Patents by Inventor Hiroo Katsuta
Hiroo Katsuta 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: 20230323572Abstract: A conductive fiber includes a metal layer on a fiber surface, having an average number of crimps of 2 crimps/cm or more, a volume resistivity of 2×10?6 ?·cm to 1×10?2 ?·cm, and a total fineness of 10 dtex to 1000 dtex, and having an average single-fiber diameter of 5 ?m to 20 ?m.Type: ApplicationFiled: July 16, 2021Publication date: October 12, 2023Inventors: Hiroo Katsuta, Masafumi Sudo, Shingo Takechi, Hidekazu Kano
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Publication number: 20220408856Abstract: To provide a garment which can suppress stuffy feeling and heatful feeling in the garment to keep an environment in the garment comfortable and also has excellent wearing comfort and design so that it can be suitably used in a high temperature and/or high humidity environment and in various wearing scenes requiring comfort such as an office, a home and the like, it is provided that the garment made of a fabric having an air permeability of 50 to 500 cm3/cm2/s includes a blower fan unit and a path forming section for imparting directivity to wind in the garment inside the garment.Type: ApplicationFiled: August 5, 2020Publication date: December 29, 2022Inventors: Hiroo Katsuta, Kirita Sato, Hidekazu Kano, Hidetoshi Suzuki, Kazuya Fujita
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Publication number: 20220273053Abstract: A garment has excellent contact cold sensation and gives persistent contact cold sensation but also can reduce heatful feeling and is suitably wearable in wearing scenes such as offices and homes. The garment includes one or plural fans for taking external air into a space between the garment and the body. A fabric of the garment has a contact cold/warm sensation value Q-max of 0.30 W/cm2 or larger and a basis weight of 250 g/m2 or less.Type: ApplicationFiled: July 3, 2020Publication date: September 1, 2022Inventors: Kirita Sato, Hiroo Katsuta, Hidekazu Kano
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Publication number: 20220225694Abstract: A fan unit for an air-conditioned garment, wherein the fan unit takes external air into an interspace between the garment and a wearer's body, the fan unit including: a fan that blows external air into the interior of the garment; a motor that rotates the fan; a battery that supplies power to the motor; a charging terminal for charging the battery; and a power switch to start and stop the fan unit, wherein the fan, the motor and the battery are housed in a casing, the casing has an air intake port that takes in external air, and an air blowing port that blows the taken-in external air into the interior of the garment, the charging terminal and the power switch are provided on the exterior of the casing, and the casing has a thickness of 5 to 30 mm in an axial direction of the fan.Type: ApplicationFiled: April 10, 2020Publication date: July 21, 2022Inventors: Hiroo Katsuta, Kirita Sato, Hidekazu Kano, Hidetoshi Suzuki, Kazuya Fujita
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Publication number: 20220049380Abstract: In order to provide a copolymerized polyphenylene sulfide fiber that is thin, has a low heat shrinkage rate, and is suitable for a use as a paper-making binder having excellent weldability, a copolymerized polyphenylene sulfide fiber is characterized by containing a copolymerized polyphenylene sulfide that has a p-phenylene sulfide unit as a main component and contains 3 mol % or more and 40 mol % or less of a m-phenylene sulfide unit in a repeating unit, and having a degree of crystallization of 10.0% or more and 30.0% or less, an average fiber diameter of 5 ?m or more and 25 ?m or less, and further a shrinkage rate in 98° C. hot water of 25.0% or less.Type: ApplicationFiled: September 19, 2019Publication date: February 17, 2022Applicant: TORAY Industries, Inc.Inventors: Shohei TSUCHIYA, Hiroo KATSUTA, Yoshitsugu FUNATSU
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Publication number: 20210040660Abstract: The present invention relates to a spun-bonded nonwoven fabric including a monocomponent fiber including a copolymerized polyester based resin in which 5 weight % or higher and 40 weight % or lower of a polyethylene glycol is copolymerized with a polyester based resin, in which the spun-bonded nonwoven fabric has a ?MR of 0.5% or higher and 15% or lower.Type: ApplicationFiled: January 23, 2019Publication date: February 11, 2021Applicant: Toray Industries, Inc.Inventors: Yuka Nishiguchi, Hiroo Katsuta, Yoshitsugu Funatsu, Yoshitaka Aranishi, Kentaro Kajiwara
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Publication number: 20200240061Abstract: Provided is a spunbond nonwoven fabric which is made of a polypropylene fiber and satisfies all of the following conditions A to E: A. the average single fiber diameter of the fiber is 6-17 ?m; B. the degree of crystal orientation of the fiber as obtained by wide-angle X-ray diffraction is at least 0.91; C. the crystallite size of the (110) plane of the fiber as obtained by wide angle X-ray diffraction is at least 12 nm; D. the average orientation parameter of the fiber as obtained by Raman spectroscopy is at least 8.0; and E. the complex viscosity of the spunbond nonwoven fabric at a temperature of 230° C. is 20-100 Pa·sec at an angular frequency of 6.3 rad/sec.Type: ApplicationFiled: September 27, 2018Publication date: July 30, 2020Applicant: Toray Industries, Inc.Inventors: Hiroo Katsuta, Yoshitsugu Funatsu, Masanori Endo
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Patent number: 10584429Abstract: A method of producing a liquid crystalline polyester fiber includes subjecting a yarn prepared by melt spinning a liquid crystalline polyester to a solid-phase polymerization after applying inorganic particles (A) and a phosphate-based compound (B) to the yarn. The method can optionally include cleaning the liquid crystalline polyester fiber after the solid-phase polymerization.Type: GrantFiled: June 25, 2018Date of Patent: March 10, 2020Assignee: Toray Industries, Inc.Inventors: Chieko Kawamata, Yusuke Ono, Hiroo Katsuta, Yoshitsugu Funatsu
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Patent number: 10138577Abstract: A poly(phenylene sulfide) fiber contains 1-10% by weight of a poly(phenylene sulfide) oligomer having a weight-average molecular weight of 5,000 or less, has a difference between a cold crystallization heat quantity (?Hc) and a crystal melting heat quantity (?Hm) during temperature rising in DSC, ?Hm??Hc, of 25 J/g or larger, and has an elongation of less than 40% and a strength of 3.0 cN/dtex or higher. The poly(phenylene sulfide) fiber has high heat resistance and chemical resistance and high strength and, despite this, has excellent suitability for high-order processing, e.g., thermal shapability, because the amorphous parts thereof have high molecular movability.Type: GrantFiled: May 22, 2015Date of Patent: November 27, 2018Assignee: Toray Industries, Inc.Inventors: Hiroo Katsuta, Takaaki Mihara, Daisuke Yamamoto, Shunsuke Horiuchi, Yoshitsugu Funatsu
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Publication number: 20180305841Abstract: A method of producing a liquid crystalline polyester fiber includes subjecting a yarn prepared by melt spinning a liquid crystalline polyester to a solid-phase polymerization after applying inorganic particles (A) and a phosphate-based compound (B) to the yarn. The method can optionally include cleaning the liquid crystalline polyester fiber after the solid-phase polymerization.Type: ApplicationFiled: June 25, 2018Publication date: October 25, 2018Inventors: Chieko Kawamata, Yusuke Ono, Hiroo Katsuta, Yoshitsugu Funatsu
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Patent number: 10106655Abstract: A poly(phenylene sulfide) fiber changes little in fiber structure and has excellent long-term heat resistance. Namely, the poly(phenylene sulfide) fiber has a degree of crystallization of 45.0% or higher, a content of movable amorphous components of 15.0% or less, and a weight-average molecular weight of 300,000 or less.Type: GrantFiled: September 24, 2015Date of Patent: October 23, 2018Assignee: Toray Industries, Inc.Inventors: Hiroo Katsuta, Reo Mitsunaga, Daisuke Yamamoto, Shunsuke Horiuchi, Yoshitsugu Funatsu
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Publication number: 20170226292Abstract: A poly(phenylene sulfide) fiber changes little in fiber structure and has excellent long-term heat resistance. Namely, the poly(phenylene sulfide) fiber has a degree of crystallization of 45.0% or higher, a content of movable amorphous components of 15.0% or less, and a weight-average molecular weight of 300,000 or less.Type: ApplicationFiled: September 24, 2015Publication date: August 10, 2017Inventors: Hiroo Katsuta, Reo Mitsunaga, Daisuke Yamamoto, Shunsuke Horiuchi, Yoshitsugu Funatsu
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Publication number: 20170198414Abstract: A poly(phenylene sulfide) fiber contains 1-10% by weight of a poly(phenylene sulfide) oligomer having a weight-average molecular weight of 5,000 or less, has a difference between a cold crystallization heat quantity (?Hc) and a crystal melting heat quantity (?Hm) during temperature rising in DSC, ?Hm??Hc, of 25 J/g or larger, and has an elongation of less than 40% and a strength of 3.0 cN/dtex or higher. The poly(phenylene sulfide) fiber has high heat resistance and chemical resistance and high strength and, despite this, has excellent suitability for high-order processing, e.g., thermal shapability, because the amorphous parts thereof have high molecular movability.Type: ApplicationFiled: May 22, 2015Publication date: July 13, 2017Inventors: Hiroo Katsuta, Takaaki Mihara, Daisuke Yamamoto, Shunsuke Horiuchi, Yoshitsugu Funatsu
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Patent number: 9169578Abstract: A liquid crystalline polyester fiber which exhibits a half width of endothermic peak (Tm1) of 15° C. or above as observed in differential calorimetry under heating from 50° C. at a temperature elevation rate of 20° C./min and a strength of 12.0 cN/dtex or more; and a process for production of the same. A liquid crystalline polyester fiber which is excellent in abrasion resistance and lengthwise uniformity and is improved in weavability and quality of fabric and which is characterized by a small single-fiber fineness can be efficiently produced without impairing the characteristics inherent in fabric made of liquid crystalline polyester fiber produced by solid phase polymerization, namely, high strength, high elastic modulus and excellent thermal resistance.Type: GrantFiled: December 16, 2013Date of Patent: October 27, 2015Assignee: TORAY INDUSTRIES, INC.Inventors: Yoshitsugu Funatsu, Hiroo Katsuta, Yuhei Maeda
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Patent number: 9011743Abstract: Disclosed are liquid crystal polyester fibers, which have a peak half-width of 15° C. or greater at an endothermic peak (Tm1) observed by differential calorimetry under a temperature elevation of 20° C./minute from 50° C., polystyrene equivalent weight average molecular weight of 250,000 or more and 2,000,000 or less, and a variable waveform of less than 10% in terms of the half inert diagram mass waveform determined by a Uster yarn irregularity tester. Also disclosed is a method for producing liquid crystal polyester fibers, wherein liquid crystal polyester fibers are formed into a package, the fibers are then subjected to solid-phase polymerization, and the solid-phase polymerized liquid crystal polyester fibers are unrolled from the package and successively heat treated without being once taken up. The heat treatment temperature is controlled at a temperature of the endothermic peak temperature (Tm1) of the solid-phase polymerized liquid crystal polyester fibers+60° C.Type: GrantFiled: March 4, 2010Date of Patent: April 21, 2015Assignee: Toray Industries, Inc.Inventors: Yoshitsugu Funatsu, Yuhei Maeda, Norio Suzuki, Hiroo Katsuta
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Publication number: 20140106169Abstract: A liquid crystalline polyester fiber which exhibits a half width of endothermic peak (Tm1) of 15° C. or above as observed in differential calorimetry under heating from 50° C. at a temperature elevation rate of 20° C./min and a strength of 12.0 cN/dtex or more; and a process for production of the same. A liquid crystalline polyester fiber which is excellent in abrasion resistance and lengthwise uniformity and is improved in weavability and quality of fabric and which is characterized by a small single-fiber fineness can be efficiently produced without impairing the characteristics inherent in fabric made of liquid crystalline polyester fiber produced by solid phase polymerization, namely, high strength, high elastic modulus and excellent thermal resistance.Type: ApplicationFiled: December 16, 2013Publication date: April 17, 2014Applicant: TORAY INDUSTRIES, INC.Inventors: Yoshitsugu FUNATSU, Hiroo KATSUTA, Yuhei MAEDA
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Patent number: 8673174Abstract: A liquid crystalline polyester fiber which exhibits a half width of endothermic peak (Tm1) of 15° C. or above as observed in differential calorimetry under heating from 50° C. at a temperature elevation rate of 20° C./min and a strength of 12.0 cN/dtex or more; and a process for production of the same. A liquid crystalline polyester fiber which is excellent in abrasion resistance and lengthwise uniformity and is improved in weavability and quality of fabric and which is characterized by a small single-fiber fineness can be efficiently produced without impairing the characteristics inherent in fabric made of liquid crystalline polyester fiber produced by solid phase polymerization, namely, high strength, high elastic modulus and excellent thermal resistance.Type: GrantFiled: February 27, 2008Date of Patent: March 18, 2014Assignee: Toray Industries, Inc.Inventors: Yoshitsugu Funatsu, Hiroo Katsuta, Yuhei Maeda
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Publication number: 20140017965Abstract: Provided are liquid crystal polyester fibers having a running tension variable width (R) of 5 cN or less and an oil component deposition rate of 3.0 wt % or less. Also provided is a method for producing liquid crystal polyester fibers whereby solid-phase polymerization is performed after applying inorganic particles (A) and phosphoric acid compound (B) to yarn obtained by melt spinning of liquid crystal polyester. Further provided is a mesh textile formed from the liquid crystal polyester fibers. By means of the liquid crystal polyester fibers, method for producing the same, and mesh textile, step transition and product yield during the weaving steps are excellent in that there is little scum and there is little variation of the running tension during the weaving steps.Type: ApplicationFiled: March 12, 2012Publication date: January 16, 2014Applicant: Toray Industries, Inc.Inventors: Chieko Kawamata, Yusuki Ono, Hiroo Katsuta, Yoshitsugu Funatsu
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Publication number: 20110318982Abstract: Disclosed are liquid crystal polyester fibers, which have a peak half-width of 15° C. or greater at an endothermic peak (Tm1) observed by differential calorimetry under a temperature elevation of 20° C./minute from 50° C., polystyrene equivalent weight average molecular weight of 250,000 or more and 2,000,000 or less, and a variable waveform of less than 10% in terms of the half inert diagram mass waveform determined by a Uster yarn irregularity tester. Also disclosed is a method for producing liquid crystal polyester fibers, wherein liquid crystal polyester fibers are formed into a package, the fibers are then subjected to solid-phase polymerization, and the solid-phase polymerized liquid crystal polyester fibers are unrolled from the package and successively heat treated without being once taken up. The heat treatment temperature is controlled at a temperature of the endothermic peak temperature (Tm1) of the solid-phase polymerized liquid crystal polyester fibers+60° C.Type: ApplicationFiled: March 4, 2010Publication date: December 29, 2011Inventors: Yoshitsugu Funatsu, Yuhei Maeda, Norio Suzuki, Hiroo Katsuta
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Publication number: 20100104870Abstract: A liquid crystalline polyester fiber which exhibits a half width of endothermic peak (Tm1) of 15° C. or above as observed in differential calorimetry under heating from 50° C. at a temperature elevation rate of 20° C./min and a strength of 12.0 cN/dtex or more; and a process for production of the same. A liquid crystalline polyester fiber which is excellent in abrasion resistance and lengthwise uniformity and is improved in weavability and quality of fabric and which is characterized by a small single-fiber fineness can be efficiently produced without impairing the characteristics inherent in fabric made of liquid crystalline polyester fiber produced by solid phase polymerization, namely, high strength, high elastic modulus and excellent thermal resistance.Type: ApplicationFiled: February 27, 2008Publication date: April 29, 2010Inventors: Yoshitsugu Funatsu, Hiroo Katsuta, Yuhei Maeda