Patents by Inventor Rina HOSHIKA

Rina HOSHIKA 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: 20220372187
    Abstract: The present invention relates to a resin composition comprising an ethylene-vinyl alcohol copolymer (A) with an ethylene unit content of 20 mol % or more and 60 mol % or less, a divalent metal hydroxide (B) and a monovalent metal compound (C), wherein a content of the divalent metal hydroxide (B) is 5 ppm or more and 5000 ppm or less, and a mass ratio (C/B) of the amount of the monovalent metal compound (C) in terms of the monovalent metal atom to the amount of the divalent metal hydroxide (B) in terms of the divalent metal atom is 0.025 to 100. Thus, there is provided a resin composition containing an ethylene-vinyl alcohol copolymer having excellent long run property during melt molding and excellent color phase in long-term melt molding.
    Type: Application
    Filed: December 25, 2020
    Publication date: November 24, 2022
    Applicant: KURARAY CO., LTD.
    Inventors: Rina Hoshika, Yuji Shimizu
  • Publication number: 20190345280
    Abstract: A hot-water sterilized package includes a container having a barrier layer filled with contents, wherein the barrier layer contains 96 mass % or more of a modified ethylene-vinyl alcohol copolymer based on the resin total, the modified ethylene-vinyl alcohol copolymer is represented by a following formula (I), contents (mol %) of a, b, and c based on the total monomer units satisfy following formulae (1) through (3), a degree of saponification (DS) defined by a following formula (4) is 90 mol % or more, and in measurement using a differential scanning calorimeter (DSC), crystalline melting enthalpy (?HA: J/g) during temperature rise in a hydrated state and crystalline melting enthalpy (?HB: J/g) during temperature rise after drying and melting followed by rapid cooling satisfy following formulae (5) and (6). A container constituting such a package has excellent in oxygen barrier properties even after hot-water sterilization, and thus degradation of content quality is inhibited for a long period.
    Type: Application
    Filed: December 28, 2017
    Publication date: November 14, 2019
    Applicant: KURARAY CO., LTD.
    Inventors: Rina HOSHIKA, Makoto OKAMOTO, Makoto SUZUKI