Patents by Inventor Takahiro Nonaka
Takahiro Nonaka 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: 9650547Abstract: Provided is a pressure-sensitive adhesive capable of realizing a pressure-sensitive adhesive layer having satisfactory adhesion performance and a high ink step absorbability. A radiation-curable pressure-sensitive adhesive, which contains a (meth)acryl-based polymer obtained by polymerizing a monomer component containing 30 to 90% by weight of an alkyl(meth)acrylate having an alkyl group of 10 to 22 carbon atoms at an ester end, and having a radically polymerizable functional group containing a carbon-carbon double bond.Type: GrantFiled: July 30, 2013Date of Patent: May 16, 2017Assignee: NITTO DENKO CORPORATIONInventors: Kiyoe Shigetomi, Shou Takarada, Masahiko Ando, Katsuhiko Kamiya, Takahiro Nonaka
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Patent number: 9617299Abstract: A method of purifying a fusion protein, including: (1) adjusting the pH of an aqueous phase, containing a fusion protein which is a fusion of a protein having a self-assembly capability and a tamet protein, and which aqueous phase has a first pH, to a second pH, to obtain a remaining aqueous phase and a solid fraction containing an amount of the fusion protein; (2) separating the solid fraction from the remaining aqueous phase, to obtain a separated solid fraction; and (3) dissolving the separated solid fraction in a solution having a pH of 12 or lower but higher than the second pH by at least 0.1 pH units, wherein the protein having a self-assembly capability is a cell surface protein.Type: GrantFiled: April 21, 2016Date of Patent: April 11, 2017Assignee: AJINOMOTO CO., INC.Inventors: Takahiro Nonaka, Teruhisa Mannen, Noriko Tsurui
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Publication number: 20160222055Abstract: The present invention provides a method for producing a target protein in the form of a fusion protein at a high recovery ratio. The present invention relates to a method for producing a fusion protein made of a protein having a self-assembly capability and a target protein comprising the following steps (1) to (4): (1) preparing a solution containing the fusion protein; (2) adjusting a pH of the solution obtained in step (1) to such a pH that a recovery ratio calculated according to the following equation is 10% or more, where the recovery ratio (%)=[an amount of the fusion protein in a solution obtained in step (4)/{the amount of the fusion protein in the solution obtained in step (4)+an amount of the fusion protein in a solution after solid separation in step (3)}]×100; (3) separating a solid from the solution obtained in step (2); and (4) dissolving the solid separated in step (3) into a solution having a pH of 12 or below but higher than the pH of the solution obtained in step (2) by 0.1 or more.Type: ApplicationFiled: April 21, 2016Publication date: August 4, 2016Applicant: AJINOMOTO CO., INC.Inventors: Takahiro NONAKA, Teruhisa MANNEN, Noriko TSURUI
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Publication number: 20160215181Abstract: An optical pressure-sensitive adhesive sheet for silver nanowire layer use includes a pressure-sensitive adhesive layer. The amount of acrylic acid ions extracted from the pressure-sensitive adhesive layer with pure water at 100° C. for 45 minutes is equal to or less than 5 ?g per gram of the pressure-sensitive adhesive layer, where the amount is measured by ion chromatography. The pressure-sensitive adhesive layer is preferably an acrylic pressure-sensitive adhesive layer.Type: ApplicationFiled: January 21, 2016Publication date: July 28, 2016Applicant: NITTO DENKO CORPORATIONInventors: Masato FUJITA, Takahiro NONAKA, Shoichi MATSUDA, Hiroshi TOMOHISA
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Publication number: 20160115357Abstract: A pressure-sensitive adhesive sheet comprises a support and a transparent pressure-sensitive adhesive layer on the support. The pressure-sensitive adhesive layer comprises a base adhesive zone made essentially of a transparent base pressure-sensitive adhesive material and formed over a given range from a first principal surface of the pressure-sensitive adhesive layer in a thickness direction of the pressure-sensitive adhesive layer, and a transparent, adherent, refractive index-adjusting zone formed over a given range from a second principal surface of the pressure-sensitive adhesive layer in the thickness direction, and wherein the refractive index-adjusting zone has a refractive index greater than a refractive index of the base pressure-sensitive adhesive material.Type: ApplicationFiled: January 16, 2015Publication date: April 28, 2016Inventors: Hirofumi KATAMI, Toru UMEMOTO, Hiroyuki TAKAO, Takahiro NONAKA, Atsushi YASUI, Takami HIKITA
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Publication number: 20160084991Abstract: A laminate of optical elements comprises a transparent first optical element, a second optical element, and a transparent pressure-sensitive adhesive layer for bonding the first optical element to the second optical element. The pressure-sensitive adhesive layer comprises a base adhesive zone, a transparent refractive index-adjusting zone. The base adhesive zone is made essentially of a transparent base pressure-sensitive adhesive material and formed over a given range from a first principal surface of the pressure-sensitive adhesive layer facing the first optical element, in a thickness direction of the pressure-sensitive adhesive layer. The a transparent, adherent, refractive index-adjusting zone is formed over a given range from a second principal surface of the pressure-sensitive adhesive layer facing the second optical element.Type: ApplicationFiled: January 16, 2015Publication date: March 24, 2016Inventors: Toru UMEMOTO, Hirofumi KATAMI, Hiroyuki TAKAO, Takahiro NONAKA, Atsushi YASUI, Takami HIKITA
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Publication number: 20160064661Abstract: According to one embodiment, a resistive random access memory device includes a first electrode and a second electrode. The resistive random access memory device also includes a resistance change layer connected between the first electrode and the second electrode. The resistive random access memory device also includes a conductive layer connected in series to the resistance change layer between the first electrode and the second electrode. The resistive random access memory device in which the conductive layer includes a plurality of first material layers including a first material and a plurality of second material layers including a second material which is different from the first material.Type: ApplicationFiled: February 25, 2015Publication date: March 3, 2016Applicant: Kabushiki Kaisha ToshibaInventors: Tomohito KAWASHIMA, Takahiro NONAKA, Yusuke ARAYASHIKI, Takayuki ISHIKAWA
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Publication number: 20160053140Abstract: A double-sided pressure-sensitive adhesive sheet includes a pressure-sensitive adhesive layer containing an acrylic polymer formed of a component comprising, as an essential monomer component, an alkyl (meth)acrylate having an alkyl group having 9 or less carbon atoms. A shear storage elastic modulus at 23° C. of the pressure-sensitive adhesive layer, which is measured by dynamic viscoelasticity measurement, is 5.0×105 Pa or less, and a shear storage elastic modulus at ?50° C. of the pressure-sensitive adhesive layer, which is measured by dynamic viscoelasticity measurement, is 1.0×108 Pa or more.Type: ApplicationFiled: August 31, 2015Publication date: February 25, 2016Applicant: NITTO DENKO CORPORATIONInventors: Masahito NIWA, Kaori MIKI, Masato FUJITA, Takahiro NONAKA
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Publication number: 20150376477Abstract: Provided are an optical component having an excellent corrosion inhibition effect while achieving a high level of adhesion reliability and transparency, and pressure-sensitive adhesive composition and sheet that can produce such an optical component efficiently at a low cost. The pressure-sensitive adhesive composition according to the present invention includes a rust inhibitor, and a mixture of at least one monomer component for constituting a base polymer or a partially polymerized product of a mixture of at least one monomer component for constituting a base polymer. The monomer component includes no or substantially no acid group-containing monomer. The pressure-sensitive adhesive composition contains no or substantially no organic solvent. The pressure-sensitive adhesive sheet has a pressure-sensitive adhesive layer formed from such pressure-sensitive adhesive composition.Type: ApplicationFiled: January 28, 2014Publication date: December 31, 2015Applicant: NITTO DENKO CORPORATIONInventors: Hirofumi Katami, Takahiro Nonaka, Hiroaki Kishioka
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Publication number: 20150368516Abstract: A double-sided pressure-sensitive adhesive sheet includes a pressure-sensitive adhesive layer containing an acrylic polymer formed of a component comprising, as an essential monomer component, an alkyl (meth)acrylate having an alkyl group having 9 or less carbon atoms. A shear storage elastic modulus at 23° C. of the pressure-sensitive adhesive layer, which is measured by dynamic viscoelasticity measurement, is 5.0×105 Pa or less, and a shear storage elastic modulus at ?50° C. of the pressure-sensitive adhesive layer, which is measured by dynamic viscoelasticity measurement, is 1.0×108 Pa or more.Type: ApplicationFiled: August 31, 2015Publication date: December 24, 2015Applicant: NITTO DENKO CORPORATIONInventors: Masahito NIWA, Kaori MIKI, Masato FUJITA, Takahiro NONAKA
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Patent number: 9175194Abstract: An acrylic pressure-sensitive adhesive tape including an acrylic pressure-sensitive adhesive layer, wherein a 180° peel adhesive force of the acrylic pressure-sensitive adhesive tape to a glass plate is 10 N/20 mm or more and a 180° peel adhesive force of the acrylic pressure-sensitive adhesive tape to an acrylic plate is 10 N/20 mm or more. The acrylic pressure-sensitive adhesive layer contains an acrylic polymer (A), has a gel fraction of 65% or more, and has a 300% tensile residual stress of from 7 to 16 N/cm2.Type: GrantFiled: February 5, 2013Date of Patent: November 3, 2015Assignee: NITTO DENKO CORPORATIONInventors: Hirofumi Katami, Takahiro Nonaka
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Publication number: 20150064745Abstract: The present invention provides a method for producing a target protein in the form of a fusion protein at a high recovery ratio. The present invention relates to a method for producing a fusion protein made of a protein having a self-assembly capability and a target protein comprising the following steps (1) to (4): (1) preparing a solution containing the fusion protein; (2) adjusting a pH of the solution obtained in step (1) to such a pH that a recovery ratio calculated according to the following equation is 10% or more, where the recovery ratio (%)=[an amount of the fusion protein in a solution obtained in step (4)/{the amount of the fusion protein in the solution obtained in step (4)+an amount of the fusion protein in a solution after solid separation in step (3)}]×100; (3) separating a solid from the solution obtained in step (2); and (4) dissolving the solid separated in step (3) into a solution having a pH of 12 or below but higher than the pH of the solution obtained in step (2) by 0.Type: ApplicationFiled: November 12, 2014Publication date: March 5, 2015Applicant: AJIMOMOTO CO., INC.Inventors: TAKAHIRO NONAKA, TERUHISA MANNEN, NORIKO TSURUI
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Patent number: 8920601Abstract: Disclosed is a method for detaching two plates bonded through a double-coated pressure-sensitive adhesive sheet without substantially applying such a force (load) to the plates as to cause large distortion (deformation) leading to fracture or breakage of the plates. The method detaches two plates bonded through a double-coated pressure-sensitive adhesive sheet by applying a force to at least one of the two plates at least in a direction normal to the plate at such a temperature that the double-coated pressure-sensitive adhesive sheet has a storage elastic modulus of 1.0×107 Pa or more as measured by dynamic viscoelastic measurement.Type: GrantFiled: November 9, 2012Date of Patent: December 30, 2014Assignee: Nitto Denko CorporationInventors: Kaori Miki, Masahito Niwa, Takahiro Nonaka, Masato Fujita
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Publication number: 20140322440Abstract: A method for manufacturing an optical member includes forming a printed layer on one surface of a sheet substrate or flat-plate substrate. The method further includes coating one or more pressure-sensitive adhesives selected from the group consisting of a hot melt pressure-sensitive adhesive and an active energy-ray curable pressure-sensitive adhesive on a surface on a printed layer side of the sheet substrate or flat-plate substrate, and forming a pressure-sensitive adhesive layer of the pressure-sensitive adhesive.Type: ApplicationFiled: April 28, 2014Publication date: October 30, 2014Applicant: NITTO DENKO CORPORATIONInventors: Takahiro NONAKA, Hiroaki KISHIOKA, Hirofumi KATAMI
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Publication number: 20140272201Abstract: It is an object of the invention to provide a pressure-sensitive adhesive capable of forming a pressure-sensitive adhesive layer having high resistance to sebum and high resistance to moisture-induced clouding and also having low dielectric constant. The invention relates to a pressure-sensitive adhesive comprising a (meth)acryl-based polymer obtained by polymerization of a monomer component containing 65 to 88 parts by weight of an alkyl (meth)acrylate having an alkyl group of 8 to 22 carbon atoms and 12 to 35 parts by weight of an alkyl (meth)acrylate having a secondary hydroxyl group based on 100 parts by weight of the total amount of the alkyl (meth)acrylate having an alkyl group of 8 to 22 carbon atoms and the alkyl (meth)acrylate having a secondary hydroxyl group.Type: ApplicationFiled: March 10, 2014Publication date: September 18, 2014Applicant: NITTO DENKO CORPORATIONInventors: Ai TAKEDA, Katsuhiko KAMIYA, Kiyoe SHIGETOMI, Takahiro NONAKA
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Publication number: 20140256877Abstract: A pressure-sensitive adhesive sheet containing a pressure-sensitive adhesive layer. The pressure-sensitive adhesive layer has a melting point of ?60° C. to 0° C. The melting point can be measured by using the pressure-sensitive adhesive layer as a measurement sample according to differential scanning calorimetry (DSC) in conformity with JIS K 7121.Type: ApplicationFiled: March 7, 2014Publication date: September 11, 2014Applicant: NITTO DENKO CORPORATIONInventors: Kaori MIKI, Masahito NIWA, Masato FUJITA, Takahiro NONAKA
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Publication number: 20140226085Abstract: Provided are an optical component having an excellent corrosion inhibition effect while maintaining a high level of adhesion reliability and transparency, as well as a pressure-sensitive adhesive composition and a pressure-sensitive adhesive sheet that can produce such an optical component efficiently and at a low cost. The pressure-sensitive adhesive composition according to the present invention includes a rust inhibitor and a base polymer, characterized in that the base polymer does not or substantially does not contain an acid group-containing monomer as a constituent monomer component. Further provided is a pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer formed from such pressure-sensitive adhesive composition.Type: ApplicationFiled: February 4, 2014Publication date: August 14, 2014Applicant: NITTO DENKO CORPORATIONInventors: Hirofumi Katami, Takahiro Nonaka, Hiroaki Kishioka
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Publication number: 20140227502Abstract: Provided are an optical component capable of suppressing the occurrence of undulations, having an excellent corrosion inhibition effect while maintaining a high level of adhesion reliability and transparency, as well as a pressure-sensitive adhesive layer and a pressure-sensitive adhesive sheet that can produce such an optical component efficiently and at a low cost. The present invention provides an optical pressure-sensitive adhesive layer comprising a base polymer and a rust inhibitor, characterized in that the base polymer does not or substantially does not contain an acid group-containing monomer as a constituent monomer component, and that an 85° C. modulus of elasticity is not less than 5.0×104 Pa.Type: ApplicationFiled: February 4, 2014Publication date: August 14, 2014Applicant: NITTO DENKO CORPORATIONInventors: Hirofumi Katami, Takahiro Nonaka, Hiroaki Kishioka
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Patent number: 8801881Abstract: A method of producing a flat panel display including step 1-step 4, or step 1-step 5, where at least one of the optical elements after step 4 or step 5 can be reused as an optical element in step 1: step 1: adhering two optical elements to each other via an adhesive sheet or a curable resin layer, and applying an autoclave treatment to give an optical laminate step 2: checking the appearance of the optical laminate obtained in step 1 step 3: assembling a flat panel display using the optical laminate that passed the check in step 2 step 4: separating the two optical elements in an optical laminate that was rejected by the check in step 2 by relatively rotating them with a vertical line penetrating the opposing faces thereof as a rotation axis step 5: washing the optical element resulting from step 4.Type: GrantFiled: March 11, 2013Date of Patent: August 12, 2014Assignee: Nitto Denko CorporationInventors: Takahiro Nonaka, Masato Fujita, Masahito Niwa, Kaori Miki
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Patent number: 8691924Abstract: The present invention provides an optical-use pressure-sensitive adhesive sheet, which includes a pressure-sensitive adhesive layer containing a polymer formed of one or more monomer ingredients containing, as an indispensable monomer ingredient, a monomer of which homopolymer has a glass transition temperature of not lower than ?10° C., said sheet having a moisture content of at least 0.65% by weight after stored in an environment at 60° C. and 95% RH for 120 hours. The pressure-sensitive adhesive layer is preferably an acrylic pressure-sensitive adhesive layer.Type: GrantFiled: November 8, 2010Date of Patent: April 8, 2014Assignee: Nitto Denko CorporationInventors: Shou Takarada, Takahiro Nonaka, Hiroaki Kishioka, Hiroaki Fumoto, Tomohide Banba, Masayuki Okamoto, Masahito Niwa