Patents by Inventor Hideki Oki
Hideki Oki 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: 9397336Abstract: A battery active material includes a crystal phase that is represented by a formula Y2?xScxTi2O5S2 (where 0<x<2), and has a Ruddlesden-Popper structure.Type: GrantFiled: December 11, 2013Date of Patent: July 19, 2016Assignee: TOYTA JIDOSHA KABUSHIKI KAISHAInventors: Takeshi Tojigamori, Hideki Oki
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Patent number: 9160000Abstract: An active material for a battery, which has high thermal stability and low electric potential. According to the invention, an active material for a battery including an M element in Group III, a Ti element, an O element, and an S element and having an M2Ti2O5S2 crystalline phase is provided to solve the problem.Type: GrantFiled: February 18, 2011Date of Patent: October 13, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takeshi Tojigamori, Hideki Oki
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Patent number: 9093708Abstract: The main object of the present invention is to provide a method for producing a cathode active material layer, which allows a high-purity lithium complex oxide by restraining impurities from being produced, allows a flat film, and allows orientation control. The present invention solves the above-mentioned problems by providing a method for producing a cathode active material layer, in which a cathode active material layer is formed on a substrate and contains LiXaOb (X is a transition metal element of at least one kind selected from the group consisting of Co, Ni and Mn, a=0.7-1.3, and b=1.5-2.5), characterized in that the method comprises the steps of: forming a cathode active material precursor-film on the above-mentioned substrate by a physical vapor deposition method while setting a temperature of the substrate at 300° C.Type: GrantFiled: July 13, 2009Date of Patent: July 28, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hideki Oki
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Patent number: 8993178Abstract: A magnesium battery (10) is constituted of a negative electrode (1), a positive electrode (2) and an electrolyte (3). The negative electrode (1) is formed of metallic magnesium and can also be formed of an alloy. The positive electrode (2) is composed of a positive electrode active material, for example, a metal oxide, graphite fluoride ((CF)n) or the like, etc. The electrolytic solution (3) is, for example, a magnesium ion-containing nonaqueous electrolytic solution prepared by dissolving magnesium(II) chloride (MgCl2) and dimethylaluminum chloride ((CH3)2AlCl) in tetrahydrofuran (THF). In the case of dissolving and depositing magnesium by using this electrolytic solution, the following reaction proceeds in the normal direction or reverse direction.Type: GrantFiled: June 5, 2008Date of Patent: March 31, 2015Assignee: Sony CorporationInventors: Yuri Nakayama, Kenta Yamamoto, Yoshihiro Kudo, Hideki Oki
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Patent number: 8980476Abstract: An active material for a battery contains a Y2Ti2O5S2 crystalline phase, and has an IB/IA value of 0.3 or smaller and an IC/IA value of 0.15 or smaller, wherein IA, IB and IC are the peak intensity of the Y2Ti2O5S2 crystalline phase at 2?=34.5°, the peak intensity of a Y2T2O7 crystalline phase at 2?35.6°, and the peak intensity of TiS2 at 2?=34.1°, respectively, that are measured by X-ray diffraction using CuK? radiation. The active material is synthesized by preparing a raw material composition containing TiS2, TiO2 and Y2O3 and having a molar ratio of TiS2 to Y2O3 of higher than 1 or containing TiS2, TiO2 and Y2O3 and having a molar ratio of TiO2 to Y2O3 of lower than 1, and heating the raw material composition. A positive or negative-electrode active material layer included in the battery may be contain the active material.Type: GrantFiled: August 9, 2012Date of Patent: March 17, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takeshi Tojigamori, Hideki Oki
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Patent number: 8920975Abstract: Provided is a method of producing a nitrided lithium-transition metal compound oxide having a rock-salt layer structure or a spinel structure, including: preparing a raw material composite that has a raw material containing lithium, transition metal, and oxygen and a nitriding agent that is expressed by a following General Formula (1) and is solid or liquid at room temperature (25° C.); and synthesizing the nitrided lithium-transition metal compound oxide by firing the raw material composite to nitride the raw material. R1, R2, and R3 are independent of each other and are each a functional group having at least one of carbon (C), hydrogen (H), oxygen (O), and nitrogen (N).Type: GrantFiled: May 21, 2010Date of Patent: December 30, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hideki Oki, Toshihiro Seguchi
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Patent number: 8852740Abstract: An electrode active material including a lithium-transition metal complex oxide having a layered rock salt structure or spinel structure and a fluorine and nitrogen introduced therein. Also disclosed is an electrode active material production method including a nitrogen introduction step of synthesizing a lithium-transition metal complex oxide (c) having a layered rock salt structure or spinel structure and a fluorine and nitrogen introduced therein, by firing a material composition including a lithium-transition metal complex oxide (a) having a fluorine introduced therein and a nitriding agent (b) being represented by the formula (1) and being solid or liquid at ordinary temperature.Type: GrantFiled: March 12, 2010Date of Patent: October 7, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hideki Oki, Toshihiro Seguchi
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Publication number: 20140170495Abstract: A battery active material includes a crystal phase that is represented by a formula Y2?xScxTi2O5S2 (where 0<x<2), and has a Ruddlesden-Popper structure.Type: ApplicationFiled: December 11, 2013Publication date: June 19, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takeshi TOJIGAMORI, Hideki OKI
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Publication number: 20130071754Abstract: A main object of the present invention is to provide an electrode body which can obtain a high capacity secondary battery. The invention provides an electrode body having an active material composed of a metal oxide and a conductive auxiliary agent obtained by causing a partial deficiency to an oxygen atom in the metal oxide and introducing a nitrogen atom into the metal oxide, whereby the above object can be achieved.Type: ApplicationFiled: April 30, 2010Publication date: March 21, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hidenori Miki, Hideki Oki
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Publication number: 20130052540Abstract: An active material for a battery contains a Y2Ti2O5S2 crystalline phase, and has an IB/IA value of 0.3 or smaller and an IC/IA value of 0.15 or smaller, wherein IA, IC and IC are the peak intensity of the Y2Ti2O5S2 crystalline phase at 2?=34.5°, the peak intensity of a Y2T2O7 crystalline phase at 2?35.6°, and the peak intensity of TiS2 at 2?=34.1°, respectively, that are measured by X-ray diffraction using CuK? radiation. The active material is synthesized by preparing a raw material composition containing TiS2, TiO2 and Y2O3 and having a molar ratio of TiS2 to Y2O3 of higher than 1 or containing TiS2, TiO2 and Y2O3 and having a molar ratio of TiO2 to Y2O3 of lower than 1, and heating the raw material composition. A positive or negative-electrode active material layer included in the battery may be contain the active material.Type: ApplicationFiled: August 9, 2012Publication date: February 28, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takeshi TOJIGAMORI, Hideki OKI
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Publication number: 20130022815Abstract: An electrode active material including a lithium-transition metal complex oxide having a layered rock salt structure or spinel structure and a fluorine and nitrogen introduced therein. Also disclosed is an electrode active material production method including a nitrogen introduction step of synthesizing a lithium-transition metal complex oxide (c) having a layered rock salt structure or spinel structure and a fluorine and nitrogen introduced therein, by firing a material composition including a lithium-transition metal complex oxide (a) having a fluorine introduced therein and a nitriding agent (b) being represented by the formula (1) and being solid or liquid at ordinary temperature.Type: ApplicationFiled: March 12, 2010Publication date: January 24, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hideki Oki, Toshihiro Seguchi
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Publication number: 20130022875Abstract: The present invention is to provide an active material for a battery, which has high thermal stability and low electric potential. According to the invention, an active material for a battery comprising a M element in Group III, a Ti element, an O element, and a S element and having an M2Ti2O5S2 crystalline phase is provided to solve the problem.Type: ApplicationFiled: February 18, 2011Publication date: January 24, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takeshi Tojigamori, Hideki Oki
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Patent number: 8286353Abstract: A method of manufacturing an outer retainer for a one-way clutch having an outward flange at one side edge thereof involves punching out a part of an annular portion having the outward flange by sliding a punch toward an axis of the outer retainer substantially in an axially inner direction from a retainer outer periphery-sided curve portion of the outward flange to a retainer inner periphery-sided curve portion thereof in a way that uses a die and the punch.Type: GrantFiled: July 21, 2008Date of Patent: October 16, 2012Assignee: NSK-Warner K.K.Inventors: Toshio Nagata, Hiroki Segawa, Hideki Oki, Seiji Nishimura
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Publication number: 20120202119Abstract: A main object of the present invention is to an active material for battery having a high thermal stability and a low electric potential. The object is attained by providing the active material for battery contains an Y element, a Ba element, a Cu element, and an O element and contains a YBa2Cu3O7-? crystalline phase (? satisfies 0???0.5).Type: ApplicationFiled: March 25, 2010Publication date: August 9, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hideki Oki, Koji Kawamoto
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Publication number: 20120015251Abstract: The main object of the present invention is to provide a method for producing a cathode active material layer, which allows a high-purity lithium complex oxide by restraining impurities from being produced, allows a flat film, and allows orientation control. The present invention solves the above-mentioned problems by providing a method for producing a cathode active material layer, in which a cathode active material layer is formed on a substrate and contains LiXaOb (X is a transition metal element of at least one kind selected from the group consisting of Co, Ni and Mn, a=0.7-1.3, and b=1.5-2.5), characterized in that the method comprises the steps of: forming a cathode active material precursor-film on the above-mentioned substrate by a physical vapor deposition method while setting a temperature of the substrate at 300° C.Type: ApplicationFiled: July 13, 2009Publication date: January 19, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Hideki Oki
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Publication number: 20110171536Abstract: A cathode (1) is formed by compression bonding a mixture to a cathode current collecting net (5). The mixture includes a cathode active material and an electroconductive material such as graphite powder. The cathode active material is a halide of at least one metal element selected from the group consisting of Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, and Zn. An anode (2) is composed typically of a metallic magnesium plate. A separator (3) composed typically of polyethylene glycol is arranged between the cathode (1) and the anode (2) to avoid direct contact between them. A battery chamber (8) is filled with an electrolytic solution (4) and is hermetically sealed with a gasket (9). The electrolytic solution (4) may be a solution of a suitable metal ion-containing salt in an aprotic organic solvent, such as a solution of Mg(ACl2EtBu)2 in tetrahydrofuran (THF).Type: ApplicationFiled: November 14, 2006Publication date: July 14, 2011Applicant: Sony CorporationInventors: Hideki Oki, Yuri Nakayama, Kazuhiro Noda
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Publication number: 20100297505Abstract: Provided is a method of producing a nitrided Li—Ti compound oxide, including: preparing a raw material composite that has a raw material containing lithium, titanium, and oxygen and a nitriding agent that is expressed by a following General Formula (1) and is solid or liquid at room temperature (25° C.); and synthesizing the nitrided Li—Ti compound oxide by firing the raw material composite to nitride the raw material. R1, R2, and R3 are independent of each other and are each a functional group having at least one of carbon (C), hydrogen (H), oxygen (O), and nitrogen (N).Type: ApplicationFiled: May 21, 2010Publication date: November 25, 2010Applicant: Toyota Jidosha Kabushiki KaishaInventors: Hideki Oki, Toshihiro Seguchi
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Publication number: 20100297504Abstract: Provided is a method of producing a nitrided lithium-transition metal compound oxide having a rock-salt layer structure or a spinel structure, including: preparing a raw material composite that has a raw material containing lithium, transition metal, and oxygen and a nitriding agent that is expressed by a following General Formula (1) and is solid or liquid at room temperature (25° C.); and synthesizing the nitrided lithium-transition metal compound oxide by firing the raw material composite to nitride the raw material. R1, R2, and R3 are independent of each other and are each a functional group having at least one of carbon (C), hydrogen (H), oxygen (O), and nitrogen (N).Type: ApplicationFiled: May 21, 2010Publication date: November 25, 2010Applicant: Toyota Jidosha Kabushiki KaishaInventors: Hideki Oki, Toshihiro Seguchi
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Publication number: 20100136438Abstract: A magnesium battery (10) is constituted of a negative electrode (1), a positive electrode (2) and an electrolyte (3). The negative electrode (1) is formed of metallic magnesium and can also be formed of an alloy. The positive electrode (2) is composed of a positive electrode active material, for example, a metal oxide, graphite fluoride ((CF)n) or the like, etc. The electrolytic solution (3) is, for example, a magnesium ion-containing nonaqueous electrolytic solution prepared by dissolving magnesium(II) chloride (MgCl2) and dimethylaluminum chloride ((CH3)2AlCl) in tetrahydrofuran (THF). In the case of dissolving and depositing magnesium by using this electrolytic solution, the following reaction proceeds in the normal direction or reverse direction.Type: ApplicationFiled: June 5, 2008Publication date: June 3, 2010Applicant: Sony CorporationInventors: Yuri Nakayama, Kenta Yamamoto, Yoshirio Kudo, Hideki Oki
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Patent number: 7540212Abstract: A method of manufacturing a clutch housing which accommodates therein a plurality of clutch plates adapted to be engaged together so as to transmit a torque, wherein a drum portion and a boss portion can be integrally formed from a plate material so as to form a thick portion having a thickness of not less than approximately 1.3 times as large as that of the plate material and a thin portion having a thickness of not greater than approximately ½ of that of the plate material.Type: GrantFiled: August 29, 2005Date of Patent: June 2, 2009Assignee: NSK Warner K.K.Inventors: Hideki Oki, Shouji Yatsuyanagi, Tomoyuki Miyazaki, Kiyokazu Ichikawa