Patents by Inventor Yutaka Minami
Yutaka Minami 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: 12043932Abstract: The present invention relates to a nonwoven fabric including a conjugated fiber containing 40% by mass or more and 80% by mass or less of a propylene homopolymer (A) having a melting point (Tm-D) measured by a differential scanning calorimeter (DSC) of higher than 120° C., 4% by mass or more and 40% by mass or less of a polypropylene-based resin (B) having a melting point (Tm-D) measured by a differential scanning calorimeter (DSC) of 120° C. or lower, and 10% by mass or more and 55% by mass or less of a polyethylene-based resin (C), wherein the nonwoven fabric has a texture uniformity of 2.1 or more and 3.0 or less and a bulkiness of 450 ?m or more.Type: GrantFiled: November 6, 2019Date of Patent: July 23, 2024Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Mari Yabe, Takumi Sugiuchi, Masaki Okano, Yutaka Minami
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Publication number: 20240159571Abstract: A position detection device includes a motor that rotates a drive target, a periodic sensor that detects a plurality of periods included in a periodic change generated by rotation of the motor, an origin sensor that detects an origin of the motor in a rotation direction, and a controller that controls the rotation of the motor based on signals output from each of the periodic sensor and the origin sensor. A repeated detection error in detecting the origin by the origin sensor is smaller than a rotation range of the motor corresponding to each period of the plurality of periods detected by the periodic sensor.Type: ApplicationFiled: January 4, 2024Publication date: May 16, 2024Inventors: Kazuki YOSHINO, Yutaka MINAMI, Yusuke NAGAE
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Publication number: 20230069506Abstract: A silane-containing compound having a cyclic structure in a molecular structure; a modified hydrogenated petroleum resin in which a bromine value, a silicon element content, a weight average molecular weight, and a molecular weight distribution are specific values; a modified hydrogenated petroleum resin obtained by subjecting the modified hydrogenated petroleum resin to a condensation reaction; an adhesive composition including the modified hydrogenated petroleum resin; an asphalt composition containing the silane-containing compound or the modified hydrogenated petroleum resin.Type: ApplicationFiled: December 23, 2020Publication date: March 2, 2023Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: Masami KANAMARU, Yutaka MINAMI, Takafumi AKIMOTO
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Publication number: 20210404099Abstract: The present invention relates to a nonwoven fabric including a conjugated fiber containing 40% by mass or more and 80% by mass or less of a propylene homopolymer (A) having a melting point (Tm-D) measured by a differential scanning calorimeter (DSC) of higher than 120° C., 4% by mass or more and 40% by mass or less of a polypropylene-based resin (B) having a melting point (Tm-D) measured by a differential scanning calorimeter (DSC) of 120° C. or lower, and 10% by mass or more and 55% by mass or less of a polyethylene-based resin (C), wherein the nonwoven fabric has a texture uniformity of 2.1 or more and 3.0 or less and a bulkiness of 450 ?m or more.Type: ApplicationFiled: November 6, 2019Publication date: December 30, 2021Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: Mari YABE, Takumi SUGIUCHI, Masaki OKANO, Yutaka MINAMI
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Patent number: 11034826Abstract: A polypropylene-based resin composition containing a polypropylene-based resin (A) which has a melting endotherm (?H-D) of 0 J/g or more and 40 J/g or less and which does not exhibit an observable melting point (Tm-D) or has a melting point (Tm-D) of 0° C. or higher and lower than 90° C., and a polypropylene-based resin (B) which has a melting endotherm (?H-D) of more than 40 J/g and 125 J/g or less.Type: GrantFiled: April 9, 2018Date of Patent: June 15, 2021Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Masami Kanamaru, Nozomu Fujii, Yutaka Minami
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Publication number: 20210087715Abstract: The present invention relates to a fiber including a thermoplastic resin composition containing a polypropylene-based resin (A) in which a melting endotherm (?H-D) obtained from a melting endothermic curve obtained by holding a sample under a nitrogen atmosphere at -10° C. for 5 minutes and then increasing the temperature at a rate of 10° C./min by using a differential scanning calorimeter (DSC) is 0 J/g or more and 80 J/g or less, and a melt flow rate (MFR) measured under a condition at a temperature of 230° C. and a load of 2.16 kg in conformity with JIS K7210 is 1,000 g/10 min or more; and a polypropylene-based resin (B) (exclusive of the polypropylene-based resin (A)) having a melting point (Tm-D) of higher than 120° C., the fiber having a fiber diameter of 2.0 denier or less.Type: ApplicationFiled: February 25, 2019Publication date: March 25, 2021Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: Takumi SUGIUCHI, Yutaka MINAMI, Mari YABE
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Publication number: 20210040298Abstract: A nonwoven fabric formed of an olefin-based resin composition (I) containing an olefin-based polymer (i) satisfying specific requirements; a spunbond nonwoven fabric obtained by melt-extruding and molding the olefin-based resin composition (I) at a resin temperature of 220° C. or lower, and a method for producing it; a multilayer nonwoven fabric containing the spunbond nonwoven fabric; a nonwoven fabric and a multilayer nonwoven fabric including composite fibers containing an olefin-based resin composition (II) containing an olefin-based polymer (ii) satisfying specific requirements; and a fiber product using the spunbond nonwoven fabric, the nonwoven fabric of composite fibers, or the multilayer nonwoven fabric.Type: ApplicationFiled: October 20, 2020Publication date: February 11, 2021Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Yohei KOORI, Tomoaki TAKEBE, Yutaka MINAMI, Takumi SUGIUCHI
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Patent number: 10844205Abstract: A nonwoven fabric formed of an olefin-based resin composition (I) containing an olefin-based polymer (i) satisfying specific requirements; a spunbond nonwoven fabric obtained by melt-extruding and molding the olefin-based resin composition (I) at a resin temperature of 220° C. or lower, and a method for producing it; a multilayer nonwoven fabric containing the spunbond nonwoven fabric; a nonwoven fabric and a multilayer nonwoven fabric including composite fibers containing an olefin-based resin composition (II) containing an olefin-based polymer (ii) satisfying specific requirements; and a fiber product using the spunbond nonwoven fabric, the nonwoven fabric of composite fibers, or the multilayer nonwoven fabric.Type: GrantFiled: July 3, 2015Date of Patent: November 24, 2020Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Yohei Koori, Tomoaki Takebe, Yutaka Minami, Takumi Sugiuchi
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Publication number: 20200216991Abstract: Provided is a crimped fiber constituted of the following first component and second component, wherein the first component is a propylene-based resin composition containing a propylene-based polymer (1-A) in which a melting point (Tm-D) obtained under a specified condition exceeds 120° C. and a propylene-based polymer (1-B) satisfying the conditions that (a) a weight average molecular weight (Mw) is 10,000 to 200,000, (b) a molecular weight distribution (Mw/Mn) is less than 4.0, and (c) a melting point (Tm-D) obtained under a specified condition is 0 to 120° C.; and the second component is a propylene-based polymer (2) in which a melt flow rate (MFR) under the foregoing measurement condition is 1 g/10 min or more and 2,000 g/10 min or less, and a melting point (Tm-D) observed under the foregoing measurement condition by using a differential scanning calorimeter (DSC) exceeds 120° C., or a propylene-based resin composition containing the propylene-based polymer (2).Type: ApplicationFiled: March 20, 2020Publication date: July 9, 2020Applicant: lDEMITSU KOSAN CO., LTD.Inventors: Yohei KOORI, Tomoaki TAKEBE, Yutaka MINAMI, Masami KANAMURU
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Publication number: 20200157327Abstract: The present invention relates to [1] a polypropylene-based resin composition satisfying the following requirements (1) and (2) in a differential molecular weight distribution curve which is obtained from measurement by the gel permeation chromatography using polystyrene as a conversion standard, and in which the abscissa represents a logarithmic value log(M) of a molecular weight M, and the ordinate represents a dw/d log(M) value obtained by differentiating a concentration fraction w by the logarithmic value log(M) of the molecular weight: (1) In the differential molecular weight distribution curve, a value obtained by integrating the dw/d log(M) values in the range of (5.5?log(M)) is 25% or less relative to a value obtained by integrating the dw/d log(M) values over the entire range of log(M); and (2) In the differential molecular weight distribution curve, a value obtained by integrating the dw/d log(M) values in the range of (log(M)?4.Type: ApplicationFiled: July 23, 2018Publication date: May 21, 2020Applicant: IDEMITSU KOSAN CO.,LTD.Inventors: Mari YABE, Takumi SUGIUCHI, Yutaka MINAMI, Tomoaki TAKEBE
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Publication number: 20200123360Abstract: A polypropylene-based resin composition containing a polypropylene-based resin (A) which has a melting endotherm (?H-D) of 0 J/g or more and 40 J/g or less and which does not exhibit an observable melting point (Tm-D) or has a melting point (Tm-D) of 0° C. or higher and lower than 90° C., and a polypropylene-based resin (B) which has a melting endotherm (?H-D) of more than 40 J/g and 125 J/g or less.Type: ApplicationFiled: April 9, 2018Publication date: April 23, 2020Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Masami KANAMARU, Nozomu FUJII, Yutaka MINAMI
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Publication number: 20200071867Abstract: The present invention relates to a crimped fiber including one component thereof containing a thermoplastic resin (A) and another component thereof containing a thermoplastic resin (B) and a thermoplastic resin (C), wherein a half-crystallization time at 25° C. of the thermoplastic resin (A) is shorter than a half-crystallization time at 25° C. of the thermoplastic resin (B), and a half-crystallization time at 25° C. of the thermoplastic resin (C) is longer than the half-crystallization time at 25° C. of the thermoplastic resin (B).Type: ApplicationFiled: May 16, 2018Publication date: March 5, 2020Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Mari YABE, Takumi SUGIUCHI, Yutaka MINAMI, Tomoaki TAKEBE
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Patent number: 10501663Abstract: A base polymer for hot-melt adhesive, containing a propylenic polymer (A) having a tensile modulus of elasticity of 60 MPa or more, and an olefinic polymer (B) having a tensile modulus of elasticity of less than 60 MPa, wherein, relative to 100 parts by mass of the total amount of the propylenic polymer (A) and the olefinic polymer (B), the content of the propylenic polymer (A) is 1 part by mass or more and less than 50 parts by mass, and the content of the olefinic polymer (B) is more than 50 parts by mass and 99 parts by mass or less; and a hot-melt adhesive containing the base polymer, and further containing at least one of (C) a tackifier resin and (D) an oil.Type: GrantFiled: December 22, 2015Date of Patent: December 10, 2019Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Kanako Samejima, Harumi Nakashima, Yutaka Minami, Tomoaki Takebe
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Publication number: 20180265752Abstract: A base polymer for hot-melt adhesive, containing a propylenic polymer (A) having a tensile modulus of elasticity of 60 MPa or more, and an olefinic polymer (B) having a tensile modulus of elasticity of less than 60 MPa, wherein, relative to 100 parts by mass of the total amount of the propylenic polymer (A) and the olefinic polymer (B), the content of the propylenic polymer (A) is 1 part by mass or more and less than 50 parts by mass, and the content of the olefinic polymer (B) is more than 50 parts by mass and 99 parts by mass or less; and a hot-melt adhesive containing the base polymer, and further containing at least one of (C) a tackifier resin and (D) an oil.Type: ApplicationFiled: December 22, 2015Publication date: September 20, 2018Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Kanako SAMEJIMA, Harumi NAKASHIMA, Yutaka MINAMI, Tomoaki TAKEBE
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Publication number: 20180209080Abstract: Provided is a crimped fiber constituted of the following first component and second component, wherein the first component is a propylene-based resin composition containing a propylene-based polymer (1-A) in which a melting point (Tm?D) obtained under a specified condition exceeds 120° C. and a propylene-based polymer (1-B) satisfying the conditions that (a) a weight average molecular weight (Mw) is 10,000 to 200,000, (b) a molecular weight distribution (Mw/Mn) is less than 4.0, and (c) a melting point (Tm?D) obtained under a specified condition is 0 to 120° C.; and the second component is a propylene-based polymer (2) in which a melt flow rate (MFR) under the foregoing measurement condition is 1 g/10 min or more and 2,000 g/10 min or less, and a melting point (Tm?D) observed under the foregoing measurement condition by using a differential scanning calorimeter (DSC) exceeds 120° C., or a propylene-based resin composition containing the propylene-based polymer (2).Type: ApplicationFiled: March 18, 2015Publication date: July 26, 2018Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Yohei KOORI, Tomoaki TAKEBE, Yutaka MINAMI, Masami KANAMARU
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Patent number: 9725626Abstract: Provided is a hot-melt adhesive which satisfies both solidification rate and adhesiveness. A base polymer for a hot-melt adhesive which satisfies the following (1) and (2): (1) a modulus of elasticity in tension at 23° C. is 400 MPa or less; and (2) a semi-crystallization time at 23° C. is 20 minutes or less.Type: GrantFiled: May 27, 2014Date of Patent: August 8, 2017Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Kazuhiro Hashima, Tomoaki Takebe, Yutaka Minami, Masao Inoue, Kenji Kobayashi
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Patent number: 9689098Abstract: The method of producing a spunbond nonwoven fabric promotes the bleed out of the additive, which has pleasant texture such as tactile feel and excellent flexibility. The spunbond nonwoven fabric is obtained by this method. Specifically, (1) the method of producing a spunbond nonwoven fabric includes annealing a spunbond nonwoven fabric formed by using a crystalline resin composition (I) containing a low crystalline olefin polymer (a) with an elastic modulus of 10 to 450 MPa in a content of 1 to 50% by mass, a high crystalline olefin polymer (b) with an elastic modulus of 500 to 2,000 MPa, the content of the component (b) being the rest, and an additive (c) in a content of 1 to 20,000 ppm by mass.Type: GrantFiled: January 31, 2012Date of Patent: June 27, 2017Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Yohei Koori, Tomoaki Takebe, Yutaka Minami
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Patent number: 9683141Abstract: Provided are an adhesive composition which has high holding strength and leaves no residual glue by using a polyolefinic polymer, and an adhesive tape using the same. A polyolefin which satisfies the following conditions (a-1), (b1), and (b2):(a-1) the relationship between the limiting viscosity and the stereoregularity is represented by the formula (i): ?20×?+56?mmmm??20×?+64 (wherein ? represents the limiting viscosity measured in tetralin at 135° C., and mmmm represents the meso pentad fraction (mol %)); (b1) the meso pentad fraction (mmmm) is from 20 to 60 mol %; and (b2) the limiting viscosity [?] measured in tetralin at 135° C. is from 0.01 to 2.0 dL/g.Type: GrantFiled: October 31, 2013Date of Patent: June 20, 2017Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Yutaka Minami, Kazuhiro Hashima, Masami Kanamaru
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Publication number: 20170145198Abstract: A nonwoven fabric formed of an olefin-based resin composition (I) containing an olefin-based polymer (i) satisfying specific requirements; a spunbond nonwoven fabric obtained by melt-extruding and molding the olefin-based resin composition (I) at a resin temperature of 220° C. or lower, and a method for producing it; a multilayer nonwoven fabric containing the spunbond nonwoven fabric; a nonwoven fabric and a multilayer nonwoven fabric including composite fibers containing an olefin-based resin composition (II) containing an olefin-based polymer (ii) satisfying specific requirements; and a fiber product using the spunbond nonwoven fabric, the nonwoven fabric of composite fibers, or the multilayer nonwoven fabric.Type: ApplicationFiled: July 3, 2015Publication date: May 25, 2017Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Yohei KOORI, Tomoaki TAKEBE, Yutaka MINAMI, Takumi SUGIUCHI
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Patent number: 9605185Abstract: A propylene-based polymer which satisfies the following (a1) to (d1): (a1) [mmmm]=60 to 80 mol %; (b1) weight-average molecular weight (Mw)=10,000 to 55,000; (c1) Mw/Mn?2.5; and (d1) [rmrm]?2.5 mol %.Type: GrantFiled: November 12, 2013Date of Patent: March 28, 2017Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Kenji Kobayashi, Masao Inoue, Yutaka Minami