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: Katsutoshi Tatebe: Railway Wheel Innovation
Introduction
Katsutoshi Tatebe 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
Tatebe 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 defines a relationship between that ratio and the initial hardening coefficient.
Career Highlights
The available information connects Tatebe’s patent activity with Nippon Steel Corporation and railway wheel engineering. His patented design focuses on material behavior intended to reduce the spread of cracks in railway wheels.
Collaborations
Taizo Makino and Ryuta Kurosaka are identified as Tatebe’s coworkers. The provided information does not specify their roles in the patent.
Conclusion
Katsutoshi Tatebe’s documented invention addresses railway wheel durability through specified material properties designed to help suppress crack propagation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile