Patents by Inventor Akito Niboshi

Akito Niboshi 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).

  • Patent number: 6492596
    Abstract: A foamable composition containing a base polymer containing a polyethylene mixture of a low density-polyethylene having a density of 0.91-0.925 g/cm3 and a high density polyethylene having a density of 0.94-0.97 g/cm3, and a fluororesin powder and/or a boron nitride powder as a nucleator, wherein the high density polyethylene has an swelling ratio smaller than that of the low density polyethylene and a melt flow rate greater than that of the low density polyethylene, and is contained in a proportion of not less than 50 percent by weight of the polyethylene mixture, and the base polymer has a shear viscosity (temperature:170° C., shear rate:1216 sec−1) of not more than 3150 poise, and a coaxial insulating cable having an electrically insulating layer formed of a foam having an expansion ratio of not less than 70% and obtained by foaming the above foamable composition are provided.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: December 10, 2002
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Takashi Higashikubo, Hirokazu Kuzushita, Akito Niboshi