Kozo Tsunoyama

Title: The Innovations of Kozo Tsunoyama

Introduction

Kozo Tsunoyama is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of materials science, particularly in the development of cold rolled steel sheets. With a total of nine patents to his name, Tsunoyama's work has had a considerable impact on the automotive industry.

Latest Patents

Tsunoyama's latest patents include innovations in cold rolled steel sheets that exhibit improved spot weldability. One of his patents describes an extra-low carbon cold rolled steel sheet that is particularly useful in automobiles. This steel sheet achieves enhanced spot weldability by combining and adding titanium (Ti), niobium (Nb), and boron (B) in specific amounts. This careful control of the fine Ti precipitate dispersed in the steel is crucial for achieving optimal performance. Additionally, the production conditions of the extra-low carbon steel sheet are meticulously controlled to ensure that they remain within specified reasonable ranges, further enhancing its weldability.

Another patent focuses on the method for producing these cold rolled steel sheets with improved spot weldability. Similar to his previous work, this method emphasizes the importance of combining Ti, Nb, and B in predetermined amounts to achieve the desired properties in the steel. The meticulous control of production conditions is again highlighted as a key factor in the success of this innovation.

Career Highlights

Throughout his career, Kozo Tsunoyama has worked with prominent companies in the steel industry, including Kawasaki Steel Corporation and Kawatetsu Wire Products Company Ltd. His experience in these organizations has undoubtedly contributed to his expertise and the development of his innovative patents.

Collaborations

Tsunoyama has collaborated with notable colleagues such as Takashi Obara and Saiji Matsuoka. These partnerships have likely played a role in the advancement of his research and the successful implementation of his inventions.

Conclusion

Kozo Tsunoyama's contributions to the field of materials science, particularly in the development of cold rolled steel sheets, have made a significant impact on the automotive industry. His innovative patents and collaborations reflect his dedication to advancing technology in this area.