Patents by Inventor Shunichiro Nakai
Shunichiro Nakai 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: 11385743Abstract: Provided is a light-transmitting conducive laminate which is moldable and has good designability. A light-transmitting conductive laminate is provided in which at least a surface skin material and a transparent conductive base are sequentially laminated from the input side.Type: GrantFiled: March 7, 2017Date of Patent: July 12, 2022Assignee: TORAY INDUSTRIES, INC.Inventors: Shunichiro Nakai, Akihito Tsukamoto, Naoki Tsujiuchi, Keiji Iwanaga
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Publication number: 20200149216Abstract: The invention relates to an environmentally friendly production method for a sheet-like article that does not use an organic solvent in the production process and provides a sheet-like article that compares favorably in terms of a uniform feel with artificial leather products produced from an organic solvent based polyurethane and in particular has good surface quality and texture and also provides a production method therefor. The present invention aims to provide a sheet-like article comprising a fibrous base material formed of ultrafine fibers and/or ultrafine fiber bundles provided with, as a binder, a polymer elastomer having a hydrophilic group, any thickness-directional cross section of the sheet-like article containing regions occupied by the polymer elastomer, the regions including independent regions each with a cross-sectional area of 50 ?m2 or more, the total area of the independent regions accounting for 0.1% or more and 5.Type: ApplicationFiled: January 14, 2020Publication date: May 14, 2020Applicant: TORAY INDUSTRIES, INC.Inventors: Hisashi Murahara, Shunichiro Nakai, Takahiro Tsuchimoto
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Patent number: 10480121Abstract: A sheet like article produced from a polyurethane resin has a carbonate group and an oxycarbonyl group as ester groups and has uniform, elegant surface quality, a flexible, highly crease recoverable texture, and high resistance to light and hydrolysis, and also provided is a production method therefore. The sheet like article is produced by adding, as a binder, a polyurethane resin that meets requirements (I) and (II) to a fibrous base material formed mainly of ultrafine fibers: (I) a polyurethane resin such that the polyurethane resin contains, in its interior, an oxycarbonyl group and a carbonate group as ester groups; (II) a polyurethane resin such that the sum of the content of the urethane group and the content of the urea group in the polyurethane resin is 7.0 to 11.0 mass %.Type: GrantFiled: October 14, 2015Date of Patent: November 19, 2019Assignee: Toray Industries, IncInventors: Shunichiro Nakai, Hisashi Murahara, Yukihiro Matsuzaki, Makoto Nishimura
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Patent number: 10301770Abstract: Provided is an environmentally friendly process for producing a sheet-shaped material having both an elegant, napped appearance and a soft texture, which qualities have not been achieved concurrently, and also exhibiting good abrasion resistance. The process of the present invention for producing a sheet-shaped material includes the successive steps of (a) adding a polyvinyl alcohol having a degree of saponification of 98% or more and a degree of polymerization of 800 to 3,500 to a fibrous substrate in an amount of 0.1 to 50% by mass relative to the total mass of fibers in the fibrous substrate; (b) adding a waterborne polyurethane to the fibrous substrate with the added polyvinyl alcohol; and (c) removing the polyvinyl alcohol from the fibrous substrate with the added waterborne polyurethane.Type: GrantFiled: September 13, 2013Date of Patent: May 28, 2019Assignee: TORAY INDUSTRIES, INC.Inventors: Gen Koide, Shunichiro Nakai, Satoshi Yanagisawa, Makoto Nishimura, Takahiro Tsuchimoto
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Publication number: 20190073055Abstract: Provided is a light-transmitting conducive laminate which is moldable and has good designability. A light-transmitting conductive laminate is provided in which at least a surface skin material and a transparent conductive base are sequentially laminated from the input side.Type: ApplicationFiled: March 7, 2017Publication date: March 7, 2019Applicant: Toray Industries , Inc.Inventors: Shunichiro Nakai, Akihito Tsukamoto, Naoki Tsujiuchi, Keji Iwanaga
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Publication number: 20170350069Abstract: A sheet like article produced from a polyurethane resin has a carbonate group and an oxycarbonyl group as ester groups and has uniform, elegant surface quality, a flexible, highly crease recoverable texture, and high resistance to light and hydrolysis, and also provided is a production method therefore. The sheet like article is produced by adding, as a binder, a polyurethane resin that meets requirements (I) and (II) to a fibrous base material formed mainly of ultrafine fibers: (I) a polyurethane resin such that the polyurethane resin contains, in its interior, an oxycarbonyl group and a carbonate group as ester groups; (II) a polyurethane resin such that the sum of the content of the urethane group and the content of the urea group in the polyurethane resin is 7.0 to 11.0 mass %.Type: ApplicationFiled: October 14, 2015Publication date: December 7, 2017Applicant: Toray Industries, Inc.Inventors: Shunichiro Nakai, Hisashi Murahara, Yukihiro Matsuzaki, Makoto Nishimura
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Publication number: 20170298569Abstract: Provided is a production method in which a sheet-like article that has high moist heat resistance and has good surface quality and texture can be produced, regardless of the coagulation technique used for the polyurethane, by an environmentally friendly manufacturing process that is designed to cause reaction of a crosslinking agent while maintaining the texture possessed by the material before crosslinking. The production method for sheet-like articles is a sheet-like article production method characterized by impregnating a fibrous base material with water dispersed polyurethane as a binder, coagulating it to provide a sheet, adding a solution or dispersion liquid of a crosslinking agent to the sheet, and then heating it at a temperature of 100° C. or more and 200° C. or less.Type: ApplicationFiled: September 16, 2015Publication date: October 19, 2017Applicant: TORAY INDUSTRIES, INC.Inventors: Hisashi MURAHARA, Shunichiro NAKAI, Masayuki ISHIKANE
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Publication number: 20170183814Abstract: A sheet material includes a fibrous substrate made of microfibers and a hydrophilic-group-containing resin applied to the fibrous substrate. The hydrophilic-group-containing resin has a microphase-separated structure that satisfies Condition I: In a phase image obtained by observing an area of 1 ?m2 in a cross-section of the hydrophilic-group-containing resin applied to the fibrous substrate by phase imaging using an atomic force microscope (AFM), a standard deviation of a mode of brightness distribution of areas of 0.2 ?m2 in the area of 1 ?m2 is from 0 to 10. Provided are a sheet material that is produced through an eco-conscious production process and yet has such uniformity that is comparable to those of man-made leathers produced using organic-solvent-based polyurethanes, an elegant surface appearance, and a good touch, and a method for producing such a sheet material.Type: ApplicationFiled: January 22, 2015Publication date: June 29, 2017Applicant: TORAY INDUSTRIES, INC.Inventors: Hisashi Murahara, Shunichiro Nakai, Yukihiro Matsuzaki, MAKOTO Nishimura
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Publication number: 20160362832Abstract: A sheet-like article is provided including a fibrous base material formed of ultrafine fibers and/or ultrafine fiber bundles provided with, as a binder, a polymer elastomer having a hydrophilic group, any thickness-directional cross section of the sheet-like article containing regions occupied by the polymer elastomer, the regions including independent regions each with a cross-sectional area of 50 ?m2 or more, the total area of the independent regions accounting for 0.1% or more and 5.0% or less of the cross-sectional area of the artificial leather in an observation view field.Type: ApplicationFiled: February 23, 2015Publication date: December 15, 2016Applicant: TORAY INDUSTRIES, INC.Inventors: Hisashi Murahara, Shunichiro Nakai, Takahiro Tsuchimoto
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Publication number: 20160289890Abstract: The invention provides a sheet-like article including: a fibrous base including ultrafine fibers; and a polyurethane resin as a binder to the fibrous base, wherein the polyurethane resin includes a polymer polyol-derived structure that includes a polycarbonate polyol-derived structure, and the polyurethane resin satisfies the following (I), (II) and (III) or (IV): (I) the polyurethane resin includes a carbonate bond, and an ether bond and/or an ester bond in the molecule; (II) the total content of urethane group and urea group in the polyurethane resin is 7 to 11% by mass; and (III) 80 to 100% by mass of a polycarbonate polyol yielding the polycarbonate polyol-derived structure is a polycarbonate polyol having a melting point of 20° C. or lower; or (IV) 80 to 100% by mass of a polycarbonate polyol yielding the polycarbonate polyol-derived structure is a polycarbonate polyol copolymerized with two or more polyhydric alcohols having different carbon skeletons.Type: ApplicationFiled: November 14, 2014Publication date: October 6, 2016Applicant: TORAY INDUSTRIES, INC.Inventors: Hisashi Murahara, Shunichiro Nakai, Yukihire Matsuzaki, Makoto Nishimura
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Publication number: 20150233050Abstract: Provided is an environmentally friendly process for producing a sheet-shaped material having both an elegant, napped appearance and a soft texture, which qualities have not been achieved concurrently, and also exhibiting good abrasion resistance. The process of the present invention for producing a sheet-shaped material includes the successive steps of (a) adding a polyvinyl alcohol having a degree of saponification of 98% or more and a degree of polymerization of 800 to 3,500 to a fibrous substrate in an amount of 0.1 to 50% by mass relative to the total mass of fibers in the fibrous substrate; (b) adding a waterborne polyurethane to the fibrous substrate with the added polyvinyl alcohol; and (c) removing the polyvinyl alcohol from the fibrous substrate with the added waterborne polyurethane.Type: ApplicationFiled: September 13, 2013Publication date: August 20, 2015Applicant: TORAY INDUSTRIES, INC.Inventors: Gen Koide, Shunichiro Nakai, Satoshi Yanagisawa, Makoto Nishimura, Takahiro Tsuchimoto
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Publication number: 20150118929Abstract: The present invention provides: a method for producing, by an eco-friendly production step, a sheet-form product that has an elegant napped appearance and that has excellent wear resistance and texture; and the sheet-form product. This sheet-form product includes a fibrous base material including ultrathin fibers with an average monofilament diameter of 0.3 to 7 [mu]m; and a water-dispersible polyurethane contained inside the fibrous base material, the water-dispersible polyurethane including both a substance having a molecular weight of 100 to 500 and having an amide bond, and inorganic particles having an average particle diameter of 1 nm to 10,000 nm. Porous particles having a BET specific surface of 5 m2/g or greater are preferably used as said inorganic particles.Type: ApplicationFiled: May 1, 2013Publication date: April 30, 2015Applicant: TORAY INDUSTRIES, INC.Inventors: Shunichiro Nakai, Gen Koide, Hisashi Murahara