Patents by Inventor Hirokuni Namba

Hirokuni Namba 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).

  • Process for preparing ZnSe single crystal
    Patent number: 4584053
    Abstract: A process for preparing a large ZnSe single crystal, comprising vacuum sealing polycrystalline ZnSe prepared by a chemical vapor deposition in a capable and hot isostatically pressing polycrystalline ZnSe in the capsule, by which the ZnSe single crystal having such high qualities as to be used as a substrate on which an epitaxial layer of ZnSe can be grown.
    Type: Grant
    Filed: June 22, 1984
    Date of Patent: April 22, 1986
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Hirokuni Namba, Hajime Osaka, Koichi Kamon, Fuminori Higuchi