Patents by Inventor Shota TOTSUKA
Shota TOTSUKA 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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Publication number: 20240079640Abstract: Provided is a method for producing a sulfide solid electrolyte that is superior in productivity and that has a small particle diameter. The method for producing a sulfide solid electrolyte includes mixing a raw material-containing matter that contains a lithium atom, a phosphorus atom, and a sulfur atom with a first solvent to provide a precursor-containing mixture, mixing the precursor-containing mixture with a second solvent that is incompatible with the first solvent to provide an emulsion, and removing the first solvent and the second solvent from the emulsion.Type: ApplicationFiled: June 29, 2023Publication date: March 7, 2024Applicant: IDEMITSU KOSAN CO.,LTD.Inventor: Shota Totsuka
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Publication number: 20240030486Abstract: Provided is a method for producing a sulfide solid electrolyte having excellent productivity and having a particularly small particle size, including mixing a raw material inclusion containing a lithium atom, a sulfur atom, a phosphorus atom, and a halogen atom to obtain an electrolyte precursor, and heating the electrolyte precursor in the presence of a solvent and a dispersant having 8 or more carbon atoms in a molecule thereof in a sealed pressure resistant vessel.Type: ApplicationFiled: May 26, 2023Publication date: January 25, 2024Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: TARO YAMAKI, Yoshikatsu SEINO, Shota TOTSUKA, Manabu TANAKA, Hironari KIMPARA
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Patent number: 11623864Abstract: A method of production of a solid electrolyte, which comprises: a step of obtaining a mixture comprising a sulfide solid electrolyte and a tertiary alcohol including 9 or less carbon atoms, and a step of removing the tertiary alcohol from the mixture.Type: GrantFiled: August 6, 2020Date of Patent: April 11, 2023Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Hiroaki Yamada, Hironari Kimpara, Shota Totsuka, Atsushi Sato
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Publication number: 20220344703Abstract: A method of production of a solid electrolyte having an Argyrodite-type crystal structure, including steps of mixing raw materials such that lithium (Li), phosphorus (P), sulfur (S), oxygen (O), and halogen (X) satisfy the following formulas (11) to (14) to obtain a mixture; and heating the mixture: 4.8?Li/P?5.3??(11) 3.8?S/P?4.4??(12) 0<O/P?0.8??(13) 1.0<X/P?2.0??(14) wherein the formula (11) represents a molar ratio of Li to P, the formula (12) represents a molar ratio of S to P, the formula (13) represents a molar ratio of O to P, and the formula (14) represents a molar ratio of halogen (X) to P.Type: ApplicationFiled: September 18, 2020Publication date: October 27, 2022Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Hironari KIMPARA, Shota TOTSUKA, Atsushi SATO, Naoya MASUDA, Atsushi YAO
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Publication number: 20220336848Abstract: The present invention relates to a method for producing a crystalline solid electrolyte having a small particle diameter and also having a high ionic conductivity and containing a lithium element, a sulfur element, a phosphorus element and a halogen element, the method including a complexing step of mixing a solid electrolyte raw material and a complexing agent in a liquid phase, wherein the method includes a mixing step of obtaining a precursor containing a lithium element, a sulfur element, and a phosphorus element; and a crystallization step of heating the precursor in a solvent using a pressure-resistant container or while refluxing.Type: ApplicationFiled: September 17, 2020Publication date: October 20, 2022Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Shota TOTSUKA, Hironari KIMPARA, Masayuki SHIBATA
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Publication number: 20220311049Abstract: A method for producing a solid electrolyte having an argyrodite-type crystal structure, the method comprising: heat-treating a raw material mixture comprising lithium, sulfur, phosphorus and halogen in a solvent using a pressure-resistant container or under refluxing; removing the solvent; and firing a treated product obtained by the heat treatment.Type: ApplicationFiled: June 15, 2022Publication date: September 29, 2022Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: Naoya MASUDA, Junpei MARUYAMA, Hironari KIMPARA, Shota TOTSUKA, Atsushi YAO
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Publication number: 20220285724Abstract: A method for producing a solid electrolyte, which comprises: a step of mixing an anionic surfactant which is a monomer or an oligomer, a solvent, and a sulfide solid electrolyte to obtain a mixture; and a step of removing the solvent from the mixture.Type: ApplicationFiled: August 6, 2020Publication date: September 8, 2022Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Shota TOTSUKA, Atsushi SATO, Hironari KIMPARA
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Patent number: 11380934Abstract: A method for producing a solid electrolyte having an argyrodite-type crystal structure, the method comprising: heat-treating a raw material mixture comprising lithium, sulfur, phosphorus and halogen in a solvent using a pressure-resistant container or under refluxing; removing the solvent; and firing a treated product obtained by the heat treatment.Type: GrantFiled: December 4, 2019Date of Patent: July 5, 2022Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Naoya Masuda, Junpei Maruyama, Hironari Kimpara, Shota Totsuka, Atsushi Yao
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Publication number: 20210284534Abstract: A method of production of a solid electrolyte, which comprises: a step of obtaining a mixture comprising a sulfide solid electrolyte and a tertiary alcohol including 9 or less carbon atoms, and a step of removing the tertiary alcohol from the mixture.Type: ApplicationFiled: August 6, 2020Publication date: September 16, 2021Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Hiroaki YAMADA, Hironari KIMPARA, Shota TOTSUKA, Atsushi SATO
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Publication number: 20200185767Abstract: A method for producing a solid electrolyte having an argyrodite-type crystal structure, the method comprising: heat-treating a raw material mixture comprising lithium, sulfur, phosphorus and halogen in a solvent using a pressure-resistant container or under refluxing; removing the solvent; and firing a treated product obtained by the heat treatment.Type: ApplicationFiled: December 4, 2019Publication date: June 11, 2020Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Naoya MASUDA, Junpei Maruyama, Hironari Kimpara, Shota Totsuka, Atsushi Yao
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Publication number: 20180358653Abstract: A method for producing a solid electrolyte comprises heat-treating a raw material comprising lithium, sulfur, and phosphorus as constituent elements in a flowing state, thereby manufacturing a sulfide solid electrolyte comprising an argyrodite type crystal structure.Type: ApplicationFiled: June 5, 2018Publication date: December 13, 2018Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Junpei MARUYAMA, Masao AIDA, Shota TOTSUKA, Naoya MASUDA
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Patent number: 8535812Abstract: A conductive composition including: a solvent; a ?-conjugated conductive polymer having a chlorine content of 0.6 wt % or less; and a compound represented by the following formula (1); wherein the ?-conjugated conductive polymer is dissolved and the weight ratio of the compound represented by the formula (1) to the ?-conjugated conductive polymer (compound represented by the formula (1)/?-conjugated conductive polymer) is 0.01 to 22.0.Type: GrantFiled: March 7, 2012Date of Patent: September 17, 2013Assignee: Idemitsu Kosan Co., Ltd.Inventors: Shota Totsuka, Toru Bando, Shinobu Yamao, Mitsutake Nakamura
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Publication number: 20120225310Abstract: A conductive composition including: a solvent; a ?-conjugated conductive polymer having a chlorine content of 0.6 wt % or less; and a compound represented by the following formula (1); wherein the ?-conjugated conductive polymer is dissolved and the weight ratio of the compound represented by the formula (1) to the ?-conjugated conductive polymer (compound represented by the formula (1)/?-conjugated conductive polymer) is 0.01 to 22.0.Type: ApplicationFiled: March 7, 2012Publication date: September 6, 2012Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Shota TOTSUKA, Toru Bando, Shinobu Yamao, Mitsutake Nakamura