Patents by Inventor Tsukasa Nakamura
Tsukasa Nakamura 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: 20200411990Abstract: A loop antenna unit including two loop antennas having a same number of turns and different winding directions, the two loop antennas being positioned in line symmetry and not superposed on each other in a plan view. Each of the two loop antennas includes a loop conductive line wound continuously in one direction with n turns, where n is an integer of 3 or more, forming loops from a start point to an end point on the outermost loop or the innermost loop, the loop conductive line being bent in a transitional region in a direction from an outer loop toward an inner loop such that the loops have bent portions positioned side by side from an outermost first loop to an (n?1)th loop in the transitional region, and a jumper wire positioned on the insulating layer to cross the transitional region in a plan view.Type: ApplicationFiled: September 14, 2020Publication date: December 31, 2020Applicant: TOPPAN PRINTING CO., LTD.Inventors: Tsukasa NAKAMURA, Nozomi ONAKA, Kenzo FUKUYOSHI
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Publication number: 20200343314Abstract: An electronic device includes first, second and third substrates positioned in this order when viewed in an observation direction, antenna units including first, second, third, and fourth antenna units formed such that the first and second antenna units are positioned on opposite sides of the second substrate and superposed on each other in the plan view, and that the third and fourth antenna units are positioned on the opposite sides of the second substrate and superposed on each other in the plan view, a display functional layer formed between the first and second substrates, a touch sensing functional layer formed between the first and second substrates, and including a capacitive touch sensing wiring unit and the first antenna unit, and a controller which is formed on the third substrate and controls a touch sensing function, a display function, a communication function, and a wireless charging function of the device.Type: ApplicationFiled: July 13, 2020Publication date: October 29, 2020Applicant: TOPPAN PRINTING CO., LTD.Inventors: Tsukasa Nakamura, Nozomi Onaka, Kenzo Fukuyoshi
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Publication number: 20200263058Abstract: A method for manufacturing an optical member which can improve bonding properties between a first member having a light transmitting property and a second member. The method includes a precuring step of forming a photocuring precured resin layer on a surface of the first member or the second member, the photocuring precured resin layer having a thin film on a side to be bonded with the second member or the first member, a bonding step of bonding the first member and the second member via the precured resin layer, and a final curing step of final-curing the precured resin layer to form a light transmitting resin layer. It is thereby possible to reduce the elastic modulus of the precured resin layer, suppress protrusion during bonding, and improve bonding properties.Type: ApplicationFiled: May 7, 2020Publication date: August 20, 2020Applicant: DEXERIALS CORPORATIONInventors: Naoto SUGAWARA, Naoki HAYASHI, Tsukasa NAKAMURA
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Publication number: 20200239662Abstract: A UV-photocured resin layer (and an image display device including the UV-photocured resin layer), the UV-photocured resin layer including the following cured components: an acrylate-based oligomer component selected from the group consisting of a polyisoprene-based (meth)acrylate oligomer, a polybutadiene-based (meth)acrylate oligomer, and a polyurethane-based (meth)acrylate oligomer; an acrylic-based monomer component including octyl acrylate or isobornyl acrylate; a plasticizer component; and a photoradical polymerization initiator component.Type: ApplicationFiled: April 6, 2020Publication date: July 30, 2020Applicant: DEXERIALS CORPORATIONInventors: Naoki HAYASHI, Tsukasa NAKAMURA
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Publication number: 20200207890Abstract: A photocurable resin composition which can improve adhesion between light transmitting members. The photocurable resin composition contains a monofunctional acrylic monomer having a heating residue of 85.0% or less after being heated at 60° C. for 30 minutes, a crosslinking agent, a photopolymerization initiator, and a softening agent composed of at least one of plasticizer and tackifier, and the heating residue after being heated at 60° C. for 30 minutes is less than 96.0%.Type: ApplicationFiled: December 13, 2017Publication date: July 2, 2020Applicant: DEXERIALS CORPORATIONInventors: Tsukasa NAKAMURA, Daisuke HARA
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Patent number: 10689546Abstract: A method for manufacturing an optical member which can improve bonding properties between a first member having a light transmitting property and a second member. The method includes a precuring step of forming a photocuring precured resin layer on a surface of the first member or the second member, the photocuring precured resin layer having a thin film on a side to be bonded with the second member or the first member, a bonding step of bonding the first member and the second member via the precured resin layer, and a final curing step of final-curing the precured resin layer to form a light transmitting resin layer. It is thereby possible to reduce the elastic modulus of the precured resin layer, suppress protrusion during bonding, and improve bonding properties.Type: GrantFiled: April 28, 2016Date of Patent: June 23, 2020Assignee: DEXERIALS CORPORATIONInventors: Naoto Sugawara, Naoki Hayashi, Tsukasa Nakamura
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Publication number: 20190275773Abstract: To suppress discoloration of a polarizing plate under high-temperature environments, provided is a photocurable resin composition for use in a cured resin layer of an image display device having an image display member, the cured resin layer, and a light transmitting member, in this order, the image display member including a polarizing plate. The photocurable resin composition has a water vapor transmission rate of 400 g/m2/day or more after curing, at a thickness of 0.3 mm, and under a 40° C. and 90% relative humidity environment.Type: ApplicationFiled: July 25, 2017Publication date: September 12, 2019Applicant: DEXERIALS CORPORATIONInventor: Tsukasa NAKAMURA
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Publication number: 20190006567Abstract: A liquid photocurable resin composition not containing a thermal polymerization initiator is applied to a surface of a light-transmitting cover member having a light-shielding layer or a surface of an image display member, irradiated with ultraviolet rays under an atmosphere where the oxygen concentration is significantly decreased and cured, to form a light-transmitting cured resin layer. Subsequently, the image display member and the light-transmitting cover member are stacked through the light-transmitting cured resin layer to manufacture an image display device of the present invention.Type: ApplicationFiled: September 5, 2018Publication date: January 3, 2019Applicant: DEXERIALS CORPORATIONInventors: Naoki HAYASHI, Yoshihisa SHINYA, Kouichi OGAWA, Tsukasa NAKAMURA
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Publication number: 20180201808Abstract: A method for manufacturing an optical member which can improve bonding properties between a first member having a light transmitting property and a second member. The method includes a precuring step of forming a photocuring precured resin layer on a surface of the first member or the second member, the photocuring precured resin layer having a thin film on a side to be bonded with the second member or the first member, a bonding step of bonding the first member and the second member via the precured resin layer, and a final curing step of final-curing the precured resin layer to form a light transmitting resin layer. It is thereby possible to reduce the elastic modulus of the precured resin layer, suppress protrusion during bonding, and improve bonding properties.Type: ApplicationFiled: April 28, 2016Publication date: July 19, 2018Applicant: Dexerials CorporationInventors: Naoto SUGAWARA, Naoki HAYASHI, Tsukasa NAKAMURA
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Publication number: 20160264429Abstract: Hydrotalcite particles having an extremely small average secondary particle diameter and a production process therefor. A resin composition comprising hydrotalcite fine particles and having excellent transparency and a molded article thereof. The hydrotalcite fine particles have an average secondary particle diameter measured by a dynamic light scattering method of 5 to 100 nm.Type: ApplicationFiled: May 20, 2016Publication date: September 15, 2016Inventors: Yusuke KUROGI, Tsukasa NAKAMURA, Shigeo MIYATA
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Publication number: 20160177054Abstract: A photocurable resin composition containing an acrylate-based oligomer component as component (a), an acrylic-based monomer component as component (b), a plasticizer component as component (c), and a photopolymerization initiator component as component (d). The total amount of the component (a) and the component (b) contained in the photocurable resin composition is 25 to 80% by mass, and the amount of the plasticizer component as the component (c) contained in the photocurable resin composition is 65 to 10% by mass. The component (c) contains a solid tackifier and a liquid plasticizing component, and the mass ratio of the tackifier to the liquid plasticizing component is in the range of 60 to 30:30 to 10.Type: ApplicationFiled: March 1, 2016Publication date: June 23, 2016Applicant: DEXERIALS CORPORATIONInventors: Naoki HAYASHI, Tsukasa NAKAMURA
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Patent number: 9309374Abstract: A photocurable resin composition contains an acrylate-based oligomer component as component (a), an acrylic-based monomer component as component (b), a plasticizer component as component (c), and a photopolymerization initiator component as component (d). The total amount of the component (a) and the component (b) contained in the photocurable resin composition is 25 to 80% by mass, and the amount of the plasticizer component as the component (c) contained in the photocurable resin composition is 65 to 10% by mass. The component (c) contains a solid tackifier and a liquid plasticizing component, and the mass ratio of the tackifier to the liquid plasticizing component is in the range of 60 to 30 : 30 to 10.Type: GrantFiled: January 24, 2013Date of Patent: April 12, 2016Assignee: DEXERIALS CORPORATIONInventors: Naoki Hayashi, Tsukasa Nakamura
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Publication number: 20150177430Abstract: A heat shielding material which is excellent, in the reflection of infrared light which causes a temperature rise and visible light transmission. The heat shielding material comprises high-aspect ratio plate-like crystal magnesium hydroxide having a crystal width of not less than 1 ?m and a crystal thickness of not more than 0.2 ?m as an effective component.Type: ApplicationFiled: June 27, 2013Publication date: June 25, 2015Inventors: Tsukasa Nakamura, Hitoshi Manabe, Daisuke Kudo, Shigeo Miyata
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Publication number: 20150037237Abstract: A process for producing hydrotalcite particles having an average secondary particle diameter of 1 to 100 nm. The production process is to produce hydrotalcite particles having an average secondary particle diameter measured by a frequency analyzing method of 1 to 100 nm, comprising reacting a mixed aqueous solution of a magnesium salt and an aluminum salt with an alkali substance and an interlaminar anion in a forced thin-film type micro-reactor having a reactive site clearance of 1 to 30 ?m, wherein the molar ratio of the alkali substance to the total of metal magnesium and metal aluminum is 2 to 15.Type: ApplicationFiled: March 25, 2013Publication date: February 5, 2015Inventors: Tsukasa Nakamura, Yusuke Kurogi
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Publication number: 20150010652Abstract: Hydrotalcite particles having an extremely small average secondary particle diameter and a production process therefor. A resin composition comprising hydrotalcite fine particles and having excellent transparency and a molded article thereof. The hydrotalcite fine particles have an average secondary particle diameter measured by a dynamic light scattering method of 5 to 100 nm.Type: ApplicationFiled: March 25, 2013Publication date: January 8, 2015Applicant: Kyowa Chemical Industry Co., Ltd.Inventors: Yusuke Kurogi, Tsukasa Nakamura, Shigeo Miyata
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Publication number: 20150005429Abstract: Magnesium hydroxide fine particles having a nano-order particle size, a low carbon content, high whiteness and high transparency and a production process therefor. The magnesium hydroxide fine particles have an average secondary particle diameter measured by frequency analysis of 1 to 100 nm and a carbon content of less than 0.9 wt %.Type: ApplicationFiled: February 8, 2013Publication date: January 1, 2015Applicant: KYOWA CHEMICAL INDUSTRY CO., LTD.Inventors: Tsukasa Nakamura, Yusuke Kurogi
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Publication number: 20140290849Abstract: A photocurable resin composition contains an acrylate-based oligomer component as component (a), an acrylic-based monomer component as component (b), a plasticizer component as component (c), and a photopolymerization initiator component as component (d). The total amount of the component (a) and the component (b) contained in the photocurable resin composition is 25 to 80% by mass, and the amount of the plasticizer component as the component (c) contained in the photocurable resin composition is 65 to 10% by mass. The component (c) contains a solid tackifier and a liquid plasticizing component, and the mass ratio of the tackifier to the liquid plasticizing component is in the range of 60 to 30:30 to 10.Type: ApplicationFiled: January 24, 2013Publication date: October 2, 2014Applicant: DEXERIALS CORPORATIONInventors: Naoki Hayashi, Tsukasa Nakamura
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Publication number: 20140065744Abstract: A liquid photocurable resin composition not containing a thermal polymerization initiator is applied to a surface of a light-transmitting cover member having a light-shielding layer or a surface of an image display member, irradiated with ultraviolet rays under an atmosphere where the oxygen concentration is significantly decreased and cured, to form a light-transmitting cured resin layer. Subsequently, the image display member and the light-transmitting cover member are stacked through the light-transmitting cured resin layer to manufacture an image display device of the present invention.Type: ApplicationFiled: April 18, 2013Publication date: March 6, 2014Applicant: Dexerials CorporationInventors: Naoki Hayashi, Yoshihisa Shinya, Kouichi Ogawa, Tsukasa Nakamura