Patents by Inventor Yusuke Obu
Yusuke Obu 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: 11479018Abstract: A barrier film for electronic devices exhibiting and maintaining excellent water barrier property. The barrier film for electronic devices features a water permeability (23° C., RH50%) that is set to be not more than 10?4 g/m2/day and a water content that is maintained to be not more than 2000 ppm.Type: GrantFiled: April 1, 2019Date of Patent: October 25, 2022Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Chiho Sugiura, Yusuke Obu, Kenji Hayashi, Yutaka Kawakubo
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Publication number: 20210028400Abstract: A sealing member used for absorbing the water in the interior of the organic electronic devices and for holding the interior of the devices in a dry state. The sealing member includes a laminate of a barrier sheet (5) provided with a metal foil (5a) and a moisture absorbing film (3).Type: ApplicationFiled: April 1, 2019Publication date: January 28, 2021Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Chiho SUGIURA, Yusuke OBU, Kenji HAYASHI, Yutaka KAWAKUBO
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Publication number: 20210023817Abstract: A barrier film for electronic devices exhibiting and maintaining excellent water barrier property. The barrier film for electronic devices features a water permeability (23° C., RH50%) that is set to be not more than 10?4 g/m2/day and a water content that is maintained to be not more than 2000 ppm.Type: ApplicationFiled: April 1, 2019Publication date: January 28, 2021Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Chiho SUGIURA, Yusuke OBU, Kenji HAYASHI, Yutaka KAWAKUBO
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Publication number: 20210016986Abstract: A package comprising a laminate of a two-layer structure including a barrier film 1 that is used for electronic devices and has a water permeability (23° C., RH 50%) that is set to be not more than 10?4 g/m2/day and a desiccant sheet 3 that is so provided as to cover the one surface of the barrier film 1, characterized in that the barrier film 1 is held being wound up like a roll.Type: ApplicationFiled: April 1, 2019Publication date: January 21, 2021Applicant: Toyo Seikan Group Holdings, Ltd.Inventors: Chiho SUGIURA, Yusuke OBU, Kenji HAYASHI, Yutaka KAWAKUBO
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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: 20170307128Abstract: A vacuum heat insulating material including a core material and a sheath for covering the core material, the interior thereof being sealed to maintain a reduced pressure therein, wherein the sheath includes a gas-barrier laminate that has at least a heat-melt-adhesion layer, a vapor-deposited layer and a gas-barrier material, and the gas-barrier material has a gas-barrier layer that includes a polycarboxylic acid type polymer and contains a monovalent metal element in an amount of not more than 1.4% by weight, a polyvalent metal element in an amount of at least not less than 5.0% by weight, and a nitrogen element in an amount of 0.01 to 3.0% by weight per the total weight of nitrogen and carbon. The vacuum heat insulating material has excellent heat insulating capability and gas-barrier property, and sustains excellent heat insulating capability over extended periods of time as well as excellent flexibility and waterproof property.Type: ApplicationFiled: October 3, 2014Publication date: October 26, 2017Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Kousuke UEDA, Yusuke OBU, Kashiko KAWAI, Shunya NANGOU
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Patent number: 9676171Abstract: A gas barrier laminate 10 having an inorganic barrier layer 3 and a water-trapping layer 5 that are formed on a plastic base material 1, the water-trapping layer 5 including a matrix of a cationic polymer (a) in which is distributed a hygroscopic agent (b) having such a hygroscopic property as to attain a humidity lower than a humidity that can be attained by using the matrix. The gas barrier laminate exhibits super barrier property against water despite of a structure of a small number of layers.Type: GrantFiled: February 6, 2014Date of Patent: June 13, 2017Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Shimpei Okuyama, Yusuke Obu, Shunya Nangou, Kota Mori
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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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Patent number: 9605128Abstract: A gas barrier material comprising a polycarboxylic acid polymer, and containing 0.10 to 1.4% by weight of a monovalent metal element, at least not less than 5.0% by weight of a polyvalent metal element, and 0.01 to 3.0% by weight of a nitrogen element per the total weight of nitrogen and carbon. The gas barrier material exhibits excellent gas barrier property, excellent waterproof property after the bend working and excellent appearance on the surface of the coating.Type: GrantFiled: March 14, 2013Date of Patent: March 28, 2017Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Shunya Nangou, Yusuke Obu, Kashiko Kawai, Tomohiro Miyai, Nan Zhang
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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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Patent number: 9528006Abstract: To provide a coating composition for undercoating which, in forming a gas-barrier layer having a crosslinked structure between a polycarboxylic acid type polymer and polyvalent metal ions by the heating at a low temperature for a short period of time, permits polyvalent metal ions to be easily and quickly fed into the polycarboxylic acid type polymer and, besides, into the whole gas-barrier layer. A coating composition containing, as chief components, a nonaqueous polyester polyol, an isocyanate compound, and an alkaline compound of a polyvalent metal that serves as an ion source for forming the crosslinked structure, wherein the nonaqueous polyester polyol contains a nonaqueous polyester polyol which contains a metal element in the resin skeleton thereof as an essential component, and the alkaline compound of the polyvalent metal has an average primary particle size in a range of 0.005 to 0.5 ?m.Type: GrantFiled: December 24, 2010Date of Patent: December 27, 2016Assignees: TOYO SEIKAN KAISYA, LTD., KANSAI PAINT CO., LTD.Inventors: Yusuke Obu, Kashiko Kawai, Tomohiro Miyai, Shunya Nangou, Takahiro Hidaka, Hideki Masuda
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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
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Patent number: 9266309Abstract: A method of producing a gas-barrier laminated member having a gas-barrier layer formed by crosslinking the carboxyl groups of a polycarboxylic acid polymer with multivalent metal ions. The method comprises forming a layer (A) containing an alkaline compound of a multivalent metal on at least one surface of a plastic base material, applying a solution (b) obtained by dissolving a polycarboxylic acid polymer in a solvent containing at least water onto the layer (A) that contains the alkaline compound of the multivalent metal, and removing the solvent by a heat treatment so that a metal-ionically crosslinked structure is formed with the multivalent metal ions among the carboxyl groups in the solution (b). The gas-barrier laminated member has excellent adhesion to the base material, gas-barrier property, retort resistance and flexibility, and is efficiently produced by only being heated at a low temperature for a short period of time through a decreased number of simplified steps.Type: GrantFiled: June 26, 2009Date of Patent: February 23, 2016Assignees: TOYO SEIKAN KAISHA, LTD., KANSAI PAINT CO., LTD.Inventors: Yusuke Obu, Kashiko Kawai, Tomohiro Miyai, Takahiro Hidaka, Hideki Masuda
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Publication number: 20150368498Abstract: A gas barrier laminate 10 having an inorganic barrier layer 3 and a water-trapping layer 5 that are formed on a plastic base material 1, the water-trapping layer 5 including a matrix of a cationic polymer (a) in which is distributed a hygroscopic agent (b) having such a hygroscopic property as to attain a humidity lower than a humidity that can be attained by using the matrix. The gas barrier laminate exhibits super barrier property against water despite of a structure of a small number of layers.Type: ApplicationFiled: February 6, 2014Publication date: December 24, 2015Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Shimpei OKUYAMA, Yusuke OBU, Shunya NANGOU, Kota MORI
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Patent number: 9132613Abstract: A gas barrier laminate having an undercoating (A) which comprises a main resin, an isocyanate type curing agent and an alkaline compound of a polyvalent metal; and a barrier layer (B) of a polycarboxylic acid polymer forming an ionic crosslinking due to the polyvalent metal among the carboxyl groups; formed on at least one surface of a plastic base material (P), wherein a region (b) free of the alkaline compound of the polyvalent metal is formed in the undercoating (A) on the side of the barrier layer (B), the content of nitrogen in the region (b) being larger than the content of nitrogen in the undercoating (A) other than the region (b), the gas barrier laminate having excellent gas barrier property, retort resistance, producibility as well as excellent flexibility without developing interlayer peeling even if it is folded and featuring excellent interlayer adhesion.Type: GrantFiled: December 19, 2011Date of Patent: September 15, 2015Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Kashiko Kawai, Yusuke Obu, Tomohiro Miyai, Shunya Nangou, Nan Zhang
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Publication number: 20150079405Abstract: A gas barrier material comprising a polycarboxylic acid polymer, and containing 0.10 to 1.4% by weight of a monovalent metal element, at least not less than 5.0% by weight of a polyvalent metal element, and 0.01 to 3.0% by weight of a nitrogen element per the total weight of nitrogen and carbon. The gas barrier material exhibits excellent gas barrier property, excellent waterproof property after the bend working and excellent appearance on the surface of the coating.Type: ApplicationFiled: March 14, 2013Publication date: March 19, 2015Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Shunya Nangou, Yusuke Obu, Kashiko Kawai, Tomohiro Miyai, Nan Zhang
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Patent number: 8722193Abstract: To provide a gas barrier laminate having a gas barrier layer obtained by crosslinking the carboxyl groups of a polycarboxylic acid-type polymer with polyvalent metal ions maintaining good productivity, the crosslinking being accelerated with polyvalent metal ions to exhibit more excellent gas barrier property. A gas barrier laminate comprising a layer (A) of a non-aqueous resin containing a metal element in the polymer skeleton thereof, and a layer (B) of a polycarboxylic acid-type polymer in which an ionic crosslinking is formed with a polyvalent metal among the carboxyl groups.Type: GrantFiled: September 30, 2010Date of Patent: May 13, 2014Assignee: Toyo Seikan Kaisha, Ltd.Inventors: Tomohiro Miyai, Yusuke Obu, Kashiko Kawai, Shunya Nangou
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Publication number: 20130273374Abstract: A gas barrier laminate having an undercoating (A) which comprises a main resin, an isocyanate type curing agent and an alkaline compound of a polyvalent metal; and a barrier layer (B) of a polycarboxylic acid polymer forming an ionic crosslinking due to the polyvalent metal among the carboxyl groups; formed on at least one surface of a plastic base material (P), wherein a region (b) free of the alkaline compound of the polyvalent metal is formed in the undercoating (A) on the side of the barrier layer (B), the content of nitrogen in the region (b) being larger than the content of nitrogen in the undercoating (A) other than the region (b), the gas barrier laminate having excellent gas barrier property, retort resistance, producibility as well as excellent flexibility without developing interlayer peeling even if it is folded and featuring excellent interlayer adhesion.Type: ApplicationFiled: December 19, 2011Publication date: October 17, 2013Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.Inventors: Kashiko Kawai, Yusuke Obu, Tomohiro Miyai, Shunya Nangou, Nan Zhang
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Publication number: 20120238696Abstract: To provide a coating composition for undercoating which, in forming a gas-barrier layer having a crosslinked structure between a polycarboxylic acid type polymer and polyvalent metal ions by the heating at a low temperature for a short period of time, permits polyvalent metal ions to be easily and quickly fed into the polycarboxylic acid type polymer and, besides, into the whole gas-barrier layer. A coating composition containing, as chief components, a nonaqueous polyester polyol, an isocyanate compound, and an alkaline compound of a polyvalent metal that serves as an ion source for forming the crosslinked structure, wherein the nonaqueous polyester polyol contains a nonaqueous polyester polyol which contains a metal element in the resin skeleton thereof as an essential component, and the alkaline compound of the polyvalent metal has an average primary particle size in a range of 0.005 to 0.5 ?m.Type: ApplicationFiled: December 24, 2010Publication date: September 20, 2012Applicants: KANSAI PAINT CO., LTD., TOYO SEIKAN KAISHA, LTD.Inventors: Yusuke Obu, Kashiko Kawai, Tomohiro Miyai, Shunya Nangou, Takahiro Hidaka, Hideki Masuda