Patents by Inventor Yuuki Tashiro

Yuuki Tashiro 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: 20230415381
    Abstract: Impurities are removed from plastic by cleaning using, as a cleaning medium, water heated to a level where a dielectric constant is 60 or less.
    Type: Application
    Filed: November 15, 2021
    Publication date: December 28, 2023
    Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Yuuki TASHIRO, Seishi YOSHIKAWA, Jotaro NAGAO, Azusa OTSUKI
  • Patent number: 11298926
    Abstract: A gas-barrier multilayered container having (i) a layer of a propylene type polymer which chiefly includes a homopolypropylene having an isotactic index of not less than 93%, and (ii) a layer of an ethylene-vinyl alcohol copolymer having not less than two crystal melting peak temperatures. Also disclosed is a lustrous and shock-resistant multilayered container having at least (i) an outermost layer of a propylene type polymer A which chiefly includes a homopolypropylene having a melt flow rate of 2.0 to 10.0 g/10 min., and (ii) an inner layer of a propylene type polymer B which chiefly includes a homopolypropylene having a melt flow rate of not more than 1.0 g/10 min.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: April 12, 2022
    Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Yuuki Tashiro, Takayuki Ishihara, Azusa Otsuki
  • Patent number: 11148402
    Abstract: A multilayer container including: an outermost layer (1) containing a propylene-based polymer A containing homopolypropylene as a main component having a melt flow rate in a range of 2.0 to 10.0 g/10 min; an inner layer (2) containing 50 to 99% by weight of a propylene-based polymer B containing homopolypropylene as a main component having a melt flow rate of not more than 5.0 g/10 min and an isotactic index of not less than 93%, and 1 to 50% by weight of an ethylene-?-olefin copolymer C; and a barrier layer (4) occupying 5 to 20% by weight of the whole container. The ratio (L/D) of container height (L) to diameter (D) is not less than 0.5, and a volume shrinkage based on volume measured before and after heat sterilization at 121° C. for 30 minutes is not more than 5%.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: October 19, 2021
    Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Yuuki Tashiro, Takayuki Ishihara, Azusa Otsuki, Kenji Ichikawa, Toshiki Yamada, Seishi Yoshikawa, Koki Shibata
  • Publication number: 20210197538
    Abstract: A multilayer container including: an outermost layer (1) containing a propylene-based polymer A containing homopolypropylene as a main component having a melt flow rate in a range of 2.0 to 10.0 g/10 min; an inner layer (2) containing 50 to 99% by weight of a propylene-based polymer B containing homopolypropylene as a main component having a melt flow rate of not more than 5.0 g/10 min and an isotactic index of not less than 93%, and 1 to 50% by weight of an ethylene-?-olefin copolymer C; and a barrier layer (4) occupying 5 to 20% by weight of the whole container. The ratio (L/D) of container height (L) to diameter (D) is not less than 0.5, and a volume shrinkage based on volume measured before and after heat sterilization at 121° C. for 30 minutes is not more than 5%.
    Type: Application
    Filed: August 30, 2019
    Publication date: July 1, 2021
    Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Yuuki TASHIRO, Takayuki ISHIHARA, Azusa OTSUKI, Kenji ICHIKAWA, Toshiki YAMADA, Seishi YOSHIKAWA, Kouki SHIBATA
  • Publication number: 20200239660
    Abstract: An article represented by a container that is formed of a thermoplastic resin blended with a metal or a metal compound that can react with a corrosive gas or a volatile sulfur compound and give a color. The thermoplastic resin includes at least one metal selected from three metals of Zn, Sn and Mn or one metal compound thereof, and a metal or a metal compound that is not any of these three metals and that can react with the corrosive gas or the volatile sulfur compound and give a color. The metal selected from the three metals or the metal compound functions as a scavenger for the corrosive gas or the volatile sulfur compound.
    Type: Application
    Filed: July 25, 2018
    Publication date: July 30, 2020
    Applicants: TOYO SEIKAN GROUP HOLDINGS, LTD., TOYO SEIKAN CO., LTD.
    Inventors: Kousuke UEDA, Yuuki TASHIRO, Takayuki ISHIHARA, Azusa OTSUKI, Toshihiro TANABE, Masashi ATSUGI, Yuusuke ITOU, Gou SAITOU
  • Publication number: 20200017672
    Abstract: A gas-barrier multilayered container having (i) a layer of a propylene type polymer which chiefly includes a homopolypropylene having an isotactic index of not less than 93%, and (ii) a layer of an ethylene-vinyl alcohol copolymer having not less than two crystal melting peak temperatures. Also disclosed is a lustrous and shock-resistant multilayered container having at least (i) an outermost layer of a propylene type polymer A which chiefly includes a homopolypropylene having a melt flow rate of 2.0 to 10.0 g/10 min., and (ii) an inner layer of a propylene type polymer B which chiefly includes a homopolypropylene having a melt flow rate of not more than 1.0 g/10 min.
    Type: Application
    Filed: March 14, 2018
    Publication date: January 16, 2020
    Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Yuuki TASHIRO, Takayuki ISHHARA, Azusa OTSUKI
  • Patent number: 10213991
    Abstract: A multilayered container includes at least a polyolefin inner layer; an adhesive layer; a gas-barrier layer; an oxygen-absorbing layer; a gas-barrier layer; an adhesive layer; a polyolefin outer layer, and having at least a body portion and a bottom portion, wherein the gas-barrier layers include an ethylene-vinyl alcohol copolymer, the oxygen-absorbing layer includes an oxygen-absorbing resin composition that contains the ethylene-vinyl alcohol copolymer and an oxidizing organic component, an adsorbing agent is contained on the side inside of said gas-barrier layer, the thickness of the multilayered container at the thinnest portion is not more than 430 ?m, and the amount of oxygen absorbed after the heat-sterilization is not less than 23 cc per gram of the oxygen-absorbing resin composition. Despite of this decreased thickness, the multilayered container maintains excellent oxygen-barrier property and property for retaining flavor of the content even when it is subjected to the retort sterilization.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: February 26, 2019
    Assignee: TOKYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Takayuki Ishihara, Yuuki Tashiro, Kota Mori, Go Saito
  • Publication number: 20180141733
    Abstract: A multilayered container obtained by heat-forming a multilayered sheet or a multilayered preform that includes inner and outer layers of an ethylene terephthalate type polyester resin, and at least one intermediate layer of at least a lowly crystalline ethylene terephthalate type polyester resin and a gas-barrier aromatic polyamide resin, wherein a difference of refractive index (?RI) between the lowly crystalline ethylene terephthalate type polyester resin and the gas-barrier aromatic polyamide resin represented by the following formula (1), ?RI=|RIE?RIA|??(1) wherein RIE and RIA are refractive indexes of injection-formed plates made, respectively, from the lowly crystalline ethylene terephthalate type polyester resin and the gas-barrier aromatic polyamide resin after they have been monoaxially stretched into 3 times, is not more than 0.03, and a haze in a side surface of the container is not more than 5%.
    Type: Application
    Filed: June 30, 2016
    Publication date: May 24, 2018
    Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Yukiko HIRAYAMA, Toshiki YAMADA, Takayuki ISHIHARA, Yuuki TASHIRO
  • Publication number: 20180093458
    Abstract: A multilayered container having an intermediate layer that contains a resin composition B obtained by blending a resin composition A that contains at least a resin (a) having a hydroxyl group with a carboxyl compound (b) of which the ?-carbon is quaternary and of which the carboxyl group is forming no metal salt, wherein a ratio (COOH/OH) of the amount of the carboxyl groups of the carboxyl compound (b) to the amount of the hydroxyl groups of the resin (a) in the resin composition A is not more than 0.4 The multilayered container maintains excellent anti-eluting property and flavor-retaining property even when it is subjected to the retort sterilization.
    Type: Application
    Filed: April 4, 2016
    Publication date: April 5, 2018
    Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Kota MORI, Takayuki ISHIHARA, Yuuki TASHIRO, Azusa OTSUKI
  • Publication number: 20150251390
    Abstract: A multilayered container includes at least a polyolefin inner layer; an adhesive layer; a gas-barrier layer; an oxygen-absorbing layer; a gas-barrier layer; an adhesive layer; a polyolefin outer layer, and having at least a body portion and a bottom portion, wherein the gas-barrier layers include an ethylene-vinyl alcohol copolymer, the oxygen-absorbing layer includes an oxygen-absorbing resin composition that contains the ethylene-vinyl alcohol copolymer and an oxidizing organic component, an adsorbing agent is contained on the side inside of said gas-barrier layer, the thickness of the multilayered container at the thinnest portion is not more than 430 ?m, and the amount of oxygen absorbed after the heat-sterilization is not less than 23 cc per gram of the oxygen-absorbing resin composition. Despite of this decreased thickness, the multilayered container maintains excellent oxygen-barrier property and property for retaining flavor of the content even when it is subjected to the retort sterilization.
    Type: Application
    Filed: September 27, 2013
    Publication date: September 10, 2015
    Applicant: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Takayuki Ishihara, Yuuki Tashiro, Kota Mori, Go Saito
  • Patent number: 8834981
    Abstract: [Problems] To provide a multilayered plastic container which exhibits excellent oxygen-barrier property of the ethylene-vinyl alcohol copolymer to a sufficient degree without the need of providing a special adhesive layer, and which, when a polyolefin resin is used to form the inner and outer layers, too, not only permits the ethylene-vinyl alcohol copolymer to be effectively used but also makes it very easy to set the conditions for satisfying predetermined properties.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: September 16, 2014
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Takayuki Ishihara, Yuuki Tashiro, Kota Mori
  • Publication number: 20130213850
    Abstract: [Problems] To provide a multilayered plastic container which exhibits excellent oxygen-barrier property of the ethylene-vinyl alcohol copolymer to a sufficient degree without the need of providing a special adhesive layer, and which, when a polyolefin resin is used to form the inner and outer layers, too, not only permits the ethylene-vinyl alcohol copolymer to be effectively used but also makes it very easy to set the conditions for satisfying predetermined properties.
    Type: Application
    Filed: November 16, 2011
    Publication date: August 22, 2013
    Applicant: TOYO SEIKAN KAISHA, LTD.
    Inventors: Takayuki Ishihara, Yuuki Tashiro, Kota Mori
  • Patent number: 6259200
    Abstract: An active-matrix display apparatus includes a pair of transparent top and bottom insulating substrates mutually attached with a predetermined gap left therebetween, and an electro-optical material such as a liquid crystal held in the gap. The bottom insulating substrate has opaque signal lines and gate lines that intersect the signal lines, a bottom-gate type thin-film transistor arranged at each intersection, and a transparent pixel electrode arranged in an aperture surrounded by the signal lines and the gate lines and connected to the corresponding thin-film transistor. The top insulating substrate is provided with an opposing electrode and a shading black mask aligned with at least the gate line. It is noted that the bottom insulating substrate is provided with a light-shielding film.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: July 10, 2001
    Assignee: Sony Corporation
    Inventors: Shintarou Morita, Yuuki Tashiro