Patents by Inventor Yoshihiro Ezaki

Yoshihiro Ezaki 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).

  • Multi-layer film
    Patent number: 4574104
    Abstract: The present invention relates to a multi-layer film comprising at least three layers of two outer layers and an intermediate layer sandwiched therebetween wherein the intermediate layer is formed of a resin composition of a high density polyethylene and an ethylene .alpha.-olefin copolymer, and the outer layers are formed of an ethylene .alpha.-olefin copolymer and at least one of the outer layers is formed of a resin composition of an ethylene .alpha.-olefin copolymer and a low density polyethylene.The object of the present invention is to provide a multi-layer film having a high mechanical strength and superior in properties such as heat sealability, anti-blocking, and suitability for automatic packaging.
    Type: Grant
    Filed: October 19, 1984
    Date of Patent: March 4, 1986
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Takanori Aishima, Makoto Utsumi, Yoshihiro Ezaki