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).

  • Publication number: 20230069506
    Abstract: 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: Application
    Filed: December 23, 2020
    Publication date: March 2, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Masami KANAMARU, Yutaka MINAMI, Takafumi AKIMOTO
  • Publication number: 20210404099
    Abstract: 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: Application
    Filed: November 6, 2019
    Publication date: December 30, 2021
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Mari YABE, Takumi SUGIUCHI, Masaki OKANO, Yutaka MINAMI
  • Patent number: 11034826
    Abstract: 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: Grant
    Filed: April 9, 2018
    Date of Patent: June 15, 2021
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Masami Kanamaru, Nozomu Fujii, Yutaka Minami
  • Publication number: 20210087715
    Abstract: 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: Application
    Filed: February 25, 2019
    Publication date: March 25, 2021
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Takumi SUGIUCHI, Yutaka MINAMI, Mari YABE
  • Publication number: 20210040298
    Abstract: 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: Application
    Filed: October 20, 2020
    Publication date: February 11, 2021
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yohei KOORI, Tomoaki TAKEBE, Yutaka MINAMI, Takumi SUGIUCHI
  • Patent number: 10844205
    Abstract: 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: Grant
    Filed: July 3, 2015
    Date of Patent: November 24, 2020
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yohei Koori, Tomoaki Takebe, Yutaka Minami, Takumi Sugiuchi
  • Publication number: 20200216991
    Abstract: 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: Application
    Filed: March 20, 2020
    Publication date: July 9, 2020
    Applicant: lDEMITSU KOSAN CO., LTD.
    Inventors: Yohei KOORI, Tomoaki TAKEBE, Yutaka MINAMI, Masami KANAMURU
  • Publication number: 20200157327
    Abstract: 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: Application
    Filed: July 23, 2018
    Publication date: May 21, 2020
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Mari YABE, Takumi SUGIUCHI, Yutaka MINAMI, Tomoaki TAKEBE
  • Publication number: 20200123360
    Abstract: 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: Application
    Filed: April 9, 2018
    Publication date: April 23, 2020
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Masami KANAMARU, Nozomu FUJII, Yutaka MINAMI
  • Publication number: 20200071867
    Abstract: 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: Application
    Filed: May 16, 2018
    Publication date: March 5, 2020
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Mari YABE, Takumi SUGIUCHI, Yutaka MINAMI, Tomoaki TAKEBE
  • Patent number: 10501663
    Abstract: 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: Grant
    Filed: December 22, 2015
    Date of Patent: December 10, 2019
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Kanako Samejima, Harumi Nakashima, Yutaka Minami, Tomoaki Takebe
  • Publication number: 20180265752
    Abstract: 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: Application
    Filed: December 22, 2015
    Publication date: September 20, 2018
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Kanako SAMEJIMA, Harumi NAKASHIMA, Yutaka MINAMI, Tomoaki TAKEBE
  • Publication number: 20180209080
    Abstract: 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: Application
    Filed: March 18, 2015
    Publication date: July 26, 2018
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yohei KOORI, Tomoaki TAKEBE, Yutaka MINAMI, Masami KANAMARU
  • Patent number: 9725626
    Abstract: 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: Grant
    Filed: May 27, 2014
    Date of Patent: August 8, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Kazuhiro Hashima, Tomoaki Takebe, Yutaka Minami, Masao Inoue, Kenji Kobayashi
  • Patent number: 9689098
    Abstract: 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: Grant
    Filed: January 31, 2012
    Date of Patent: June 27, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yohei Koori, Tomoaki Takebe, Yutaka Minami
  • Patent number: 9683141
    Abstract: 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: Grant
    Filed: October 31, 2013
    Date of Patent: June 20, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yutaka Minami, Kazuhiro Hashima, Masami Kanamaru
  • Publication number: 20170145198
    Abstract: 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: Application
    Filed: July 3, 2015
    Publication date: May 25, 2017
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Yohei KOORI, Tomoaki TAKEBE, Yutaka MINAMI, Takumi SUGIUCHI
  • Patent number: 9605185
    Abstract: 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: Grant
    Filed: November 12, 2013
    Date of Patent: March 28, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Kenji Kobayashi, Masao Inoue, Yutaka Minami
  • Patent number: 9598615
    Abstract: Provided are a propylene-based polymer which enhances heat creep resistance and a hot-melt adhesive having excellent heat creep resistance. A propylene-based polymer which satisfies the following (1) and (2): (1) 125?a modulus of elasticity in tension (MPa) at 23° C.?400; and (2) 100?an elongation at break (%) at 23° C.?1,000, and a hot-melt adhesive containing the propylene-based polymer in an amount of 1 to 50% by mass.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: March 21, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Hiroki Fujinami, Kazuhiro Hashima, Yutaka Minami, Tomoaki Takebe
  • Patent number: 9587334
    Abstract: Provided is a non-woven fabric produced by using a polypropylene-based resin composition containing a specific low-crystalline polypropylene. The non-woven fabric is a non-woven fabric obtained by achieving reductions in denier values of fibers, the non-woven fabric being excellent in dispersibility of the fibers.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: March 7, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Tomoaki Takebe, Yutaka Minami, Yohei Koori