Patents by Inventor Tsutomu Nanmyo
Tsutomu Nanmyo 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: 9073828Abstract: In a method for obtaining an alkali metal perfluoroalkanesulfinate by reacting a perfluoroalkanesulfonyl halide with a sulfur-containing reducing agent in the presence of water, a reaction liquid containing the alkali metal sulfinate obtained after the reaction is concentrated till a specific concentration, thereby inorganic salts, which are impurities in the solution, are precipitated and removed, and a filtrate after removing the inorganic salts is subjected to an operation such as concentration and drying, thereby obtaining the target alkali metal perfluorosulfinate with a high purity and a good operability. Furthermore, an organic solvent for extraction becomes unnecessary. Therefore, it is possible to greatly reduce wastes.Type: GrantFiled: March 3, 2011Date of Patent: July 7, 2015Assignee: Central Glass Company, LimitedInventors: Takashi Kashiwaba, Tsutomu Nanmyo, Yoichi Takenaka
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Patent number: 8987507Abstract: Disclosed is a method for producing a fluoroalkanesulfonic acid including (1) the step of reacting concentrated sulfuric acid and/or fuming sulfuric acid with a fluoroalkanesulfonate to cause an acid decomposition, thereby obtaining a reaction mixture containing the fluoroalkanesulfonic acid and a sulfur component; and (2) the step of adding an oxidizing agent to the reaction mixture obtained by the above step and then conducting a distillation, thereby obtaining the fluoroalkanesulfonic acid from the reaction mixture. It is possible by this method to efficiently reduce the sulfur component, thereby industrially advantageously obtaining fluoroalkanesulfonic acid of high purity.Type: GrantFiled: August 2, 2012Date of Patent: March 24, 2015Assignee: Central Glass Company, LimitedInventors: Tatsuya Irie, Kenji Isoyama, Tatsuo Miyazaki, Takashi Kashiwaba, Tsutomu Nanmyo
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Patent number: 8840856Abstract: To provide an imide salt represented by the formula wherein, R represents a halosulfonyl group (—SO2X1 where X1 is a halogen such as fluorine, chlorine, bromine and iodine) or dihalophosphoryl group (—POX2X3 where X2 and X3 are the same or different halogens such as fluorine, chlorine, bromine and iodine), and M represents an alkali metal; with high selectivity and high efficiency by using a low-cost starting material. In the production of an imide salt, an alkali metal fluoride, a sulfuryl halide or phosphoryl halide, and ammonia or an ammonium salt are reacted. According to this method, a desired imide salt can be produced with high yield, while greatly suppressing the production of a by-product.Type: GrantFiled: June 1, 2010Date of Patent: September 23, 2014Assignee: Central Glass Company, LimitedInventors: Takayoshi Morinaka, Tsutomu Nanmyo
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Patent number: 8815199Abstract: Disclosed is a method for producing “a salt or a complex comprising imide and an organic base”, characterized by reacting halogenated sulfuryl or halogenated phosphoryl with ammonia in the presence of an organic base. According to this method, a target imide compound can be produced in a high yield while significantly suppressing the production of by-products. Further, by reacting the obtained imide compound with an alkali metal hydroxide or an alkaline earth metal hydroxide, an imide metal salt can be easily derived.Type: GrantFiled: March 29, 2010Date of Patent: August 26, 2014Assignee: Central Glass Company, LimitedInventors: Takayoshi Morinaka, Tsutomu Nanmyo
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Publication number: 20140171678Abstract: Disclosed is a method for producing a fluoroalkanesulfonic acid including (1) the step of reacting concentrated sulfuric acid and/or fuming sulfuric acid with a fluoroalkanesulfonate to cause an acid decomposition, thereby obtaining a reaction mixture containing the fluoroalkanesulfonic acid and a sulfur component; and (2) the step of adding an oxidizing agent to the reaction mixture obtained by the above step and then conducting a distillation, thereby obtaining the fluoroalkanesulfonic acid from the reaction mixture. It is possible by this method to efficiently reduce the sulfur component, thereby industrially advantageously obtaining fluoroalkanesulfonic acid of high purity.Type: ApplicationFiled: August 2, 2012Publication date: June 19, 2014Applicant: Central Glass Company, LimitedInventors: Tatsuya Irie, Kenji Isoyama, Tatsuo Miyazaki, Takashi Kashiwaba, Tsutomu Nanmyo
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Publication number: 20130023695Abstract: In a method for obtaining an alkali metal perfluoroalkanesulfinate by reacting a perfluoroalkanesulfonyl halide with a sulfur-containing reducing agent in the presence of water, a reaction liquid containing the alkali metal sulfinate obtained after the reaction is concentrated till a specific concentration, thereby inorganic salts, which are impurities in the solution, are precipitated and removed, and a filtrate after removing the inorganic salts is subjected to an operation such as concentration and drying, thereby obtaining the target alkali metal perfluorosulfinate with a high purity and a good operability. Furthermore, an organic solvent for extraction becomes unnecessary. Therefore, it is possible to greatly reduce wastes.Type: ApplicationFiled: March 3, 2011Publication date: January 24, 2013Applicant: CENTRAL GLASS COMPANY, LIMITEDInventors: Takashi Kashiwaba, Tsutomu Nanmyo, Yoichi Takenaka
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Patent number: 8304580Abstract: There is provided a method for producing a tris(perfluoroalkanesulfonyl)methide acid salt represented by formula [1], including the steps of (a) reacting a methylmagnesium halide represented by formula [2] with a perfluoroalkanesulfonyl fluoride represented by formula [3], thereby obtaining a reaction mixture; and (b) directly reacting the obtained reaction mixture with at least one selected from the group consisting of alkali metal halides, quaternary ammonium salts, and quaternary phosphonium salts. By this method, it is possible to easily produce the target methide acid salt with high yield.Type: GrantFiled: December 18, 2007Date of Patent: November 6, 2012Assignee: Central Glass Company, LimitedInventors: Tsutomu Nanmyo, Shintaro Sasaki, Takashi Kume
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Publication number: 20120070358Abstract: To provide an imide salt represented by the formula wherein, R represents a halosulfonyl group (—SO2X1 where X1 is a halogen such as fluorine, chlorine, bromine and iodine) or dihalophosphoryl group (—POX2X3 where X2 and X3 are the same or different halogens such as fluorine, chlorine, bromine and iodine), and M represents an alkali metal; with high selectivity and high efficiency by using a low-cost starting material. In the production of an imide salt, an alkali metal fluoride, a sulfuryl halide or phosphoryl halide, and ammonia or an ammonium salt are reacted. According to this method, a desired imide salt can be produced with high yield, while greatly suppressing the production of a by-product.Type: ApplicationFiled: June 1, 2010Publication date: March 22, 2012Applicant: CENTRAL GLASS COMPANY LTD.Inventors: Takayoshi Morinaka, Tsutomu Nanmyo
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Publication number: 20120020867Abstract: Disclosed is a method for producing “a salt or a complex comprising imide and an organic base”, characterized by reacting halogenated sulfuryl or halogenated phosphoryl with ammonia in the presence of an organic base. According to this method, a target imide compound can be produced in a high yield while significantly suppressing the production of by-products. Further, by reacting the obtained imide compound with an alkali metal hydroxide or an alkaline earth metal hydroxide, an imide metal salt can be easily derived.Type: ApplicationFiled: March 29, 2010Publication date: January 26, 2012Applicant: Central Glass Company, LimitedInventors: Takayoshi Morinaka, Tsutomu Nanmyo
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Publication number: 20100022803Abstract: There is provided a method for producing a tris(perfluoroalkanesulfonyl)methide acid salt represented by formula [1], including the steps of (a) reacting a methylmagnesium halide represented by formula [2] with a perfluoroalkanesulfonyl fluoride represented by formula [3], thereby obtaining a reaction mixture; and (b) directly reacting the obtained reaction mixture with at least one selected from the group consisting of alkali metal halides, quaternary ammonium salts, and quaternary phosphonium salts. By this method, it is possible to easily produce the target methide acid salt with high yield.Type: ApplicationFiled: December 18, 2007Publication date: January 28, 2010Applicant: Central Glass Company, LimitedInventors: Tsutomu Nanmyo, Shintaro Sasaki, Takashi Kume