This inventor holds 1 USPTO granted patent. Top assignee: Nippon Steel Corporation. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: Hakuei Hirokawa and Cold-Rolling Technology.
Introduction
Hakuei Hirokawa is an inventor based in Tokyo, Japan, associated with Nippon Steel Corporation. His patent work includes a forged steel roll designed for cold rolling.
Latest Patents
Hirokawa is credited with 1 patent: “Forged Steel Roll for Cold Rolling.” The invention describes a forged steel roll with a Vickers hardness of at least 400 at 400°C.
Career Highlights
Hirokawa’s listed invention addresses the material hardness of steel rolls used in cold-rolling processes. The patent identifies Nippon Steel Corporation as his company.
Collaborations
Hirokawa’s listed coworker is Seiji Ito.
Conclusion
Hakuei Hirokawa’s patent focuses on a forged steel roll with high hardness at elevated temperature, reflecting his association with Nippon Steel Corporation’s work in rolling technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile