Patents by Inventor Taisuke Yamamoto
Taisuke Yamamoto 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: 12045133Abstract: In each node constituting a storage system, there is at least one of a storage area (user area) in which a user data set is stored and a storage area (parity area). For the node having the user area, there is user part difference information including information indicating whether or not to be in presence of difference for each user area of the node. For the node having the parity area, there is parity part difference information including the information indicating whether or not to be in the presence of difference for each parity area of the node. Out of the parity part difference information, the information corresponding to the parity area is the information indicating the presence of difference when there is the information indicating the presence of difference in the storage area of any of the data sets used for generating the parity stored in the parity area.Type: GrantFiled: September 8, 2022Date of Patent: July 23, 2024Assignee: HITACHI, LTD.Inventors: Takahiro Yamamoto, Hideo Saito, Shintaro Ito, Sachie Tajima, Hiroto Ebara, Taisuke Ono
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Patent number: 11984604Abstract: A lithium ion battery including a negative electrode having a negative electrode active material layer that contains lithium silicate particles and a binder. The lithium silicate particles include composite particles including a lithium silicate phase and silicon particles dispersed in the lithium silicate phase, wherein a carbon material is present inside the composite particles, and an area ratio of the carbon material occupying a cross section of the composite particles is 0.008 to 6%. The binder includes at least a first resin, wherein the first resin is at least cue selected from the group consisting of polyacrylic acid, a polyacrylic acid salt, and their derivatives. The first resin is contained in an amount of 2 mass % or less in the negative electrode active material layer.Type: GrantFiled: October 26, 2018Date of Patent: May 14, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yohei Uchiyama, Taisuke Yamamoto, Tatsuya Akira, Norihisa Yamamoto, Hiroshi Minami
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Patent number: 11949091Abstract: A charging method of a non-aqueous electrolyte secondary battery involves a first charging step in which, defining x as the ratio of the capacity of a silicon compound to the rated capacity Q (0.1?x?0.5), charging is performed at a first fixed current value I1st that satisfies the expression below; and a high current charging step in which after completion of the first charging step, charging is performed at a fixed current value Imax higher than the first fixed current value I1st.Type: GrantFiled: January 25, 2019Date of Patent: April 2, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masahiro Soga, Taisuke Yamamoto
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Patent number: 11916220Abstract: A charging method of a non-aqueous electrolyte secondary battery involves a first charging step in which, defining x as the ratio of the capacity of a silicon compound to the rated capacity Q (0.1?x?0.5), charging is performed at a first fixed current value I1st that satisfies the expression below; and a high current charging step in which after completion of the first charging step, charging is performed at a fixed current value Imax higher than the first fixed current value I1st.Type: GrantFiled: January 25, 2019Date of Patent: February 27, 2024Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masahiro Soga, Taisuke Yamamoto
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Patent number: 11811255Abstract: A charging method of a non-aqueous electrolyte secondary battery involves a first charging step in which, defining x as the ratio of the capacity of a silicon compound to the rated capacity Q(0.1?x?0.5), a battery capacity Q1st that satisfies the expression below is charged at a first fixed current value; and a high current charging step in which, after completion of the first charging step, charging is performed at a fixed current value higher than the first fixed current value. 0.38x+0.063???Q1st/Q?0.38x+0.Type: GrantFiled: January 22, 2019Date of Patent: November 7, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masahiro Soga, Taisuke Yamamoto
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Patent number: 11495833Abstract: A battery comprises a first polarity terminal that is attached via a first insulating member to an opening of an outer case. A first polarity plate includes: a first core formed of a conductive material; and a first active material layer. A first drawn-out portion is formed from a side of the first core on the first polarity terminal side thereof being drawn further out than a side of the first active material layer on the first polarity terminal side thereof. The first drawn-out portion includes a first bent portion that is bent towards the radially inner or outer side of the electrode body. A first surface of a first polarity collector plate contacts the surface of the first bent portion on the first polarity terminal side, and the first polarity terminal connects directly or via a conductive member to a second surface of the first polarity collector plate.Type: GrantFiled: April 2, 2019Date of Patent: November 8, 2022Assignees: SANYO Electric Co., Ltd., PANASONIC HOLDINGS CORPORATIONInventors: Natsuhiko Mukai, Satoshi Yamamoto, Masaki Deguchi, Taisuke Yamamoto, Atsushi Ueda, Masanobu Takeuchi
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Patent number: 11448702Abstract: A method for charging a nonaqueous electrolyte secondary battery includes a first charging step of charging a first capacity Q1st at a first constant current value I1st, the first capacity Q1st including a capacity range in which dQSi/dQ is more than or equal to a predetermined threshold value, a second charging step of charging a second capacity at a second constant current value more than the first constant current value, a detection step of acquiring at least one of dV/dQ and dQSi/dQ, and a changing step of changing at least one of the timing of switching between the first charging step and the second charging step and the first constant current value I1st on the basis of a change in time of dV/dQ or dQSi/dQ.Type: GrantFiled: May 20, 2019Date of Patent: September 20, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yuto Horiuchi, Taisuke Yamamoto
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Patent number: 11362321Abstract: A negative electrode material includes a graphite material, an alkali metal salt, and at least one metal material selected from the group consisting of Fe, Mn, Mg, Ni, Pd, Rh, Os, and Pt. The graphite material contains natural graphite.Type: GrantFiled: February 14, 2018Date of Patent: June 14, 2022Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Tatsuya Akira, Taisuke Yamamoto
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Patent number: 11271197Abstract: Disclosed is a negative electrode material for a non-aqueous electrolyte secondary battery, including: a lithium silicate phase; silicon particles dispersed in the lithium silicate phase; and at least one element Me dispersed in the lithium silicate phase, and selected from the group consisting of a rare-earth element and an alkaline-earth metal. The composition of the lithium silicate phase is represented, for example, by the formula: Li2zSiO2+z, and satisfies 0<z<2, and the element Me is dispersed in the lithium silicate phase, for example, as an Me oxide.Type: GrantFiled: February 16, 2018Date of Patent: March 8, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Taisuke Asano, Yohei Uchiyama, Taisuke Yamamoto, Tatsuya Akira, Norihisa Yamamoto, Hiroshi Minami
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Patent number: 11196040Abstract: Disclosed is a negative electrode material including: a lithium silicate phase that contains a lithium silicate; and silicon particles that are dispersed in the lithium silicate phase, wherein the silicon particles have a crystallite size of 10 nm or more, and the lithium silicate has a composition represented by the following formula: Li2Si2O5.(x?2)SiO2, where 2<x?18 is satisfied.Type: GrantFiled: November 17, 2017Date of Patent: December 7, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yohei Uchiyama, Taisuke Yamamoto, Tatsuya Akira, Norihisa Yamamoto, Hiroshi Minami
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Publication number: 20210364575Abstract: A method for charging a nonaqueous electrolyte secondary battery includes a first charging step of charging a first capacity Q1st at a first constant current value I1st, the first capacity Q1st including a capacity range in which dQSi/dQ is more than or equal to a predetermined threshold value, a second charging step of charging a second capacity at a second constant current value more than the first constant current value, a detection step of acquiring at least one of dV/dQ and dQSi/dQ, and a changing step of changing at least one of the timing of switching between the first charging step and the second charging step and the first constant current value I1st on the basis of a change in time of dV/dQ or dQSi/dQ.Type: ApplicationFiled: May 20, 2019Publication date: November 25, 2021Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yuto Horiuchi, Taisuke Yamamoto
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Publication number: 20210210792Abstract: A battery comprises a first polarity terminal that is attached via a first insulating member to an opening of an outer case. A first polarity plate includes: a first core formed of a conductive material; and a first active material layer. A first drawn-out portion is formed from a side of the first core on the first polarity terminal side thereof being drawn further out than a side of the first active material layer on the first polarity terminal side thereof. The first drawn-out portion includes a first bent portion that is bent towards the radially inner or outer side of the electrode body. A first surface of a first polarity collector plate contacts the surface of the first bent portion on the first polarity terminal side, and the first polarity terminal connects directly or via a conductive member to a second surface of the first polarity collector plate.Type: ApplicationFiled: April 2, 2019Publication date: July 8, 2021Applicants: SANYO Electric Co., Ltd., Panasonic CorporationInventors: Natsuhiko Mukai, Satoshi Yamamoto, Masaki Deguchi, Taisuke Yamamoto, Atsushi Ueda, Masanobu Takeuchi
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Publication number: 20210119289Abstract: This non-aqueous electrolyte secondary battery that is an example of an embodiment comprises a winding type electrode body for which a positive electrode and a negative electrode are wound with a separator interposed. The electrode body has a positive electrode lead. The positive electrode lead has: a lead base made of metal that includes a first surface joined to the positive electrode, and a second surface on the side opposite to the first surface; and an insulating ceramic layer principally comprising an inorganic compound and formed over a range within the second surface of the lead base so as to face the negative electrode with at least the separator interposed therebetween.Type: ApplicationFiled: April 2, 2019Publication date: April 22, 2021Applicants: SANYO Electric Co., Ltd., Panasonic CorporationInventors: Natsuhiko Mukai, Satoshi Yamamoto, Masaki Deguchi, Taisuke Yamamoto, Atsushi Ueda, Masanobu Takeuchi
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Publication number: 20210104728Abstract: A negative electrode material includes a graphite material, an alkali metal salt, and at least one metal material selected from the group consisting of Fe, Mn, Mg, Ni, Pd, Rh, Os, and Pt. The graphite material contains natural graphite.Type: ApplicationFiled: February 14, 2018Publication date: April 8, 2021Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Tatsuya Akira, Taisuke Yamamoto
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Publication number: 20200403432Abstract: A charging method of a non-aqueous electrolyte secondary battery involves a first charging step in which, defining x as the ratio of the capacity of a silicon compound to the rated capacity Q(0.1?x?0.5), a battery capacity Q1st that satisfies the expression below is charged at a first fixed current value; and a high current charging step in which, after completion of the first charging step, charging is performed at a fixed current value higher than the first fixed current value. 0.38x+0.063???Q1st/Q?0.38x+0.Type: ApplicationFiled: January 22, 2019Publication date: December 24, 2020Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masahiro Soga, Taisuke Yamamoto
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Publication number: 20200403220Abstract: A charging method of a non-aqueous electrolyte secondary battery involves a first charging step in which, defining x as the ratio of the capacity of a silicon compound to the rated capacity Q (0.1?x?0.5), charging is performed at a first fixed current value I1st that satisfies the expression below; and a high current charging step in which after completion of the first charging step, charging is performed at a fixed current value Imax higher than the first fixed current value I1st. 82/(81.8x+64)×(0.3/0.7)???I1st/Imax?82/(81.8x+64)×(0.3/0.7)+?(?=0.Type: ApplicationFiled: January 25, 2019Publication date: December 24, 2020Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masahiro Soga, Taisuke Yamamoto
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Publication number: 20200350591Abstract: A lithium battery including a negative electrode having a negative electrode active material layer that contains lithium silicate particles and a binder. The lithium silicate particles include composite particles including a lithium silicate phase and silicon particles dispersed in the lithium silicate phase, wherein a carbon material is present inside the composite particles, and an area ratio of the carbon material occupying a cross section of the composite particles is 0.008 to 6%. The binder includes at least a first resin, wherein the first resin is at least cue selected from the group consisting of polyacrylic acid, a polyacrylic acid salt, and their derivatives. The first resin is contained in an amount of 2 mass % or less in the negative electrode active material layer.Type: ApplicationFiled: October 26, 2018Publication date: November 5, 2020Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yohei Uchiyama, Taisuke Yamamoto, Tatsuya Akira, Norihisa Yamamoto, Hiroshi Minami
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Patent number: 10753492Abstract: A check valve includes a casing in which a fluid inlet, a valve chamber, a valve seat portion, and a fluid outlet are formed; a valve body disposed in the valve chamber; and an urging unit that urges the valve body to the valve seat portion side. The valve seat portion includes a first valve seat portion disposed on the fluid inlet side of the valve chamber, and a second valve seat portion disposed on an outer periphery side of the first valve seat portion. The valve body includes a first seal portion capable of coming into close contact with the first valve seat portion, a second seal portion capable of coming into close contact with the second valve seat portion, and a first hinge portion and a second hinge portion each of which is a starting point of bending of the second seal portion.Type: GrantFiled: July 27, 2017Date of Patent: August 25, 2020Assignee: MIURA CO., LTD.Inventors: Taisuke Yamamoto, Shinichiro Murakami
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Publication number: 20200020932Abstract: Disclosed is a negative electrode material for a non-aqueous electrolyte secondary battery, including: a lithium silicate phase; silicon particles dispersed in the lithium silicate phase; and at least one element Me dispersed in the lithium silicate phase, and selected from the group consisting of a rare-earth element and an alkaline-earth metal. The composition of the lithium silicate phase is represented, for example, by the formula: Li2zSiO2+z, and satisfies 0<z<2, and the element Me is dispersed in the lithium silicate phase, for example, as an Me oxide.Type: ApplicationFiled: February 16, 2018Publication date: January 16, 2020Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Taisuke Asano, Yohei Uchiyama, Taisuke Yamamoto, Tatsuya Akira, Norihisa Yamamoto, Hiroshi Minami
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Publication number: 20190319261Abstract: Disclosed is a negative electrode material including: a lithium silicate phase that contains a lithium silicate; and silicon particles that are dispersed in the lithium silicate phase, wherein the silicon particles have a crystallite size of 10 nm or more, and the lithium silicate has a composition represented by the following formula: Li2Si2O5.(x?2)SiO2, where 2<x?18 is satisfied.Type: ApplicationFiled: November 17, 2017Publication date: October 17, 2019Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yohei Uchiyama, Taisuke Yamamoto, Tatsuya Akira, Norihisa Yamamoto, Hiroshi Minami