Patents by Inventor Isamu Namiki

Isamu Namiki 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 of manufacturing a composite foamed polyolefin sheet
    Patent number: 4097319
    Abstract: A method of manufacturing a foamed polyolefin sheet which comprises the steps of laminating a film of noncross-linked thermoplastic resin free from a cross-linking agent to at least one surface of a cross-linked polyolefin base sheet containing a thermally decomposable foaming agent or a polyolefin base sheet containing the above-mentioned foaming agent and a cross-linking agent, and carrying out the thermal foaming of said film-fitted sheet while placing it on a supporting member under atmospheric pressure with the film-laminated surface of the polyolefin sheet being in contact with said supporting member.
    Type: Grant
    Filed: February 24, 1976
    Date of Patent: June 27, 1978
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Hayao Shimokawa, Makoto Nakamuri, Hideyo Ueno, Isamu Namiki, Naonori Shiina
  • Foamable polyolefin composition and method for manufacturing foamed polyolefin
    Patent number: 3965054
    Abstract: The present invention provides a foamable polyolefin composition comprising a polyolefin, a crosslinking agent, a blowing agent decomposable at temperatures higher than the decomposition temperature of said crosslinking agent and a gas trapping agent as well as a method for manufacturing foamed polyolefin from said foamable polyolefin composition.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: June 22, 1976
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Akio Nojiri, Naonori Shiina, Hlroyuki Nakae, Hideyo Ueno, Isamu Namiki