Patents by Inventor Yoshiatsu Yokoo

Yoshiatsu Yokoo 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 for manufacturing glass product
    Patent number: 6050110
    Abstract: A manufacturing method for a glass product not having a rotatively symmetric body like an optical fiber fixing member but having a fine structure as of optical fiber engagement portions, to transfer the fine structure with a high precision without creating molding burrs, includes the steps of placing a glass material in a cavity defined by a lower mold, an upper mold, and a side mold, molding the glass material in the cavity with pressure into the glass product in so controlling that the glass material has a viscosity range of 10.sup.6.5 to 10.sup.9.
    Type: Grant
    Filed: December 24, 1997
    Date of Patent: April 18, 2000
    Assignee: Hoya Corporation
    Inventors: Masahiro Yoshida, Lihong Zhang, Teruo Yamashita, Yoshiatsu Yokoo, Ken Uno