Patents by Inventor Naotake Kashiwakura

Naotake Kashiwakura 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).

  • Biaxially oriented, laminated polyester film
    Patent number: 5747174
    Abstract: Disclosed is a biaxially oriented, laminated polyester film having a Young's modulus of 10-250 kg/mm.sup.2 and formed by laminating layers of polyester B on both surfaces of a layer of polyester A whose main constituent is an ethylene terephthalate having a glass transition temperature of not higher than 50.degree. C. This film not only has characteristics that the conventional polyester films do not possess, such as impact resistance, resistance to pinhole generation and low-temperature performance, but also is excellent in flexibility.
    Type: Grant
    Filed: January 15, 1997
    Date of Patent: May 5, 1998
    Assignee: Toray Industries, Inc.
    Inventors: Masahiro Kimura, Kohzo Takahashi, Naotake Kashiwakura, Kenji Tsunasima, Hirokazu Kurome