Patents by Inventor Naoki Seki
Naoki Seki 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: 20240038974Abstract: Composite particles for a non-aqueous electrolyte secondary battery include a lithium zirconate phase, and a silicon phase dispersed in the lithium zirconate phase. In the composite particles, a content proportion MZr of zirconium in all elements other than oxygen is, for example, 14.6 mass % or more and 54.6 mass % or less, and a content proportion MLi of lithium in all elements other than oxygen is, for example, 0.9 mass % or more and 10.4. mass % or less.Type: ApplicationFiled: October 8, 2021Publication date: February 1, 2024Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Toshiki Kamidaira, Taisuke Asano, Naoki Seki
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Publication number: 20240021806Abstract: A negative electrode active material for a non-aqueous electrolyte secondary battery includes composite particles containing a lithium aluminate phase, and a silicon phase dispersed in the lithium aluminate phase.Type: ApplicationFiled: September 22, 2021Publication date: January 18, 2024Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Taisuke ASANO, Toshiki KAMIDAIRA, Naoki SEKI
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Patent number: 11867119Abstract: An electric generator equipped in a multi-shaft gas turbine engine for aircraft, includes: a rotor attached to the rear end portion of a low-pressure shaft rotatably supported by a bearing in the gas turbine engine; a stator provided around the rotor; wherein the electric generator has no structure to support the low-pressure shaft and the rotor.Type: GrantFiled: February 10, 2022Date of Patent: January 9, 2024Assignee: IHI CorporationInventor: Naoki Seki
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Patent number: 11867124Abstract: A fuel supply control device (10) is configured to generate an operation amount used for feedback-controlling rotation of a gear pump (3) based on a deviation of a detected fuel flow rate with respect to a target flow rate, wherein the fuel supply control device generates the operation amount such that a rotation speed of the gear pump is equal to or greater than a predetermined lower limit rotation speed Nmin so as to protect a bearing of the gear pump.Type: GrantFiled: December 26, 2019Date of Patent: January 9, 2024Assignee: IHI CorporationInventors: Akihiro Shimamura, Naoki Seki, Hirotaka Sugawara, Yasuhiko Yamamoto
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Publication number: 20230411618Abstract: A negative electrode active material for a non-aqueous electrolyte secondary battery includes composite particles containing a lithium silicate phase, a silicon phase dispersed in the lithium silicate phase, and a crystalline phase of silicon dioxide dispersed in the lithium silicate phase. The crystalline phase of silicon dioxide contains ?-cristobalite and quartz.Type: ApplicationFiled: September 22, 2021Publication date: December 21, 2023Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yusuke Saito, Yosuke Sato, Naoki Seki
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Patent number: 11791691Abstract: A system capable of appropriately cooling a generator and a power cable connected to the generator, disposed in a hot section of a turbo-fan engine, regardless of a rating of the engine is provided. The system includes: a junction box; a bypass air duct that supplies, to the junction box, air extracted from a portion of a bypass flow path of the engine on a side further downstream than a fan outlet; a core air duct that supplies, to the junction box, air extracted from a portion of a core flow path of the engine on a side further upstream than a compressor outlet; and a cooling air duct that extends from the junction box to a space for accommodating the generator, and valves capable of being independently controlled to open and close are provided at downstream ends of the bypass air duct and the core air duct.Type: GrantFiled: October 22, 2021Date of Patent: October 17, 2023Assignee: IHI CORPORATIONInventors: Naoki Seki, Toshikazu Kobayashi, Shotaro Ishii
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Publication number: 20230307612Abstract: A negative electrode material for a non-aqueous electrolyte secondary battery includes composite particles, and a conductive layer disposed on a surface of each of the composite particles. The composite particles each have a silicate phase, and silicon phases dispersed in the silicate phase. The conductive layer contains a calcium component.Type: ApplicationFiled: May 24, 2021Publication date: September 28, 2023Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yosuke Sato, Yusuke Saito, Naoki Seki
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Patent number: 11732711Abstract: In an external gear pump, a first bushing of a rotational shaft of a first gear has a second surface facing to a first surface of a pump body. A recess for supplying high-pressure lubricating oil between an inner circumferential surface of the first bushing and an outer circumferential surface of the rotational shaft is opened on the inner circumferential surface within a low pressure range associating with an inlet chamber of fluid. A bushing-side supply passage for supplying the high-pressure lubricating oil to the recess is formed within the first bushing. A bushing-side inlet port of the bushing-side supply passage is opened on the second surface within a high pressure range associating with an outlet chamber of the fluid. A body-side supply passage for supplying the high-pressure lubricating oil to a body-side supply port opened on the first surface is formed within the pump body.Type: GrantFiled: July 28, 2021Date of Patent: August 22, 2023Assignee: IHI CorporationInventors: Masahiro Tanida, Takashi Sato, Kenji Takamiya, Akihiro Shimamura, Naoki Seki
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Publication number: 20230132836Abstract: A secondary battery including a positive electrode, a negative electrode, and an electrolyte. The negative electrode includes a carbon material, a first silicon-containing material, and a second silicon-containing material. The first silicon-containing material includes a silicate phase, and first silicon phases dispersed in the silicate phase. The second silicon-containing material includes a carbon phase, and second silicon phases dispersed in the carbon phase.Type: ApplicationFiled: March 22, 2021Publication date: May 4, 2023Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yosuke Sato, Yusuke Saito, Naoki Seki
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Publication number: 20230111143Abstract: A negative electrode active material for a secondary battery includes a silicon-containing material. The silicon-containing material includes a lithium-ion conductive phase, silicon particles dispersed in the lithium-ion conductive phase, and particles containing vanadium dispersed in the lithium-ion conductive phase.Type: ApplicationFiled: January 19, 2021Publication date: April 13, 2023Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yusuke Saito, Naoki Seki
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Publication number: 20230083229Abstract: A negative electrode active material for a secondary battery comprising silicate composite particles including silicon particles and a lithium silicate phase. The silicon particles are dispersed in the lithium silicate phase, the silicate composite particles have a porosity of 2% or less. In a diffraction pattern by X-ray diffraction (XRD), a ratio I2/I1 is 0.3 or less, the ratio I2/I1 being a ratio of an integrated intensity I2 of a peak derived from the lithium silicate phase that appears in a range of 2? of 23° to 25° relative to an integrated intensity I1 of a peak derived from Si(111) plane of the silicon particles that appears in a range of 2? of 27° to 30°.Type: ApplicationFiled: December 17, 2020Publication date: March 16, 2023Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Keita Okazaki, Naoki Seki
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Publication number: 20230078415Abstract: A negative electrode active material for a secondary battery includes silicate composite particles including silicon particles and a silicate phase. The silicon particles are dispersed in the silicate phase, and the silicon particles contain a first element of at least one selected from the group consisting of germanium and aluminum.Type: ApplicationFiled: December 17, 2020Publication date: March 16, 2023Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yusuke Saito, Toshiki Kamidaira, Naoki Seki, Yosuke Sato
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Publication number: 20220385123Abstract: Provided is a stator including a coil of a winding of a flat wire conductor, a stator core including a slot for housing a part of the coil, and a flow passage part through which a coolant flows, provided between a wall part of the slot and an outer surface of the coil facing the wall part. The extension shape of the flow passage part from an inlet to an outlet for the coolant changes along the axial direction of the stator core. The flow passage part is, for example, a concave part formed on the wall part of the slot.Type: ApplicationFiled: August 8, 2022Publication date: December 1, 2022Applicant: IHI CorporationInventors: Naoki SEKI, Fuminori SUZUKI
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Publication number: 20220268205Abstract: An electric generator equipped in a multi-shaft gas turbine engine for aircraft, includes: a rotor attached to the rear end portion of a low-pressure shaft rotatably supported by a bearing in the gas turbine engine; a stator provided around the rotor; wherein the electric generator has no structure to support the low-pressure shaft and the rotor.Type: ApplicationFiled: February 10, 2022Publication date: August 25, 2022Applicant: IHI CorporationInventor: Naoki SEKI
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Patent number: 11408344Abstract: A cooling system includes: a core casing configured to house a compressor, a combustion chamber, and a turbine; a tail cone configured to form at least part of an exhaust passage of the turbine together with the core casing; struts configured to connect the core casing with a support body of the tail cone; a housing installed in the tail cone, configured to house an electrical apparatus; and at least one primary duct configured to connect between an internal space of the housing and an outlet passage of the compressor or a discharge port of a blower installed in a gas turbine engine via at least one of the struts and a radial outside of the core casing.Type: GrantFiled: June 29, 2021Date of Patent: August 9, 2022Assignee: IHI CorporationInventors: Fuminori Suzuki, Naoki Seki, Toshikazu Kobayashi
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Publication number: 20220231559Abstract: A rotor of an electrical rotating device includes a rotor core, plural permanent magnets mounted on an outer circumference of the rotor core, a retaining sleeve that holds the permanent magnets from their outer side, a cooling fluid flow channel formed on each surface of the permanent magnets on a side of the retaining sleeve [or on each surface on a side of the rotor core], and a seal ring. The retaining sleeve is configured of plural divided sleeves divided along a direction of a rotation axis of the rotor. A seam is formed between adjacent divided sleeves in the plural divided sleeves. The seal ring covers the seam from an outer circumferential side [or an inner circumferential side].Type: ApplicationFiled: April 5, 2022Publication date: July 21, 2022Applicant: IHI CorporationInventors: Fuminori SUZUKI, Naoki SEKI
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Patent number: 11365683Abstract: A fuel supply control device is provided in which a parallel flow path of an orifice and a pressurizing valve is used as a complex pressurizing valve for a fuel supply amount, and which controls a fuel supply pump on the basis of a pressure difference before and after the complex pressurizing valve that has been detected by a pressure difference meter. When the rotational speed of the fuel supply pump is below a predetermined threshold value, the fuel supply pump is controlled on the basis of a first fuel measurement amount, and the fuel supply pump is controlled on the basis of a second fuel measurement amount.Type: GrantFiled: September 2, 2020Date of Patent: June 21, 2022Assignee: IHI CORPORATIONInventors: Naoki Seki, Yasuhiko Yamamoto, Akihiro Shimamura
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Patent number: 11352959Abstract: A fuel supply control device controls a fuel supply pump based on a front-rear differential pressure across a metering valve for a fuel supply amount, which is detected by a differential pressure gauge, using parallel flow passages of an orifice and a pressurizing valve as the metering valve, in which the fuel supply control device includes a first control amount generation unit generating a first control amount based on the front-rear differential pressure, a second control amount generation unit generating a second control amount based on the rotation speed of the fuel supply pump, a control amount selection unit, a subtractor, and a control calculation unit, in which the control amount selection unit selects the first control amount in a case where the rotation speed is equal to or lower than a predetermined threshold and select the second control amount in a case where the rotation speed exceeds the threshold.Type: GrantFiled: May 12, 2020Date of Patent: June 7, 2022Assignee: IHI CorporationInventors: Yasuhiko Yamamoto, Naoki Seki
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Publication number: 20220128006Abstract: A fuel supply control device (10) is configured to generate an operation amount used for feedback-controlling rotation of a gear pump (3) based on a deviation of a detected fuel flow rate with respect to a target flow rate, wherein the fuel supply control device generates the operation amount such that a rotation speed of the gear pump is equal to or greater than a predetermined lower limit rotation speed Nmin so as to protect a bearing of the gear pump.Type: ApplicationFiled: December 26, 2019Publication date: April 28, 2022Applicant: IHI CorporationInventors: Akihiro SHIMAMURA, Naoki SEKI, Hirotaka SUGAWARA, Yasuhiko YAMAMOTO
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Publication number: 20220045573Abstract: A system capable of appropriately cooling a generator and a power cable connected to the generator, disposed in a hot section of a turbo-fan engine, regardless of a rating of the engine is provided. The system includes: a junction box; a bypass air duct that supplies, to the junction box, air extracted from a portion of a bypass flow path of the engine on a side further downstream than a fan outlet; a core air duct that supplies, to the junction box, air extracted from a portion of a core flow path of the engine on a side further upstream than a compressor outlet; and a cooling air duct that extends from the junction box to a space for accommodating the generator, and valves capable of being independently controlled to open and close are provided at downstream ends of the bypass air duct and the core air duct.Type: ApplicationFiled: October 22, 2021Publication date: February 10, 2022Applicant: IHI CORPORATIONInventors: Naoki Seki, Toshikazu Kobayashi, Shotaro Ishii