Patents by Inventor Kazuyoshi Fujimura

Kazuyoshi Fujimura 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 making polyethylene resinous open cell cellular bodies
    Patent number: 6517764
    Abstract: A method is disclosed that makes a open cell cellular body of polyethylene resin material in non-crosslinked structure, which has a maximum degree of cell interconnection, is good in recyclability and excellent in heat resistance or resistance to heat distortion. The method includes the steps of adding 4,4′-oxy bis (benzene sulfonyl hydrazide) to a polyethylene resin material to form a foamable composition and shaping the foamable composition of polyethylene resin material, heating the shaped foamable composition of polyethylene resin material to be foamed under an atmospheric pressure to form a cellular body thereof with cells therein, and mechanically deforming the cellular body of polyethylene resin material to cause the cells therein to be interconnected, thereby producing the open cell cellular body desired. The produced continuous cellular body is rendered heat resistant by irradiating the same or the formed cellular body with a beam of electrons.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: February 11, 2003
    Assignee: Sanwa Kako Co., Ltd.
    Inventors: Tomoyoshi Shibata, Yoshio Miyano, Kazuyoshi Fujimura
  • Method and making polyethylene resinous open cell cellular bodies
    Publication number: 20010042943
    Abstract: A method is disclosed that makes a open cell cellular body of polyethylene resin material in non-crosslinked structure, which has a maximum degree of cell interconnection, is good in recyclability and excellent in heat resistance or resistance to heat distortion. The method includes the steps of adding 4,4′-oxy bis (benzene sulfonyl hydrazide) to a polyethylene resin material to form a foamable composition and shaping the foamable composition of polyethylene resin material, heating the shaped foamable composition of polyethylene resin material to be foamed under an atmospheric pressure to form a cellular body thereof with cells therein, and mechanically deforming the cellular body of polyethylene resin material to cause the cells therein to be interconnected, thereby producing the open cell cellular body desired. The produced continuous cellular body is rendered heat resistant by irradiating the same or the formed cellular body with a beam of electrons.
    Type: Application
    Filed: February 8, 2001
    Publication date: November 22, 2001
    Applicant: SANWA KAKO CO., LTD.
    Inventors: Tamoyoshi Shibata, Yoshio Miyano, Kazuyoshi Fujimura