Patents by Inventor Tsutae Iryo

Tsutae Iryo 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).

  • Ceramics and method of preparing the same
    Patent number: 6660670
    Abstract: Ceramics containing a diopside crystal phase and a cordierite phase, the remainder being a glass phase and/or other ceramic crystal phases, and having an open porosity of not larger than 1%. The ceramics is obtained by firing at from 800 to 1050° C., and exhibits a dielectric constant of not larger than 7 and a small dielectric loss in a high-frequency region, a ceramic strength of not smaller than 250 MPa, and a coefficient of thermal expansion close to those of the chips such as of Si and Ga—As and of the printed board.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: December 9, 2003
    Assignee: Kyocera Corporation
    Inventors: Yoshitake Terashi, Hiromi Iwachi, Tsutae Iryo
  • Ceramics and method of preparing the same
    Publication number: 20020098965
    Abstract: Ceramics containing a diopside crystal phase and a cordierite phase, the remainder being a glass phase and/or other ceramic crystal phases, and having an open porosity of not larger than 1%. The ceramics is obtained by firing at from 800 to 1050° C., and exhibits a dielectric constant of not larger than 7 and a small dielectric loss in a high-frequency region, a ceramic strength of not smaller than 250 MPa, and a coefficient of thermal expansion close to those of the chips such as of Si and Ga—As and of the printed board.
    Type: Application
    Filed: November 29, 2001
    Publication date: July 25, 2002
    Applicant: KYOCERA CORPORATION
    Inventors: Yoshitake Terashi, Hiromi Iwachi, Tsutae Iryo