R3 represents a hydrogen atom, an unsubstituted or substituted alkylcarbonyl group or the like; R4 represents an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group or the like; A represents a hydroxyl group, a thiol group or the like; m represents any one of integers of 1 to 4; k represents any one of integers of 0 to 3; and k+m?4.).Type: GrantFiled: February 7, 2014Date of Patent: February 24, 2015Assignee: Nippon Soda Co., Ltd.Inventors: Koichi Kutose, Hiroki Inoue, Shiro Tsubokura
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Patent number: 8962850Abstract: There are provided a nitrogen-containing heterocyclic compound such as a substituted amino-pyridine-N-oxide compound represented by formula (1), which is useful as a synthetic intermediate for an agrochemical and the like; and a method for producing the nitrogen-containing heterocyclic compound. (In formula (1), R1 and R2 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R3 represents a hydrogen atom, an unsubstituted or substituted alkylcarbonyl group or the like; R4 represents an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group or the like; A represents a hydroxyl group, a thiol group or the like; m represents any one of integers of 1 to 4; k represents any one of integers of 0 to 3; and k+m?4.Type: GrantFiled: February 7, 2014Date of Patent: February 24, 2015Assignee: Nippon Soda Co., Ltd.Inventors: Koichi Kutose, Hiroki Inoue, Shiro Tsubokura
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Patent number: 8841458Abstract: Disclosed is a compound containing a pyridine ring that can be synthesized in an industrially advantageous manner, and is useful as an intermediate for producing tetrazolyloxime derivatives that exhibit fungicidal activity (wherein R0 represents a C1-6 alkoxy group, C1-6 alkoxy-C1-6 alkoxy group or the like, R1 represents a C1-2 alkoxycarbonyl group, acetyl group or the like, Z represents a halogen atom, cyano group or the like, X represents a halogen atom, and n represents an integer of 0 to 3), and industrially advantageous production methods for producing 2-substituted amino-6-halomethylpyridine derivatives and tetrazolyloxime derivatives.Type: GrantFiled: March 11, 2011Date of Patent: September 23, 2014Assignee: Nippon Soda Co., Ltd.Inventors: Hidekazu Miyazaki, Satoru Yanaka, Shiro Tsubokura, Tadashi Sugiura, Kaoru Noda, Kengo Suzuki
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Patent number: 8809544Abstract: There are provided a nitrogen-containing heterocyclic compound such as a substituted amino-pyridine-N-oxide compound represented by formula (1), which is useful as a synthetic intermediate for an agrochemical and the like; and a method for producing the nitrogen-containing heterocyclic compound. (In formula (1), R1 and R2 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R3 represents a hydrogen atom, an unsubstituted or substituted alkylcarbonyl group or the like; R4 represents an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group or the like; A represents a hydroxyl group, a thiol group or the like; m represents any one of integers of 1 to 4; k represents any one of integers of 0 to 3; and k+m?4.Type: GrantFiled: February 7, 2014Date of Patent: August 19, 2014Assignee: Nippon Soda Co., Ltd.Inventors: Koichi Kutose, Hiroki Inoue, Shiro Tsubokura
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Publication number: 20140194629Abstract: There are provided a nitrogen-containing heterocyclic compound such as a substituted amino-pyridine-N-oxide compound represented by formula (1), which is useful as a synthetic intermediate for an agrochemical and the like; and a method for producing the nitrogen-containing heterocyclic compound. (In formula (1), R1 and R2 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R3 represents a hydrogen atom, an unsubstituted or substituted alkylcarbonyl group or the like; R4 represents an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group or the like; A represents a hydroxyl group, a thiol group or the like; m represents any one of integers of 1 to 4; k represents any one of integers of 0 to 3; and k+m?4.Type: ApplicationFiled: February 7, 2014Publication date: July 10, 2014Applicant: Nippon Soda Co., Ltd.Inventors: Koichi KUTOSE, Hiroki INOUE, Shiro TSUBOKURA
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Publication number: 20140171651Abstract: There are provided a nitrogen-containing heterocyclic compound such as a substituted amino-pyridine-N-oxide compound represented by formula (1), which is useful as a synthetic intermediate for an agrochemical and the like; and a method for producing the nitrogen-containing heterocyclic compound. (In formula (1), R1 and R2 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R3 represents a hydrogen atom, an unsubstituted or substituted alkylcarbonyl group or the like; R4 represents an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group or the like; A represents a hydroxyl group, a thiol group or the like; m represents any one of integers of 1 to 4; k represents any one of integers of 0 to 3; and k+m?4.Type: ApplicationFiled: February 7, 2014Publication date: June 19, 2014Applicant: Nippon Soda Co., Ltd.Inventors: Koichi KUTOSE, Hiroki INOUE, Shiro TSUBOKURA
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Publication number: 20140163235Abstract: There are provided a nitrogen-containing heterocyclic compound such as a substituted amino-pyridine-N-oxide compound represented by formula (1), which is useful as a synthetic intermediate for an agrochemical and the like; and a method for producing the nitrogen-containing heterocyclic compound. (In formula (1), R1 and R2 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R3 represents a hydrogen atom, an unsubstituted or substituted alkylcarbonyl group or the like; R4 represents an unsubstituted or substituted alkylcarbonyl group, an unsubstituted or substituted arylcarbonyl group or the like; A represents a hydroxyl group, a thiol group or the like; m represents any one of integers of 1 to 4; k represents any one of integers of 0 to 3; and k+m?4.Type: ApplicationFiled: February 7, 2014Publication date: June 12, 2014Applicant: Nippon Soda Co., Ltd.Inventors: Koichi KUTOSE, Hiroki INOUE, Shiro TSUBOKURA