Patents by Inventor Futoshi Utsuno
Futoshi Utsuno 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: 12183879Abstract: A sulfide solid electrolyte that contains lithium, phosphorus, sulfur, chlorine and bromine, wherein in powder X-ray diffraction analysis using CuK? rays, it has a diffraction peak A at 2?=25.2±0.5 deg and a diffraction peak B at 2?=29.7±0.5 deg, the diffraction peak A and the diffraction peak B satisfy the following formula (A), and a molar ratio of the chlorine to the phosphorus “c (Cl/P)” and a molar ratio of the bromine to the phosphorus “d (Br/P)” satisfies the following formula (1): 1.2<c+d<1.9??(1) 0.845<SA/SB<1.200??(A) where SA is an area of the diffraction peak A and SB is an area of the diffraction peak B.Type: GrantFiled: February 28, 2023Date of Patent: December 31, 2024Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Futoshi Utsuno, Kota Terai, Takashi Umeki, Masaru Nakagawa, Hiroshi Yamaguchi
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Publication number: 20240332603Abstract: Provided is a sulfide solid electrolyte that has a novel crystal structure and exhibits an ionic conductivity, the sulfide solid electrolyte containing a lithium atom, a phosphorus atom, a sulfur atom, and at least one kind of halogen atom selected from a chlorine atom and a bromine atom, and having a specific diffraction peak in powdery X-ray diffractometry using CuK? line, and a method for producing a sulfide solid electrolyte, the method including mixing a solvent 1 having a heteroatom and a raw material 1 containing specific atoms to prepare a mixture, preparing a solution that contains a raw material 2 containing a halogen atom and a solvent 2 having a heteroatom, mixing the mixture and the solution to prepare a fluid, and heating the fluid.Type: ApplicationFiled: July 14, 2022Publication date: October 3, 2024Applicants: IDEMITSU KOSAN CO.,LTD., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Kota TERAI, Futoshi UTSUNO, Hiroyuki HIGUCHI, Kiyoharu TADANAGA, Akira MIURA, Nataly Carolina ROSERO NAVARRO
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Publication number: 20240222633Abstract: One of the purposes of the present invention is to provide: a compound which can be used as a binder having ion conductivity; and a battery which contains the compound. One aspect of the present invention is a compound comprising P and S as constituent elements, a group comprising one or more elements selected from the group consisting of O, N and halogen, the group bonding to the P, and a disulfide bond.Type: ApplicationFiled: April 22, 2022Publication date: July 4, 2024Applicants: IDEMITSU KOSAN CO., LTD., OSAKA RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Atsutaka KATO, Mari YAMAMOTO, Masanari TAKAHASHI, Futoshi UTSUNO, Hiroyuki HIGUCHI
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Publication number: 20240182316Abstract: A method for producing a lithium compound, by which a high purity lithium compound can be produced from low-grade lithium carbonate containing impurities, such as salt water. The method includes: mixing lithium carbonate, an acid containing an organic acid, and water in a reaction tank 1 to produce an aqueous organic acid lithium solution containing an organic acid lithium; mixing the organic acid lithium and a metal hydroxide in a reaction tank 2 to produce an aqueous lithium hydroxide solution; and returning an organic acid, which is regenerated by using an electrochemical device from an organic acid metal by-produced by producing the aqueous lithium hydroxide solution to the reaction tank 1 and using the regenerated organic acid as the organic acid. An apparatus for producing a lithium compound, including the reaction tank 1, the reaction tank 2, the electrochemical device, and a return pipe, which each have a specific function.Type: ApplicationFiled: April 1, 2022Publication date: June 6, 2024Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: Hideki YAMAMOTO, Futoshi UTSUNO, Daisuke MORI, Hiroyuki HIGUCHI
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Patent number: 11916191Abstract: A method for producing a sulfide solid electrolyte having an argyrodite-type crystal structure may involve: mixing a raw material containing elemental phosphorus at an integrated power of 0.5 kWh/kg or more, and heat-treating a precursor obtained in the mixing at 350 to 500° C.Type: GrantFiled: March 1, 2019Date of Patent: February 27, 2024Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Takayoshi Kambara, Minoru Senga, Katsuhito Kondo, Naoya Masuda, Hironari Kimpara, Futoshi Utsuno, Hiroyuki Tamura
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Publication number: 20240051838Abstract: A method of producing lithium hydroxide using a variety of aqueous solutions as a source liquid. The method includes: providing a lithium ion extraction liquid, including a first mixing of an aqueous solution containing lithium and at least one kind of an element other than lithium and a base in a reaction tank, with a pH regulated to 6 or more and 10 or less, a second mixing of the aqueous solution and the base, with a pH regulated to 12 or more, and removal of a hydroxide of the element other than lithium formed through the first and second mixing; recovering only lithium ion from the lithium ion extraction liquid to a recovery liquid with an electrochemical device including a Li-selectively permeable membrane; and performing the regulation of pH by returning the lithium ion extraction liquid after recovering lithium ion with the electrochemical device to the reaction tank.Type: ApplicationFiled: March 25, 2022Publication date: February 15, 2024Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: Shota HOSHI, Daisuke MORI, Futoshi UTSUNO, Atsushi SATO, Satoshi KATSUMATA
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Publication number: 20240010813Abstract: A resin composition containing a compound including phosphorus and sulfur as constituent elements and having a disulfide bond, and a thermoplastic resin.Type: ApplicationFiled: November 5, 2021Publication date: January 11, 2024Applicants: IDEMITSU KOSAN CO.,LTD., OSAKA RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Atsutaka KATO, Mari YAMAMOTO, Masanari TAKAHASHI, Futoshi UTSUNO, Hiroyuki HIGUCHI
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Publication number: 20230406718Abstract: Provided is a lithium hydroxide production method for producing high-purity lithium hydroxide efficiently and at a lower energy, wherein Li ions alone are recovered in a recovery liquid from a lithium ion extract extracted from a processed member of a lithium secondary battery, using a Li permselective membrane, and lithium hydroxide is produced from the recovery liquid.Type: ApplicationFiled: November 5, 2021Publication date: December 21, 2023Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: Daisuke MORI, Masashi MACHIDA, Futoshi UTSUNO, Tsuyoshi HOSHINO
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Publication number: 20230282876Abstract: A sulfide solid electrolyte that contains lithium, phosphorus, sulfur, chlorine and bromine, wherein in powder X-ray diffraction analysis using CuK? rays, it has a diffraction peak A at 2?=25.2±0.5 deg and a diffraction peak B at 2?=29.7±0.5 deg, the diffraction peak A and the diffraction peak B satisfy the following formula (A), and a molar ratio of the chlorine to the phosphorus “c (Cl/P)” and a molar ratio of the bromine to the phosphorus “d (Br/P)” satisfies the following formula (1): 1.2<c+d<1.9??(1) 0.845<SA/SB<1.200??(A) where SA is an area of the diffraction peak A and SB is an area of the diffraction peak B.Type: ApplicationFiled: February 28, 2023Publication date: September 7, 2023Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: Futoshi UTSUNO, Kota TERAI, Takashi UMEKI, Masaru NAKAGAWA, Hiroshi YAMAGUCHI
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Publication number: 20230183876Abstract: A Li ion recovery member and a Li recovery device may prevent occurrence of breakage of a permselective membrane and implement stable Li ion recovery for a long period of time even when a size of a Li recovery device is increased. The Li ion recovery member may include: a permselective membrane including a Li ion conductor made of an inorganic substance; electrodes; and a reticular elastic body, in which the electrodes are provided on at least one main surface side of the permselective membrane, at least one electrode of the electrodes is a porous electrode or a membrane electrode, and the porous electrode or the membrane electrode is sandwiched between the reticular elastic body and the permselective membrane. The Li recovery device may include a Li ion recovery electrolytic cell including the Li ion recovery member and configured to recover Li ions by electrodialysis.Type: ApplicationFiled: April 9, 2021Publication date: June 15, 2023Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: Futoshi UTSUNO, Satoshi KATSUMATA, Tsuyoshi HOSHINO
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Publication number: 20230178794Abstract: To provide an electrode composite material that is excellent in conductivity through the excellent contact state of a solid electrolyte and an electrode active material, and is capable of exhibiting a high battery capability, containing the sulfide solid electrolyte and the electrode active material, having an electron conductivity parameter X represented by the prescribed expression satisfying 0.30?X?2.10.Type: ApplicationFiled: February 17, 2021Publication date: June 8, 2023Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: Naoya MASUDA, Futoshi UTSUNO, Hiroyuki HIGUCHI
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Publication number: 20230155244Abstract: An ion recovery device including an ion selective permeable membrane with an ion conductive layer containing a lithium ion conductor formed of an inorganic substance, and a support layer is formed of a porous body wherein the ion selective permeable membrane has a configuration (I). In configuration (I) the ion conductive layer is provided in contact with one principal surface side of a support layer, and an electrode is provided in contact with another principal surface side opposite to the one principal surface side on which the ion conductive layer is provided.Type: ApplicationFiled: April 7, 2021Publication date: May 18, 2023Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: Futoshi UTSUNO, Qingxin JIA, Ichitaro WAKI, Hiroshi TOMITA
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Patent number: 11652236Abstract: A sulfide solid electrolyte may include lithium, phosphorus and sulfur, and the sulfide solid electrolyte may have a diffraction peak A at 2?=25.2±0.5 deg and a diffraction peak B at 29.7±0.5 deg in powder X-ray diffraction using CuK? rays, and a crystallite diameter in a range of from 5 to 20 nm.Type: GrantFiled: February 2, 2022Date of Patent: May 16, 2023Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Kota Terai, Atsushi Sato, Futoshi Utsuno
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Patent number: 11637312Abstract: A sulfide solid electrolyte containing the following (A) and (B): (A) a sulfide solid electrolyte having an argyrodite-type crystal structure; and (B) a sulfide solid electrolyte having a crystal structure different from the argyrodite-type crystal structure of the above-mentioned (A).Type: GrantFiled: June 18, 2018Date of Patent: April 25, 2023Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Atsushi Sato, Kota Terai, Futoshi Utsuno
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Patent number: 11626616Abstract: A sulfide solid electrolyte that contains lithium, phosphorus, sulfur, chlorine and bromine, wherein in powder X-ray diffraction analysis using CuK? rays, it has a diffraction peak A at 2?=25.2±0.5 deg and a diffraction peak B at 2?=29.7±0.5 deg, the diffraction peak A and the diffraction peak B satisfy the following formula (A), and a molar ratio of the chlorine to the phosphorus “c (Cl/P)” and a molar ratio of the bromine to the phosphorus “d (Br/P)” satisfies the following formula (1): 1.2<c+d<1.9??(1) 0.845<SA/SB<1.200??(A) where SA is an area of the diffraction peak A and SB is an area of the diffraction peak B.Type: GrantFiled: January 10, 2022Date of Patent: April 11, 2023Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Futoshi Utsuno, Kota Terai, Takashi Umeki, Masaru Nakagawa, Hiroshi Yamaguchi
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Publication number: 20220376291Abstract: A compound comprising phosphorus atoms and sulfur atoms as constituent elements and having a peak in Raman spectroscopy, the peak being attributable to a disulfide bond bonding between two phosphorus atoms.Type: ApplicationFiled: July 17, 2020Publication date: November 24, 2022Applicants: IDEMITSU KOSAN CO.,LTD., OSAKA RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Atsutaka KATO, Mari YAMAMOTO, Masanari TAKAHASHI, Futoshi UTSUNO, Hiroyuki HIGUCHI
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Publication number: 20220367907Abstract: Provided is a sulfide solid electrolyte containing lithium, phosphorus, sulfur and chlorine, in which a molar ratio of the chlorine to the phosphorus, c (Cl/P), is greater than 1.0 and 1.9 or less, the sulfide solid electrolyte includes an argyrodite-type crystal structure, and a lattice constant of the argyrodite-type crystal structure is 9.820 ? or less.Type: ApplicationFiled: July 22, 2022Publication date: November 17, 2022Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: Futoshi UTSUNO, Akiko NAKATA, Kota TERAI, Masaru NAKAGAWA
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Patent number: 11444317Abstract: Provided is a sulfide solid electrolyte containing lithium, phosphorus, sulfur and chlorine, in which a molar ratio of the chlorine to the phosphorus, c (Cl/P), is greater than 1.0 and 1.9 or less, the sulfide solid electrolyte includes an argyrodite-type crystal structure, and a lattice constant of the argyrodite-type crystal structure is 9.820 ? or less.Type: GrantFiled: August 8, 2017Date of Patent: September 13, 2022Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Futoshi Utsuno, Akiko Nakata, Kota Terai, Masaru Nakagawa
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Publication number: 20220255062Abstract: To provide an electrode composite material capable of exhibiting a high battery capability, containing a particular crystalline sulfide solid electrolyte and an electrode active material, and a method for producing an electrode composite material, including; firstly mixing a raw material inclusion containing at least one kind of a lithium element, a sulfur element, and a phosphorus element, with a complexing agent, so as to form an electrolyte precursor; heating to decomplex the electrolyte precursor; and secondly mixing a decomplexed material obtained through the decomplexing, with an electrode active material.Type: ApplicationFiled: July 30, 2020Publication date: August 11, 2022Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Naoya MASUDA, Futoshi UTSUNO
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Patent number: 11387486Abstract: A sulfide solid electrolyte comprising lithium, phosphorus and sulfur, wherein the sulfide solid electrolyte has a diffraction peak A at 2?=25.2±0.5 deg and a diffraction peak B at 29.7±0.5 deg in powder X-ray diffraction using CuK? rays, an area ratio of a peak derived from PS43? glass to the total area of peaks derived from glass observed in solid 31P-NMR measurement is 90% or more and 100% or less, and an area ratio of peaks derived from glass to the total area of all peaks at 60 to 120 ppm observed in solid 31P-NMR measurement is 1% or more and 45% or less.Type: GrantFiled: August 6, 2018Date of Patent: July 12, 2022Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Futoshi Utsuno, Toshiaki Tsuno, Kota Terai, Atsushi Sato