Patents by Inventor Tuyosi Tanaka

Tuyosi Tanaka 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).

  • Photosensitive ceramic green sheet, ceramic package, and process for producing the same
    Patent number: 6159322
    Abstract: A photosensitive ceramic green sheet having an inorganic powder including 30% or more of a glass powder and a photosensitive organic component as essential components, characterized by satisfying -0.05.ltoreq.N2-N1.ltoreq.0.1 where N1 is the average refractive index of the organic component and N2 is the average refractive index of the inorganic powder is used to provide a highly accurate ceramic package with a high aspect ratio.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: December 12, 2000
    Assignee: Toray Industries, Inc.
    Inventors: Tomohiko Ogata, Takaki Masaki, Yuichiro Iguchi, Tuyosi Tanaka, Keiji Iwanaga