Company Filing History:
7 out of 1,101 
3 out of 3,557 Years Active: 2016-2023
Title: Yasuhiro Mayumi: Innovator in Electrical Steel Manufacturing
Introduction
Yasuhiro Mayumi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of electrical steel manufacturing, holding a total of 10 patents. His innovative methods have advanced the production processes of grain-oriented electrical steel sheets, which are essential in various electrical applications.
Latest Patents
Among his latest patents, Yasuhiro Mayumi has developed a method for manufacturing grain-oriented electrical steel sheets. This method includes several critical steps: obtaining a hot-rolled steel sheet through hot rolling on a slab with a specific component composition, conducting hot-rolled sheet annealing, and performing pickling to achieve a pickled sheet. Additionally, the process involves cold rolling to create a cold-rolled steel sheet, primary recrystallization annealing, and applying an annealing separating agent before final annealing. Another notable patent focuses on a similar method that emphasizes rapid temperature increases during primary recrystallization annealing, enhancing the tensile strength of the cold-rolled steel sheet.
Career Highlights
Yasuhiro Mayumi has worked with leading companies in the steel industry, including Nippon Steel & Sumitomo Metal Corporation and Nippon Steel Corporation. His experience in these organizations has allowed him to refine his expertise in steel manufacturing and contribute to innovative processes that improve product quality and efficiency.
Collaborations
Throughout his career, Yasuhiro has collaborated with notable colleagues such as Toshiya Takechi and Kenji Umetsu. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in the field of electrical steel.
Conclusion
Yasuhiro Mayumi's contributions to the manufacturing of grain-oriented electrical steel sheets have established him as a key figure in the industry. His innovative methods and collaborative efforts continue to influence advancements in electrical steel technology.