Patents by Inventor Eriko Kida

Eriko Kida 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).

  • Polycarbonate resin composition and optical molded article
    Patent number: 9617418
    Abstract: A polycarbonate resin composition includes: a polycarbonate resin (A); a tetramethylene glycol derivative (B) represented by general formula (1): HO(C4H8O)m(C3H6O)nH (wherein m and n independently represent an integer of 4 to 60, and m+n represents an integer of 20 to 90); and a phosphite compound (C), an amount of the tetramethylene glycol derivative (B) is 0.005 to 5.0 parts by weight per 100 parts by weight of the polycarbonate resin (A), and an amount of the phosphite compound (C) is 0.005 to 5.0 parts by weight per 100 parts by weight of the polycarbonate resin (A). An optical molded article is obtained by molding the polycarbonate resin composition.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: April 11, 2017
    Assignee: SUMIKA STYRON POLYCARBONATE LIMITED
    Inventors: Yoichiro Sakaki, Eriko Kida
  • POLYCARBONATE RESIN COMPOSITION AND OPTICAL MOLDED ARTICLE
    Publication number: 20160326365
    Abstract: A polycarbonate resin composition includes: a polycarbonate resin (A); a tetramethylene glycol derivative (B) represented by general formula (1): HO(C4H8O)m(C3H6O)nH (wherein m and n independently represent an integer of 4 to 60, and m+n represents an integer of 20 to 90); and a phosphite compound (C), an amount of the tetramethylene glycol derivative (B) is 0.005 to 5.0 parts by weight per 100 parts by weight of the polycarbonate resin (A), and an amount of the phosphite compound (C) is 0.005 to 5.0 parts by weight per 100 parts by weight of the polycarbonate resin (A). An optical molded article is obtained by molding the polycarbonate resin composition.
    Type: Application
    Filed: December 5, 2014
    Publication date: November 10, 2016
    Inventors: Yoichiro Sakaki, Eriko Kida