Patents by Inventor Ketsuke Kume

Ketsuke Kume 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).

  • Method for producing polyethylene terephthalate packing material
    Patent number: 4451422
    Abstract: A polyethylene terephthalate packing band is provided which is made of a polyethylene terephthalate resin having an intrinsic viscosity of 0.90 to 1.20 and has been longitudinally stretched to an overall draft of 3 to 6 times. There is also provided a packing band of the above construction in which the longitudinal orientation of the resin molecules has been randomized by embossing. There is further provided a method by which the above-mentioned packing band is efficiently manufactured.
    Type: Grant
    Filed: April 28, 1982
    Date of Patent: May 29, 1984
    Assignee: Sekisui Jushi Kabushiki Kaisha
    Inventors: Ryosuki Yui, Ketsuke Kume, Masaaki Hashi, Junji Niikura