Patents by Inventor Takatoshi Muta

Takatoshi Muta 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: 20210040318
    Abstract: The present invention relates to a polyamide-based 3D printer material containing a resin composition (C), in which the resin composition (C) contains a crystalline polyamide-based resin (A) and an amorphous polyamide-based resin (B), and a heat quantity of crystallization of the resin composition (C) in differential scanning calorimetry is 5 to 60 J/g.
    Type: Application
    Filed: October 23, 2020
    Publication date: February 11, 2021
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Akiko HIRANO, Kouichirou Taniguchi, Takatoshi Muta
  • Publication number: 20180083247
    Abstract: A multilayer porous film having excellent air permeability, a capability of being formed with high stability and high efficiency, enhanced ionic permeability, and a low electric resistance is provided. The film includes at least two layers that are a porous layer (layer I) including a polypropylene resin (A) as a main component and a heat-resistant layer (layer II) including a resin composition (II), the resin composition (II) including a polypropylene resin (A), inorganic particles (B), and a vinyl aromatic elastomer (C), the vinyl aromatic elastomer (C) having a melt flow rate (MFR) of 1 g/10 min or less as determined at 230° C. with a load of 2.16 kg.
    Type: Application
    Filed: April 1, 2016
    Publication date: March 22, 2018
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Masayuki SEO, Hiroto YAMADA, Takatoshi MUTA, Tomoyuki NEMOTO
  • Patent number: 9840067
    Abstract: A heat-shrinkable laminated film having: (A) layer mainly having a polyester series resin; (C) layer mainly having a polystyrene series resin or mixture of polyester series and polystyrene series resins; and (B) layer mainly having polyester series and polystyrene series resins and disposed between (A) and (C) layers, the film having excellent heat-shrinkability, transparency, and interlayer-adhesiveness at room temperature, not easily peeled in a high-temperature treatment, inhibited from whitening when bent during processing, and suitable for shrinkage-packaging, shrink-bond-packaging, etc., with (B) layer having: a hard polyester series resin or mixture of hard polyester series and soft polyester series resins; and soft styrene series resin, hard styrene series resin, or mixture thereof, or with a content of the (B) layer polyester series resin smaller than that of the (A) layer one, and a content of the (C) layer polyester series resin smaller than that of the (B) layer one.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: December 12, 2017
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Takatoshi Muta, Tomoyuki Nemoto, Jun Takagi, Kanako Hayashi
  • Patent number: 9115277
    Abstract: The purpose is to provide a porous polyolefin resin film which has high gas permeability and a high porosity, and which can exhibit excellent properties including break down properties when used as a separator for a non-aqueous electrolyte secondary battery. The present invention relates to a porous polyolefin resin film which is produced from a resin composition (a) containing a polyolefin resin as the main component and additionally containing organic-inorganic hybrid particles (f).
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: August 25, 2015
    Assignee: Mitsubishi Plastics, Inc.
    Inventors: Yoshihito Takagi, Takatoshi Muta, Tomoyuki Nemoto
  • Publication number: 20130236793
    Abstract: The purpose is to provide a porous polyolefin resin film which has high gas permeability and a high porosity, and which can exhibit excellent properties including break down properties when used as a separator for a non-aqueous electrolyte secondary battery. The present invention relates to a porous polyolefin resin film which is produced from a resin composition (a) containing a polyolefin resin as the main component and additionally containing organic-inorganic hybrid particles (f).
    Type: Application
    Filed: October 5, 2011
    Publication date: September 12, 2013
    Applicant: Mitsubishi Plastics, Inc.
    Inventors: Yoshihito Takagi, Takatoshi Muta, Tomoyuki Nemoto
  • Publication number: 20130224412
    Abstract: A heat-shrinkable laminated film having: (A) layer mainly having a polyester series resin; (C) layer mainly having a polystyrene series resin or mixture of polyester series and polystyrene series resins; and (B) layer mainly having polyester series and polystyrene series resins and disposed between (A) and (C) layers, the film having excellent heat-shrinkability, transparency, and interlayer-adhesiveness at room temperature, not easily peeled in a high-temperature treatment, inhibited from whitening when bent during processing, and suitable for shrinkage-packaging, shrink-bond-packaging, etc., with (B) layer having: a hard polyester series resin or mixture of hard polyester series and soft polyester series resins; and soft styrene series resin, hard styrene series resin, or mixture thereof, or with a content of the (B) layer polyester series resin smaller than that of the (A) layer one, and a content of the (C) layer polyester series resin smaller than that of the (B) layer one.
    Type: Application
    Filed: November 24, 2010
    Publication date: August 29, 2013
    Applicant: MITSUBISHI PLASTICS, INC.
    Inventors: Takatoshi Muta, Tomoyuki Nemoto, Jun Takagi, Kanako Hayashi
  • Patent number: 8420193
    Abstract: A heat-shrinkable film having a layer made of a mixed resin containing a polylactic acid resin and a polyolefin resin as the main components, wherein the mass ratio of the polylactic acid resin and the polyolefin resin is 95/5 to 50/50, the polylactic acid resin is a copolymer of D-lactic acid and L-lactic acid or a mixed resin of the copolymer, the D/L ratio of D-lactic acid and L-lactic acid is 3/97 to 15/85 or 85/15 to 97/3, the storage elastic modulus of the polyolefin resin or the soft acrylic resin at 20° C. is ?100 MPa as measured at an oscillation frequency of 10 Hz and a strain of 0.1%, the film is stretched in at least one direction, and the heat shrinkage ratio of the film in the main shrinking direction is ?20% as measured after the film is immersed in 80° C. water for 10 seconds.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: April 16, 2013
    Assignee: Mitsubishi Plastics, Inc.
    Inventors: Takashi Hiruma, Takeyoshi Yamada, Takatoshi Muta
  • Publication number: 20100143623
    Abstract: The present invention provide a heat-shrinkable film consisting of a layer or comprising at least one layer, wherein the layer is made of a mixed resin containing a polylactic acid resin and a polyolefin resin as the main components, wherein mass ratio of the polylactic acid resin and the polyolefin resin is 95/5 to 50/50 by mass, the polylactic acid resin being a copolymer of D-lactic acid and L-lactic acid or a mixed resin of the copolymer, wherein D/L ratio of D-lactic acid and L-lactic acid is 3/97 to 15/85 or 85/15 to 97/3, the storage elastic modulus (E?) of the polyolefin resin or the soft acrylic resin at 20 degree C. being 100 MPa or less as measured at an oscillation frequency of 10 Hz and a strain of 0.1%, the film being stretched in at least one direction, and the heat shrinkage ratio of the film in the main shrinking direction being 20% or more as measured after the film is immersed in hot water of 80 degree C. for 10 seconds.
    Type: Application
    Filed: February 6, 2008
    Publication date: June 10, 2010
    Applicant: MITSUBISHI PLASTICS, INC.
    Inventors: Takashi Hiruma, Takeyoshi Yamada, Takatoshi Muta