Patents by Inventor Mayuko Osaki
Mayuko Osaki 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: 10361427Abstract: An all-solid-state battery having an olivine-type positive electrode active material and a sulfur solid electrolyte and a method for producing the all-solid-state battery is provided. The positive electrode active material is a positive electrode active material in which primary particles aggregate into secondary particles. The primary particles have an olivine-type positive electrode active material and a coating layer that coats all or a portion of the olivine-type positive electrode active material. The coating layer contains a transition metal derived from the olivine-type positive electrode active material, lithium, phosphorous and oxygen as components thereof, and the concentration of the transition metal is lower the concentration of the olivine-type positive electrode active material.Type: GrantFiled: September 16, 2016Date of Patent: July 23, 2019Assignee: Toyota Jidosha Kabushiki KaishaInventors: Mayuko Osaki, Yohei Shindo, Manabu Imano, Hideyuki Koga, Hidenori Miki
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Patent number: 10141762Abstract: The all-solid-state battery system that has an all-solid-state battery, the all-solid-state battery having a positive electrode active material layer, a solid electrolyte layer and a negative electrode active material layer, and a control device that controls the lower limit discharge potential of the positive electrode active material layer of the all-solid-state battery. The positive electrode active material layer and/or the solid electrolyte layer have a sulfide solid electrolyte. In addition, the positive electrode active material layer has an olivine-type positive electrode active material. In addition, the capacity of the negative electrode active material layer is lower than the capacity of the positive electrode active material layer. In addition, the control device controls the lower limit discharge potential of the positive electrode active material layer during normal use of the all-solid-state battery to within the range of 1.6 V vs. Li/Li+ to 2.1 V vs. Li/Li+.Type: GrantFiled: November 29, 2016Date of Patent: November 27, 2018Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yohei Shindo, Manabu Imano, Mayuko Osaki, Taishi Shiotsuki
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Patent number: 10128532Abstract: Sulfide solid electrolyte material with favorable ion conductivity, wherein charge and discharge efficiency is inhibited from decreasing. Solves problem by providing a sulfide solid electrolyte material including a Li element, Si element, P element, S element and O element, having peak at position of 2?=29.58°±0.50° in X-ray diffraction measurement using CuK? ray, wherein sulfide solid electrolyte material does not have peak at position of 2?=27.33°±0.50° in X-ray diffraction measurement using CuK? ray, or in case of having peak at position of 2?=27.33°±0.50°, value of IB/IA is 1 or less when diffraction intensity at peak of 2?=29.58°±0.50° is regarded as IA and diffraction intensity at peak of 2?=27.33°±0.50° is regarded as IB; and wherein molar fraction of O element to total of S element and O element is larger than 0.2.Type: GrantFiled: December 18, 2013Date of Patent: November 13, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuki Kato, Mayuko Osaki
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Patent number: 9748602Abstract: A sulfide solid electrolyte material with favorable ion conductivity and high reduction resistance. The object is attained by providing sulfide solid electrolyte material comprising: Li element; Ge element; P element; and S element, wherein the sulfide solid electrolyte material peaks at a position of 2?=29.58°±0.50° in X-ray diffraction measurement using CuK? ray, the sulfide solid electrolyte material does not peak at a position of 2?=27.33°±0.50° in X-ray diffraction measurement using CuK? ray or when diffraction intensity at the peak of 2?=29.58°±0.50° is regarded as IA and diffraction intensity at the peak of 2?=27.33°±0.50° is regarded as IB, a value of IB/IA is less than 1.0, and part of the P element in a crystal phase peaking at the position of 2?=29.58°±0.50° is substituted with a B element.Type: GrantFiled: April 16, 2014Date of Patent: August 29, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mayuko Osaki, Yuki Kato
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Publication number: 20170155127Abstract: The all-solid-state battery system that has an all-solid-state battery, the all-solid-state battery having a positive electrode active material layer, a solid electrolyte layer and a negative electrode active material layer, and a control device that controls the lower limit discharge potential of the positive electrode active material layer of the all-solid-state battery. The positive electrode active material layer and/or the solid electrolyte layer have a sulfide solid electrolyte. In addition, the positive electrode active material layer has an olivine-type positive electrode active material. In addition, the capacity of the negative electrode active material layer is lower than the capacity of the positive electrode active material layer. In addition, the control device controls the lower limit discharge potential of the positive electrode active material layer during normal use of the all-solid-state battery to within the range of 1.6 V vs. Li/Li+ to 2.1 V vs. Li/Li+.Type: ApplicationFiled: November 29, 2016Publication date: June 1, 2017Inventors: Yohei Shindo, Manabu Imano, Mayuko Osaki, Taishi Shiotsuki
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Publication number: 20170084912Abstract: An all-solid-state battery having an olivine-type positive electrode active material and a sulfur solid electrolyte and a method for producing the all-solid-state battery is provided. The positive electrode active material is a positive electrode active material in which primary particles aggregate into secondary particles. The primary particles have an olivine-type positive electrode active material and a coating layer that coats all or a portion of the olivine-type positive electrode active material. The coating layer contains a transition metal derived from the olivine-type positive electrode active material, lithium, phosphorous and oxygen as components thereof, and the concentration of the transition metal is lower the concentration of the olivine-type positive electrode active material.Type: ApplicationFiled: September 16, 2016Publication date: March 23, 2017Inventors: Mayuko Osaki, Yohei Shindo, Manabu Imano, Hideyuki Koga, Hidenori Miki
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Patent number: 9297288Abstract: Provided is an exhaust purification system for an internal combustion engine.Type: GrantFiled: December 16, 2011Date of Patent: March 29, 2016Assignee: Toyota Jidosha Kabushiki KaishaInventors: Mayuko Osaki, Kazutoshi Akashi, Masao Watanabe, Shigeharu Takagi, Takeshi Nobukawa
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Publication number: 20160064771Abstract: A sulfide solid electrolyte material with favorable ion conductivity and high reduction resistance. The object is attained by providing sulfide solid electrolyte material comprising: Li element; Ge element; P element; and S element, wherein the sulfide solid electrolyte material peaks at a position of 2?=29.58°±0.50° in X-ray diffraction measurement using CuK? ray, the sulfide solid electrolyte material does not peak at a position of 2?=27.33°±0.50° in X-ray diffraction measurement using CuK? ray or when diffraction intensity at the peak of 2?=29.58°±0.50° is regarded as IA and diffraction intensity at the peak of 2?=27.33°±0.50° is regarded as IB, a value of IB/IA is less than 1.0, and part of the P element in a crystal phase peaking at the position of 2?=29.58°±0.50° is substituted with a B element.Type: ApplicationFiled: April 16, 2014Publication date: March 3, 2016Inventors: Mayuko OSAKI, Yuki KATO
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Publication number: 20150372345Abstract: Sulfide solid electrolyte material with favorable ion conductivity, wherein charge and discharge efficiency is inhibited from decreasing. Solves problem by providing a sulfide solid electrolyte material including a Li element, Si element, P element, S element and O element, having peak at position of 2?=29.58°±0.50° in X-ray diffraction measurement using CuK? ray, wherein sulfide solid electrolyte material does not have peak at position of 2?=27.33°±0.50° in X-ray diffraction measurement using CuK? ray, or in case of having peak at position of 2?=27.33°±0.50°, value of IB/IA is 1 or less when diffraction intensity at peak of 2?=29.58°±0.50° is regarded as IA and diffraction intensity at peak of 2?=27.33°±0.50° is regarded as IB; and wherein molar fraction of O element to total of S element and O element is larger than 0.2.Type: ApplicationFiled: December 18, 2013Publication date: December 24, 2015Inventors: Yuki KATO, Mayuko OSAKI
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Patent number: 9132419Abstract: [Problem] The present invention provides a NOx purification catalyst which utilizes Ag as one of the catalyst components and exhibits NOx purification performance without adjustment to a special exhaust gas composition, as well as a method of producing the same. [Means for Solution] The present invention provides a nitrogen oxide purification catalyst in which particulates are supported on a metal oxide carrier, wherein the aforementioned particulates consist of Ag and Ni and the aforementioned Ag and Ni are at least partially alloyed. Also provided is a method of producing the aforementioned catalyst, comprising the step of preparing a colloidal suspension in which the ratio of Ag is 10 to 90 at % with respect to the total amount of Ag and Ni.Type: GrantFiled: July 7, 2011Date of Patent: September 15, 2015Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CAMBRIDGE ENTERPRISE LIMITEDInventors: Mayuko Osaki, Yoshiaki Inagaki, Atsushi Tanaka, Brian Johnson, Andrew Wheatley, Maciej Cabaj, Masaya Ibe
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Patent number: 9084988Abstract: The present invention relates to a catalyst able to exhibit an NOx purification performance at a low temperature and/or in an oxidizing atmosphere, that is, a nitrogen oxides purification catalyst composed of particles having an average particle size of 0.2 to 100 nm and including gold atoms and iron atoms in a state of close proximity.Type: GrantFiled: March 13, 2014Date of Patent: July 21, 2015Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CAMBRIDGE ENTERPRISE LIMITEDInventors: Mayuko Osaki, Hirohito Hirata, Naoyuki Hara, Brian Johnson, Andrew Wheatley, Helen Skelton, Muriel Lepage
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Patent number: 9079167Abstract: The invention relates to a catalyst able to exhibit an NOX purification performance at a low temperature and/or in an oxidizing atmosphere, that is, a nitrogen oxide purification catalyst including gold atoms and nickel atoms in a solid and a state of close proximity.Type: GrantFiled: March 13, 2014Date of Patent: July 14, 2015Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CAMBRIDGE ENTERPRISE LIMITEDInventors: Mayuko Osaki, Hirohito Hirata, Naoyuki Hara, Brian Johnson, Andrew Wheatley, Helen Skelton, Muriel Lepage
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Patent number: 9050584Abstract: To provide a production method of a base metal catalyst for exhaust gas purification and with a catalyst activity, in which a base metal-supported catalyst is uniformly supported by a honeycomb substrate. A production method of a catalyst for exhaust gas purification, comprising the steps of preparing a honeycomb substrate having a plurality of cells, preparing a base metal-supported catalyst comprising a carrier supporting a metal containing a base metal having an exhaust gas purification performance, preparing a slurry having a pH of 7 or more by dispersing the base metal-supported catalyst in an aqueous solution, and introducing the slurry to a partition wall surface of the honeycomb substrate.Type: GrantFiled: January 15, 2013Date of Patent: June 9, 2015Assignee: Toyota Jidosha Kabushiki Kabushiki KaishaInventors: Mayuko Osaki, Michio Miura
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Publication number: 20140342902Abstract: To provide a production method of a base metal catalyst for exhaust gas purification and with a catalyst activity, in which a base metal-supported catalyst is uniformly supported by a honeycomb substrate. A production method of a catalyst for exhaust gas purification, comprising the steps of preparing a honeycomb substrate having a plurality of cells, preparing a base metal-supported catalyst comprising a carrier supporting a metal containing a base metal having an exhaust gas purification performance, preparing a slurry having a pH of 7 or more by dispersing the base metal-supported catalyst in an aqueous solution, and introducing the slurry to a partition wall surface of the honeycomb substrate.Type: ApplicationFiled: January 15, 2013Publication date: November 20, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mayuko Osaki, Michio Miura
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Publication number: 20140328726Abstract: An exhaust gas purification system uses an NOx purification apparatus for reducing the amount of precious metal used and exhibits an NOx purification performance at a low temperature and/or in an oxidizing atmosphere, and provides NOx purification performance even by an exhaust gas composition including HC and NOx at the time of a non-steady operation. An exhaust gas purification system using an NOx purification apparatus with an NOx purification catalyst in an exhaust gas passage has a carrier for nanoparticles including gold atoms and nickel atoms in close proximity and an apparatus for predicting the amount of exhaust of NOx. When it is predicted that NOx will be exhausted, carbon monoxide is increased in the exhaust gas fed to the NOx purification catalyst, and, when it is predicted that NOx will not be exhausted, exhaust gas exhausted from an engine is purified without injection of excess fuel.Type: ApplicationFiled: July 18, 2014Publication date: November 6, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mayuko OSAKI, Muriel LEPAGE
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Publication number: 20140305105Abstract: An exhaust gas purification system provided with an NOX purification catalyst reducing the amount of use of precious metals and/or able to exhibit an NOX purification performance at a low temperature and/or in an oxidizing atmosphere and having an NOX purification performance even for an exhaust gas composition containing hydrocarbons and oxygen together with a low temperature and/or oxidizing atmosphere, that is, an exhaust gas purification system provided with an NOX purification catalyst provided in an exhaust gas passage and comprised of carrier particles on which nanoparticles in which gold atoms and nickel atoms are included in a state in close proximity are carried and an oxidation catalyst oxidizing hydrocarbons in exhaust gas at a position at an upstream side of the NOX purification catalyst.Type: ApplicationFiled: June 27, 2014Publication date: October 16, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mayuko OSAKI, Hirohito HIRATA, Muriel LEPAGE
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Publication number: 20140216013Abstract: Provided is an exhaust purification system for an internal combustion engine.Type: ApplicationFiled: December 16, 2011Publication date: August 7, 2014Inventors: Mayuko Osaki, Kazutoshi Akashi, Masao Watanabe, Shigeharu Tagagi, Takeshi Nobukawa
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Publication number: 20140194280Abstract: The present invention relates to a catalyst able to exhibit an NOx purification performance at a low temperature and/or in an oxidizing atmosphere, that is, a nitrogen oxides purification catalyst composed of particles having an average particle size of 0.2 to 100 nm and including gold atoms and iron atoms in a state of close proximity.Type: ApplicationFiled: March 13, 2014Publication date: July 10, 2014Applicants: CAMBRIDGE ENTERPRISE LIMITED, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mayuko OSAKI, Hirohito HIRATA, Naoyuki HARA, Brian JOHNSON, Andrew WHEATLEY, Helen SKELTON, Muriel LEPAGE
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Publication number: 20140194281Abstract: The invention relates to a catalyst able to exhibit an NOX purification performance at a low temperature and/or in an oxidizing atmosphere, that is, a nitrogen oxide purification catalyst including gold atoms and nickel atoms in a solid and a state of close proximity.Type: ApplicationFiled: March 13, 2014Publication date: July 10, 2014Applicants: CAMBRIDGE ENTERPRISE LIMITED, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mayuko OSAKI, Hirohito HIRATA, Naoyuki HARA, Brian JOHNSON, Andrew WHEATLEY, Helen SKELTON, Muriel LEPAGE
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Publication number: 20140113808Abstract: [Problem] The present invention provides a NOx purification catalyst which utilizes Ag as one of the catalyst components and exhibits NOx purification performance without adjustment to a special exhaust gas composition, as well as a method of producing the same. [Means for Solution] The present invention provides a nitrogen oxide purification catalyst in which particulates are supported on a metal oxide carrier, wherein the aforementioned particulates consist of Ag and Ni and the aforementioned Ag and Ni are at least partially alloyed. Also provided is a method of producing the aforementioned catalyst, comprising the step of preparing a colloidal suspension in which the ratio of Ag is 10 to 90 at % with respect to the total amount of Ag and Ni.Type: ApplicationFiled: July 7, 2011Publication date: April 24, 2014Applicants: CAMBRIDGE ENTERPRISE LIMITED, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mayuko Osaki, Yoshiaki Inagaki, Atsushi Tanaka, Brian Johnson, Andrew Wheatley, Maciej Cabaj, Masaya Ibe