Patents by Inventor Tetsuya Ojiri
Tetsuya Ojiri 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: 20230099270Abstract: Provided is an exterior material for an electrical storage device that can be cold molded, the exterior material being configured from a layered body comprising at least a base material layer, an adhesive agent layer, a barrier layer, and a thermally fusible resin layer in the stated order, wherein the exterior material for an electrical storage device has exceptional moist heat resistance. An exterior material for an electrical storage device, the exterior material being configured from a layered body comprising at least a base material layer, an adhesive agent layer, a barrier layer, and a thermally fusible resin layer in the stated order, the adhesive agent layer having moist heat resistance, and it being possible to conduct cold molding on the layered body.Type: ApplicationFiled: February 10, 2021Publication date: March 30, 2023Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Atsushi NAGAI, Toshiki KATOKU, Tetsuya OJIRI, Takayuki KOMAI
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Patent number: 10886506Abstract: Provided is a cell packaging material having a high insulating performance and durability. A cell packaging material comprising a layered body provided with at least a substrate layer, a metal layer, an adhesive layer, and a heat-fusible resin layer in the stated order. The adhesive layer has a resin composition that contains an acid-modified polyolefin and an epoxy resin. In probe displacement amount measurements involving the use of a thermal mechanical analyzer, when a probe is placed on the surface of the adhesive layer at an end part of the cell packaging material and the probe is heated from 40° C. to 220° C., the position of the probe does not drop in relation to the initial value.Type: GrantFiled: March 30, 2016Date of Patent: January 5, 2021Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Kaoru Miyazaki, Hirotoshi Sakamoto, Yousuke Hayakawa, Rikiya Yamashita, Takanori Yamashita, Tsuyoshi Suzuki, Yoichi Mochizuki, Kazuhiko Yokota, Tetsuya Ojiri
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Patent number: 10847762Abstract: A battery packaging material has a very thin aluminum alloy foil with a thickness of not more than 40 ?m, in which pinholes or cracks are unlikely to occur during molding, which has excellent moldability and appearance after molding, which is unlikely to be erroneously determined to be a defective product, and which makes highly accurate defect determination possible. The battery packaging material includes a stacked member provided with at least, in this order: a base material layer; an aluminum alloy foil layer; and a heat sealable resin layer, wherein: the aluminum alloy foil layer has a thickness of not more than 40 ?m; the aluminum alloy foil layer is an aluminum alloy conforming to JIS standard A8021; and the aluminum alloy has a maximum crystal grain size of not more than 25 ?m, and an average crystal grain size of not more than 10 ?m.Type: GrantFiled: April 14, 2017Date of Patent: November 24, 2020Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Tetsuya Ojiri, Hiroshi Kishida, Kenji Kanda
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Patent number: 10777785Abstract: A battery packaging material includes a laminate that includes at least a base material layer, a metal layer, an insulating layer, and a sealant layer laminated in this order. The insulating layer is formed of a resin composition containing a modified polyolefin resin modified with an unsaturated carboxylic acid or acid anhydride thereof and has a hardness, when measured by using a nanoindenter and pressing an indenter 5 ?m into the insulating layer from a cross-section of the laminate in the laminating direction thereof, that ranges from 10 MPa to 300 MPa. In the sealant layer, an elastic modulus, when measured by using a nanoindenter and pressing an indenter 5 ?m into the sealant layer from a cross-section of the laminate in the laminating direction thereof, ranges from 100 MPa to 1000 MPa.Type: GrantFiled: January 28, 2019Date of Patent: September 15, 2020Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Tetsuya Ojiri, Tsuyoshi Suzuki, Kazuhiko Yokota, Rikiya Yamashita, Masakazu Kandori
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Patent number: 10581033Abstract: A battery packaging material has an excellent ink printing characteristic on a base-layer-side surface. This battery packaging material has a laminated body formed by sequentially stacking at least a base layer, a metal layer, and a sealant layer, with the wet tensile strength of the surface of the base layer being 32 mN/m or greater.Type: GrantFiled: September 3, 2015Date of Patent: March 3, 2020Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Makoto Amano, Rikiya Yamashita, Tetsuya Ojiri, Shunsuke Ueda
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Patent number: 10347877Abstract: Presented is battery packaging material which is made of a laminate including, as the essentials, a base material layer, a metal layer and a sealant layer in this order. When a product obtained by packaging a battery element with the packaging material in a hermetically sealed state through heat sealing is heated, the packaging material delaminates at least at a part of the interface between the metal layer and the outside surface of the sealant layer with the hermetically sealed state being kept, and thereafter works so as to make the product unsealed.Type: GrantFiled: February 5, 2014Date of Patent: July 9, 2019Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Hiroki Douke, Yoshihiro Shinohara, Tsuyoshi Suzuki, Rikiya Yamashita, Kazuhiko Yokota, Masakazu Kandori, Yaichiro Hori, Tetsuya Ojiri
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Publication number: 20190157633Abstract: A battery packaging material includes a laminate that includes at least a base material layer, a metal layer, an insulating layer, and a sealant layer laminated in this order. The insulating layer is formed of a resin composition containing a modified polyolefin resin modified with an unsaturated carboxylic acid or acid anhydride thereof and has a hardness, when measured by using a nanoindenter and pressing an indenter 5 ?m into the insulating layer from a cross-section of the laminate in the laminating direction thereof, that ranges from 10 MPa to 300 MPa. In the sealant layer, an elastic modulus, when measured by using a nanoindenter and pressing an indenter 5 ?m into the sealant layer from a cross-section of the laminate in the laminating direction thereof, ranges from 100 MPa to 1000 MPa.Type: ApplicationFiled: January 28, 2019Publication date: May 23, 2019Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Tetsuya OJIRI, Tsuyoshi SUZUKI, Kazuhiko YOKOTA, Rikiya YAMASHITA, Masakazu KANDORI
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Publication number: 20190148682Abstract: A battery packaging material has a very thin aluminum alloy foil with a thickness of not more than 40 ?m, in which pinholes or cracks are unlikely to occur during molding, which has excellent moldability and appearance after molding, which is unlikely to be erroneously determined to be a defective product, and which makes highly accurate defect determination possible. The battery packaging material includes a stacked member provided with at least, in this order: a base material layer; an aluminum alloy foil layer; and a heat sealable resin layer, wherein: the aluminum alloy foil layer has a thickness of not more than 40 ?m; the aluminum alloy foil layer is an aluminum alloy conforming to JIS standard A8021; and the aluminum alloy has a maximum crystal grain size of not more than 25 ?m, and an average crystal grain size of not more than 10 ?m.Type: ApplicationFiled: April 14, 2017Publication date: May 16, 2019Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Tetsuya OJIRI, Hiroshi KISHIDA, Kenji KANDA
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Patent number: 10236479Abstract: A power-cell packaging material including a layered body obtained by layering at least a substrate layer, a metal layer, an insulating layer, and a sealant layer, in this order. The insulating layer has a hardness in the range of 10-300 MPa, when measured by using a nanoindenter and pressing the indenter 5 ?m into the insulating layer from a cross-section of the layered body in the layering direction thereof.Type: GrantFiled: February 17, 2014Date of Patent: March 19, 2019Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Tetsuya Ojiri, Tsuyoshi Suzuki, Kazuhiko Yokota, Rikiya Yamashita, Masakazu Kandori
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Publication number: 20180090724Abstract: Provided is a cell packaging material having a high insulating performance and durability. A cell packaging material comprising a layered body provided with at least a substrate layer, a metal layer, an adhesive layer, and a heat-fusible resin layer in the stated order. The adhesive layer has a resin composition that contains an acid-modified polyolefin and an epoxy resin. In probe displacement amount measurements involving the use of a thermal mechanical analyzer, when a probe is placed on the surface of the adhesive layer at an end part of the cell packaging material and the probe is heated from 40° C. to 220° C., the position of the probe does not drop in relation to the initial value.Type: ApplicationFiled: March 30, 2016Publication date: March 29, 2018Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Kaoru MIYAZAKI, Hirotoshi SAKAMOTO, Yousuke HAYAKAWA, Rikiya YAMASHITA, Takanori YAMASHITA, Tsuyoshi SUZUKI, Yoichi MOCHIZUKI, Kazuhiko YOKOTA, Tetsuya OJIRI
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Publication number: 20170279090Abstract: A battery packaging material has an excellent ink printing characteristic on a base-layer-side surface. This battery packaging material has a laminated body formed by sequentially stacking at least a base layer, a metal layer, and a sealant layer, with the wet tensile strength of the surface of the base layer being 32 mN/m or greater.Type: ApplicationFiled: September 3, 2015Publication date: September 28, 2017Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Makoto AMANO, Rikiya YAMASHITA, Tetsuya OJIRI, Shunsuke UEDA
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Publication number: 20150380692Abstract: A power-cell packaging material including a layered body obtained by layering at least a substrate layer, a metal layer, an insulating layer, and a sealant layer, in this order. The insulating layer has a hardness in the range of 10-300 MPa, when measured by using a nanoindenter and pressing the indenter 5 ?m into the insulating layer from a cross-section of the layered body in the layering direction thereof.Type: ApplicationFiled: February 17, 2014Publication date: December 31, 2015Inventors: Tetsuya OJIRI, Tsuyoshi SUZUKI, Kazuhiko YOKOTA, Rikiya YAMASHITA, Masakazu KANDORI
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Publication number: 20150372263Abstract: Presented is battery packaging material which is made of a laminate including, as the essentials, a base material layer, a metal layer and a sealant layer in this order. When a product obtained by packaging a battery element with the packaging material in a hermetically sealed state through heat sealing is heated, the packaging material delaminates at least at a part of the interface between the metal layer and the outside surface of the sealant layer with the hermetically sealed state being kept, and thereafter works so as to make the product unsealed.Type: ApplicationFiled: February 5, 2014Publication date: December 24, 2015Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Hiroki DOUKE, Yoshihiro SHINOHARA, Tsuyoshi SUZUKI, Rikiya YAMASHITA, Kazuhiko YOKOTA, Masakazu KANDORI, Yaichiro HORI, Tetsuya OJIRI
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Publication number: 20150255761Abstract: In a packaging material for a battery constituted by a laminate body having at least a base material layer, a bonding layer, a metal layer and a sealant layer in this order, the bonding layer satisfies at least two of the following properties (1) to (3). (1) The hardness is 20 to 115 MPa when an indenter is pressed into the bonding layer by 5 ?m from the cross-section of the laminate body using a nano-indenter. (2) The peak temperature is 10 to 60° C. for the loss modulus peak that is acquired when a dynamic viscoelasticity is measured at a frequency of 1 Hz for the bonding layer. (3) IH/IM is 0.15 to 1.5, where an integral value of peak areas existing in 2800 to 3000 cm?1 is defined as IM, and an integral value of peak areas existing in 3100 to 3500 cm?1 is defined as IH.Type: ApplicationFiled: September 10, 2013Publication date: September 10, 2015Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Yohei Hashimoto, Rikiya Yamashita, Kazuhiko Yokota, Tetsuya Ojiri
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Patent number: 7485814Abstract: An electromagnetic wave shielding filter 10 includes a meshed layer, wherein at least one of the front and back surfaces of the meshed layer is subjected to a blackening treatment to be a blackened face having micro-irregularities. The shape of the micro-irregularities is adjusted to have a probability density curve with a peak point being convex upward wherein the probability density curve is defined as a curve depicted in a graph in which the change of height from the peak value Rp to the bottom value Rv of the deepest valley is shown as the horizontal axis while the probability density expressing the distribution of height is shown as the vertical axis. Also, in the probability density curve, a horizontal tangent can be drawn at its peak point.Type: GrantFiled: February 24, 2006Date of Patent: February 3, 2009Assignee: Dai Nippon Printing Co., Ltd.Inventors: Tetsuya Ojiri, Fumihiro Arakawa, Yukihiro Kyoden
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Publication number: 20070291463Abstract: An electromagnetic wave shielding filter 10 comprises a meshed layer, wherein at least one of the front and back surfaces of the meshed layer is subjected to a blackening treatment to be a blackened face having micro-irregularities. The shape of the micro-irregularities is adjusted to have a probability density curve with a peak point being convex upward wherein the probability density curve is defined as a curve depicted in a graph in which the change of height from the peak value Rp to the bottom value Rv of the deepest valley is shown as the horizontal axis while the probability density expressing the distribution of height is shown as the vertical axis. Also, in the probability density curve, a horizontal tangent can be drawn at its peak point.Type: ApplicationFiled: February 24, 2006Publication date: December 20, 2007Applicant: DAI NIPPON PRINTING CO., LTD.Inventors: Tetsuya Ojiri, Fumihiro Arakawa, Yukihiro Kyoden