Location History:
- Chiba-Ken, JP (2010)
- Kitakyushu, JP (2004 - 2011)
- Tokyo, JP (2015 - 2023)
Company Filing History:
9 out of 3,562 
8 out of 1,102 Years Active: 2004-2025
Title: Kazuhisa Kusumi: Innovator in Steel Technology
Introduction
Kazuhisa Kusumi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of steel technology, holding a total of 16 patents. His innovative work focuses on enhancing the properties and applications of steel materials.
Latest Patents
Kusumi's latest patents include advancements in steel composition and processing. One notable patent describes a steel that features a substrate with a protective film. The chemical composition of this steel includes specific percentages of carbon, silicon, manganese, chromium, and copper, among others. This steel exhibits a tensile strength exceeding 1,500 MPa, making it suitable for high-performance applications. Another patent involves a plated steel sheet designed for hot stamping, which includes a plating layer with a high aluminum content and a surface film layer containing various elements to enhance its properties.
Career Highlights
Throughout his career, Kazuhisa Kusumi has worked with leading companies in the steel industry, including Nippon Steel Corporation and Nippon Steel & Sumitomo Metal Corporation. His expertise in steel technology has positioned him as a key figure in the development of advanced materials.
Collaborations
Kusumi has collaborated with notable colleagues such as Jun Maki and Masayuki Abe. Their combined efforts have contributed to the advancement of steel technology and innovation.
Conclusion
Kazuhisa Kusumi's work in steel technology exemplifies the impact of innovation in material science. His patents reflect a commitment to enhancing the performance and application of steel, making significant strides in the industry.