Patents by Inventor Shunji Mizuta

Shunji Mizuta 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).

  • Patent number: 6250125
    Abstract: A method of producing an iron-based dispersion-strengthened alloy tube (2-1) by utilizing a rolling machine having grooved rolls (5, 5-1) and a mandrel (9)for forming the tube (2-1) from a raw rolling tube (2). In the method, a length of contact between a rolling surface (6, 6-1) of a caliber formed by the grooved rolls and an outer circumference of the rolling tube is set to be 0.9 times or more of a circumferential length of the rolling tube over the entire area of the rolling region. It is preferred that the method be performed by a Pilger type rolling machine.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: June 26, 2001
    Assignee: Japan Nuclear Cycle Development Institute
    Inventors: Shigeharu Ukai, Shunji Mizuta, Tsunemitsu Yoshitake, Shigeki Hagi, Noriaki Hirohata, Katsuhiro Abe, Takanari Okuda