Patents by Inventor Shigenobu Yoshida

Shigenobu Yoshida 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: 9650191
    Abstract: Such a vapor-deposited barrier film is provided that has a vapor-deposited layer having uniform film quality, a high film density and high barrier performance in the initial stage. The vapor-deposited barrier film contains a substrate having on at least one surface thereof at least one layer of a vapor-deposited layer (a). The vapor-deposited layer (a) contains a metal oxide, has a thickness of from 10 to 500 nm, and has an average value of an elemental ratio of oxygen (O) and the metal (oxygen (O)/metal) of 1.20 or more and 1.90 or less and a difference between the maximum value and the minimum value of the (oxygen (O)/metal) of 0.35 or less on analysis of the vapor-deposited layer in the depth direction thereof by an X-ray photoelectron spectroscopy (ESCA) method.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: May 16, 2017
    Assignee: MITSUBISHI PLASTICS, INC.
    Inventors: Shigeto Kimura, Tooru Hachisuka, Koji Yamauchi, Shigenobu Yoshida
  • Patent number: 8658278
    Abstract: Provided is a film which can be industrially coated easily and exhibits excellent gas barrier performance without being subjected to a high-temperature heat treatment. The film exhibits good gas barrier performance immediately after the production, and maintains the excellent gas barrier performance while exhibiting excellent hot water resistance and printing resistance.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: February 25, 2014
    Assignee: Mitsubishi Plastics, Inc.
    Inventors: Chiharu Okawara, Shigenobu Yoshida, Tooru Hachisuka, Motoyoshi Takemura
  • Publication number: 20140030510
    Abstract: Such a vapor-deposited barrier film is provided that has a vapor-deposited layer having uniform film quality, a high film density and high barrier performance in the initial stage. The vapor-deposited barrier film contains a substrate having on at least one surface thereof at least one layer of a vapor-deposited layer (a). The vapor-deposited layer (a) contains a metal oxide, has a thickness of from 10 to 500 nm, and has an average value of an elemental ratio of oxygen (O) and the metal (oxygen (O)/metal) of 1.20 or more and 1.90 or less and a difference between the maximum value and the minimum value of the (oxygen (O)/metal) of 0.35 or less on analysis of the vapor-deposited layer in the depth direction thereof by an X-ray photoelectron spectroscopy (ESCA) method.
    Type: Application
    Filed: March 29, 2012
    Publication date: January 30, 2014
    Applicant: Mitsubishi Plastics, Inc.
    Inventors: Shigeto Kimura, Tooru Hachisuka, Koji Yamauchi, Shigenobu Yoshida
  • Publication number: 20140017468
    Abstract: A film which can be industrially coated easily and exhibits excellent gas barrier performance without being subjected to a high-temperature heat treatment, good gas barrier performance immediately after the production, and maintains the excellent gas barrier performance while exhibiting excellent hot water resistance and printing resistance; a gas barrier laminated film including a resin layer on an inorganic thin film formed on at least one surface of a support film, the resin layer being formed by applying: (1) an aqueous dispersion containing polyvinyl alcohol (a), an ethylene-unsaturated carboxylic acid copolymer (b), and inorganic particles (c); (2) an aqueous dispersion containing an ethylene-unsaturated carboxylic acid copolymer (b), inorganic particles (c), and/or a cross-linking agent (d); or (3) an aqueous dispersion containing polyvinyl alcohol (a), an ethylene-unsaturated carboxylic acid copolymer (b), inorganic particles (c), and cross-linking agent (d), to the inorganic thin film surface; and a
    Type: Application
    Filed: September 17, 2013
    Publication date: January 16, 2014
    Applicant: MITSUBISHI PLASTICS, INC.
    Inventors: Chiharu OKAWARA, Shigenobu Yoshida, Tooru Hachisuka, Motoyoshi Takemura
  • Publication number: 20130323436
    Abstract: Provided are a method for producing a film, which is satisfactory in productivity, exhibits high gas-barrier property immediately after production, and has excellent adhesive strength between constituent layers while maintaining the excellent gas-barrier property, and a gas-barrier film, which is obtained by the method. The method for producing a gas-barrier film includes the steps of: (1) forming an inorganic thin film by a vacuum deposition method on at least one surface of a base film; (2) forming a thin film by a plasma CVD method on the inorganic thin film formed in the step (1); and (3) forming an inorganic thin film by the vacuum deposition method on the thin film formed in the step (2), in which each of the steps (1) and (3), and the step (2) are sequentially carried out at a pressure of 1×10?7 to 1 Pa, and at a pressure of 1×10?3 to 1×102 Pa, respectively.
    Type: Application
    Filed: August 9, 2013
    Publication date: December 5, 2013
    Applicant: MITSUBISHI PLASTICS, INC.
    Inventors: Shigenobu YOSHIDA, Chiharu Okawara, Kota Ozeki
  • Patent number: 8586181
    Abstract: Provided is a protective sheet for a solar cell module having a resin sheet, a vapor deposited layer containing an inorganic oxide provided on at least one side thereof, and a fluorine resin layer containing a silane coupling agent laminated on the vapor deposited layer.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: November 19, 2013
    Assignees: Lintec Corporation, Mitsubishi Plastics, Inc.
    Inventors: Yasunari Takanashi, Chiharu Okawara, Shigenobu Yoshida
  • Publication number: 20130295359
    Abstract: Provided are a gas-barrier laminate film which shows good productivity, has high transparency, exhibits high-level gas-barrier properties and has excellent adhesion strength between the constituent layers therein, and which curls little; and a method for producing the film. The gas-barrier laminate film has, on at least one surface of a substrate film thereof, an inorganic thin layer formed by a vacuum vapor deposition, an inorganic thin layer formed by a chemical vapor deposition, and an inorganic thin layer formed by a vacuum vapor deposition in that order thereon, wherein the thickness of the inorganic thin layer formed by vacuum vapor deposition is from 0.1 nm to 500 nm, and the carbon content in the inorganic thin layer formed by chemical vapor deposition is from 0.5 at % to less than 20 at %, and the thickness of the layer is less than 20 nm.
    Type: Application
    Filed: November 2, 2011
    Publication date: November 7, 2013
    Applicant: Mitsubishi Plastics, Inc.
    Inventors: Koji Yamauchi, Shigenobu Yoshida, Tooru Hachisuka, Shigeto Kimura
  • Patent number: 8568868
    Abstract: Disclosed is a gas-barrier film laminate having at least two gas-barrier film layers laminated via an adhesive layer, wherein the gas-barrier film layer has a substrate film, and at least one constitutive unit layer comprising an anchor coat layer and an inorganic thin film layer formed on at least one surface of the substrate film in that order, and wherein the number of the bubbles having a diameter of at least 0.5 mm and the impurities having a diameter of at least 0.5 mm existing between the gas-barrier film layers is at most 3 in total per 100 cm2.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: October 29, 2013
    Assignee: Mitsubishi Plastics, Inc.
    Inventors: Tsutomu Matsui, Shigenobu Yoshida
  • Patent number: 8343623
    Abstract: Disclosed is a gas-barrier film laminate having at least two gas-barrier film layers laminated via an adhesive layer, wherein the gas-barrier film layer has a substrate film, and at least one constitutive unit layer comprising an anchor coat layer and an inorganic thin film layer formed on at least one surface of the substrate film in that order, and wherein the number of the bubbles having a diameter of at least 0.5 mm and the impurities having a diameter of at least 0.5 mm existing between the gas-barrier film layers is at most 3 in total per 100 cm2.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: January 1, 2013
    Assignee: Mitsubishi Plastics, Inc.
    Inventors: Tsutomu Matsui, Shigenobu Yoshida
  • Publication number: 20120315462
    Abstract: Disclosed is a gas-barrier film laminate having at least two gas-barrier film layers laminated via an adhesive layer, wherein the gas-barrier film layer has a substrate film, and at least one constitutive unit layer comprising an anchor coat layer and an inorganic thin film layer formed on at least one surface of the substrate film in that order, and wherein the number of the bubbles having a diameter of at least 0.5 mm and the impurities having a diameter of at least 0.5 mm existing between the gas-barrier film layers is at most 3 in total per 100 cm2.
    Type: Application
    Filed: August 24, 2012
    Publication date: December 13, 2012
    Applicant: MITSUBISHI PLASTICS, INC.
    Inventors: Tsutomu Matsui, Shigenobu Yoshida
  • Publication number: 20120125437
    Abstract: A solar cell module including a thin-film solar cell element protected with a novel gas barrier film is provided. The solar cell module includes a laminate obtained by laminating a gas barrier film on a layer including at least a solar cell element. The gas barrier film is obtained by laminating at least a substrate film, weather-resistant coating layer, and inorganic thin film layer. The weather-resistant coating layer is made of at least one of (a) a material obtained by crosslinking modified polyvinyl alcohol, (b) a material obtained by crosslinking polycaprolactone polyol and/or a material obtained by crosslinking polycarbonate polyol, and (c) an acrylic polymer having at least one group selected from the group consisting of an UV-stabilizing group, UV-absorbing group, and cycloalkyl group. The solar cell element is a thin-film solar cell element.
    Type: Application
    Filed: January 30, 2012
    Publication date: May 24, 2012
    Applicants: MITSUBISHI CHEMICAL CORPORATION, MITSUBISHI PLASTICS, INC.
    Inventors: Chiharu OKAWARA, Shigenobu Yoshida, Tooru Hachisuka, Hiromu Watanabe
  • Publication number: 20120097220
    Abstract: Provided are a sheet for a solar cell of a monolayer construction or a multilayer construction based on a polyphenylene ether-based resin layer formed of a resin composition using a polyphenylene ether as a main component, which has excellent durability, excellent flame retardancy, excellent dimensional stability and high adhesiveness with a encapsulating resin layer or the like, and a solar cell module obtained by providing the sheet for a solar cell.
    Type: Application
    Filed: April 28, 2010
    Publication date: April 26, 2012
    Applicant: MITSUBISHI PLASTICS, INC.
    Inventors: Yo Miyashita, Jun Nishioka, Kouichirou Taniguchi, Chiharu Okawara, Shigenobu Yoshida, Michiko Otsuka, Kazuhiko Kitayama
  • Publication number: 20120094131
    Abstract: Provided is a protective sheet for a solar cell module having a resin sheet, a vapor deposited layer containing an inorganic oxide provided on at least one side thereof, and a fluorine resin layer containing a silane coupling agent laminated on the vapor deposited layer.
    Type: Application
    Filed: July 8, 2010
    Publication date: April 19, 2012
    Applicants: Mitsubishi Plastics, Inc., Lintec Corporation
    Inventors: Yasunari Takanashi, Chlharu Okawara, Shigenobu Yoshida
  • Patent number: 8124236
    Abstract: The present invention relates to a gas-barrier laminate for hydrothermal treatment which comprises a base plastic film, a coating layer formed on at least one surface of the base plastic film, an inorganic thin film formed on a surface of the coating layer which is made of a metal compound, and a heat-sealable plastic film laminated on the inorganic thin film or the base plastic film, wherein the inorganic thin film before laminating the heat-sealable plastic film thereon has a rubbing strength of not less than 20 times as measured under a load of 70 g, and the coating layer has a hardness of 0.15 to 0.40 GPa. The laminate of the present invention is excellent in interlaminar bonding property, hardly undergoes breakage of the inorganic thin film owing to the hydrothermal treatment, and can maintain an excellent gas-barrier property even after subjected to the hydrothermal treatment.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: February 28, 2012
    Assignee: Mitsubishi Plastics, Inc.
    Inventors: Chiharu Okawara, Shigenobu Yoshida, Tooru Hachisuka
  • Patent number: 8092917
    Abstract: A gas-barrier laminate comprises a plastic substrate (A), an inorganic thin film (B) formed on at least one surface of the plastic substrate (A), and a polyester-based resin layer (C) formed by applying a coating material containing a polyester-based resin on a surface of the inorganic thin film (B), wherein the polyester-based resin has a glass transition temperature of 50 to 70° C., a molecular weight of 1500 to 15000 and a hydroxyl value of 10 to 60 mg KOH/g, and the gas-barrier laminate has an oxygen permeability of not more than 5 cc/m2/day/atm and a water vapor permeability of not more than 5 g/m2/day.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: January 10, 2012
    Assignee: Mitsubishi Plastics, Inc.
    Inventors: Shigenobu Yoshida, Tooru Hachisuka, Chiharu Okawara
  • Publication number: 20120003500
    Abstract: Provided are a method for producing a film, which is satisfactory in productivity, exhibits high gas-barrier property immediately after production, and has excellent adhesive strength between constituent layers while maintaining the excellent gas-barrier property, and a gas-barrier film, which is obtained by the method. The method for producing a gas-barrier film includes the steps of; (1) forming an inorganic thin film by a vacuum deposition method on at least one surface of a base film; (2) forming a thin film by a plasma CVD method on the inorganic thin film formed in the step (1); and (3) forming an inorganic thin film by the vacuum deposition method on the thin film formed in the step (2), in which each of the steps (1) and (3), and the step (2) are sequentially carried out at a pressure of 1×10?7 to 1 Pa, and at a pressure of 1×10?3 to 1×102 Pa, respectively.
    Type: Application
    Filed: February 15, 2010
    Publication date: January 5, 2012
    Applicant: MITSUBISHI PLASTICS, INC.
    Inventors: Shigenobu Yoshida, Chiharu Okawara, Kota Ozeki
  • Publication number: 20110220169
    Abstract: Provided is a back sheet for a solar battery which holds an excellent gas barriering property and which is excellent in a weatherability and a light shielding property. It is a back sheet for a solar battery comprising a light shielding polyolefin base resin colored layer and a weather resistant polyester base resin layer and comprising a gas barriering layer containing a weather resistant coating layer and an inorganic thin film layer provided between the above layers, wherein the weather resistant coating layer comprises at least one selected from (a) a cross-linked product of polycaprolactonepolyol and/or polycarbonatepolyol, (b) a cross-linked product of modified polyvinyl alcohol and (c) an acryl base copolymer having at least one group selected from the group consisting of a UV ray stabilizing group, a UV ray absorbing group and a cycloalkyl group.
    Type: Application
    Filed: July 8, 2009
    Publication date: September 15, 2011
    Applicant: Mitsubishi Plastics, Inc.
    Inventors: Chiharu Okawara, Shigenobu Yoshida, Yoshihiro Yamazaki
  • Publication number: 20110223419
    Abstract: Provided is a back sheet for a solar battery which holds an excellent gas barriering property and which is excellent in a weatherability and a light shielding property. It is a back sheet for a solar battery comprising a light shielding colored layer and a weather resistant polyester base resin layer and comprising a gas barriering layer containing a weather resistant coating layer and an inorganic thin film layer provided between the above layers, wherein the weather resistant coating layer comprises at least one selected from (a) a cross-linked product of polycaprolactonepolyol and/or polycarbonatepolyol, (b) a cross-linked product of modified polyvinyl alcohol and (c) an acryl base copolymer having at least one group selected from the group consisting of a UV ray stabilizing group, a UV ray absorbing group and a cycloalkyl group.
    Type: Application
    Filed: July 8, 2009
    Publication date: September 15, 2011
    Applicant: MITSUBISHI PLASTICS, INC.
    Inventors: Chiharu Okawara, Shigenobu Yoshida, Yoshihiro Yamazaki
  • Publication number: 20110129654
    Abstract: A gas-barrier laminate, containing a plastic substrate, an inorganic thin film on at least one surface of the plastic substrate, and a coating layer on a surface of the inorganic thin film is provided. The coating layer comprises at least one resin selected from the group consisting of a polyester resin, an urethane resin, an acrylic resin, an alkoxysilyl group-containing resin, an oxazoline group-containing resin and copolymer resins thereof and a hardness of the coating layer is from 0.1 to 0.5 GPa as measured at 23° C. in atmospheric air by a nano-indentation hardness testing method. When the gas-barrier laminate is further laminated on the coating layer with an unstretched polypropylene film having a thickness of 60 ?m and the further obtained laminate subjected to a hydrothermal treatment at 120° C. for 30 min, an oxygen permeability of the further laminate is not more than 50 fmol/m2/s/Pa.
    Type: Application
    Filed: February 7, 2011
    Publication date: June 2, 2011
    Applicant: MITSUBISHI PLASTICS, INC.
    Inventors: Shigenobu YOSHIDA, Chiharu Okawara, Tooru Hachisuka
  • Publication number: 20110086220
    Abstract: [Problems] A gas-barrier laminated film is provided that has considerably excellent gas-barrier property and has excellent capability for an organic device. [Means for Solution] A gas-barrier laminated film for an organic device, containing a plurality of gas-barrier laminates each containing a substrate film having on at least one surface thereof at least two layers of inorganic thin film layers, the plurality of gas-barrier laminates being laminated through an adhesive layer, wherein the at least two layers of inorganic thin film layers contain two or more inorganic thin film layers that are formed in contact with each other, the gas-barrier laminates are laminated with a surface on a side of the substrate film of the gas-barrier laminate facing a surface on a side of the inorganic thin film layer thereof, and the adhesive layer contains an epoxy adhesive having at least one of a m-xylenediamine skeleton, a p-xylenediamine skeleton and a bisphenol skeleton.
    Type: Application
    Filed: May 12, 2009
    Publication date: April 14, 2011
    Applicant: MITSUBISHI PLASTICS, INC.
    Inventors: Shigenobu Yoshida, Chiharu Okawara, Tsutomu Matsui