Patents by Inventor Yukihiro Matsuzaki
Yukihiro Matsuzaki 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: 20240141584Abstract: In order to provide artificial leather having both strength (in particular, tensile strength and tear strength), surface appearance, and a dense feeling in artificial leather including a fiber-entangled body containing a nonwoven fabric made of ultrafine fibers containing a large amount of inorganic particles (in particular, metal compounds) as a constituent element, and an elastic polymer, the artificial leather of the present invention is artificial leather including a fiber-entangled body containing a nonwoven fabric made of ultrafine fibers having an average single fiber diameter of 1.0 ?m or more and 10.0 ?m or less as a constituent element and an elastic polymer, and satisfies the following requirements: (1) the ultrafine fibers include a polyester-based resin containing a manganese-based compound; (2) an average particle diameter of the manganese-based compound is 0.01 ?m or more and 0.20 ?m or less; and (3) the ultrafine fibers contain a manganese element in an amount of 0.1 ppm or more and 50.Type: ApplicationFiled: March 10, 2022Publication date: May 2, 2024Applicant: Toray Industries, Inc.Inventors: Haruka Oura, Tatsuya Hagiwara, Misao Omori, Yukihiro Matsuzaki
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Publication number: 20230407558Abstract: Provided is an artificial leather that achieves both a soft texture and excellent durability, and a method for manufacturing the same, the leather comprising: a fibrous base material formed from superfine fibers having an average single fiber diameter of 0.1-10 ?m; and a polymeric elastic body, where the polymer elastic body comprises a compound having a hydrophilic group and a compound having an ethylene oxide skeleton, the content of the compound in the polymeric elastic body of the artificial leather being 0.1-5 parts by mass per 100 parts by mass of the polymeric elastic body.Type: ApplicationFiled: November 25, 2021Publication date: December 21, 2023Applicant: Toray Industries, Inc.Inventors: Takuya Shibano, Shunichi Kimura, Satoshi Yanagisawa, Yukihiro Matsuzaki
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Patent number: 11441033Abstract: The present invention provides a sheet-like material having soft texture, durability capable of withstanding practical use, and abrasion resistance. The sheet-like material of the present invention is a sheet-like material containing a nonwoven fabric composed of an ultrafine fiber having an average single fiber diameter 0.Type: GrantFiled: February 6, 2018Date of Patent: September 13, 2022Assignee: TORAY INDUSTRIES, INC.Inventors: Ryuji Shikuri, Makoto Nishimura, Yukihiro Matsuzaki, Satoshi Yanagisawa
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Patent number: 11021838Abstract: A sheet material has good mechanical properties, flexibility, lightweight properties, and quality, and also relates to a production method therefor. The sheet material includes, as constitutional components, an elastic polymer and nonwoven fabric composed mainly of ultrafine hollow fiber with an average monofilament diameter in the range of 0.05 to 10 ?m, the ultrafine hollow fiber containing 2 to 60 hollows.Type: GrantFiled: August 18, 2015Date of Patent: June 1, 2021Assignee: Toray Industries, Inc.Inventors: Hajime Nishimura, Yukihiro Matsuzaki, Makoto Nishimura, Makoto Kaneko
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Patent number: 10626548Abstract: A base body for an artificial leather includes an intertwined fiber body mainly including an ultrafine fiber having a 0.01 to 10 ?m fiber diameter and an elastic polymer, the ultrafine fiber including, as a constituent polymer, a polyester obtained from a dicarboxylic acid and/or an ester-forming derivative thereof, and a diol, the polyester containing 15 to 500 ppm of a 1,2-propanediol-derived component.Type: GrantFiled: August 29, 2013Date of Patent: April 21, 2020Assignee: Toray Industries, Inc.Inventors: Hajime Nishimura, Yukihiro Matsuzaki, Makato Nishimura
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Publication number: 20190375935Abstract: The present invention provides a sheet-like material having soft texture, durability capable of withstanding practical use, and abrasion resistance. The sheet-like material of the present invention is a sheet-like material containing a nonwoven fabric composed of an ultrafine fiber having an average single fiber diameter 0.Type: ApplicationFiled: February 6, 2018Publication date: December 12, 2019Applicant: Toray Industries, Inc.Inventors: Ryuji Shikuri, Makoto Nishimura, Yukihiro Matsuzaki, Satoshi Yanagisawa
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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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Publication number: 20190210335Abstract: A composite sheet includes: a skin sheet including a sheet product made of ultrafine fibers having an average monofilament diameter of 0.1 to 10 ?m and an elastomer, and a woven or knitted fabric that are laminated on each other, and the skin sheet and the woven or knitted fabric are laminated on each other with a resin layer containing a flame retardant and an adhesive layer interposed therebetween.Type: ApplicationFiled: June 9, 2017Publication date: July 11, 2019Inventors: Shunichi Kimura, Tomoharu Hirose, Yukihiro Matsuzaki
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Publication number: 20180235287Abstract: A garment serves for easy removal of dirt adhering to the screen of a smart watch, wristwatch, etc. worn by the user. The garment is one used as long-sleeved outerwear provided with a sheet-like article formed of ultrafine fibers with an average monofilament diameter of 0.1 ?m or more and 7 ?m or less and attached to the inside and/or outside of a cuff.Type: ApplicationFiled: August 4, 2016Publication date: August 23, 2018Inventors: Masaru Ueno, Yukihiro Matsuzaki, Makoto Nishimura
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Patent number: 9970129Abstract: The present invention provides a conjugated fiber suitable for use as a crimped fiber capable of producing an artificial leather having highly dense texture and good quality. The present invention also provides a base body for an artificial leather and an artificial leather produced by using such conjugated fiber. The conjugated fiber of the present invention includes a conjugated fiber comprising a readily soluble polyester component and a less readily soluble component, and the readily soluble polyester component comprises a copolymerized polyester having 5 to 10% by mole of 5-sodium sulfoisophthalate copolymerized therewith and the readily soluble polyester component contains a polyalkylene glycol. The polyalkylene glycol is in the form of streaks extending in longitudinal direction of the fiber in the longitudinal cross section of the conjugated fiber.Type: GrantFiled: December 13, 2012Date of Patent: May 15, 2018Assignee: TORAY INDUSTRIES, INC.Inventors: Hajime Nishimura, Yukihiro Matsuzaki, Makoto Nishimura
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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: 20170254018Abstract: A sheet material has good mechanical properties, flexibility, lightweight properties, and quality, and also relates to a production method therefor. The sheet material includes, as constitutional components, an elastic polymer and nonwoven fabric composed mainly of ultrafine hollow fiber with an average monofilament diameter in the range of 0.05 to 10 ?m, the ultrafine hollow fiber containing 2 to 60 hollows.Type: ApplicationFiled: August 18, 2015Publication date: September 7, 2017Inventors: Hajime Nishimura, Yukihiro Matsuzaki, Makoto Nishimura, Makoto Kaneko
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Patent number: 9739009Abstract: A sheet-shaped object which is thin and, despite this, has a surface that is dense and is soft to the touch and which has practicable strength and a process for producing the sheet-shaped object are disclosed. This sheet-shaped object comprises ultrafine fibers having an average single-fiber diameter of 0.1-7 ?m and a polymeric elastomer comprising a polyurethane as a major component, wherein when a layer extending from one surface to a depth of 50% of the thickness is referred to as layer (A) and a layer extending from the other surface to a depth of 50% of the thickness is referred to as layer (B), then the ratio of the density of fibers (A?) in the layer (A) to the density of fibers (B?) in the layer (B) satisfies the following expression (a) and the ratio of the density of the polymeric elastomer comprising a polyurethane as a major component (A?) in the layer (A) to the density thereof (B?) in the layer (B) satisfies the following expression (b). The sheet-shaped object as a whole has a density of 0.2-0.Type: GrantFiled: September 5, 2014Date of Patent: August 22, 2017Assignee: Toray Industries, Inc.Inventors: Masaru Ueno, Makoto Sumida, Yukihiro Matsuzaki
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Patent number: 9707663Abstract: A polishing pad is provided with a compression elastic modulus of 0.17 MPa or more and 0.32 MPa or less produced by preparing a nonwoven fabric formed of bundles of ultrafine fibers with an average monofilament diameter of 3.0 ?m or more and 8.0 ?m or less, preparing a polishing pad base by impregnating the nonwoven fabric with a polyurethane based elastomer in an amount of 20 mass % or more and 50 mass % or less relative to the mass of the polishing pad base, and laminating the polishing pad base with a porous polyurethane layer containing wet-solidified polyurethane as primary component which has openings with an average opening diameter of 10 ?m or more and 90 ?m or less in its surface to serve as polishing surface layer.Type: GrantFiled: January 30, 2012Date of Patent: July 18, 2017Assignees: Toray Industries, Inc., Toray Coatex Co., Ltd.Inventors: Kuniyasu Shiro, Masaharu Wada, Hiroyasu Kato, Hajime Nishimura, Satoshi Yanagisawa, Yukihiro Matsuzaki
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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: 20170183815Abstract: The present invention provides an artificial leather including an entangled fiber mass of ultrafine fibers having a monofilament fineness of 0.01 dtex or more and 0.50 dtex or less and a polymeric elastomer; wherein at least one surface is napped; the cross-sectional profile curve of the napped surface has an arithmetic mean height Pa of 26 ?m or more and 100 ?m or less; the arithmetic mean height Pa of the cross-sectional profile curve of the opposite surface is 20% or more and 80% or less of the cross-sectional roughness Pa of the napped side; the existence frequency of asperity peaks found in the cross-sectional profile curve of the napped surface is 1.8 or more and 20 or less per 1.0 mm; and a woven or knitted fabric lamination is present near the opposite surface at a depth position of 10% or more and 50% or less.Type: ApplicationFiled: March 20, 2015Publication date: June 29, 2017Applicant: TORAY INDUSTRIES, INC.Inventors: Akito Kuroda, Tomoharu Hirose, Masaru Ueno, Koji Yamano, Katsuya Okajima, Yukihiro Matsuzaki, Yu Matsuoka, Hajime Nishimura, Satoshi Yanagisawa
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Publication number: 20160215445Abstract: A sheet-shaped object which is thin and, despite this, has a surface that is dense and is soft to the touch and which has practicable strength and a process for producing the sheet-shaped object are disclosed. This sheet-shaped object comprises ultrafine fibers having an average single-fiber diameter of 0.1-7 ?m and a polymeric elastomer comprising a polyurethane as a major component, wherein when a layer extending from one surface to a depth of 50% of the thickness is referred to as layer (A) and a layer extending from the other surface to a depth of 50% of the thickness is referred to as layer (B), then the ratio of the density of fibers (A?) in the layer (A) to the density of fibers (B?) in the layer (B) satisfies the following expression (a) and the ratio of the density of the polymeric elastomer comprising a polyurethane as a major component (A?) in the layer (A) to the density thereof (B?) in the layer (B) satisfies the following expression (b). The sheet-shaped object as a whole has a density of 0.2-0.Type: ApplicationFiled: September 5, 2014Publication date: July 28, 2016Applicant: TORAY INDUSTRIES, INC.Inventors: Masaru Ueno, Makoto Sumida, Yukihiro Matsuzaki
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Publication number: 20150252524Abstract: A base body for an artificial leather includes an intertwined fiber body mainly including an ultrafine fiber having a 0.01 to 10 ?m fiber diameter and an elastic polymer, the ultrafine fiber including, as a constituent polymer, a polyester obtained from a dicarboxylic acid and/or an ester-forming derivative thereof, and a diol, the polyester containing 15 to 500 ppm of a 1,2-propanediol-derived component.Type: ApplicationFiled: August 29, 2013Publication date: September 10, 2015Inventors: Hajime Nishimura, Yukihiro Matsuzaki, Makoto Nishimura
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Publication number: 20140370283Abstract: The present invention provides a conjugated fiber suitable for use as a crimped fiber capable of producing an artificial leather having highly dense texture and good quality. The present invention also provides a base body for an artificial leather and an artificial leather produced by using such conjugated fiber. The conjugated fiber of the present invention includes a conjugated fiber comprising a readily soluble polyester component and a less readily soluble component, and the readily soluble polyester component comprises a copolymerized polyester having 5 to 10% by mole of 5-sodium sulfoisophthalate copolymerized therewith and the readily soluble polyester component contains a polyalkylene glycol. The polyalkylene glycol is in the form of streaks extending in longitudinal direction of the fiber in the longitudinal cross section of the conjugated fiber.Type: ApplicationFiled: December 13, 2012Publication date: December 18, 2014Applicant: TORAY INDUSTRIES, INC.Inventors: Hajime Nishimura, Yukihiro Matsuzaki, Makoto Nishimura
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Publication number: 20130331014Abstract: A polishing pad is provided with a compression elastic modulus of 0.17 MPa or more and 0.32 MPa or less produced by preparing a nonwoven fabric formed of bundles of ultrafine fibers with an average monofilament diameter of 3.0 ?m or more and 8.0 ?m or less, preparing a polishing pad base by impregnating the nonwoven fabric with a polyurethane based elastomer in an amount of 20 mass % or more and 50 mass % or less relative to the mass of the polishing pad base, and laminating the polishing pad base with a porous polyurethane layer containing wet-solidified polyurethane as primary component which has openings with an average opening diameter of 10 ?m or more and 90 ?m or less in its surface to serve as polishing surface layer.Type: ApplicationFiled: January 30, 2012Publication date: December 12, 2013Applicants: TORAY INDUSTRIES, INC., TORAY COATEX CO., LTDInventors: Kuniyasu Shiro, Masaharu Wada, Hiroyasu Kato, Hajime Nishimura, Satoshi Yanagisawa, Yukihiro Matsuzaki