Patents by Inventor Shinpei OKUYAMA
Shinpei OKUYAMA 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: 11945195Abstract: A water barrier laminate including inorganic barrier and water-trapping layers alternately arranged in order from the side facing the device to the outer side: a first inorganic barrier layer, a first water-trapping layer, a second inorganic barrier layer, a second water-trapping layer and a third inorganic barrier layer. A water-permeable underlying plastic layer is provided on one side of these inorganic barrier layers; a distance L1a between the first water-trapping layer and the first inorganic barrier layer and a distance L2a between the second water-trapping layer and the second barrier satisfy formulas (1) and (2): L1a<3 ?m??(1) L2a<3 ?m??(2) and a distance L1b between the second inorganic barrier layer and the first water-trapping layer satisfies formula (3): L1b?3 ?m??(3) by interposing a water-permeable organic layer therebetween.Type: GrantFiled: February 25, 2020Date of Patent: April 2, 2024Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Shunya Nangou, Shinpei Okuyama, Misato Kawanishi, Keisuke Takayama
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Publication number: 20230227618Abstract: A moisture barrier laminated film (10) includes: a plastic film (A) having an inorganic barrier layer (A1); a moisture trapping layer (B) containing an alkali component; and a coating layer (C) provided between the inorganic barrier layer (A1) and the moisture trapping layer (B). In the coating layer (C), a moisture permeability at 40° C. and 90%RH is 6.0 × 104 g/m2/day or less, and a storage modulus E? (at 2? rad/s) in viscoelasticity measurement at 85° C. is 30 MPa or more.Type: ApplicationFiled: March 26, 2021Publication date: July 20, 2023Applicant: Toyo Seikan Group Holdings, Ltd.Inventors: Shinpei OKUYAMA, Keisuke TAKAYAMA, Shunya NANGOU, Kazumi OZAWA, Misato KAWANISHI
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Patent number: 11565508Abstract: An object of the present invention is to provide a moisture barrier laminate including a moisture trapping layer that maximizes its moisture trapping performance and exhibits an excellent moisture barrier property. The moisture barrier laminate of the present invention includes a gas barrier film substrate A having a gas barrier layer a1 and a moisture trapping layer B formed on the film substrate A as a base. On a surface of the moisture trapping layer B opposite to the film substrate A, a protective resin layer C having a moisture permeability in a range of 4.0×10 to 5.0×104 g/m2·day at 40° C. and 90% RH is laminated.Type: GrantFiled: March 29, 2019Date of Patent: January 31, 2023Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Misato Kawanishi, Shunya Nangou, Shinpei Okuyama, Keisuke Takayama, Yoshihiro Ohta
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Publication number: 20220126549Abstract: A water barrier laminate including inorganic barrier and water-trapping layers alternately arranged in order from the side facing the device to the outer side: a first inorganic barrier layer, a first water-trapping layer, a second inorganic barrier layer, a second water-trapping layer and a third inorganic barrier layer. A water-permeable underlying plastic layer is provided on one side of these inorganic barrier layers; a distance L1a between the first water-trapping layer and the first inorganic barrier layer and a distance L2a between the second water-trapping layer and the second barrier satisfy formulas (1) and (2): L1a<3 ?m??(1) L2a<3 ?m??(2) and a distance L1b between the second inorganic barrier layer and the first water-trapping layer satisfies formula (3): L1b?3 ?m??(3) by interposing a water-permeable organic layer therebetween.Type: ApplicationFiled: February 25, 2020Publication date: April 28, 2022Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Shunya NANGOU, Shinpei OKUYAMA, Misato KAWANISHI, Keisuke TAKAYAMA
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Publication number: 20210122147Abstract: An object of the present invention is to provide a moisture barrier laminate including a moisture trapping layer that maximizes its moisture trapping performance and exhibits an excellent moisture barrier property. The moisture barrier laminate of the present invention includes a gas barrier film substrate A having a gas barrier layer a1 and a moisture trapping layer B formed on the film substrate A as a base. On a surface of the moisture trapping layer B opposite to the film substrate A, a protective resin layer C having a moisture permeability in a range of 4.0×10 to 5.0×104 g/m2·day at 40° C. and 90% RH is laminated.Type: ApplicationFiled: March 29, 2019Publication date: April 29, 2021Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Misato Kawanishi, Shunya NANGOU, Shinpei OKUYAMA, Keisuke TAKAYAMA, Yoshihiro OHTA
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Publication number: 20200317875Abstract: A water-barrier laminated film (10) including a plastic film (A) that has an inorganic barrier layer (A1) on the surface thereof and a water-trapping layer (B), characterized in that: between the plastic film (A) and the water-trapping layer (B), an isocyanate type coating (C) is provided that contains, as a film-forming component, an isocyanate type polymer obtained by reacting an isocyanate as the reaction component; and the water-trapping layer (B) is formed on the isocyanate type coating (C) that is formed as the underlying layer.Type: ApplicationFiled: November 7, 2018Publication date: October 8, 2020Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Shinpei OKUYAMA, Keisuke TAKAYAMA, Shunya NANGOU, Misato YAGISAWA, Yoshihiro OHTA
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Patent number: 10683432Abstract: A coating formed on a surface of a base material, the coating composition containing an ionic polymer (a), a hygroscopic agent (b) and a solvent, the hygroscopic agent (b) being a granular crosslinked product of a monovalent metal salt of a poly(meth)acrylic acid and being contained in an amount of 75 to 700 parts by mass per 100 parts by mass of the ionic polymer (a), and the coating having a haze of 5% or less and a maximum surface roughness Ra (JIS B-0601-1994) of 0.1 ?m or less.Type: GrantFiled: October 5, 2018Date of Patent: June 16, 2020Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Shinpei Okuyama, Shunya Nangou, Kota Mori, Naru Kawahara
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Patent number: 10556411Abstract: A water barrier laminate (11) including a plastic base material (1) that faces the atmosphere of a high water content, as well as a first inorganic barrier layer (3), a water-trapping layer (5) and a second inorganic barrier layer (7) formed in this order on the plastic base material (1) on the side that does not face the atmosphere of the high water content, wherein an auxiliary water-trapping layer (10) is formed on the second inorganic barrier layer (7) on the side opposite to the water-trapping layer (5) to trap the water from the side surface, the auxiliary water-trapping layer (10) being located on the surface that faces the atmosphere of a low water content or being located in a region at a distance of not more than 20 ?m from the surface that faces the atmosphere of the low water content.Type: GrantFiled: August 9, 2016Date of Patent: February 11, 2020Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Shunya Nangou, Shinpei Okuyama, Kota Mori, Naru Kawahara, Misato Yagisawa
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Patent number: 10538841Abstract: A water-barrier laminate having a water-trapping layer (1) in which a hygroscopic agent is dispersed, wherein a hygroscopic agent has such a hygroscopic property that the ratio (Ax/Ay) of a hygroscopic amount Ax at a relative humidity of 80% and a hygroscopic amount Ay at a relative humidity of 30% is not less than 3, and the water-trapping layer is positioned between the two inorganic barrier layers (3a) and (3b). The water-barrier laminate exhibits barrier property against the water over extended periods of time.Type: GrantFiled: July 29, 2015Date of Patent: January 21, 2020Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Naru Kawahara, Shunya Nangou, Kota Mori, Shinpei Okuyama
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Publication number: 20190358608Abstract: A water-absorbing laminated protection film (1) including a hygroscopic resin layer 3 in which a desiccant is dispersed and a surface protection resin layer (5) provided on one surface of the hygroscopic resin layer (3). The surface protection resin layer (5) has a coefficient of moisture permeability of not more than 40 g/m2·day at 40° C. 90% RH, and the other surface of the hygroscopic resin layer (3) is a hygroscopically working surface (7).Type: ApplicationFiled: November 9, 2017Publication date: November 28, 2019Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Shunya NANGOU, Misato YAGISAWA, Shinpei OKUYAMA, Keisuke TAKAYAMA
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Publication number: 20190040275Abstract: A coating formed on a surface of a base material, the coating composition containing an ionic polymer (a), a hygroscopic agent (b) and a solvent, the hygroscopic agent (b) being a granular crosslinked product of a monovalent metal salt of a poly(meth)acrylic acid and being contained in an amount of 75 to 700 parts by mass per 100 parts by mass of the ionic polymer (a), and the coating having a haze of 5% or less and a maximum surface roughness Ra (JIS B-0601-1994) of 0.1 ?m or less.Type: ApplicationFiled: October 5, 2018Publication date: February 7, 2019Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Shinpei Okuyama, Shunya Nangou, Kota Mori, Naru Kawahara
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Publication number: 20180236757Abstract: A water barrier laminate (11) including a plastic base material (1) that faces the atmosphere of a high water content, as well as a first inorganic barrier layer (3), a water-trapping layer (5) and a second inorganic barrier layer (7) formed in this order on the plastic base material (1) on the side that does not face the atmosphere of the high water content, wherein an auxiliary water-trapping layer (10) is formed on the second inorganic barrier layer (7) on the side opposite to the water-trapping layer (5) to trap the water from the side surface, the auxiliary water-trapping layer (10) being located on the surface that faces the atmosphere of a low water content or being located in a region at a distance of not more than 20 ?m from the surface that faces the atmosphere of the low water content.Type: ApplicationFiled: August 9, 2016Publication date: August 23, 2018Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Shunya NANGOU, Shinpei OKUYAMA, Kota MORI, Naru KAWAHARA, Misato YAGISAWA
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Patent number: 9956748Abstract: A gas-barrier laminate (10) of a structure in which a first inorganic barrier layer (3), a water-trapping layer (5) and a second inorganic barrier layer (9) are provided in this order on a plastic base material (1), wherein the water-trapping layer (5) is a layer in which a granular moisture-absorbing agent is dispersed in a matrix of an ionic polymer, the granular moisture-absorbing agent being capable of absorbing moisture to a degree lower than that attained by the matrix, and an organic layer (7) is provided between the water-trapping layer (5) and the second inorganic barrier layer (9), the organic layer (7) serving as an underlying layer for forming the second inorganic barrier layer. The water-trapping layer has excellent barrier property against water and is, at the same time, effectively suppressed from swelling despite it has absorbed moisture. The water-trapping layer is, further, effectively suppressed from losing its activity.Type: GrantFiled: October 8, 2014Date of Patent: May 1, 2018Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Shinpei Okuyama, Yusuke Obu, Shunya Nangou, Naru Kawahara
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Patent number: 9889426Abstract: Hygroscopic particles including a crosslinked polymer containing 6.0 to 12.0 meq/g of carboxyl groups and 0.1 to 2.0 meq/g of sulfonic acid groups and/or sulfonate groups, 80% or more of the carboxyl groups being neutralized to a potassium salt.Type: GrantFiled: May 18, 2015Date of Patent: February 13, 2018Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Shinpei Okuyama, Yusuke Obu, Shunya Nangou, Naru Kawahara
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Publication number: 20170226625Abstract: A water-barrier laminate having a water-trapping layer (1) in which a hygroscopic agent is dispersed, wherein a hygroscopic agent has such a hygroscopic property that the ratio (Ax/Ay) of a hygroscopic amount Ax at a relative humidity of 80% and a hygroscopic amount Ay at a relative humidity of 30% is not less than 3, and the water-trapping layer is positioned between the two inorganic barrier layers (3a) and (3b). The water-barrier laminate exhibits barrier property against the water over extended periods of time.Type: ApplicationFiled: July 29, 2015Publication date: August 10, 2017Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Naru KAWAHARA, Shunya NANGOU, Kota MORI, Shinpei OKUYAMA
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Publication number: 20170210932Abstract: A coating composition including an ionic polymer (a), a hygroscopic agent (b) and a solvent, the hygroscopic agent (b) being a granular crosslinked product of a monovalent metal salt of a poly(meth)acrylic acid and being contained in an amount of 75 to 700 parts by mass per 100 parts by mass of the ionic polymer (a).Type: ApplicationFiled: July 29, 2015Publication date: July 27, 2017Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Shinpei OKUYAMA, Shunya NANGOU, Kota MORI, Naru KAWAHARA
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Publication number: 20170120217Abstract: Hygroscopic particles including a crosslinked polymer containing 6.0 to 12.0 meq/g of carboxyl groups and 0.1 to 2.0 meq/g of sulfonic acid groups and/or sulfonate groups, 80% or more of the carboxyl groups being neutralized to a potassium salt.Type: ApplicationFiled: May 18, 2015Publication date: May 4, 2017Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Shinpei OKUYAMA, Yusuke OBU, Shunya NANGOU, Naru KAWAHARA
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Publication number: 20170067151Abstract: A gas barrier laminate (10) having a very thin metal oxide film (ALD film) (5) formed on an inorganic oxide layer (3) by an atomic layer deposition method, the inorganic oxide layer (3) including a metal oxide or a metal oxynitride that contains at least either Si or Al, and a ratio (d1/d2) of a thickness (d1) of the inorganic oxide layer (3) and a thickness (d2) of the ALD film (5) being 3 to 50. The gas barrier laminate features not only a high degree of gas-barrier property but also excellent productivity.Type: ApplicationFiled: March 2, 2015Publication date: March 9, 2017Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Shunya NANGOU, Yusuke OBU, Shinpei OKUYAMA, Naru KAWAHARA
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Publication number: 20160243801Abstract: A gas-barrier laminate (10) of a structure in which a first inorganic barrier layer (3), a water-trapping layer (5) and a second inorganic barrier layer (9) are provided in this order on a plastic base material (1), wherein the water-trapping layer (5) is a layer in which a granular moisture-absorbing agent is dispersed in a matrix of an ionic polymer, the granular moisture-absorbing agent being capable of absorbing moisture to a degree lower than that attained by the matrix, and an organic layer (7) is provided between the water-trapping layer (5) and the second inorganic barrier layer (9), the organic layer (7) serving as an underlying layer for forming the second inorganic barrier layer. The water-trapping layer has excellent barrier property against water and is, at the same time, effectively suppressed from swelling despite it has absorbed moisture. The water-trapping layer is, further, effectively suppressed from losing its activity.Type: ApplicationFiled: October 8, 2014Publication date: August 25, 2016Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Shinpei OKUYAMA, Yusuke OBU, Shunya NANGOU, Naru KAWAHARA