Patents by Inventor Naomi TOYOSHIMA

Naomi TOYOSHIMA 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).

  • Flame-retardant foamable styrene resin composition
    Patent number: 10633502
    Abstract: Provided is a flame-retardant foamable styrene resin composition having a high flame retardancy and thermal stability, and recyclable, with a small amount of a bromine-containing flame retardant added. A flame-retardant foamable styrene resin composition, containing (A) a styrene resin, (B) a bromine-containing organic compound, (C) zinc oxide, and (D) a foaming agent, in which an amount of (C) the zinc oxide added is less than 2 parts by weight per 100 parts by weight of (A) the styrene resin.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: April 28, 2020
    Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Masahito Nishiura, Hisanori Semori, Naomi Toyoshima
  • Flame-retardant foamed styrene resin composition
    Patent number: 9422410
    Abstract: Provided is a recyclable flame-retardant foamed styrene resin composition having high flame-retardancy and heat stability by adding little bromine-containing flame retardant. A flame-retardant foamed styrene resin composition containing (A) a styrene resin, (B) a mixture of (B1) tetrabromobisphenol A-bis(2,3-dibromo-2-methylpropyl ether) and (B2) another bromine-containing flame retardant, (C) zinc-modified hydrotalcite, (D) zeolite, and (G) a foaming agent, containing 0.005-0.08 parts by weight of (C) the zinc-modified hydrotalcite per 100 parts by weight of (A) the styrene resin.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: August 23, 2016
    Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Masahito Nishiura, Hideaki Onishi, Hisanori Semori, Naomi Toyoshima
  • FLAME-RETARDANT EXPANDABLE STYRENE RESIN COMPOSITION
    Publication number: 20160075843
    Abstract: Provided is a flame-retardant foamable styrene resin composition having a high flame retardancy and thermal stability, and recyclable, with a small amount of a bromine-containing flame retardant added. A flame-retardant foamable styrene resin composition, containing (A) a styrene resin, (B) a bromine-containing organic compound, (C) zinc oxide, and (D) a foaming agent, in which an amount of (C) the zinc oxide added is less than 2 parts by weight per 100 parts by weight of (A) the styrene resin.
    Type: Application
    Filed: April 25, 2014
    Publication date: March 17, 2016
    Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.
    Inventors: Masahito NISHIURA, Hisanori SEMORI, Naomi TOYOSHIMA