Location History:
- Amagasaki, JP (2010 - 2015)
- Himeji, JP (2020)
- Tokyo, JP (2018 - 2022)
Company Filing History:
9 out of 3,557 
7 out of 1,101 
2 out of 929 Years Active: 2010-2025
Title: Nobusato Kojima: Innovator in Steel Technology
Introduction
Nobusato Kojima is a prominent inventor based in Tokyo, Japan, known for his significant contributions to the field of steel technology. With a total of 18 patents to his name, Kojima has made remarkable advancements in the manufacturing processes and properties of steel sheets.
Latest Patents
Kojima's latest patents include innovative developments such as a steel sheet and a method for manufacturing the same, as well as a plated steel sheet. The patented steel sheet features a predetermined chemical composition, with specific characteristics such as an average grain size of 15.0 μm or less at a ¼ depth position from the surface. It also boasts a tensile strength of 780 MPa or more. Another notable patent is for a hot-rolled steel sheet, which includes a microstructure comprising 99% or more of martensite by volume fraction, ensuring a tensile strength of 980 MPa or higher.
Career Highlights
Throughout his career, Kojima has worked with leading companies in the steel industry, including Nippon Steel Corporation and Nippon Steel & Sumitomo Metal Corporation. His work has significantly influenced the development of advanced steel products and manufacturing techniques.
Collaborations
Kojima has collaborated with notable colleagues such as Atsushi Tomizawa and Naoaki Shimada, contributing to various projects that have furthered the field of steel technology.
Conclusion
Nobusato Kojima's innovative work in steel technology has led to numerous patents and advancements in manufacturing processes. His contributions continue to shape the industry and inspire future innovations.