Patents by Inventor Yoshinori Kuriyama

Yoshinori Kuriyama 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 lightweight panels and their core materials
    Patent number: 4917742
    Abstract: This invention discloses lightweight panels consisting of a honeycomb, boards on both sides, and phenolic foam of a density of 7-20 Kg/m.sup.3 in the cavities of the honeycomb and a method of making a honeycomb core, with the panels characterized by being light, fireproof, fire-resistant, thermally insulating, and of high strength and useful for building panels, particularly for panels in transportation equipment.
    Type: Grant
    Filed: February 16, 1989
    Date of Patent: April 17, 1990
    Assignee: Nippon Steel Chemical Co., Ltd.
    Inventors: Yasuhiko Watanabe, Nobuyoshi Nakamura, Yoshinori Kuriyama, Takuji Motegi