Patents by Inventor Kyoko Inagaki

Kyoko Inagaki 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: 11613617
    Abstract: The invention provides a multilayer film comprising a substrate film and a coating layer arranged on at least one surface of the substrate film, wherein the coating layer contains an oxazoline group and comprises an acrylic resin, the coating layer has a thickness (D) of 5-150 nm, and the ratio (Pl/P2) of the peak intensity (P1) of a peak that has an absorption maximum in a region of 1655±10 cm?1 to the peak intensity (P2) of a peak that has an absorption maximum in a range of 1580±10 cm?1 in the total reflection infrared absorption spectrum of the coating layer and the thickness (D) of the coating layer fulfill the relationship represented by the formula: 0.03?(Pl/P2)/D?0.15.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: March 28, 2023
    Assignee: TOYOBO CO., LTD.
    Inventors: Atsushi Yamazaki, Kyoko Inagaki, Takeshi Ookawa, Yoshiharu Morihara, Youji Takatsu, Masanori Kobayashi
  • Publication number: 20220410546
    Abstract: The invention provides a laminated body which contains an environmentally friendly recycled material, has a lamination constitution composed of substantially a single resin type mainly composed of polyester and having a low environmental load, and has required performances such as gas barrier properties, sealability, toughness, and transparency required for a packaging material. The laminated body is formed by laminating a polyester substrate film containing 50% by weight or more of a polyester resin recycled from PET bottles and a heat sealable resin layer in this order, wherein the substrate film is a laminated film including an inorganic thin film layer (A) and a protective layer (a) containing a urethane resin on one surface thereof, and the heat sealable resin layer is formed of a polyester-based resin mainly composed of ethylene terephthalate, and has a piercing strength of 10 N or more and a haze of 20% or less.
    Type: Application
    Filed: November 25, 2020
    Publication date: December 29, 2022
    Applicant: TOYOBO CO., LTD.
    Inventors: Atsushi YAMAZAKI, Yukihiro NUMATA, Kyoko INAGAKI, Yuya YAMAGUCHI, Shintaro ISHIMARU
  • Publication number: 20220379589
    Abstract: The present invention provides an environment-responsive laminated film including an inorganic thin film layer and a protective layer in this order on a substrate film layer using a polyester resin recycled from PET bottles. The laminated film has excellent barrier properties and adhesiveness even after a severe wet heat treatment and has less deterioration in appearance of the film even after retorting. The laminated film comprises a substrate film; an inorganic thin film layer on at least one surface of the substrate film; and a protective layer containing a urethane resin on the inorganic thin film layer, wherein (a) the substrate film contains 50% by weight or more of a polyester resin recycled from PET bottles; (b) standard deviation of a haze after retorting the laminated film at 130° C. for 30 minutes is 0.5% or less; and (c) an adhesion amount of the protective layer is 0.5 g/m2 or less.
    Type: Application
    Filed: November 10, 2020
    Publication date: December 1, 2022
    Applicant: TOYOBO CO., LTD.
    Inventors: Atsushi YAMAZAKI, Yukihiro NUMATA, Kyoko INAGAKI, Yuya YAMAGUCHI
  • Patent number: 11261307
    Abstract: The invention provides a laminated film. The laminated film includes a polyester substrate film, and a coating layer on/over at least one surface of the substrate film. The coating layer includes a resin composition including a resin having an oxazoline group. The laminated film has an inorganic thin-film layer on/over the coating layer, and a protective layer that has a urethane resin and has an adhesion amount of 0.15 to 0.60 g/m2 on/over the inorganic thin-film layer. The laminated film shows a total reflection infrared absorption spectrum having a ratio P1/P2 ranging from 1.5 to 3.5 wherein P1 is the intensity of a peak having an absorption maximum in a range of 1530±10 cm?1, and P2 is that in a range of 1410±10 cm?1. The laminated film further has an oxygen permeability of 5 ml/m2·d·MPa or less under conditions of 23° C.×65% RH.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: March 1, 2022
    Assignee: TOYOBO CO., LTD.
    Inventors: Atsushi Yamazaki, Kyoko Inagaki
  • Publication number: 20190389191
    Abstract: The invention provides a laminated film that has, when being formed as a gas-barrier laminated film provided with an inorganic thin film layer, excellent oxygen gas barrier properties and adhesion between respective layers under normal conditions and, even after being subjected to a moist heat treatment, has good adhesion even when subjected to processing such as printing or lamination The laminated film has (a) a covering layer on at least one surface of a substrate film, wherein the covering layer contains a covering layer resin composition with a resin having an oxazoline group as a constituent component, (b) an inorganic thin film layer on the covering layer, and (c) a protective layer that has a urethane resin and an arithmetic mean roughness of 0.5-2.0 nm in a 2-?m square and is on the inorganic thin film layer. The laminated film has a surface hardness of 350-700 N/mm2.
    Type: Application
    Filed: February 8, 2018
    Publication date: December 26, 2019
    Applicant: TOYOBO CO., LTD.
    Inventors: Atsushi YAMAZAKI, Kyoko INAGAKI
  • Patent number: 10457788
    Abstract: A gas-barrier multilayer film, wherein (A) a first inorganic thin film layer, (C) a gas-barrier resin composition layer, and (D) a second inorganic thin film layer are stacked in this order with or without intervention of other layers on at least one surface of a plastic film, the gas-barrier resin composition layer (C) is formed from a gas-barrier resin composition comprising (a) a gas-barrier resin including an ethylene-vinyl alcohol-based copolymer, (b) an inorganic layered compound, and (c) at least one additive selected from coupling agents and crosslinking agents, and the content of the inorganic layered compound (b) in the gas-barrier resin composition is from 0.1% by mass to 20% by mass based on 100% by mass in total of the gas-barrier resin (a), the inorganic layered compound (b), and the additive (c).
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: October 29, 2019
    Assignee: TOYO BOSEKI KABUSHIKI KAISHA
    Inventors: Yumi Tsumagari, Yoji Takatsu, Kyoko Inagaki, Takeshi Okawa, Yoshiharu Morihara, Syuusei Matsuda
  • Publication number: 20190169736
    Abstract: The present invention has been made in view of the above-mentioned conventional technical problems. That is, an object of the present invention is to provide a gas barrier film excellent in barrier properties to oxygen and water vapor, preferably excellent in water vapor barrier properties after being left to stand in a humidified environment for a prescribed period.
    Type: Application
    Filed: February 7, 2019
    Publication date: June 6, 2019
    Applicant: TOYOBO CO., LTD.
    Inventors: Sachi MURAKAMI, Kyoko INAGAKI, Kiyoshi ISEKI
  • Publication number: 20190054724
    Abstract: The invention provides a laminated film. The laminated film includes a polyester substrate film, and a coating layer on/over at least one surface of the substrate film. The coating layer includes a resin composition including a resin having an oxazoline group. The laminated film has an inorganic thin-film layer on/over the coating layer, and a protective layer that has a urethane resin and has an adhesion amount of 0.15 to 0.60 g/m2 on/over the inorganic thin-film layer. The laminated film shows a total reflection infrared absorption spectrum having a ratio P1/P2 ranging from 1.5 to 3.5 wherein P1 is the intensity of a peak having an absorption maximum in a range of 1530±10 cm?1, and P2 is that in a range of 1410±10 cm?1. The laminated film further has an oxygen permeability of 5 ml/m2·d·MPa or less under conditions of 23° C.×65% RH.
    Type: Application
    Filed: February 14, 2017
    Publication date: February 21, 2019
    Applicant: TOYOBO CO., LTD.
    Inventors: Atsushi YAMAZAKI, Kyoko INAGAKI
  • Publication number: 20150376766
    Abstract: The present invention has been made in view of the above-mentioned conventional technical problems. That is, an object of the present invention is to provide a gas barrier film excellent in barrier properties to oxygen and water vapor, preferably excellent in water vapor barrier properties after being left to stand in a humidified environment for a prescribed period.
    Type: Application
    Filed: February 14, 2014
    Publication date: December 31, 2015
    Inventors: Sachi MURAKAMI, Kyoko INAGAKI, Kiyoshi ISEKI
  • Patent number: 8697207
    Abstract: The inventive heat-shrinkable polyolefin film is high in shrinkability in the longitudinal direction that is its main shrinkage direction and excellent in finish properties after shrinkage, perforated line openability, and thermal blocking resistance. The heat-shrinkable polyolefin film is characterized by particular values with respect to hot-water heat shrinkage ratio in the longitudinal and width directions, right angle tear strength in the width direction, and heat-resistant peel strength.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: April 15, 2014
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Shigetomo Yamamoto, Yukinobu Mukoyama, Kyoko Inagaki, Kenji Kawai, Masatoshi Hashimoto, Katsuhiko Nose
  • Publication number: 20130260144
    Abstract: The invention provides a multilayer film comprising a substrate film and a coating layer arranged on at least one surface of the substrate film, wherein the coating layer contains an oxazoline group and comprises an acrylic resin, the coating layer has a thickness (D) of 5-150 nm, and the ratio (P1/P2) of the peak intensity (P1) of a peak that has an absorption maximum in a region of 1655±10 cm?1 to the peak intensity (P2) of a peak that has an absorption maximum in a range of 1580±10 cm?1 in the total reflection infrared absorption spectrum of the coating layer and the thickness (D) of the coating layer fulfill the relationship represented by the formula: 0.03?(P1/P2)/D?0.15.
    Type: Application
    Filed: November 30, 2011
    Publication date: October 3, 2013
    Applicant: TOYOBO CO., LTD.
    Inventors: Atsushi Yamazaki, Kyoko Inagaki, Takeshi Ookawa, Yoshiharu Morihara, Youji Takatsu, Masanori Kobayashi
  • Publication number: 20120270058
    Abstract: Provided is a gas-barrier multilayer film which is superior in gas-barrier properties and interlayer adhesion property, and which exhibits less deterioration in gas-barrier properties and is resistant to interlayer delamination even in prolonged exposure to a high-temperature and high-humidity environment or after a retort treatment. A gas-barrier multilayer film, wherein (A) a first inorganic thin film layer, (C) a gas-barrier resin composition layer, and (D) a second inorganic thin film layer are stacked in this order with or without intervention of other layers on at least one surface of a plastic film, the gas-barrier resin composition layer (C) is formed from a gas-barrier resin composition comprising (a) a gas-barrier resin including an ethylene-vinyl alcohol-based copolymer, (b) an inorganic layered compound, and (c) at least one additive selected from coupling agents and crosslinking agents, and the content of the inorganic layered compound (b) in the gas-barrier resin composition is from 0.
    Type: Application
    Filed: December 22, 2010
    Publication date: October 25, 2012
    Applicant: TOYO BOSEKI KABUSHIKI KAISHA
    Inventors: Yumi Tsumagari, Yoji Takatsu, Kyoko Inagaki, Takeshi Okawa, Yoshiharu Morihara, Syuusei Matsuda
  • Patent number: 7960028
    Abstract: A heat-shrinkable polyester type film has a dynamic friction coefficient of at least one face with one face of another film of ?d?0.27 and range R?0.05 and a weight loss of less than 0.24 g/m2 after 10 reciprocation times with 400 g load using a color fastness rubbing tester comprising a friction element bearing a sand paper with #1000 particle diameter.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: June 14, 2011
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Kyoko Inagaki, Satoshi Hayakawa, Masatoshi Hashimoto, Norimi Tabota, Naonobu Oda
  • Publication number: 20100093965
    Abstract: The inventive heat-shrinkable polyolefin film is high in shrinkability in the longitudinal direction that is its main shrinkage direction and excellent in finish properties after shrinkage, perforated line openability, and thermal blocking resistance. The heat-shrinkable polyolefin film is characterized by particular values with respect to hot-water heat shrinkage ratio in the longitudinal and width directions, right angle tear strength in the width direction, and heat-resistant peel strength.
    Type: Application
    Filed: December 19, 2007
    Publication date: April 15, 2010
    Applicant: TOYO BOSEKI KABUSHIKI KAISHA
    Inventors: Shigetomo Yamamoto, Yukinobu Mukoyama, Kyoko Inagaki, Kenji Kawai, Masatoshi Hashimoto, Katsuhiko Nose
  • Patent number: 7638203
    Abstract: To provide a heat shrinkable film that, when used as a label of beverage container, enhances the smoothness of external surface side to thereby prevent merchandise jamming in an automatic vending machine of beverage and that is fully satisfactory in solvent bonding capability and excels in processability. There is provided a heat shrinkable polyester film characterized in that (A) at least one major surface thereof is overlaid with 0.002 to 0.5 g/m2, in terms of solid content coating amount of a silicone containing easily slipping layer, (B) a friction coefficient between one and the same easily-slipping layer satisfies a relationship of ?d?0.27, and that (C) the heat shrinkable polyester film exhibits a heat shrinkage percentage of not less than 50% in a maximum shrinkage direction, after immersion in hot water at 95° C. for 10 seconds.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: December 29, 2009
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Kyoko Inagaki, Satoshi Hayakawa, Norimi Tabota, Naonobu Oda
  • Publication number: 20070071967
    Abstract: [PROBLEMS]To provide a heat shrinkable film that, when used as a label of beverage container, enhances the smoothness of external surface side to thereby prevent merchandise jamming in an automatic vending machine of beverage and that is fully satisfactory in solvent bonding capability and excels in processability. [MEANS FOR SOLVING PROBLEMS] There is provided a heat shrinkable polyester film characterized in that (A) at least one major surface thereof is overlaid with 0.002 to 0.5 g/m2, in terms of solid content coating amount of a silicone containing easily slipping layer, (B) a friction coefficient between one and the same easily-slipping layer satisfies a relationship of ?d?0.27, and that (C) the heat shrinkable polyester film exhibits a heat shrinkage percentage of not less than 50% in a maximum shrinkage direction, after immersion in hot water at 95° C. for 10 seconds.
    Type: Application
    Filed: December 10, 2004
    Publication date: March 29, 2007
    Inventors: Kyoko Inagaki, Satoshi Hayakawa, Norimi Tabota, Naonobu Oda
  • Publication number: 20060063008
    Abstract: A heat-shrinkable polyester type film has a dynamic friction coefficient of at least one face with one face of another film of ?d?0.27 and range R?0.05 and a weight loss of less than 0.24 g/m2 after 10 reciprocation times with 400 g load using a color fastness rubbing tester comprising a friction element bearing a sand paper with #1000 particle diameter.
    Type: Application
    Filed: December 24, 2003
    Publication date: March 23, 2006
    Inventors: Kyoko Inagaki, Satoshi Hayakawa, Masatoshi Hashimoto, Norimi Tabota, Naonobu Oda