Patents by Inventor Yoshiyasu Naito

Yoshiyasu Naito 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: 10179853
    Abstract: [Problem] To provide a material for fused-deposition-type three-dimensional modeling whereby a warp-free modeled object is obtained without devising a modeling shape and without installing a special apparatus as a 3D printer device, and whereby a modeled article having flexibility as well as excellent surface polishing properties is obtained. [Solution] A material for fused-deposition-type three-dimensional modeling, obtained by blending 10-900 parts by weight of a styrene-based resin (B1) obtained by copolymerization of an aromatic vinyl-monomer (b1) and a cyanated vinyl-monomer (b2), and/or 5-400 parts by weight of a thermoplastic resin (B2) having a glass transition temperature of 20° C. or lower and/or 5-30 parts by weight of a plasticizer (B3), with respect to 100 parts by weight of a polylactic resin (A).
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: January 15, 2019
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Yoshiyasu Naito, Taeko Nito, Masanori Kobayashi, Takayuki Hase, Katsuya Ogawa
  • Publication number: 20170218196
    Abstract: The present invention provides a winding core which is lightweight, and which has an excellent dimensional accuracy and deflection reducing property in a long length product. Provided is a winding core obtained by molding a resin composition comprising: at least one type of amorphous resin (A) selected from a styrene resin, a polycarbonate, a polyarylate, a polyphenylene oxide and a polysulfone; a polylactic acid (B); and an inorganic filler; wherein the resin composition includes: from 50 to 80 parts by mass of the amorphous resin (A), and from 20 to 50 parts by mass of the polylactic acid resin (B) (wherein the total amount of the amorphous resin (A) and the polylactic acid (B) is 100 parts by mass). Preferably, the winding core further includes from 10 to 40 parts by mass of the inorganic filler (C).
    Type: Application
    Filed: August 26, 2015
    Publication date: August 3, 2017
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Yoshiyasu NAITO, Takeshi NISHI, Taeko NITO, Koji TACHIKAWA
  • Patent number: 9701820
    Abstract: A natural rubber-containing thermoplastic resin composition includes a graft copolymer (A) obtained by graft-polymerizing a vinyl monomer mixture (a) including at least an aromatic vinyl monomer to a rubbery polymer (R) composed of 10 to 70% by mass of a natural rubber having a weight average particle size of 0.3 to 1.2 ?m and 30 to 90% by mass of a synthetic rubber having a weight-average particle size of 0.2 to 0.4 ?m, wherein particles of the natural rubber include not less than 5% by mass of natural rubber articles with a size of 1.0 ?m or larger; and particles of the rubbery polymer (R) with a size of 1.0 ?m or larger have an internal graft ratio of 20% or higher.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: July 11, 2017
    Assignees: Toray Industries, Inc., Toray Plastics (Malaysia) Sdn. Bhd.
    Inventors: Takuya Shibata, Masafumi Koyama, Takamasa Owaki, Nobuaki Shirakawa, Yoshiyasu Naito, Akira Saito, Tadakatsu Takasaki, Kosuke Shirotani, Takashi Ueda, Akira Morito
  • Publication number: 20160177078
    Abstract: [Problem] To provide a material for fused-deposition-type three-dimensional modeling whereby a warp-free modeled object is obtained without devising a modeling shape and without installing a special apparatus as a 3D printer device, and whereby a modeled article having flexibility as well as excellent surface polishing properties is obtained. [Solution] A material for fused-deposition-type three-dimensional modeling, obtained by blending 10-900 parts by weight of a styrene-based resin (B1) obtained by copolymerization of an aromatic vinyl-monomer (b1) and a cyanated vinyl-monomer (b2), and/or 5-400 parts by weight of a thermoplastic resin (B2) having a glass transition temperature of 20° C. or lower and/or 5-30 parts by weight of a plasticizer (B3), with respect to 100 parts by weight of a polylactic resin (A).
    Type: Application
    Filed: September 9, 2014
    Publication date: June 23, 2016
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Yoshiyasu NAITO, Taeko NITO, Masanori KOBAYASHI, Takayuki HASE, Katsuya OGAWA
  • Publication number: 20150247026
    Abstract: A natural rubber-containing thermoplastic resin composition includes a graft copolymer (A) obtained by graft-polymerizing a vinyl monomer mixture (a) including at least an aromatic vinyl monomer to a rubbery polymer (R) composed of 10 to 70% by mass of a natural rubber having a weight average particle size of 0.3 to 1.2 ?m and 30 to 90% by mass of a synthetic rubber having a weight-average particle size of 0.2 to 0.4 ?m, wherein particles of the natural rubber include not less than 5% by mass of natural rubber articles with a size of 1.0 ?m or larger; and particles of the rubbery polymer (R) with a size of 1.0 ?m or larger have an internal graft ratio of 20% or higher.
    Type: Application
    Filed: September 20, 2013
    Publication date: September 3, 2015
    Inventors: Takuya Shibata, Masafumi Koyama, Takamasa Owaki, Nobuaki Shirakawa, Yoshiyasu Naito, Akira Saito, Tadakatsu Takasaki, Kosuke Shirotani, Takashi Ueda, Akira Morito
  • Patent number: 8871849
    Abstract: The present invention relates to a thermoplastic resin composition obtained by compounding phosphoric acid and/or monosodium phosphate (D) with a resin composition including a styrenebased resin (A), a graft copolymer (B), and an aliphatic polyester resin (C), wherein the thermoplastic resin composition is excellent in mechanical properties (e.g., impact resistance) and thermal stability, and, in addition, can be molded without any problem in terms of safety and hygiene.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: October 28, 2014
    Assignee: Toray Industries, Inc.
    Inventors: Yoshiyasu Naito, Daisuke Kuwahara, Takamasa Owaki
  • Publication number: 20130310502
    Abstract: The present invention relates to a thermoplastic resin composition obtained by compounding phosphoric acid and/or monosodium phosphate (D) with a resin composition including a styrenebased resin (A), a graft copolymer (B), and an aliphatic polyester resin (C), wherein the thermoplastic resin composition is excellent in mechanical properties (e.g., impact resistance) and thermal stability, and, in addition, can be molded without any problem in terms of safety and hygiene.
    Type: Application
    Filed: February 13, 2012
    Publication date: November 21, 2013
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Yoshiyasu Naito, Daisuke Kuwahara, Takamasa Owaki
  • Publication number: 20070122469
    Abstract: A method for preparing a vesicle dispersion wherein a water-soluble substance is encupsulated in the vesicle, which comprises successively performing: a step of dispersing at least one lipid in an aqueous medium to pre-construct a vesicle dispersion, a step of drying the pre-constructed vesicles to obtain dried vesicles, a step of re-dispersing the dried vesicles in an aqueous solution of the water-soluble substance, and a step of passing the resultant vesicle dispersion through a filter. The method enables the efficient and simple preparation of safe vesicles with a useful substance in high concentration encupsulated therein, with a narrow size distribution, in high yield.
    Type: Application
    Filed: January 29, 2007
    Publication date: May 31, 2007
    Inventors: Eishun Tsuchida, Shinji Takeoka, Keitaro Sou, Taro Endo, Yoshiyasu Naito
  • Publication number: 20040057988
    Abstract: A method for preparing a vesicle dispersion wherein a water-soluble substance is encupsulated in the vesicle, which comprises successively performing: a step of dispersing at least one lipid in an aqueous medium to pre-construct a vesicle dispersion, a step of drying the pre-constructed vesicles to obtain dried vesicle, a step of re-dispersing the dried vesicles in an aqueous solution of the water-soluble substance, and a step of passing the resultant vesicle dispersion through a filter. The method enables the efficient and simple preparation of safe vesicles with a useful substance in high concentration encupsulated therein, with a narrow size distribution, in high yield.
    Type: Application
    Filed: July 2, 2003
    Publication date: March 25, 2004
    Inventors: Eishun Tsuchida, Shinji Takeoka, Keitaro Sou, Taro Endo, Yoshiyasu Naito