Patents by Inventor Fumitaka Yoshida

Fumitaka Yoshida 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).

  • Sandwich panel having internal gas discharge member
    Patent number: 5580637
    Abstract: A sandwich panel which is formed by sandwiching a core member of synthetic resin foam (plastic foam) between a front surface member and a back surface member into an unified body, is provided with plural gas-permeable members in the core member or/and at the boundary between the core member and the front and/or back surface member of the sandwich panel, whereby internal gas produced in the core member is discharged through the gas-permeable members to the outside of the sandwich panel.
    Type: Grant
    Filed: June 13, 1995
    Date of Patent: December 3, 1996
    Assignee: IG-Technical Research Inc.
    Inventors: Hiroaki Konta, Fumitaka Yoshida, Masahiko Suzuki, Hiroyuki Umetsu, Hideki Takiguchi