Patents by Inventor Masayuki Oya
Masayuki Oya 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: 20220200015Abstract: An electrode for a redox flow battery through which an electrolyte is circulated includes a porous body, and reactive particles that contribute to a battery reaction. The reactive particles are pressed against the porous body by a flow of the electrolyte without being immobilized on the porous body.Type: ApplicationFiled: February 20, 2020Publication date: June 23, 2022Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Takahiro IKEGAMI, Yongrong DONG, Masayuki OYA, Ryojun SEKINE
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Publication number: 20220153591Abstract: To provide a carbon electrode material that is capable of decreasing cell resistance during initial charging and discharging to improve battery energy efficiency. A carbon electrode material for a negative electrode of a manganese/titanium-based redox flow battery including carbon fibers (A), carbon particles (B) other than graphite particles, and a carbon material (C) for binding the carbon fibers (A) and the carbon particles (B) other than graphite particles and satisfying (1) a particle diameter of the carbon particles (B), (2) Lc(B), (3) Lc(C)/Lc(A), (4) A mesopore specific surface area, and (5) a number of oxygen atoms bound to the surface of the carbon electrode material.Type: ApplicationFiled: March 6, 2020Publication date: May 19, 2022Applicants: TOYOBO CO., LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Kana Morimoto, Masaru Kobayashi, Ryouhei Iwahara, Takahiro Matsumura, Masayuki Oya, Yongrong Dong, Yoshiyasu Kawagoe, Koichi Hashimoto
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Publication number: 20220140355Abstract: To provide a carbon electrode material which is capable of decreasing cell resistance during initial charging and discharging while improving oxidation resistance to Mn ions. A carbon electrode material for a redox flow battery, including carbon fibers (A), graphite particles (B), and a carbon material (C) for binding the carbon fibers (A) and the graphite particles (B), the carbon electrode material satisfying (1) Lc(C), (2) Lc(C)/Lc(A), (3) an average curvature of the carbon fibers (A), and (4) a number of oxygen atoms bound to a surface of the carbon electrode material.Type: ApplicationFiled: March 6, 2020Publication date: May 5, 2022Applicants: TOYOBO CO., LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Ryouhei Iwahara, Masaru Kobayashi, Takahiro Matsumura, Kana Morimoto, Masayuki Oya, Yongrong Dong, Kenichi Itou, Takahiro Ikegami
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Patent number: 11139481Abstract: A redox flow battery electrode includes an aggregate of a base containing carbon. When, on a cross section of the base, a circle that is centered at a center of gravity of the base and that has a diameter which is 95% of an isoarea equivalent circle diameter of the base is defined as a reference circle, the base includes a plurality of penetrating holes which extend from a surface toward an interior of the base and whose paths along extension directions of the penetrating holes are partially present within the reference circle.Type: GrantFiled: November 15, 2017Date of Patent: October 5, 2021Assignee: Sumitomo Electric Industries, Ltd.Inventors: Masayuki Oya, Kenichi Ito
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Patent number: 11101466Abstract: A carbon electrode material is disclosed for a redox flow battery that particularly, even when using an Mn—Ti type electrolyte, while stabilizing Mn ions and suppressing a rise in cell resistance during initial charge and discharge, has excellent oxidation resistance. The electrode material includes a carbonaceous fiber, and a carbonaceous material for binding the carbonaceous fiber, and satisfies the requirements: (1) when the size of a crystallite in a c axis direction found by X-ray diffraction in the carbonaceous material (B) is Lc(B), Lc(B) is 10 nm or greater; (2) when the size of the crystallite in the c axis direction found by X-ray diffraction in the carbonaceous fiber (A) is Lc(A), Lc(B)/Lc(A) is 1.0 or greater; and (3) the number of bonded oxygen atoms of the carbon electrode material surface is 1.0% or greater than the total number of carbon atoms of the carbon electrode material surface.Type: GrantFiled: August 29, 2018Date of Patent: August 24, 2021Assignees: TOYOBO CO., LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Toshikatsu Enjoji, Takahiro Matsumura, Ryouhei Iwahara, Masaru Kobayashi, Masako Tatsuta, Yongrong Dong, Masayuki Oya, Kenichi Itou, Yoshiyasu Kawagoe
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Publication number: 20210126263Abstract: A redox flow battery electrode includes a substrate and a catalytic unit supported on the substrate. The substrate contains at least one element selected from the group consisting of C, Ti, Sn, Ta, Ce, In, W, and Zn, and the catalytic unit contains at least one element selected from the group consisting of Fe, Si, Mo, Ce, Mn, Cu, and W.Type: ApplicationFiled: April 25, 2019Publication date: April 29, 2021Applicant: Sumitomo Electric Industries, Ltd.Inventors: Takahiro IKEGAMI, Yong-rong DONG, Masayuki OYA, Ryojun SEKINE
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Publication number: 20200403248Abstract: A redox flow battery electrode includes an aggregate of a base containing carbon. When, on a cross section of the base, a circle that is centered at a center of gravity of the base and that has a diameter which is 95% of an isoarea equivalent circle diameter of the base is defined as a reference circle, the base includes a plurality of penetrating holes which extend from a surface toward an interior of the base and whose paths along extension directions of the penetrating holes are partially present within the reference circle.Type: ApplicationFiled: November 15, 2017Publication date: December 24, 2020Applicant: Sumitomo Electric Industries, Ltd.Inventors: Masayuki OYA, Kenichi ITO
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Publication number: 20200373583Abstract: A carbon electrode material is disclosed for a redox flow battery that particularly, even when using an Mn—Ti type electrolyte, while stabilizing Mn ions and suppressing a rise in cell resistance during initial charge and discharge, has excellent oxidation resistance. The electrode material includes a carbonaceous fiber, and a carbonaceous material for binding the carbonaceous fiber, and satisfies the requirements: (1) when the size of a crystallite in a c axis direction found by X-ray diffraction in the carbonaceous material (B) is Lc(B), Lc(B) is 10 nm or greater; (2) when the size of the crystallite in the c axis direction found by X-ray diffraction in the carbonaceous fiber (A) is Lc(A), Lc(B)/Lc(A) is 1.0 or greater; and (3) the number of bonded oxygen atoms of the carbon electrode material surface is 1.0% or greater than the total number of carbon atoms of the carbon electrode material surface.Type: ApplicationFiled: August 29, 2018Publication date: November 26, 2020Applicants: TOYOBO CO., LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Toshikatsu Enjoji, Takahiro Matsumura, Ryouhei Iwahara, Masaru Kobayashi, Masako Tatsuta, Yongrong Dong, Masayuki Oya, Kenichi Itou, Yoshiyasu Kawagoe
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Patent number: 10065461Abstract: A tire valve registration system including: a plurality of tire valves that are respectively installed on a plurality of tires and on a spare tire and that each transmit a radio signal that includes a valve ID and data on tire air pressure; and a receiver that is provided to a vehicle body and that is capable of receiving the radio signal from each of the plurality of tire valves. The system includes: a spare tire ID collecting unit that collects, as at least one spare tire candidate ID, the valve ID of at least one radio signal received by the receiver; and a spare tire ID confirming unit that confirms the ID of the spare tire.Type: GrantFiled: December 23, 2014Date of Patent: September 4, 2018Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHOInventors: Kei Kitagawa, Katsuhide Kumagai, Yasuhiro Shibata, Masayuki Oya
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Publication number: 20170028797Abstract: A tire valve registration system including: a plurality of tire valves that are respectively installed on a plurality of tires and on a spare tire and that each transmit a radio signal that includes a valve ID and data on tire air pressure; and a receiver that is provided to a vehicle body and that is capable of receiving the radio signal from each of the plurality of tire valves. The system includes: a spare tire ID collecting unit that collects, as at least one spare tire candidate ID, the valve ID of at least one radio signal received by the receiver; and a spare tire ID confirming unit that confirms the ID of the spare tire.Type: ApplicationFiled: December 23, 2014Publication date: February 2, 2017Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHOInventors: Kei KITAGAWA, Katsuhide KUMAGAI, Yasuhiro SHIBATA, Masayuki OYA
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Patent number: 9257697Abstract: A positive electrode material that can form a positive electrode mixture containing composition with reduced changes over time and high productivity, a manufacturing method thereof, a non-aqueous rechargeable battery less likely to swell and having a high storage characteristic during storage at high temperatures, and a positive electrode that can form the battery are provided. The object is solved by providing a positive electrode material having a coating layer of an organic silane compound on a surface of a positive electrode active material made of a lithium nickel composite oxide represented by the general compositional formula (1): Li1+xMO2 where ?0.5?x?0.5, M represents a group of at least two elements including at least one of Mn and Co and Ni, and 20?a<100 and 50?a+b+c?100 when the ratios (mol %) of Ni, Mn, and Co in the elements forming M are a, b, and c, respectively.Type: GrantFiled: January 13, 2011Date of Patent: February 9, 2016Assignee: HITACHI MAXELL, LTD.Inventors: Masayuki Oya, Mitsuhiro Kishimi, Satoshi Kono
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Patent number: 8846779Abstract: The present invention provides an energy ray-curable ink composition excellent in the continuous discharge property, and excellent in curability and adherability. The present invention relates to an energy ray-curable ink composition which contains a coloring agent, contains only a monofunctional monomer having an acrylic equivalent of 300 or less, and having one ethylenic double bond in one molecule, and a polyfunctional monomer having an acrylic equivalent of 150 or less, and having two or more ethylenic double bonds in one molecule as a polymerizable compound, contains an ?-aminoalkylphenone compound and a thioxanthone compound as a photopolymerization initiator, and contains a silicone compound having a polydimethylsiloxane structure as a surface conditioner.Type: GrantFiled: May 15, 2009Date of Patent: September 30, 2014Assignee: Hitachi Maxell, Ltd.Inventors: Katsuyuki Kito, Masayuki Oya, Satoshi Kobayashi
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Publication number: 20130230770Abstract: A non-aqueous secondary battery of the present invention includes a positive electrode, a negative electrode, a separator and a non-aqueous electrolyte. The positive electrode includes a lithium-containing composite oxide as a positive electrode active material, expressed by a general compositional formula (1): Li1+yMO2 where ?0.5?y?0.5. M denotes an element group including Ni and at least one element selected from the group consisting of Co, Mn, Fe and Ti. And the non-aqueous electrolyte includes a cycloalkane derivative A having at least one alkyl ether group containing an unsaturated bond, and at least one compound selected from the group consisting of an azacrown ether compound B having a functional group where at least one of nitrogen atoms contains an unsaturated bond and a nitrogen-containing heterocyclic compound C.Type: ApplicationFiled: November 15, 2011Publication date: September 5, 2013Applicant: HITACHI MAXELL, LTD.Inventors: Masayuki Oya, Mitsuhiro Kishimi, Fusaji Kita
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Publication number: 20130183578Abstract: There is provided a positive electrode material used for a positive electrode of a non-aqueous secondary battery. The positive electrode material includes: a positive electrode active material; and at least one selected from the group consisting of (i) a compound having two or more epoxy groups, (ii) a ring-cleavage form of the compound in which at least one of the epoxy groups is opened, and (iii) a polymer of the compound.Type: ApplicationFiled: August 25, 2011Publication date: July 18, 2013Applicant: HITACHI MAXELL, LTD.Inventors: Masayuki Oya, Mitsuhiro Kishimi
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Publication number: 20130071758Abstract: The nonaqueous electrolyte for an electrochemical device of the present invention includes at least one selected from an imide compound represented by the general formula (1) and an imide compound represented by the general formula (2): where R1 is an organic residue or an F-containing organic residue, X1 and X2 are each H, F, an organic residue or an F-containing organic residue, and X1 and X2 may be the same or different from each other; and where R2 is an organic residue or an F-containing organic residue, and H of a benzene ring may be partially or entirely replaced with F.Type: ApplicationFiled: September 13, 2012Publication date: March 21, 2013Applicant: HITACHI MAXELL ENERGY, LTD.Inventors: Masayuki OYA, Mitsuhiro KISHIMI, Fusaji KITA
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Publication number: 20120321948Abstract: A positive electrode material that can form a positive electrode mixture containing composition with reduced changes over time and high productivity, a manufacturing method thereof, a non-aqueous rechargeable battery less likely to swell and having a high storage characteristic during storage at high temperatures, and a positive electrode that can form the battery are provided. The object is solved by providing a positive electrode material having a coating layer of an organic silane compound on a surface of a positive electrode active material made of a lithium nickel composite oxide represented by the general compositional formula (1): Li1+xMO2 where ?0.5?x?0.5, M represents a group of at least two elements including at least one of Mn and Co and Ni, and 20?a?100 and 50?a+b+c?100 when the ratios (mol %) of Ni, Mn, and Co in the elements forming M are a, b, and c, respectively.Type: ApplicationFiled: January 13, 2011Publication date: December 20, 2012Inventors: Masayuki Oya, Mitsuhiro Kishimi, Satoshi Kono
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Patent number: 8124666Abstract: An object of the present invention is to provide an energy ray-curable ink composition which is excellent in curability and adhesion, and is also excellent in storage stability. The present invention relates to an energy ray-curable ink composition comprising a coloring material; a polyfunctional monomer having three or more ethylenical double bonds in one molecule as a polymerizable compound; an ?-aminoalkylphenone-based compound and a thioxanthone-based compound as photopolymerization initiators; and a hindered amine-based compound having a 2,2,6,6-tetramethylpiperidinyl group as an antigelling agent.Type: GrantFiled: February 4, 2009Date of Patent: February 28, 2012Assignee: Hitachi Maxell, Ltd.Inventors: Katsuyuki Kito, Masayuki Oya, Satoshi Kobayashi
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Publication number: 20110269018Abstract: An electrode for an electrochemical device of the present invention includes an electrode mixture layer that includes a lithium-containing composite oxide expressed by the general composition formula (1): Li1+xMO2 as an active material, where x satisfies ?0.3?x?0.3 and M represents an element group including Ni, Mn, and Mg. The relationships 70?a?97, 0.5<b<30, 0.5<c<30, ?10<b?c<10, and ?8?(b?c)/c?8 are established, where a, b, and c represent the ratios of the number of elements of Ni, Mn, and Mg in the element group M to the total number of elements in the element group M, respectively, in units of mol %. The Ni has an average valence of 2.5 to 3.2, the Mn has an average valence of 3.5 to 4.2, and the Mg has an average valence of 1.8 to 2.2.Type: ApplicationFiled: June 17, 2010Publication date: November 3, 2011Inventors: Satoshi Kono, Mitsuhiro Kishimi, Masayuki Oya
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Publication number: 20110015294Abstract: The present invention provides an energy ray-curable ink composition excellent in the continuous discharge property, and excellent in curability and adherability. The present invention relates to an energy ray-curable ink composition which contains a coloring agent, contains only a monofunctional monomer having an acrylic equivalent of 300 or less, and having one ethylenic double bond in one molecule, and a polyfunctional monomer having an acrylic equivalent of 150 or less, and having two or more ethylenic double bonds in one molecule as a polymerizable compound, contains an ?-aminoalkylphenone compound and a thioxanthone compound as a photopolymerization initiator, and contains a silicone compound having a polydimethylsiloxane structure as a surface conditioner.Type: ApplicationFiled: May 15, 2009Publication date: January 20, 2011Inventors: Katsuyuki Kito, Masayuki Oya, Satoshi Kobayashi
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Publication number: 20090197988Abstract: An object of the present invention is to provide an energy ray-curable ink composition which is excellent in curability and adhesion, and is also excellent in storage stability. The present invention relates to an energy ray-curable ink composition comprising a coloring material; a polyfunctional monomer having three or more ethylenical double bonds in one molecule as a polymerizable compound; an ?-aminoalkylphenone-based compound and a thioxanthone-based compound as photopolymerization initiators; and a hindered amine-based compound having a 2,2,6,6-tetramethylpiperidinyl group as an antigelling agent.Type: ApplicationFiled: February 4, 2009Publication date: August 6, 2009Inventors: Katsuyuki Kito, Masayuki Oya, Satoshi Kobayashi