Patents by Inventor Yumiko Oki

Yumiko Oki 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).

  • Expandable beads having flame retardancy of V-0 or V-1, and molded body using the same
    Patent number: 9074059
    Abstract: The present invention provides expandable beads having an average particle size of 0.5 to 10 mm, a density of 0.033 to 0.80 g/cc, and a flame retardancy of V-0 or V-1 as measured according to the UL-94 vertical test (20 mm vertical burn test) in the UL standards.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: July 7, 2015
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Shoichiro Harada, Yumiko Oki, Shoichi Takaishi, Takeshi Fujisawa, Tadayuki Ishii
  • EXPANDABLE BEADS, MOLDED BODY USING THE SAME, AND PRODUCTION METHOD FOR MOLDED BODY
    Publication number: 20120141794
    Abstract: The present invention provides expandable beads having an average particle size of 0.5 to 10 mm, a density of 0.033 to 0.80 g/cc, and a flame retardancy of V-0 or V-1 as measured according to the UL-94 vertical test (20 mm vertical burn test) in the UL standards.
    Type: Application
    Filed: August 11, 2010
    Publication date: June 7, 2012
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Shoichiro Harada, Yumiko Oki, Shoichi Takaishi, Takeshi Fujisawa, Tadayuki Ishii