Patents by Inventor Rie Maejima

Rie Maejima 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).

  • Transparent plastic container for anticounterfeit system
    Patent number: 8231953
    Abstract: A transparent plastic container which is transparent, allows good design and can be used for an anticounterfeit system that determines authenticity by visual check with the use of polarization property. A transparent plastic sheet of a polystyrene-based resin having a total light transmission of 85% or higher and a haze of 7% or less is subjected to vacuum, pneumatic or vacuum/pneumatic forming at a sheet temperature ranging from a glass transition temperature plus 50 degrees C. to a glass transition temperature plus 130 degrees C., thereby obtaining a transparent plastic container having a planar portion with a strain amount of 150 nm or less.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: July 31, 2012
    Assignees: NHK Spring Co., Ltd., RP Topla Limited
    Inventors: Itsuo Takeuchi, Tokio Sakauchi, Mutsumi Sasaki, Tomoyoshi Sakamoto, Masahiro Arai, Rie Maejima
  • TRANSPARENT PLASTIC CONTAINER FOR ANTICOUNTERFEIT SYSTEM
    Publication number: 20100015378
    Abstract: A transparent plastic container which is transparent, allows good design and can be used for an anticounterfeit system that determines authenticity by visual check with the use of polarization property. A transparent plastic sheet of a polystyrene-based resin having a total light transmission of 85% or higher and a haze of 7% or less is subjected to vacuum, pneumatic or vacuum/pneumatic forming at a sheet temperature ranging from a glass transition temperature plus 50 degrees C. to a glass transition temperature plus 130 degrees C., thereby obtaining a transparent plastic container having a planar portion with a strain amount of 150 nm or less.
    Type: Application
    Filed: July 11, 2007
    Publication date: January 21, 2010
    Applicant: NHK SPRING CO., LTD.
    Inventors: Itsuo Takeuchi, Tokio Sakauchi, Mutsumi Sasaki, Tomoyoshi Sakamoto, Masahiro Arai, Rie Maejima