Patents by Inventor Masatsugu KOSO
Masatsugu KOSO 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: 11964439Abstract: A reinforcement structure includes an adherend, such as a metal plate, and a reinforcement sheet adhering thereto. The reinforcement sheet includes a front layer containing a plurality of fibers, a core material layer, and an adhesive layer. The reinforcement structure is capable of intensively reinforcing a first corner portion of the adherend and obtaining an improvement in strength.Type: GrantFiled: October 31, 2018Date of Patent: April 23, 2024Assignee: NITTO DENKO CORPORATIONInventors: Kazuhiro Fuke, Masatsugu Koso
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Patent number: 11654655Abstract: A reinforcement sheet for reinforcing a metal plate by adhering to the metal plate includes a core material layer containing a resin and a front layer disposed at one side in a thickness direction of the core material layer. The front layer is obtained by laminating a plurality of unidirectional liber resin composite sheets, and an area ratio of a void in a cross section of a solidified material of the core material layer is 50% or less.Type: GrantFiled: September 28, 2018Date of Patent: May 23, 2023Assignee: NITTO DENKO CORPORATIONInventors: Kazuhiro Fuke, Masatsugu Koso
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Patent number: 11654656Abstract: A reinforcement sheet for reinforcing a metal plate by adhering to the metal plate includes a core material layer containing a resin and a filler, and a front layer disposed at one side in a thickness direction of the core material layer. A content ratio of the filler in the core material layer is 15 mass % or more and below 85 mass %, and the front layer is obtained by laminating a plurality of unidirectional fiber resin composite sheets.Type: GrantFiled: September 28, 2018Date of Patent: May 23, 2023Assignee: NITTO DENKO CORPORATIONInventors: Kazuhiro Fuke, Masatsugu Koso
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Patent number: 11476586Abstract: A radio wave absorbing member 1a includes a radio wave absorber 10 and a support 20 having a sheet shape. The radio wave absorber 10 includes a resistive layer 12, a reflective layer 14, and a dielectric layer 13. The reflective layer 14 reflects a radio wave. The dielectric layer 13 is disposed between the resistive layer 12 and the reflective layer 14 in the thickness direction of the reflective layer 14. The support 20 supports the radio wave absorber 10. The support 20 includes a matrix resin 20m and a flame retardant 20p.Type: GrantFiled: June 5, 2020Date of Patent: October 18, 2022Assignee: NITTO DENKO CORPORATIONInventors: Takehiro Ui, Masatsugu Koso, Kazuhiro Fuke, Yuya Matsuzaki, Masataka Usui
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Publication number: 20220159884Abstract: A radio wave absorber includes a first radio wave absorbing portion and a second radio wave absorbing portion. The first radio wave absorbing portion has the largest amount of reflection and absorption, as measured according to JIS R 1679: 2007, of a radio wave with a given frequency f at a first incident angle ?1 in an incident angle range of 0° to 80°. The second radio wave absorbing portion has the largest amount of reflection and absorption of the radio wave at a second incident angle ?2 in an incident angle range of 0° to 80°. Magnitude of the second incident angle ?2 is different from magnitude of the first incident angle ?1, or a polarized wave type of the radio wave incident at the second incident angle ?2 is different from a polarized wave type of the radio wave incident at the first incident angle ?1.Type: ApplicationFiled: March 6, 2020Publication date: May 19, 2022Applicant: NITTO DENKO CORPORATIONInventors: Kazuhiro Fuke, Masatsugu Koso, Yuya Matsuzaki
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Publication number: 20210249780Abstract: A radio wave absorbing member 1a includes a radio wave absorber 10 and a support 20 having a sheet shape. The radio wave absorber 10 includes a resistive layer 12, a reflective layer 14, and a dielectric layer 13. The reflective layer 14 reflects a radio wave. The dielectric layer 13 is disposed between the resistive layer 12 and the reflective layer 14 in the thickness direction of the reflective layer 14. The support 20 supports the radio wave absorber 10. The support 20 includes a matrix resin 20m and a flame retardant 20p.Type: ApplicationFiled: June 5, 2020Publication date: August 12, 2021Applicant: NITTO DENKO CORPORATIONInventors: Takehiro Ui, Masatsugu Koso, Kazuhiro Fuke, Yuya Matsuzaki, Masataka Usui
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Publication number: 20200298501Abstract: A reinforcement structure includes an adherend, such as a metal plate, and a reinforcement sheet adhering thereto. The reinforcement sheet includes a front layer containing a plurality of fibers, a core material layer, and an adhesive layer. The reinforcement structure is capable of intensively reinforcing a first corner portion of the adherend and obtaining an improvement in strength.Type: ApplicationFiled: October 31, 2018Publication date: September 24, 2020Applicant: NITTO DENKO CORPORATIONInventors: Kazuhiro FUKE, Masatsugu KOSO
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Publication number: 20200282704Abstract: A reinforcement sheet for reinforcing a metal plate by adhering to the metal plate includes a core material layer containing a resin and a front layer disposed at one side in a thickness direction of the core material layer. The front layer is obtained by laminating a plurality of unidirectional liber resin composite sheets, and an area ratio of a void in a cross section of a solidified material of the core material layer is 50% or less.Type: ApplicationFiled: September 28, 2018Publication date: September 10, 2020Applicant: NITTO DENKO CORPORATIONInventors: Kazuhiro FUKE, Masatsugu KOSO
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Publication number: 20200282703Abstract: A reinforcement sheet for reinforcing a metal plate by adhering to the metal plate includes a core material layer containing a resin and a filler, and a front layer disposed at one side in a thickness direction of the core material layer. A content ratio of the filler in the core material layer is 15 mass % or more and below 85 mass %, and the front layer is obtained by laminating a plurality of unidirectional fiber resin composite sheets.Type: ApplicationFiled: September 28, 2018Publication date: September 10, 2020Applicant: NITTO DENKO CORPORATIONInventors: Kazuhiro FUKE, Masatsugu KOSO
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Publication number: 20170096563Abstract: Provided is a primer composition that can cause a fiber-reinforced plastic (FRP) and an adhesive to sufficiently conform to each other to express a sufficient adhesive strength. The present invention also provides a composite article containing a fiber-reinforced plastic (FRP) subjected to a primer treatment with such primer composition. The primer composition of the present invention includes: an aromatic compound having a hydroxyl group; and an epoxy. The composite article of the present invention includes a fiber-reinforced plastic, and at least part of a surface of the fiber-reinforced plastic is subjected to a primer treatment with the primer composition of the present invention.Type: ApplicationFiled: July 17, 2015Publication date: April 6, 2017Applicant: NITTO DENKO CORPORATIONInventors: Masatsugu KOSO, Takahiro FUJII
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Publication number: 20160340562Abstract: Provided are: an adhesive resin composition that can be used as an adhesive that conforms well to a fiber-reinforced thermoplastic (FRTP) and can express a sufficient adhesive strength to any other adherend; an adhesive tape formed by curing such composition; an adhesive tape with a base material having a base material layer and a layer formed by curing such composition; and a composite article containing any one of the composition and tapes, and a FRTP. The composition includes: a polyamide-based resin; and an epoxy-based resin. The content of the polyamide-based resin is 15 parts by weight or more and less than 100 parts by weight with respect to 100 parts by weight of the epoxy-based resin. The shearing adhesive strength of an adhesive tape formed by curing the composition to a FRTP is from 2.5 MPa to 70.0 MPa at 25° C. and from 2.2 MPa to 70.0 MPa at 80° C.Type: ApplicationFiled: February 6, 2015Publication date: November 24, 2016Applicant: NITTO DENKO CORPORATIONInventors: Takahiro FUJII, Masatsugu KOSO
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Publication number: 20160222255Abstract: Provided is a PSA sheet for mobile electronic devices that has excellent drop impact resistance while being capable of exhibiting great holding power. This invention provides an adhesively double-faced PSA sheet used for fastening a component of a mobile electronic device. The PSA sheet comprises a PSA layer formed from a water-dispersed PSA composition. The water-dispersed PSA composition comprises a PSA polymer as its base polymer and a crosslinking agent. The PSA polymer has a glass transition temperature of ?60° C. or lower.Type: ApplicationFiled: September 1, 2014Publication date: August 4, 2016Applicant: NITTO DENKO CORPORATIONInventor: Masatsugu KOSO
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Publication number: 20160215180Abstract: Provided is a water-dispersed pressure-sensitive adhesive composition capable of forming a pressure-sensitive adhesive that combines removability and repulsion resistance at a high level. This invention provides a water-dispersed pressure-sensitive adhesive composition comprising a pressure-sensitive adhesive polymer as its base polymer and an isocyanate-based crosslinking agent. The pressure-sensitive adhesive polymer has a weight ratio GA of ethyl acetate-insoluble portion of 10% to 50%. The isocyanate-based crosslinking agent is contained so as to yield a weight ratio GB of 15% to 45% with respect to the ethyl acetate-insoluble portion of a crosslinked pressure-sensitive adhesive formed from the pressure-sensitive adhesive composition.Type: ApplicationFiled: September 1, 2014Publication date: July 28, 2016Applicant: NITTO DENKO CORPORATIONInventor: Masatsugu KOSO
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Publication number: 20140066557Abstract: A pressure-sensitive adhesive composition is prepared in a non-aqueous state from an acrylic polymer having an active hydrogen-containing group and a metal sulfate having a substituted group.Type: ApplicationFiled: February 26, 2013Publication date: March 6, 2014Applicant: NITTO DENKO CORPORATIONInventor: Masatsugu Koso
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Publication number: 20130273361Abstract: Provided is an active energy ray-curable pressure-sensitive adhesive for re-release, which has a small influence on an environment or a human body, can be easily handled, can largely change its pressure-sensitive adhesiveness before and after irradiation with an active energy ray, and can express high pressure-sensitive adhesiveness before the irradiation with the active energy ray and express high releasability after the irradiation with the active energy ray. The active energy ray-curable pressure-sensitive adhesive for re-release includes an active energy ray-curable polymer (P), in which the polymer (P) includes one of a polymer obtained by causing a carboxyl group-containing polymer (P3) and an oxazoline group-containing monomer (m3) to react with each other, and a polymer obtained by causing an oxazoline group-containing polymer (P4) and a carboxyl group-containing monomer (m2) to react with each other.Type: ApplicationFiled: June 11, 2013Publication date: October 17, 2013Inventors: Katsuhiko KAMIYA, Tomokazu Takahashi, Chie Kitano, Mika Okada, Takeshi Matsumura, Shuhei Murata, Hironao Otake, Masatsugu Koso
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Publication number: 20130059960Abstract: The present invention relates to a pressure-sensitive adhesive composition containing: an aqueous solvent, an acrylic polymer dispersed in the aqueous solvent, a polyisocyanate crosslinking agent, and a tertiary amine as a neutralizing agent, in which the composition has a liquid phase with a pH of less than 10.Type: ApplicationFiled: September 6, 2012Publication date: March 7, 2013Applicant: NITTO DENKO CORPORATIONInventors: Masatsugu KOSO, Kousuke YONEZAKI
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Publication number: 20120277368Abstract: The present invention relates to an aqueous dispersion pressure-sensitive adhesive composition containing: an acrylic emulsion polymer (A); and a compound (B) in which the compound (B) has a solubility in water (25° C.) of 1 g/100 g or more, and has, in the molecule, at least one nitrogen atom and two or more substituents represented by the following formula (1) and bonded to the nitrogen atom: (wherein R represents a divalent group selected from the group consisting of linear or branched alkylene having a carbon number of 1 to 10, phenylene, alkyl group-substituted phenylene, halogen-substituted phenylene, and heteroatom-containing alkylene).Type: ApplicationFiled: April 27, 2012Publication date: November 1, 2012Applicant: NITTO DENKO CORPORATIONInventors: Masatsugu KOSO, Katsuhiko KAMIYA, Hironao OOTAKE
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Publication number: 20120003470Abstract: Provided is an active energy ray-curable pressure-sensitive adhesive for re-release, which has a small influence on an environment or a human body, can be easily handled, can largely change its pressure-sensitive adhesiveness before and after irradiation with an active energy ray, and can express high pressure-sensitive adhesiveness before the irradiation with the active energy ray and express high releasability after the irradiation with the active energy ray. The active energy ray-curable pressure-sensitive adhesive for re-release includes an active energy ray-curable polymer (P), in which the polymer (P) includes one of a polymer obtained by causing a carboxyl group-containing polymer (P3) and an oxazoline group-containing monomer (m3) to react with each other, and a polymer obtained by causing an oxazoline group-containing polymer (P4) and a carboxyl group-containing monomer (m2) to react with each other.Type: ApplicationFiled: July 5, 2011Publication date: January 5, 2012Applicant: NITTO DENKO CORPORATIONInventors: Katsuhiko KAMIYA, Tomokazu TAKAHASHI, Chie KITANO, Mika OKADA, Takeshi MATSUMURA, Shuhei MURATA, Hironao OTAKE, Masatsugu KOSO