Patents by Inventor Nobuyuki Iwasawa

Nobuyuki Iwasawa 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-layered hollow container
    Patent number: 4497856
    Abstract: Multi-layered containers are disclosed including an inner layer of a thermoplastic fluorocarbon resin, an outer layer of polyolefin, and an intermediate layer therebetween of a mixture of either polyolefin grafted with an unsaturated glycidyl compound or an ethylene copolymer grafted with an unsaturated glycidyl compound. The containers possess unexpectedly improved properties, including moldability and interlaminar strength, and are excellent candidates for containing agricultural chemicals, fuel oil and industrial chemicals of various types.
    Type: Grant
    Filed: December 22, 1982
    Date of Patent: February 5, 1985
    Assignee: Toppan Printing Co. Ltd.
    Inventors: Nobuyuki Iwasawa, Keiji Kazato