This inventor holds 1 USPTO granted patent, plus 1 CIPO patent and 1 EPO 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: Ryuta Kurosaka: Railway Wheel Innovation
Introduction
Ryuta Kurosaka is an inventor based in Tokyo, Japan, associated with Nippon Steel Corporation. His patent work includes an innovation in railway wheel design intended to help suppress crack propagation.
Latest Patents
Kurosaka is named on 1 patent: “Railway wheel, and wheelset for railway vehicles.” The invention describes a railway wheel with a hub, a rim containing the tread and flange, and a web. It specifies mechanical properties for the outer layer of the rim, including an elastic limit of at least 430 MPa and an initial kinematic hardening coefficient of at least 130 GPa. The patent also sets a limit for the kinematic hardening coefficient reduction ratio and a relationship between that ratio and the initial coefficient. These design parameters are intended to help suppress the propagation of cracks.
Career Highlights
Kurosaka’s listed patent reflects work on railway wheel durability and material behavior. His association with Nippon Steel Corporation connects this invention to the company’s work in steel and industrial technologies.
Collaborations
Taketo Maejima and Takanori Kato are identified as Kurosaka’s coworkers. Their names are also associated with the railway wheel patent.
Conclusion
Ryuta Kurosaka’s patent presents a railway wheel design that uses specified material properties to address crack propagation, highlighting his contribution to railway engineering innovation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile