Location History:
- Wakayama, JA (1977)
- Sakai, JP (1978 - 1982)
Company Filing History:
Years Active: 1977-1982
Title: Hajime Nashiwa: Innovator in Steel Plate Technology
Introduction
Hajime Nashiwa is a prominent inventor based in Sakai, Japan. He has made significant contributions to the field of materials science, particularly in the development of steel plates with enhanced properties. With a total of 4 patents to his name, Nashiwa's work has had a substantial impact on the industry.
Latest Patents
Nashiwa's latest patents include a method for producing steel plates that exhibit excellent resistance to hydrogen-induced cracking. This innovative process involves using a continuously cast slab with specific compositions of carbon, silicon, manganese, and aluminum. The method includes steps such as hot primary reduction rolling and heating at high temperatures to achieve the desired properties. Another notable patent focuses on a high-strength steel plate designed for arctic-grade line pipes. This steel plate incorporates nickel and calcium to improve low-temperature toughness, making it suitable for challenging environments.
Career Highlights
Hajime Nashiwa is associated with Sumitomo Metal Industries, Inc., where he has played a crucial role in advancing steel technology. His expertise in metallurgy and innovative approaches have led to the development of materials that meet the demanding requirements of various applications.
Collaborations
Nashiwa has collaborated with notable colleagues, including Akiyoshi Mori and Tsutomu Nagahata. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Hajime Nashiwa's contributions to steel plate technology demonstrate his commitment to innovation and excellence in materials science. His patents reflect a deep understanding of the complexities involved in creating advanced materials that meet modern demands.