Company Filing History:
Years Active: 2022-2025
Title: Innovator Taketo Maejima: Advancing Railway Technology
Introduction
Taketo Maejima is a renowned inventor based in Tokyo, Japan. He has made significant contributions to the field of materials engineering, particularly in the development of railway wheels. With a total of four patents to his name, Maejima continues to influence the industry with his innovative ideas and techniques.
Latest Patents
One of Taketo Maejima's most notable patents focuses on a new type of railway wheel. This railway wheel boasts excellent toughness, even with a carbon content as high as 0.80% or more. The chemical composition for this innovative railway wheel includes: in mass %, C: 0.80 to 1.60%, Si: 1.00% or less, Mn: 0.10 to 1.25%, P: 0.050% or less, S: 0.030% or less, Al: 0.010 to 0.650%, and N: 0.0030 to 0.0200%, with the balance being iron and impurities. Furthermore, the microstructure of the wheel's web part consists of an area fraction of pearlite of 85.0% or more and an area fraction of pro-eutectoid cementite in a specific range. Another patent describes a similar railway wheel with a chemical composition including C: 0.80 to 1.15% and various other components. The structural integrity of these wheels reflects Maejima’s commitment to durability and performance in railway technology.
Career Highlights
Taketo Maejima is currently employed at Nippon Steel Corporation, a leading player in the steel industry, where he has the opportunity to apply his innovative concepts to large-scale manufacturing. His inventions enhance the quality and longevity of railway parts, contributing to safer and more efficient transportation systems. Maejima's research and development efforts have solidified his position as a prominent inventor in his field.
Collaborations
At Nippon Steel Corporation, Taketo collaborates with his coworker, Manabu Kubota. Together, they share insights and expertise, further driving innovation in material science and engineering. This teamwork enriches their projects and leads to the development of cutting-edge technologies in railway wheels and other applications.
Conclusion
Taketo Maejima's work exemplifies the spirit of innovation in engineering and materials development. His contributions, particularly in railway technology, not only showcase his inventive prowess but also significantly impact the industry. With ongoing research and collaboration, Maejima is set to produce further innovations that can enhance the safety and reliability of railway systems worldwide.