Patents by Inventor Kouichi Yoneta

Kouichi Yoneta 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).

  • Finish rolling method for production of round cross-sectional shape materials
    Patent number: 4070893
    Abstract: In the rolling of metal material to round cross-sectional shape through a succession of three roll stands with the horizontal-horizontal-vertical, or vertical-vertical-horizontal rolls arranged in this order in the rolling down direction for achievement of increased accuracy of dimensional control at finish, an initial metal stock of specific oval cross-section is rolled to an intermediate and small reduction through the first and second stands forming specific oval groove, and then to a finish and small reduction through the third stand forming a round groove.
    Type: Grant
    Filed: December 23, 1976
    Date of Patent: January 31, 1978
    Assignee: Nippon Steel Corporation
    Inventors: Michio Nishikubo, Sei Miura, Toshiaki Toyoda, Katsunori Jonishi, Kouichi Yoneta