This inventor holds 2 USPTO granted patents. Top assignees: Kawasaki Steel Corporation, Toyota Jidosha Kabushiki Kaisha. Active years: 1992-1994.
Company Filing History:
2 out of 1,256 
1 out of 38,774 
Years Active: 1992-1994
Title: The Innovations of Toshitake Hanazawa
Introduction
Toshitake Hanazawa is a notable inventor based in Kurashiki, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced steel sheets. With a total of 2 patents to his name, Hanazawa's work has had a considerable impact on the manufacturing industry.
Latest Patents
Hanazawa's latest patents include innovative methods for producing galvannealed steel sheets. One of his patents focuses on galvannealed steel sheets exhibiting excellent press die sliding properties. This invention involves a hot-dip zinc-coated steel sheet that has undergone molten galvanization and skin pass rolling. The galvanized layer features a three-dimensional average surface roughness ranging from 0.7 µm to 1.4 µm, with a skewness of the amplitude probability distribution of the surface roughness ranging from 0.1 to -0.3. Another significant patent details a method of producing hot-dip galvannealed steel sheets free of titanium. This method utilizes a very-low-carbon cold-rolled steel sheet and includes several steps such as degreasing, acid cleaning, heat treatment, and cooling before hot-dip galvanizing.
Career Highlights
Throughout his career, Hanazawa has worked with prominent companies in the steel industry. He has been associated with Kawasaki Steel Corporation and Toyota Motor Corporation, where he has contributed to various projects and innovations. His expertise in materials science has been instrumental in advancing the technology used in steel production.
Collaborations
Hanazawa has collaborated with several notable professionals in his field, including Akira Yasuda and Takaaki Hira. These collaborations have fostered innovation and have led to the development of new technologies in steel manufacturing.
Conclusion
Toshitake Hanazawa's contributions to the field of materials science, particularly through his patents and career in the steel industry, highlight his role as a significant inventor. His work continues to influence advancements in steel production and manufacturing processes.