Patents by Inventor Kazuhiko Ishimatsu

Kazuhiko Ishimatsu 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 and apparatus for producing zirconium sponge
    Patent number: 4105192
    Abstract: Apparatus and method for producing zirconium by reducing zirconium halides in the presence of a reducing agent and an inert gas. The zirconium halide is mostly reduced while being in the solid state. The apparatus permits successive reduction and vaccum distillation in one batch.
    Type: Grant
    Filed: April 23, 1976
    Date of Patent: August 8, 1978
    Assignee: Nippon Mining Company
    Inventors: Kazuhiko Ishimatsu, Takao Nakahara, Akira Murata, Masami Kuroki