Company Filing History:
3 out of 1,887 
1 out of 122 Years Active: 2002-2012
Title: Masafumi Shimizu: Innovator in Hot Dip Zinc Plating
Introduction
Masafumi Shimizu is a notable inventor based in Kakogawa, Japan. He has made significant contributions to the field of hot dip zinc plating, holding a total of 4 patents. His innovative methods have improved the quality and efficiency of galvanization processes.
Latest Patents
One of his latest patents is a method and facility for hot dip zinc plating. This process involves treating a steel sheet using the oxidization/reduction method to enhance the quality of galvanization before it is hot-dip galvanized. The annealing line of equipment for this process consists of a non-oxidizing zone, an oxidizing zone, and a reducing zone, arranged in that order. In the oxidizing zone, a steel sheet containing elements that oxidize more easily than iron is treated by blowing flames onto it. Following this, the steel sheet undergoes reduction and annealing in the reducing zone.
Another significant patent is for a high-strength hot dip galvannealed steel sheet that boasts high powdering resistance. This invention features a Fe-Zn alloy plated layer on at least one side of a base steel sheet. It also includes a region where the ratio of Al (atomic %) to Zn (atomic %) is greater than or equal to 0.10, extending to a thickness of 300 micrometers or more from the surface of the plated layer. This innovation greatly improves the formability of the hot dip galvannealed steel sheet by specifying the chemical composition and structure of the base steel sheet.
Career Highlights
Masafumi Shimizu has worked with prominent companies in the steel industry, including Kobe Steel, Ltd. and Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.). His experience in these organizations has contributed to his expertise in the field of galvanization.
Collaborations
He has collaborated with notable coworkers such as Shunichi Hashimoto and Takayuki Yamamoto, further enhancing his contributions to the industry.
Conclusion
Masafumi Shimizu's innovative work in hot dip zinc plating has led to significant advancements in the quality and efficiency of galvanization processes. His patents reflect a deep understanding of materials and processes that continue to influence the steel industry.