Patents by Inventor Hakuei HIROKAWA

Hakuei HIROKAWA 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).

  • FORGED STEEL ROLL FOR COLD ROLLING
    Publication number: 20240383025
    Abstract: Provided is a forged steel roll for cold rolling with a Vickers hardness Hy at 400° C. of 400 or more.
    Type: Application
    Filed: August 3, 2021
    Publication date: November 21, 2024
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Seiji ITO, Yoshiki TAKAHAMA, Kaho HIRAYAMA, Hakuei HIROKAWA, Kazuya HANAORI, Tomoaki SERA