Patents by Inventor Akihiko Noie
Akihiko Noie 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: 11949100Abstract: The present invention is to provide a cathode active material used for a lithium ion secondary battery which has a large charge-discharge capacity, and excels in charge-discharge cycle properties, output properties and productivity, and, a lithium ion secondary battery using the same. The cathode active material used for a lithium ion secondary battery comprises a lithium transition metal composite oxide represented by the following Formula (1); Li1+aNibCocMndMeO2+?, where, in the formula (1), M is at least one metal element other than Li, Ni, Co, and Mn; and a, b, c, d, e, and ? satisfy the following conditions: ?0.04?a?0.04, 0.80?b<1.00, 0?c?0.04, 0<d<0.20, b+c+d+e=1, ?0.2<?<0.2, and c and d in the Formula (1) satisfy c/d?0.75.Type: GrantFiled: March 4, 2019Date of Patent: April 2, 2024Assignee: Proterial, Ltd.Inventors: Tatsuya Toyama, Shin Takahashi, Hisato Tokoro, Genei Nakajima, Shuichi Takano, Akira Gunji, Akihiko Noie
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Patent number: 11646412Abstract: The present invention is to provide a cathode active material used for a lithium ion secondary battery which has a large charge-discharge capacity, and excels in charge-discharge cycle properties, output properties and productivity, and, a lithium ion secondary battery using the same. The cathode active material used for a lithium ion secondary battery comprises a lithium-transition metal composite oxide having an ?-NaFeO2 type crystal structure and represented by the following formula (1); Li1+aNibCocMdO2+?, where, in the formula (1), M is at least one metal element other than Li, Ni and Co; and a, b, c, d and a are respectively numbers satisfying ?0.04?a?0.04, 0.80?b?1.0, 0?c?0.06, b+c+d=1, and ?0.2<?<0.2, and an a-axis lattice constant of the crystal structure is 2.878×10?10 m or more.Type: GrantFiled: August 28, 2018Date of Patent: May 9, 2023Assignee: HITACHI METALS, LTD.Inventors: Tatsuya Toyama, Shin Takahashi, Hisato Tokoro, Genei Nakajima, Shuichi Takano, Akira Gunji, Akihiko Noie
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Publication number: 20210336260Abstract: The present invention is to provide a cathode active material used for a lithium ion secondary battery which has a large charge-discharge capacity, and excels in charge-discharge cycle properties, output properties and productivity, and, a lithium ion secondary battery using the same. The cathode active material used for a lithium ion secondary battery comprises a lithium-transition metal composite oxide having an ?-NaFeO2 type crystal structure and represented by the following formula (1); Li1+aNibCocMdO2+?, where, in the formula (1), M is at least one metal element other than Li, Ni and Co; and a, b, c, d and a are respectively numbers satisfying ?0.04?a?0.04, 0.80?b?1.0, 0?c?0.06, b+c+d=1, and ?0.2<?<0.2, and an a-axis lattice constant of the crystal structure is 2.878×10?10 m or more.Type: ApplicationFiled: August 28, 2018Publication date: October 28, 2021Applicant: HITACHI METALS, LTD.Inventors: Tatsuya TOYAMA, Shin TAKAHASHI, Hisato TOKORO, Genei NAKAJIMA, Shuichi TAKANO, Akira GUNJI, Akihiko NOIE
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Publication number: 20210013505Abstract: The present invention is to provide a cathode active material used for a lithium ion secondary battery which has a large charge-discharge capacity, and excels in charge-discharge cycle properties, output properties and productivity, and, a lithium ion secondary battery using the same. The cathode active material used for a lithium ion secondary battery comprises a lithium transition metal composite oxide represented by the following Formula (1); Li1+aNibCocMndMeO2+?, where, in the formula (1), M is at least one metal element other than Li, Ni, Co, and Mn; and a, b, c, d, e, and ? satisfy the following conditions: ?0.04?a?0.04, 0.80?b<1.00, 0?c?0.04, 0<d<0.20, b+c+d+e=1, ?0.2<?<0.2, and c and d in the Formula (1) satisfy c/d?0.75.Type: ApplicationFiled: March 4, 2019Publication date: January 14, 2021Applicant: HITACHI METALS, LTD.Inventors: Tatsuya TOYAMA, Shin TAKAHASHI, Hisato TOKORO, Genei NAKAJIMA, Shuichi TAKANO, Akira GUNJI, Akihiko NOIE
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Patent number: 10361465Abstract: A secondary battery is disclosed. The secondary battery has a bipolar electrode, an electrolyte layer, and a porous insulator. The bipolar layer includes a positive electrode layer formed on one surface of a collector foil and a negative electrode formed on the other surface of the collector foil. The electrolyte layer is famed at least on a surface of at least one of the positive electrode layer and the negative electrode layer. The porous insulator is formed to a lateral surface of at least one of the positive electrode layer, the negative electrode layer, and the electrolyte layer. The electrolyte layer is laminated by at least one layer relative to the bipolar electrode to configure a bipolar battery. The porous insulator also includes an inorganic particle and a reactive agent for lowering a fluidity of the liquid electrolyte bleeding from the electrolyte layer.Type: GrantFiled: March 16, 2017Date of Patent: July 23, 2019Assignee: HITACHI, LTD.Inventors: Shimpei Amasaki, Yusuke Kaga, Kazuaki Naoe, Makoto Abe, Etsuko Nishimura, Akihiko Noie
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Publication number: 20190006678Abstract: Proposed are a secondary battery, a half cell and a production method of a secondary battery capable of exhibiting the designed battery capacity. In a secondary battery comprising an electrode containing an electrode active material and a binding agent, and an electrolyte, the electrolyte contains an electrolytic solution, the electrode further contains the electrolytic solution, and a binding agent amount on a surface of the electrode active material is smaller than an average of the binding agent amount of the electrode.Type: ApplicationFiled: March 26, 2018Publication date: January 3, 2019Inventors: Kazuaki NAOE, Yusuke KAGA, Shimpei AMASAKI, Makoto ABE, Etsuko NISHIMURA, Akihiko NOIE
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Publication number: 20180159103Abstract: Provided is a secondary battery having better performance. The secondary battery includes: a negative electrode; a positive electrode; an insulating layer; and a structure having pores each configured to carry an electrolyte, in which: the negative electrode and the positive electrode are alternately laminated on each other through intermediation of the insulating layer; and the structure is arranged in a region which is sandwiched between two of the insulating layers and faces at least part of an edge of the positive electrode, and includes a material different from a material of the insulating layer.Type: ApplicationFiled: December 5, 2017Publication date: June 7, 2018Applicant: HITACHI, LTD.Inventors: Kazuaki NAOE, Yusuke KAGA, Shimpei AMASAKI, Makoto ABE, Etsuko NISHIMURA, Akihiko NOIE
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Publication number: 20180123162Abstract: Provided is a secondary battery having high utilization efficiency per unit volume. The secondary battery includes: an electrode laminate in which a positive electrode layer and a negative electrode layer are laminated on each other through intermediation of an insulating layer; a pair of support plates configured to sandwich the electrode laminate therebetween; and a column body which is sandwiched between the pair of support plates at both ends thereof and adhered to the pair of support plates.Type: ApplicationFiled: October 30, 2017Publication date: May 3, 2018Inventors: Yusuke KAGA, Kazuaki NAOE, Shimpei AMASAKI, Masashi NISHIKI, Makoto ABE, Etsuko NISHIMURA, Akihiko NOIE
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Publication number: 20180090794Abstract: A secondary battery is disclosed. The secondary battery has a bipolar electrode, an electrolyte layer, and a porous insulator. The bipolar layer includes a positive electrode layer formed on one surface of a collector foil and a negative electrode formed on the other surface of the collector foil. The electrolyte layer is famed at least on a surface of at least one of the positive electrode layer and the negative electrode layer. The porous insulator is formed to a lateral surface of at least one of the positive electrode layer, the negative electrode layer, and the electrolyte layer. The electrolyte layer is laminated by at least one layer relative to the bipolar electrode to configure a bipolar battery. The porous insulator also includes an inorganic particle and a reactive agent for lowering a fluidity of the liquid electrolyte bleeding from the electrolyte layer.Type: ApplicationFiled: March 16, 2017Publication date: March 29, 2018Applicant: HITACHI, LTD.Inventors: Shimpei Amasaki, Yusuke Kaga, Kazuaki Naoe, Makoto Abe, Etsuko Nishimura, Akihiko Noie
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Publication number: 20160268608Abstract: A lithium secondary battery having a positive electrode, a negative electrode, and an electrolyte, wherein the positive electrode is constituted by a positive electrode mixture layer containing a positive electrode active material, a binder, and a conductive agent being formed on a positive electrode collector, the negative electrode is constituted by a negative electrode mixture layer containing a negative electrode active material, the binder, and the conductive agent being formed on a negative electrode collector, and the conductive agent contained in both of the positive electrode mixture layer and the negative electrode mixture layer is a fibrous conductive agent or a mixture of the fibrous conductive agent and a particulate conductive agent and an aspect ratio of the fibrous conductive agent is 20 or more.Type: ApplicationFiled: December 29, 2015Publication date: September 15, 2016Applicant: HITACHI, LTD.Inventors: Etsuko NISHIMURA, Takefumi OKUMURA, Yoshiyuki TAKAMORI, Akihiko NOIE, Chieko ARAKI, Kazuaki NAOE, Shimpei AMASAKI
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Patent number: 8445154Abstract: The present invention provides a fuel cell power system, in which a combustion exhaust gas having a high temperature and generated by the combustion reaction of unreacted fuel gas and oxidizer gas which are not utilized in a power-generating reaction is introduced into a gas header for distributing the fuel gas or the oxidizer gas to a plurality of fuel cells contained in a fuel cell body, in such a way that a larger amount of heat is transferred to the gas which is to be supplied to the cells disposed in a peripheral area of the fuel cell body by heat exchange, and a smaller amount of the heat is transferred to the gas which is to be supplied to the cells disposed in a central area of the fuel cell body.Type: GrantFiled: June 29, 2007Date of Patent: May 21, 2013Assignee: Hitachi, Ltd.Inventors: Tadashi Yoshida, Hiromi Tokoi, Kazuo Takahashi, Shin Takahashi, Akihiko Noie, Akira Gunji, Nariyoshi Kobayashi
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Publication number: 20120164523Abstract: A lithium ion secondary battery with high reliability and high safety is provided. The lithium ion secondary battery includes a positive electrode for occluding and releasing lithium ions, a negative electrode for occluding and releasing lithium ions, a non-aqueous liquid electrolyte containing a lithium salt, and a separator disposed between the positive electrode and the negative electrode. The positive electrode includes particles of polymethyl methacrylate. Preferably, particles of positive electrode active material in the positive electrode are covered with the particles of polymethyl methacrylate.Type: ApplicationFiled: December 20, 2011Publication date: June 28, 2012Inventors: Masanori YOSHIKAWA, Akihiko Noie
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Patent number: 8206867Abstract: A flat tube double-sided power generation type fuel cell is comprised of the combination of one or more of the following means (1) and (2). That is, means (1) for optimizing the constitution of an current-collecting electrode thereby making the flow of fuel or air uniform over the entire region, and means (2) for dividing the current-collecting electrode into two regions thereby shunting the flow of the fuel into a flow directing to the anode of the cell and a flow directly directing to the downstream, for increasing the power generation amount in the cell, the means being applicable also to a cell of a cylindrical shape.Type: GrantFiled: January 25, 2007Date of Patent: June 26, 2012Assignee: Hitachi, Ltd.Inventors: Hiromi Tokoi, Nariyoshi Kobayashi, Kazuo Takahashi, Tadashi Yoshida, Akihiko Noie, Shin Takahashi, Akira Gunji
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Publication number: 20080085432Abstract: In a solid oxide fuel cell module (1) incorporating a burner (6) not only in an oxidizer side burner (5) of the module (1) but also in a fuel side, directly heating from both sides by a combustion gas, and starting for a short time, a combustion state of the fuel side burner is kept well, and a short-time start is securely achieved. A cooling piping (17) is provided in a burner main body (61) and a premixing chamber (62) of the fuel side burner (6), and is connected to a heat recovery system (16) so as to supply a cooling medium, thereby cooling the fuel side burner (6). Further, a heat held by the cooling medium is recovered by a heat exchanger (18) connected to an outlet side of the heat recovery system (16). A back fire (an abnormal combustion) of the burner is prevented, the module is uniformly heated, and a secure short-time start is achieved, by cooling the fuel side burner (6) so as to adjust temperature. Further, a combined efficiency of the module is improved by utilizing the recovered surplus heat.Type: ApplicationFiled: January 25, 2007Publication date: April 10, 2008Inventors: Akihiko Noie, Nariyoshi Kobayashi, Hiromi Tokoi, Kazuo Takahashi, Tadashi Yoshida, Shin Takahashi, Akira Gunji
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Publication number: 20080014485Abstract: The present invention provides a fuel cell power system, in which a combustion exhaust gas having a high temperature and generated by the combustion reaction of unreacted fuel gas and oxidizer gas which are not utilized in a power-generating reaction is introduced into a gas header for distributing the fuel gas or the oxidizer gas to a plurality of fuel cells contained in a fuel cell body, in such a way that a larger amount of heat is transferred to the gas which is to be supplied to the cells disposed in a peripheral area of the fuel cell body by heat exchange, and a smaller amount of the heat is transferred to the gas which is to be supplied to the cells disposed in a central area of the fuel cell body.Type: ApplicationFiled: June 29, 2007Publication date: January 17, 2008Inventors: Tadashi Yoshida, Hiromi Tokoi, Kazuo Takahashi, Shin Takahashi, Akihiko Noie, Akira Gunji, Nariyoshi Kobayashi
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Publication number: 20080008922Abstract: A flattened tube double-sided power generation type fuel cell is comprised of the combination of one or more of the following means (1) and (2). That is, means (1) for optimizing the constitution of an current-collecting electrode thereby making the flow of fuel or air uniform over the entire region, and means (2) for dividing the current-collecting electrode into two regions thereby shunting the flow of the fuel into a flow directing to the anode of the cell and a flow directly directing to the downstream, for increasing the power generation amount in the cell, the means being applicable also to a cell of a cylindrical shape.Type: ApplicationFiled: January 25, 2007Publication date: January 10, 2008Inventors: Hiromi Tokoi, Nariyoshi Kobayashi, Kazuo Takahashi, Tadashi Yoshida, Akihiko Noie, Shin Takahashi, Akira Gunji
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Patent number: 4775495Abstract: The process of the present invention comprises adding an alkaline earth metal hydroxide such as barium hydroxide to a radioactive liquid waste containing sodium sulfate as the main component to convert the latter into an insoluble alkaline earth metal salt such as barium sulfate, adding silicic acid to by-product sodium hydroxide to prepare water glass and solidifying the radioactive insoluble alkaline earth metal salt with the water glass. According to this process, exudation of radioactive substances from the solid can be prevented and the solid having a high durability can be obtained at a low cost.Type: GrantFiled: February 6, 1986Date of Patent: October 4, 1988Assignee: Hitachi, Ltd.Inventors: Tatsuo Izumida, Tsutomu Baba, Akihiko Noie, Masaru Sonobe, Makoto Kikuchi