Patents by Inventor Noriyuki Tamura
Noriyuki Tamura 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: 11930136Abstract: A reading device includes: plural transport rolls that transport a document along a transport path, include a discharge roll disposed on a most downstream side of the transport path, and rotate and do not rotate in synchronization with one another; an opening and closing unit that exposes or covers an upstream portion of the transport path; plural detectors that are provided apart from one another along the transport path, detect a transported document, and include a discharge detector that is disposed on a most downstream side of the transport path and is disposed on an upstream side relative to the discharge roll in a document transport direction; a reader that reads an image formed on a transported document in a downstream portion of the transport path; and a controller that stops the plural transport rolls once upon occurrence of a document jam inside a device body by controlling the transport rolls and rotates the transport rolls for only a predetermined period in a case where the discharge detector is dType: GrantFiled: December 2, 2021Date of Patent: March 12, 2024Assignee: FUJIFILM Business Innovation Corp.Inventors: Noriyuki Obara, Hidemasa Takahashi, Kazunobu Sato, Shigeru Tamura, Yuki Iguchi
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Patent number: 11682766Abstract: The invention provides a lithium ion battery comprising: an anode comprising an anode active material layer on an anode current collector, the anode active material layer having a mass load higher than 60 g/m2; a cathode comprising a cathode active material layer on a cathode current collector, the cathode active material layer having a mass load higher than 80 g/m2; and an electrolytic solution comprising an imide anion based lithium salt and LiPO2F2, wherein at least one of the anode and cathode active material layers comprises a spacer comprising silicone ball.Type: GrantFiled: January 27, 2017Date of Patent: June 20, 2023Assignee: NEC CORPORATIONInventors: Qian Cheng, Noriyuki Tamura
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Patent number: 11639314Abstract: A porous fired granulated body is formed by consolidating numerous alumina particles to each other while letting mainly interconnected pores remain in network form across an entire cross section of a granulated body particle. The pores have an inner diameter controlled by a droplet diameter of a pore forming agent and have numerous precipitated alumina crystals formed on inner surfaces thereof. Manufacture is performed by spraying the pore forming agent (emulsion) onto a raw material to form a coating layer of the pore forming agent on a surface of the raw material particle and controlling the inner diameter of the pores. A porous fired granulated body of alumina having a high specific surface area and having higher strength for the same specific surface area can thus be provided by a simple manufacturing method.Type: GrantFiled: February 17, 2020Date of Patent: May 2, 2023Assignee: Itochu Ceratech CorporationInventors: Akira Takahashi, Junya Shimosato, Takahiko Nakamura, Noriyuki Tamura
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Patent number: 11417881Abstract: A lithium-manganese composite oxide represented by formula (1): Li1+x[(FeyNi1?y)zMn1?z]1?xO2 (1) wherein x, y, and z satisfy the following: 0<x??, 0?y<1.0, and 0<z?0.6, and wherein the content ratio of Li to the total content of Fe, Ni, and Mn (Li/(Fe+Ni+Mn)) is 1.55 or less on a molar ratio basis, the lithium-manganese composite oxide containing a crystalline phase having a layered rock-salt structure. This composite oxide is a novel material made from less resource-constrained and cheaper elements, and exhibits a high specific capacity, excellent charge-and-discharge cycle characteristics, and a high discharge capacity at a high current density (excellent rate characteristics), when used in the positive electrode material for lithium-ion secondary batteries.Type: GrantFiled: November 14, 2017Date of Patent: August 16, 2022Assignees: National Institute ot Advanced Industrial Science and Technology, Tanaka Chemical Corporation, NEC CorporationInventors: Mitsuharu Tabuchi, Hideka Shibuya, Takashi Ohtomo, Noriyuki Tamura, Kaoru Narita, Ryota Yuge, Naoki Kawano
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Patent number: 11349125Abstract: The object of the invention is to provide a new lithium ion battery system that can have both high energy density and fast chargeable capability. The invention provides a lithium ion battery, comprising an anode comprising an anode active material layer on an anode current collector, the anode active material layer having a mass load higher than 60 g/m2, a cathode comprising a cathode active material layer on a cathode current collector, the cathode active material layer having a mass load higher than 100 g/m2, and an electrolytic solution comprising an imide anion based lithium salt and LiPO2F2, wherein at least one of the anode and cathode active material layers comprises a spacer composed of a hard carbon.Type: GrantFiled: October 6, 2016Date of Patent: May 31, 2022Assignee: NEC CORPORATIONInventors: Qian Cheng, Katsumi Maeda, Noriyuki Tamura
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Patent number: 11349152Abstract: The invention provides a lithium ion battery, including an anode, a cathode and an electrolytic solution including imide anion based lithium salt and LiPO2F2. The cathode includes a cathode active material particle and a carbon conductive additive forming an island-bridge structure on the surface of the cathode active material particle. The carbon conductive additive includes graphenes partially covered with the surface of the cathode active material particle to form an island structure, carbon blacks attached on the surface of the graphene and carbon nanotubes connecting between graphenes as a bridge structure.Type: GrantFiled: July 20, 2017Date of Patent: May 31, 2022Assignee: NEC CORPORATIONInventors: Qian Cheng, Katsumi Maeda, Noriyuki Tamura, Mika Shiba
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Patent number: 11201327Abstract: In order to provide a lithium ion secondary battery having both high energy density and an excellent charge-rate characteristic, there is provided a lithium ion secondary battery including a positive electrode containing a positive electrode active material made of a lithium composite oxide, and nano-carbon having a Li ion diffusion path as an additive, and an electrolyte solution containing 0.5 mol/l or more of Li[(FSO2)2N] as an electrolyte, LiPO2F2 as an additive, and a ternary-system of ethylene carbonate (EC), dimethyl carbonate (DMC) and ethyl methyl carbonate (EMC), as solvents.Type: GrantFiled: June 13, 2017Date of Patent: December 14, 2021Assignee: NEC CORPORATIONInventors: Qian Cheng, Katsumi Maeda, Noriyuki Tamura
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Patent number: 11171335Abstract: To provide an anode material for implementing a lithium-ion battery that is capable of high-speed charging and excellent in cycle characteristics, and has high capacity. The anode material includes a spherical particle of graphite or graphite-carbon composite provided with pores on the surface and inner channels in the core part of the particle, the inner channels being interconnected to the pores.Type: GrantFiled: September 9, 2015Date of Patent: November 9, 2021Assignee: NEC CORPORATIONInventors: Qian Cheng, Noriyuki Tamura
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Patent number: 10944111Abstract: An electrode for lithium ion secondary batteries, including a porous glass particle and a positive electrode active material or negative electrode active material that is capable of occluding and releasing lithium ions wherein the pore volume of the porous glass particle is from 0.1 ml/g to 2 ml/g, is used to provide a lithium ion secondary battery excellent in a charge rate property.Type: GrantFiled: October 25, 2017Date of Patent: March 9, 2021Assignee: NEC CORPORATIONInventors: Katsumi Maeda, Noriyuki Tamura, Mika Shiba
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Patent number: 10897062Abstract: In order to provide a lithium ion secondary battery having both high energy density and an excellent charging-rate characteristic, in the lithium ion secondary battery comprising a positive electrode, a negative electrode and an electrolyte solution, the electrolyte solution comprises 0.5 mol/l or more of Li[(FSO2)2N], 0.5 mol/l or more of LiPF6, and LiPO2F2; and the negative electrode comprises graphite deposited with amorphous carbon or graphite coated with amorphous carbon and having a specific surface area of 4 m2/g or less, as a negative electrode active material.Type: GrantFiled: June 13, 2017Date of Patent: January 19, 2021Assignee: NEC CorporationInventors: Noriyuki Tamura, Katsumi Maeda, Qian Cheng
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Patent number: 10847788Abstract: There is provided a lithium-iron-manganese-based composite oxide capable of providing a lithium-ion secondary battery which has a high capacity retention rate in charge/discharge cycles and in which the generation of a gas caused by charge/discharge cycles is suppressed. A lithium-iron-manganese-based composite oxide having a layered rock-salt structure, wherein at least a part of the surface of a lithium-iron-manganese-based composite oxide represented by the following formula is coated with an oxide of at least one metal selected from the group consisting of La, Pr, Nd, Sm and Eu: LixM1(y-p)MnpM2(z-q)FeqO(2-?) wherein 1.05?x?1.32, 0.33?y?0.63, 0.06?z?0.50, 0<p?0.63, 0.06?q?0.50, 0???0.80, y?p, and z?q; M1 is at least one element selected from Ti and Zr; and M2 is at least one element selected from the group consisting of Co, Ni and Mn.Type: GrantFiled: February 9, 2016Date of Patent: November 24, 2020Assignees: NEC Corporation, Tanaka Chemical CorporationInventors: Ryota Yuge, Noriyuki Tamura, Sadanori Hattori, Mitsuharu Tabuchi, Kentaro Kuratani, Kyousuke Doumae, Hideka Shibuya
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Publication number: 20200350584Abstract: An anode material for a lithium ion secondary battery that is obtainable by a method comprising: preparing a raw material of the anode material selected from high oxygen containing carbons, heat treating the raw material at a temperature of 550° C. to 850° C. under oxidizing atmosphere to form having a multi-channel carbon material and doping boron into the multi-channel carbon material.Type: ApplicationFiled: July 21, 2020Publication date: November 5, 2020Applicant: NEC CORPORATIONInventors: Qian CHENG, Noriyuki TAMURA
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Publication number: 20200321588Abstract: Provided is a stacked secondary battery with which it is possible to prevent the phenomenon of gas generated by an electrode material or the like inside a cell accumulating between an electrode and a separator, and forming bubbles that cannot readily escape, and with which safety performance at high temperatures can be enhanced. A stacked secondary battery in which a positive electrode and a negative electrode are stacked with a bag-like separator interposed therebetween, wherein one of the positive electrode and the negative electrode is accommodated in the bag-like separator, the other of the positive electrode and the negative electrode is stacked on the bag-like separator accommodating said one electrode, and the bag-like separator has a uniaxial contraction characteristic at high temperatures and has a slit formed in a contraction direction along which the contraction coefficient of the bag-like separator is large.Type: ApplicationFiled: May 19, 2017Publication date: October 8, 2020Applicant: NEC CORPORATIONInventors: Kaoru NARITA, Noriyuki TAMURA, Sadanori HATTORI
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Patent number: 10714752Abstract: An anode material for a lithium ion battery, comprising an oxygen-containing carbon where oxygen is in the form of functional groups, the oxygen being distributed gradient from the surface to the inside of the carbon, and the carbon having an interlayer space d002 larger than 0.3357 nm; and a porous graphene layer covering the oxygen-containing carbon, the graphene being in the form of monolayer or few-layer graphene.Type: GrantFiled: January 13, 2016Date of Patent: July 14, 2020Assignees: NEC Corporation, University of HyogoInventors: Qian Cheng, Noriyuki Tamura, Yoshiaki Matsuo
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Publication number: 20200181030Abstract: A porous fired granulated body is formed by consolidating numerous alumina particles to each other while letting mainly interconnected pores remain in network form across an entire cross section of a granulated body particle. The pores have an inner diameter controlled by a droplet diameter of a pore forming agent and have numerous precipitated alumina crystals formed on inner surfaces thereof. Manufacture is performed by spraying the pore forming agent (emulsion) onto a raw material to form a coating layer of the pore forming agent on a surface of the raw material particle and controlling the inner diameter of the pores. A porous fired granulated body of alumina having a high specific surface area and having higher strength for the same specific surface area can thus be provided by a simple manufacturing method.Type: ApplicationFiled: February 17, 2020Publication date: June 11, 2020Inventors: Akira Takahashi, Junya Shimosato, Takahiko Nakamura, Noriyuki Tamura
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Patent number: 10665863Abstract: A porous graphene material with 1 to 200 graphene layers, wherein: at least one monolayer graphene is included; pores with the size of 70 nm to 200 nm are scattered over the surface of the material and the number of pores is 10 to 500 per ?m2; an oxygen concentration is below 0.8 atomic %; and the ratio of the peak height (ID) of D band in a Raman scattering spectrum of the material to that of the peak height (IG) of G band at 1,570 to 1,596 cm?1 in the spectrum (ID/IG) is between 1 and 1.35. The porous graphene material is suitable for conductive additives for electrodes of Lithium ion battery.Type: GrantFiled: August 21, 2015Date of Patent: May 26, 2020Assignee: NEC CORPORATIONInventors: Qian Cheng, Noriyuki Tamura
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Patent number: 10622678Abstract: In terms of a lithium ion secondary battery using, in a positive electrode, a lithium transition metal composite oxide containing an over-stoichiometric amount of lithium, a lithium ion secondary battery in which an amount of a gas generated during charge/discharge cycles is reduced and capacity retention is improved is provided. The lithium ion secondary battery includes a positive electrode containing a lithium transition metal composite oxide containing Fe and containing an over-stoichiometric amount of lithium, and a nonaqueous electrolyte solution, and the nonaqueous electrolyte solution contains a nonaqueous organic solvent, an electrolyte, and lithium difluorophosphate.Type: GrantFiled: June 23, 2016Date of Patent: April 14, 2020Assignee: NEC CORPORATIONInventors: Katsumi Maeda, Noriyuki Tamura, Sadanori Hattori
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Patent number: 10608276Abstract: The present invention provides a novel carbon material comprising a three-dimensional graphene network constituting a plurality of cells interconnecting as a whole, where at least one of the cells has single-layer graphene wall. The carbon material is suitable for a lithium ion battery.Type: GrantFiled: August 29, 2014Date of Patent: March 31, 2020Assignee: NEC CorporationInventors: Qian Cheng, Noriyuki Tamura, Kentaro Nakahara
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Patent number: 10601043Abstract: The present invention provides an anode material for a lithium-ion battery comprising a carbon particle having a particle size of 5 ?m to 30 ?m, and including defective portions on a surface of the carbon particle, the defective portions being holes or pores formed by anodic oxidation of the carbon particle.Type: GrantFiled: August 29, 2014Date of Patent: March 24, 2020Assignee: NEC CorporationInventors: Qian Cheng, Noriyuki Tamura, Kentaro Nakahara
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Patent number: 10535876Abstract: The present invention provides an anode material for a lithium-ion battery comprising a carbon particle having a particle size of 5 ?m to 30 ?m, and including defective portions on a surface of the carbon particle, the defective portions being grooves formed by cathodically exfoliating graphene layers from the carbon particle.Type: GrantFiled: August 29, 2014Date of Patent: January 14, 2020Assignee: NEC CorporationInventors: Qian Cheng, Noriyuki Tamura