Patents by Inventor Kenji Yoshino

Kenji Yoshino 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).

  • Patent number: 11845841
    Abstract: Provided are a foldable display that is excellent in mass production applicability, and that does not have image distortion that can appear in the folding portion after the display is repeatedly folded; and a mobile device equipped with such a foldable display. Provided are a polyester film for surface protection films and a hard coating film for surface protection films for the foldable display and mobile device. The polyester film is for foldable display surface protection films, wherein the polyester film is cut in sheet form, the polyester film has a thickness of 10 to 75 ?m, the polyester film has an intrinsic viscosity of 0.55 to 0.65 dl/g, and the amount of rise of a cut plane on at least one side of one or more cut end portions is 35 ?m or less. The hard coating film, the foldable display, and the mobile device use the polyester film for foldable display surface protection films.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: December 19, 2023
    Assignee: TOYOBO CO., LTD.
    Inventors: Kenji Yoshino, Kiwamu Kawai, Shotaro Nishio
  • Publication number: 20230382084
    Abstract: A molding packaging material is capable of ensuring good slipperiness to secure good formability when molding the molding packaging material and is less likely to cause white powder on a surface of the packaging material. The molding packaging material includes a substrate layer as an outer layer, a heat fusible resin layer as an inner layer, and a metal foil layer arranged between the two layers. The heat fusible resin layer is composed of a single layer or a multi-layer. The innermost layer of the heat fusible resin layer is made of a resin composition containing a heat fusible resin, an anti-blocking agent, a slip agent, and a fluoropolymer-based lubricant.
    Type: Application
    Filed: August 8, 2023
    Publication date: November 30, 2023
    Applicant: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Kenji YOSHINO, Makoto KARATSU, Takashi NAGAOKA
  • Patent number: 11766848
    Abstract: Provided is a molding packaging material which is capable of ensuring good slipperiness to secure good formability when molding the molding packaging material and is less likely to cause white powder on a surface of the packaging material. The molding packaging material includes a substrate layer 2 as an outer layer, a heat fusible resin layer 3 as an inner layer, and a metal foil layer 4 arranged between the two layers. The heat fusible resin layer 3 is composed of a single layer or a multi-layer. The innermost layer of the heat fusible resin layer 3 is made of a resin composition containing a heat fusible resin, an anti-blocking agent, a slip agent, and a fluoropolymer-based lubricant.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: September 26, 2023
    Assignee: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Kenji Yoshino, Makoto Karatsu, Takashi Nagaoka
  • Patent number: 11446902
    Abstract: Provided is a molding packaging material capable of sealing without causing sealing failure, significantly reducing cleaning frequency of a seal bar to improve productivity, and preventing occurrence of delamination. The molding packaging material includes a PBT terephthalate (PBT) layer 2, a heat fusible resin layer 3, and a metal foil layer 4 between the two layers. The PBT layer 2 and the metal foil layer 4 are bonded via an outer adhesive layer 5. The outer adhesive layer 5 is formed of a urethane adhesive cured film composed of a polyester polyol, a polyfunctional isocyanate compound, and polyhydric alcohol. The polyester polyol contains a dicarboxylic acid component, the dicarboxylic acid component includes an aromatic dicarboxylic acid. The dicarboxylic acid component contains an aromatic dicarboxylic acid. The content rate of the aromatic dicarboxylic acid in the dicarboxylic acid component is 40 mol % to 80 mol %. The Young's modulus of the cured film of the urethane adhesive is 70 MPa to 400 MPa.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: September 20, 2022
    Assignee: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Kenji Yoshino, Yuji Minamibori, Katsumi Tanaka
  • Publication number: 20210376417
    Abstract: A laminated body includes a barrier layer made of metal, a base material layer made of a heat-resistant resin laminated on an outer side surface of the barrier layer, and a sealant layer made of a heat sealable resin laminated to an inner side surface of the barrier layer. The base material layer includes a polyester film layer as an outer layer and a polyamide film layer as an inner layer. The polyester film layer is 500 MPa to 600 MPa in a sum of breaking strength in an MD and breaking strength in a TD, 0.8 to 1.1 in a ratio of the breaking strength in the TD to the breaking strength in the MD, and 110% to 200% in breaking elongation in the MD and breaking elongation in the TD. The MD denotes a machine flow direction, and the TD denotes a direction perpendicular to the MD.
    Type: Application
    Filed: May 28, 2021
    Publication date: December 2, 2021
    Applicant: SHOWA DENKO PACKAGING CO., LTD.
    Inventor: Kenji YOSHINO
  • Publication number: 20210362473
    Abstract: Provided is a molding packaging material which is capable of ensuring good slipperiness to secure good formability when molding the molding packaging material and is less likely to cause white powder on a surface of the packaging material. The molding packaging material includes a substrate layer 2 as an outer layer, a heat fusible resin layer 3 as an inner layer, and a metal foil layer 4 arranged between the two layers. The heat fusible resin layer 3 is composed of a single layer or a multi-layer. The innermost layer of the heat fusible resin layer 3 is made of a resin composition containing a heat fusible resin, an anti-blocking agent, a slip agent, and a fluoropolymer-based lubricant.
    Type: Application
    Filed: August 17, 2018
    Publication date: November 25, 2021
    Applicant: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Kenji YOSHINO, Makoto KARATSU, Takashi NAGAOKA
  • Publication number: 20210179794
    Abstract: Provided are a foldable display that is excellent in mass production applicability, and that does not have image distortion that can appear in the folding portion after the display is repeatedly folded; and a mobile device equipped with such a foldable display. Provided are a polyester film for surface protection films and a hard coating film for surface protection films for the foldable display and mobile device. The polyester film is for foldable display surface protection films, wherein the polyester film is cut in sheet form, the polyester film has a thickness of 10 to 75 ?m, the polyester film has an intrinsic viscosity of 0.55 to 0.65 dl/g, and the amount of rise of a cut plane on at least one side of one or more cut end portions is 35 ?m or less. The hard coating film, the foldable display, and the mobile device use the polyester film for foldable display surface protection films.
    Type: Application
    Filed: April 3, 2019
    Publication date: June 17, 2021
    Applicant: TOYOBO CO., LTD.
    Inventors: Kenji YOSHINO, Kiwamu KAWAI, Shotaro NISHIO
  • Patent number: 10967552
    Abstract: A void-containing polyester is disclosed which is excellent in concealing properties, whiteness, and thermal dimensional stability. A void-containing polyester film includes an internal void-containing layer (layer A). The void-containing layer contains a polyester matrix resin and a polypropylene dispersed resin, and satisfies the following requirements (1) to (3), and an apparent density of the film is in a range of 0.8 to 1.2 g/cm3. (1) A melt viscosity (?1) of the polyester resin at a melting temperature of 280° C. and a shear rate of 121.6 sec?1 is 90 to 400 Pa·s (2) A melt viscosity (?2) of the polypropylene resin at a melting temperature of 280° C. and a shear rate of 121.6 sec?1 is 300 to 850 Pa·s (3) A melt viscosity ratio (?2/?1) of the polyester resin and the polypropylene resin at a melting temperature of 280° C. and a shear rate of 121.6 sec?1 is 1.5 to 4.5.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: April 6, 2021
    Assignee: TOYOBO CO., LTD.
    Inventors: Shoji Deguchi, Kenji Yoshino
  • Patent number: 10847763
    Abstract: A packaging material for a power storage device includes a heat resistant resin layer 2 as an outer layer, a sealant layer 3 as an inner layer, and a metal foil layer 4 arranged between these layers. The sealant layer 3 is composed of one layer or a plurality of layers. The innermost layer 7 of the sealant layer contains a random copolymer containing propylene as a copolymerization component and another copolymerization component other than propylene, a roughening material, and a lubricant. The roughening material is composed of particles containing a thermoplastic resin. The center line average roughness Ra of the surface 7a of the innermost layer 7 is 0.05 ?m to 1 ?m. It can provide a packaging material for a power storage device which is excellent in formability and hard to generate white powder on the surface.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: November 24, 2020
    Assignee: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Kenji Yoshino, Makoto Karatsu
  • Publication number: 20200215795
    Abstract: Provided is a molding packaging material capable of sealing without causing sealing failure, significantly reducing cleaning frequency of a seal bar to improve productivity, and preventing occurrence of delamination. The molding packaging material includes a PBT terephthalate (PBT) layer 2, a heat fusible resin layer 3, and a metal foil layer 4 between the two layers. The PBT layer 2 and the metal foil layer 4 are bonded via an outer adhesive layer 5. The outer adhesive layer 5 is formed of a urethane adhesive cured film composed of a polyester polyol, a polyfunctional isocyanate compound, and polyhydric alcohol. The polyester polyol contains a dicarboxylic acid component, the dicarboxylic acid component includes an aromatic dicarboxylic acid. The dicarboxylic acid component contains an aromatic dicarboxylic acid. The content rate of the aromatic dicarboxylic acid in the dicarboxylic acid component is 40 mol % to 80 mol %. The Young's modulus of the cured film of the urethane adhesive is 70 MPa to 400 MPa.
    Type: Application
    Filed: June 28, 2018
    Publication date: July 9, 2020
    Applicant: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Kenji YOSHINO, Yuji MINAMIBORI, Katsumi TANAKA
  • Patent number: 10290840
    Abstract: A battery packaging material includes a stretched heat-resistant resin film layer as an outer layer which is laminated and integrated on one surface of an aluminum foil layer through a first adhesive layer; and a non-stretched thermoplastic resin film layer which is laminated and integrated as an inner layer on the other surface of the aluminum foil layer through a second adhesive layer, in which the second adhesive layer is an adhesive layer which is formed by a dry lamination method and whose melting point is 60° C. to 100° C., the adhesion strength of the inner layer and the aluminum foil layer is 3.0 N/15 mm width or more at 80° C., and the adhesion strength is 2.0 N/15 mm width or less at 120° C.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: May 14, 2019
    Assignee: Showa Denko Packaging Co., Ltd.
    Inventor: Kenji Yoshino
  • Publication number: 20190140222
    Abstract: A packaging film is formed by a laminated film including a plurality of layers, and is configured to be bent into a tube-shape to form a tube-type packaging member having flexibility. Further, the packaging film includes an innermost layer, an outermost layer, and a barrier layer arranged between innermost layer and the outermost layer, as the plurality of layers. The barrier layer is a metallic layer. The innermost layer and the outermost layer are each formed by a thermal fusion resin layer. An adhesive agent bonding overlapped adjacent layers of the plurality of layers has electrolyte resistance.
    Type: Application
    Filed: January 3, 2019
    Publication date: May 9, 2019
    Inventor: Kenji YOSHINO
  • Publication number: 20190084206
    Abstract: A void-containing polyester is disclosed which is excellent in concealing properties, whiteness, and thermal dimensional stability. A void-containing polyester film includes an internal void-containing layer (layer A). The void-containing layer contains a polyester matrix resin and a polypropylene dispersed resin, and satisfies the following requirements (1) to (3), and an apparent density of the film is in a range of 0.8 to 1.2 g/cm3. (1) A melt viscosity (?1) of the polyester resin at a melting temperature of 280° C. and a shear rate of 121.6 sec?1 is 90 to 400 Pa·s (2) A melt viscosity (?2) of the polypropylene resin at a melting temperature of 280° C. and a shear rate of 121.6 sec?1 is 300 to 850 Pa·s (3) A melt viscosity ratio (?2/?1) of the polyester resin and the polypropylene resin at a melting temperature of 280° C. and a shear rate of 121.6 sec?1 is 1.5 to 4.
    Type: Application
    Filed: March 22, 2017
    Publication date: March 21, 2019
    Applicant: TOYOBO CO., LTD.
    Inventors: Shoji Deguchi, Kenji Yoshino
  • Patent number: 10066120
    Abstract: A urethane composition is disclosed for a coating film waterproof material which does not contain any of specific chemical substances, has work efficiency that is the same as that of a general-purpose highly extensible urethane coating film waterproof material, an elongation rate of a highly extensible urethane coating film waterproof material, and strength of a high-strength urethane coating film waterproof material, has no decrease in weather resistance of a top coat resulting from a plasticizer, and is suitable for a non-bleeding type of coating by hand that is not affected by migration of a low fraction of asphalt.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: September 4, 2018
    Assignee: DYFLEX CORPORATION
    Inventors: Kenji Yoshino, Yoichi Kai
  • Publication number: 20180123093
    Abstract: A packaging material for a power storage device includes a heat resistant resin layer 2 as an outer layer, a sealant layer 3 as an inner layer, and a metal foil layer 4 arranged between these layers. The sealant layer 3 is composed of one layer or a plurality of layers. The innermost layer 7 of the sealant layer contains a random copolymer containing propylene as a copolymerization component and another copolymerization component other than propylene, a roughening material, and a lubricant. The roughening material is composed of particles containing a thermoplastic resin. The center line average roughness Ra of the surface 7a of the innermost layer 7 is 0.05 ?m to 1 ?m. It can provide a packaging material for a power storage device which is excellent in formability and hard to generate white powder on the surface.
    Type: Application
    Filed: October 31, 2017
    Publication date: May 3, 2018
    Applicant: SHOWA DENKO PACKAGING CO., LTD.
    Inventors: Kenji YOSHINO, Makoto KARATSU
  • Patent number: 9890285
    Abstract: An asphalt-urethane composition is disclosed which does not contain any of specific chemical substances, has adhesiveness to mineral-surfaced asphalt roofing and an asphalt groundwork, exhibits performance in temporary waterproofing with respect to the asphalt groundwork, performs adhesion of sand to the surface layer of the mineral-surfaced asphalt roofing and adjustment of irregularity, has adhesiveness of integrating with a urethane waterproof layer applied thereon, has excellent workability, construction efficiency, water resistance, and hot water resistance, has high strength and elasticity, has low temperature sensitivity, and has excellent finish properties. The asphalt-urethane composition can contain at least a component (A) obtained by adding an MDI prepolymer generated by reacting polyolefin polyol having two or more hydroxyl groups, short-chain polyhydric alcohol, and a monomer of MDI, a monomer of MDI, and a solvent a; and a component (B) including asphalt, a catalyst, and a solvent b.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: February 13, 2018
    Assignee: DYFLEX CORPORATION
    Inventors: Kenji Yoshino, Yoichi Kai
  • Patent number: 9425449
    Abstract: An outer packaging material for a battery includes a heat resistant stretched resin film layer as an outer layer integrally laminated on one of surfaces of an aluminum foil layer via a first adhesive layer. A thermoplastic unstretched resin film layer as an inner layer is integrally laminated on the other surface of the aluminum foil layer via a second adhesive layer. An adhesive strength between the inner layer and the aluminum foil layer is 4N/15 mm-width to 30N/15 mm-width, and an adhesive strength between the outer layer and the aluminum foil layer is 2N/15 mm-width to 14N/15 mm-width. As a thermoplastic unstretched resin film constituting the inner layer, a thermoplastic unstretched resin film having a sealing strength of two sheets of the thermoplastic unstretched resin films arranged one on the other and heat sealed exceeding 30N/15 mm-width but not exceeding 110N/15 mm-width is used.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: August 23, 2016
    Assignee: Showa Denko Packaging Co., Ltd.
    Inventor: Kenji Yoshino
  • Publication number: 20160096976
    Abstract: A urethane composition is disclosed for a coating film waterproof material which does not contain any of specific chemical substances, has work efficiency that is the same as that of a general-purpose highly extensible urethane coating film waterproof material, an elongation rate of a highly extensible urethane coating film waterproof material, and strength of a high-strength urethane coating film waterproof material, has no decrease in weather resistance of a top coat resulting from a plasticizer, and is suitable for a non-bleeding type of coating by hand that is not affected by migration of a low fraction of asphalt.
    Type: Application
    Filed: May 23, 2014
    Publication date: April 7, 2016
    Applicant: DYFLEX CORPORATION
    Inventors: Kenji YOSHINO, Yoichi KAI
  • Publication number: 20160093840
    Abstract: A packaging film is formed by a laminated film including a plurality of layers, and is configured to be bent into a tube-shape to form a tube-type packaging member having flexibility. Further, the packaging film includes an innermost layer, an outermost layer, and a barrier layer arranged between innermost layer and the outermost layer, as the plurality of layers. The barrier layer is a metallic layer. The innermost layer and the outermost layer are each formed by a thermal fusion resin layer. An adhesive agent bonding overlapped adjacent layers of the plurality of layers has electrolyte resistance.
    Type: Application
    Filed: September 22, 2015
    Publication date: March 31, 2016
    Inventor: Kenji YOSHINO
  • Publication number: 20160083585
    Abstract: An asphalt-urethane composition is disclosed which does not contain any of specific chemical substances, has adhesiveness to mineral-surfaced asphalt roofing and an asphalt groundwork, exhibits performance in temporary waterproofing with respect to the asphalt groundwork, performs adhesion of sand to the surface layer of the mineral-surfaced asphalt roofing and adjustment of irregularity, has adhesiveness of integrating with a urethane waterproof layer applied thereon, has excellent workability, construction efficiency, water resistance, and hot water resistance, has high strength and elasticity, has low temperature sensitivity, and has excellent finish properties. The asphalt-urethane composition can contain at least a component (A) obtained by adding an MDI prepolymer generated by reacting polyolefin polyol having two or more hydroxyl groups, short-chain polyhydric alcohol, and a monomer of MDI, a monomer of MDI, and a solvent a; and a component (B) including asphalt, a catalyst, and a solvent b.
    Type: Application
    Filed: May 23, 2014
    Publication date: March 24, 2016
    Applicant: DYFLEX CORPORATION
    Inventors: Kenji YOSHINO, Yoichi KAI