Patents by Inventor Shoichiro Nomura

Shoichiro Nomura 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).

  • Low-loss microwave dielectric material
    Patent number: 4487842
    Abstract: A low-loss microwave dielectric material comprising a sinter of a mixture of a perovskite type structure compound oxide comprising singly or mainly Ba(Zn.sub.1/3 Ta.sub.2/3)O.sub.3 and Ba(Mg.sub.1/3 Ta.sub.2/3)O.sub.3 with a small amount of Mn. Mn addition not only favorably affects sinterability to lower the required sintering temperature but also advantageously heightens the unloaded Q factor of the resulting sinter in an SHF band.
    Type: Grant
    Filed: May 18, 1983
    Date of Patent: December 11, 1984
    Assignee: Nippon Hoso Kyokai
    Inventors: Shoichiro Nomura, Yoshihiro Konishi