Patents by Inventor Ayako Yada

Ayako Yada 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).

  • Optical film
    Patent number: 8217117
    Abstract: An optical film having at least one layer formed of a polyolefin based resin composition containing 8 to 30 wt % of a component (A) defined below and 92 to 70 wt % of a component (B) defined below, with the proviso that the total of the component (A) and the component (B) is 100 wt %: component (A): an olefin based polymer with which neither a crystal fusion peak having a crystal fusion heat of 30 J/g or more nor a crystallization peak having a crystallization heat of 30 J/g or more to be observed in the range of ?50 to 200° C. is observed in a differential scanning calorimetry measurement according to JIS K 7122; and component (B): a propylene based polymer with which a crystal fusion peak having a crystal fusion heat larger than 30 J/g or a crystallization peak having a crystallization heat larger than 30 J/g to be observed in the range of ?50 to 200° C. is observed in a differential scanning calorimetry measurement according to JIS K 7122.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: July 10, 2012
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kyoko Hino, Hiroaki Takahata, Ayako Yada
  • OPTICAL FILM
    Publication number: 20100222517
    Abstract: An optical film having at least one layer formed of a polyolefin based resin composition containing 8 to 30 wt % of a component (A) defined below and 92 to 70 wt % of a component (B) defined below, with the proviso that the total of the component (A) and the component (B) is 100 wt %: component (A): an olefin based polymer with which neither a crystal fusion peak having a crystal fusion heat of 30 J/g or more nor a crystallization peak having a crystallization heat of 30 J/g or more to be observed in the range of ?50 to 200° C. is observed in a differential scanning calorimetry measurement according to JIS K 7122; and component (B): a propylene based polymer with which a crystal fusion peak having a crystal fusion heat larger than 30 J/g or a crystallization peak having a crystallization heat larger than 30 J/g to be observed in the range of ?50 to 200° C. is observed in a differential scanning calorimetry measurement according to JIS K 7122.
    Type: Application
    Filed: September 18, 2008
    Publication date: September 2, 2010
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Kyoko Hino, Hiroaki Takahata, Ayako Yada
  • Polypropylene resin composition
    Publication number: 20040158000
    Abstract: There is provided a polypropylene resin composition comprising the following components (A) and (B):
    Type: Application
    Filed: September 15, 2003
    Publication date: August 12, 2004
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Ayako Yada, Hiroyuki Tanimura