Patents by Inventor Takuya Muraki
Takuya Muraki 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: 20250023154Abstract: A solid-state battery packaging material including at least a substrate layer, a barrier layer, and a sealant layer in this order. The substrate layer includes at least two biaxially stretched resin films, and one or more of the at least two resin films other than an outermost layer have a water content of 4000 mass ppm or less.Type: ApplicationFiled: September 27, 2024Publication date: January 16, 2025Applicant: TOPPAN HOLDINGS INC.Inventor: Takuya Muraki
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Publication number: 20240396136Abstract: A terminal resin film of a fully-solid-state battery is adhered by heat-sealing to an outer peripheral surface of a portion of a metal terminal that is electrically connected to a battery body constituting a fully-solid-state battery, wherein a moisture content is 2,700 ppm by mass or less. The terminal resin film may also be formed of a multilayer film having an insulating layer and a sealant layer provided on at least one surface of the insulating layer.Type: ApplicationFiled: July 31, 2024Publication date: November 28, 2024Applicant: TOPPAN HOLDINGS INC.Inventor: Takuya MURAKI
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Publication number: 20240387911Abstract: A fully-solid-state battery packaging material includes at least a substrate layer, a barrier layer, and a sealant layer in this order. The moisture content of the sealant layer is 2700 ppm by mass or less. The sealant layer is, for example, a polyolefin film containing a polyolefin-based resin or a polyester film containing a polyester-based resin.Type: ApplicationFiled: July 29, 2024Publication date: November 21, 2024Applicant: TOPPAN INC.Inventor: Takuya MURAKI
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Publication number: 20240178532Abstract: A tab sealant disposed covering at least a part of an outer surface of metal terminals of a power storage device, the tab sealant including: a first sealant layer disposed facing the metal terminal; a high-melting-point layer containing a polyolefin resin; and a second sealant layer, which are laminated in this order, wherein each of the first sealant layer and the second sealant layer includes a low-melting-point layer containing acid-modified polyolefin resin and a medium-melting-point layer disposed between the low-melting-point layer and the high-melting-point layer, the low-melting-point layer has a melting point of 100° ° C.to 135° ° C., the high-melting-point layer has a melting point of 140° ° C.to 170° C., and the melting point of the medium-melting-point layer is higher than the melting point of the low-melting-point layer by 10° C. or more and lower than the melting point of the high-melting-point layer by 10° C. or more.Type: ApplicationFiled: December 27, 2023Publication date: May 30, 2024Applicant: TOPPAN INC.Inventors: Takuya MURAKI, Junya IMAMOTO
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Publication number: 20220376330Abstract: A power storage device packaging material including at least a substrate layer, an outer adhesive layer, a barrier layer, and a sealant layer in this order, wherein a difference in linear expansion coefficient at 20 to 150° C. between the substrate layer and the barrier layer is 20×10?6/° C. or less in both an MD direction and a TD direction.Type: ApplicationFiled: August 4, 2022Publication date: November 24, 2022Applicant: TOPPAN INC.Inventor: Takuya MURAKI
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Publication number: 20220328871Abstract: A power storage device packaging material of the present disclosure includes: a laminate at least including a substrate layer, a barrier layer, and a sealant layer, which are disposed in this order; and an adhesive layer interposed between the substrate layer and the barrier layer, the adhesive layer containing a polyurethane-based compound made of a reaction product of at least one polyester polyol resin and at least one polyfunctional isocyanate compound, wherein the polyfunctional isocyanate compound contains an isocyanurate of isophorone diisocyanate, and a content of isocyanate groups derived from the isocyanurate of isophorone diisocyanate in the polyfunctional isocyanate compound is 5 mol % to 100 mol % relative to a total amount of isocyanate groups contained in the polyfunctional isocyanate compound of 100 mol %.Type: ApplicationFiled: June 21, 2022Publication date: October 13, 2022Applicant: TOPPAN INC.Inventors: Taketo NUMAZAWA, Tomohiko YAMAZAKI, Koji MURATA, Takuya MURAKI
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Patent number: 11264662Abstract: A power storage device packaging material includes a structure including at least a substrate layer, an adhesive layer, a metal foil layer, a sealant adhesive layer, and a sealant layer, which are laminated in this order, wherein the adhesive layer has a yield stress in the range of 3500 to 6500 N/cm2 and breaking elongation of 45 to 200% in a stress-strain curve determined by a tensile test at a tension rate of 6 mm/min. A power storage device packaging material according to the second aspect of the present disclosure includes a structure including at least a substrate layer, an adhesive layer, a metal foil layer, an anticorrosion treatment layer, a sealant adhesive layer, and a sealant layer, which are laminated in this order, wherein the adhesive layer has a glass transition temperature in a range of 140° C. or more and 160° C. or less.Type: GrantFiled: January 6, 2020Date of Patent: March 1, 2022Assignee: TOPPAN PRINTING, CO., LTD.Inventors: Satoshi Sasaki, Takuya Muraki, Tomohiko Yamazaki, Masayoshi Suzuta
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Publication number: 20210091435Abstract: A terminal coating resin film used for sealing current output terminals in power storage devices or power generation devices. The terminal coating resin film comprises a resin composition having adhesion to the current output terminals. The resin composition contains at least one of a thermosetting resin and a thermoplastic resin having a melting point of 160° C. or higher and does not contain any thermoplastic resin having a melting point of less than 160° C.Type: ApplicationFiled: December 3, 2020Publication date: March 25, 2021Applicant: TOPPAN PRINTING CO., LTD.Inventor: Takuya Muraki
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Publication number: 20210057683Abstract: A packaging material for a power storage device having a laminate structure in the following order including a substrate layer, a first adhesive layer, a metal foil layer, a second adhesive layer, and an inner layer containing a polyester-based resin. The inner layer has a melting peak temperature during melting in a range of 160 to 280° C. which is measured by a differential scanning calorimeter. The substrate layer has a melting peak temperature that is higher than the melting peak temperature of the inner layer.Type: ApplicationFiled: November 9, 2020Publication date: February 25, 2021Applicant: TOPPAN PRINTING CO., LTD.Inventors: Satoshi SASAKI, Takuya MURAKI, Naoto OONO
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Patent number: 10897030Abstract: A packaging material for a power storage device, the packaging material including a structure in which at least a substrate protective layer, a substrate layer, an adhesive layer, a metal foil layer, a sealant adhesive layer, and a sealant layer are laminated in this order, wherein the substrate protective layer is a cured product of a raw material containing a polyester resin or an acrylic resin, and a curing agent; the polyester resin or the acrylic resin has reactive groups reactive with the curing agent at a terminal position and/or in a side chain; the curing agent contains an isocyanate other than an alicyclic isocyanate, and an alicyclic isocyanate; and the ratio ([a]/[b]) of the weight of the isocyanate other than an alicyclic isocyanate [a] to the weight of the alicyclic isocyanate [b] is 99/1 to 80/20.Type: GrantFiled: September 14, 2018Date of Patent: January 19, 2021Assignee: TOPPAN PRINTING CO., LTD.Inventors: Takuya Muraki, Tomohiko Yamazaki, Masayoshi Suzuta
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Patent number: 10790481Abstract: The present invention relates to a packaging material for a power storage device, the packaging material having a structure in which at least a substrate protective layer, a substrate layer, an adhesive layer, a metal foil layer, a sealant adhesive layer, and a sealant layer are laminated in this order, wherein the substrate protective layer is a cured product of a raw material containing a polyester resin and a polyisocyanate, a ratio [NCO]/[OH] is 5 to 60, where [OH] is the number of moles of hydroxyl groups in the polyester resin, and [NCO] is the number of moles of isocyanate groups in the polyisocyanate, and the polyester resin has a hydroxyl value of 10 to 70 KOHmg/g.Type: GrantFiled: June 21, 2018Date of Patent: September 29, 2020Assignee: TOPPAN PRINTING CO., LTD.Inventors: Takuya Muraki, Tomohiko Yamazaki, Masayoshi Suzuta
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Patent number: 10707454Abstract: A packaging material for a power storage device includes a structure made up of a cover layer, a barrier layer, a sealant adhesive layer, and a sealant layer laminated in this general order. In the packaging material, the barrier layer has an aluminum foil layer and an anticorrosion treatment layer that is provided to a sealant layer side surface of the aluminum foil layer and faces the sealant adhesive layer. The sealant layer side surface of the aluminum foil layer has a 60° glossiness that is 690 or less in both MD and TD, and has a difference in 60° glossiness between MD and TD that is 100 or less.Type: GrantFiled: April 11, 2018Date of Patent: July 7, 2020Assignee: TOPPAN PRINTING CO., LTD.Inventors: Takuya Muraki, Shunsuke Nakanishi
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Publication number: 20200144562Abstract: A power storage device packaging material includes a structure including at least a substrate layer, an adhesive layer, a metal foil layer, a sealant adhesive layer, and a sealant layer, which are laminated in this order, wherein the adhesive layer has a yield stress in the range of 3500 to 6500 N/cm2 and breaking elongation of 45 to 200% in a stress-strain curve determined by a tensile test at a tension rate of 6 mm/min. A power storage device packaging material according to the second aspect of the present disclosure includes a structure including at least a substrate layer, an adhesive layer, a metal foil layer, an anticorrosion treatment layer, a sealant adhesive layer, and a sealant layer, which are laminated in this order, wherein the adhesive layer has a glass transition temperature in a range of 140° C. or more and 160° C. or less.Type: ApplicationFiled: January 6, 2020Publication date: May 7, 2020Applicant: TOPPAN PRINTING CO., LTD.Inventors: Satoshi SASAKI, Takuya MURAKI, Tomohiko YAMAZAKI, Masayoshi SUZUTA
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Patent number: 10581032Abstract: A lithium battery packaging material of the present invention includes a laminate in which a substrate layer, a first adhesive layer, a metal foil layer, a corrosion prevention treatment layer, a second adhesive layer, and a sealant layer are laminated in this order. In the packaging material, the corrosion prevention treatment layer contains an rare-earth oxide, and 1 to 100 parts by mass of phosphoric acid or phosphate relative to 100 parts by mass of the rare-earth oxide, the second adhesive layer includes an adhesive composition containing an acid modified polyolefin resin and a polyfunctional isocyanate compound, and, in an infrared absorption spectrum of the second adhesive layer, a ratio (Y/X) between absorption (X) derived from C—H bending vibration of CH3 and absorption (Y) derived from N—H bending vibration of a biuret bond is 0.3 or less.Type: GrantFiled: September 1, 2016Date of Patent: March 3, 2020Assignee: TOPPAN PRINTING CO., LTD.Inventors: Takuya Muraki, Tomohiko Yamazaki, Masayoshi Suzuta
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Publication number: 20190027715Abstract: A packaging material for a power storage device, the packaging material including a structure in which at least a substrate protective layer, a substrate layer, an adhesive layer, a metal foil layer, a sealant adhesive layer, and a sealant layer are laminated in this order, wherein the substrate protective layer is a cured product of a raw material containing a polyester resin or an acrylic resin, and a curing agent; the polyester resin or the acrylic resin has reactive groups reactive with the curing agent at a terminal position and/or in a side chain; the curing agent contains an isocyanate other than an alicyclic isocyanate, and an alicyclic isocyanate; and the ratio ([a]/[b]) of the weight of the isocyanate other than an alicyclic isocyanate [a] to the weight of the alicyclic isocyanate [b] is 99/1 to 80/20.Type: ApplicationFiled: September 14, 2018Publication date: January 24, 2019Applicant: TOPPAN PRINTING CO., LTD.Inventors: Takuya MURAKI, Tomohiko YAMAZAKI, Masayoshi SUZUTA
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Publication number: 20180301671Abstract: The present invention relates to a packaging material for a power storage device, the packaging material having a structure in which at least a substrate protective layer, a substrate layer, an adhesive layer, a metal foil layer, a sealant adhesive layer, and a sealant layer are laminated in this order, wherein the substrate protective layer is a cured product of a raw material containing a polyester resin and a polyisocyanate, a ratio [NCO]/[OH] is 5 to 60, where [OH] is the number of moles of hydroxyl groups in the polyester resin, and [NCO] is the number of moles of isocyanate groups in the polyisocyanate, and the polyester resin has a hydroxyl value of 10 to 70 KOHmg/g.Type: ApplicationFiled: June 21, 2018Publication date: October 18, 2018Applicant: TOPPAN PRINTING CO., LTD.Inventors: Takuya MURAKI, Tomohiko YAMAZAKI, Masayoshi SUZUTA
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Publication number: 20180233709Abstract: A packaging material for a power storage device includes a structure made up of a cover layer, a barrier layer, a sealant adhesive layer, and a sealant layer laminated in this general order. In the packaging material, the barrier layer has an aluminum foil layer and an anticorrosion treatment layer that is provided to a sealant layer side surface of the aluminum foil layer and faces the sealant adhesive layer. The sealant layer side surface of the aluminum foil layer has a 60° glossiness that is 690 or less in both MD and TD, and has a difference in 60° glossiness between MD and TD that is 100 or less.Type: ApplicationFiled: April 11, 2018Publication date: August 16, 2018Applicant: TOPPAN PRINTING CO., LTD.Inventors: Takuya MURAKI, Shunsuke NAKANISHI
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Publication number: 20160372720Abstract: A lithium battery packaging material of the present invention includes a laminate in which a substrate layer, a first adhesive layer, a metal foil layer, a corrosion prevention treatment layer, a second adhesive layer, and a sealant layer are laminated in this order. In the packaging material, the corrosion prevention treatment layer contains an rare-earth oxide, and 1 to 100 parts by mass of phosphoric acid or phosphate relative to 100 parts by mass of the rare-earth oxide, the second adhesive layer includes an adhesive composition containing an acid modified polyolefin resin and a polyfunctional isocyanate compound, and, in an infrared absorption spectrum of the second adhesive layer, a ratio (Y/X) between absorption (X) derived from C—H bending vibration of CH3 and absorption (Y) derived from N—H bending vibration of a biuret bond is 0.3 or less.Type: ApplicationFiled: September 1, 2016Publication date: December 22, 2016Applicant: TOPPAN PRINTING CO., LTD.Inventors: Takuya MURAKI, Tomohiko YAMAZAKI, Masayoshi SUZUTA
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Patent number: 8920959Abstract: According to the present invention, a lithium ion battery outer cover material that has superior resistance to electrolytes without chromate treatment, has superior deep drawing formability and high quality, and can be produced easily is provided. The lithium ion battery outer cover material (1) of a first embodiment of the present invention has a base material layer (11), first adhesive layer (12) containing an adhesive, aluminum foil layer (13), corrosion prevention treated layer (14), second adhesive layer (15) containing an adhesive or adhesive resin, and sealant layer (16) laminated in that order. The base material layer (11) is a film base material in which the difference (?2??1) of the elasticity (?1) to the yield point and the elasticity (?2) to the rupture point as measured according to JIS-K7127 is 100% or greater in at least one of the MD direction and TD direction.Type: GrantFiled: September 7, 2011Date of Patent: December 30, 2014Assignee: Toppan Printing Co., Ltd.Inventors: Masayoshi Suzuta, Takuya Muraki
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Publication number: 20130149597Abstract: According to the present invention, a lithium ion battery outer cover material that has superior resistance to electrolytes without chromate treatment, has superior deep drawing formability and high quality, and can be produced easily is provided. The lithium ion battery outer cover material (1) of a first embodiment of the present invention has a base material layer (11), first adhesive layer (12) containing an adhesive, aluminum foil layer (13), corrosion prevention treated layer (14), second adhesive layer (15) containing an adhesive or adhesive resin, and sealant layer (16) laminated in that order. The base material layer (11) is a film base material in which the difference (?2??1) of the elasticity (?1) to the yield point and the elasticity (?2) to the rupture point as measured according to JIS-K7127 is 100% or greater in at least one of the MD direction and TD direction.Type: ApplicationFiled: September 7, 2011Publication date: June 13, 2013Inventors: Masayoshi Suzuta, Takuya Muraki