Location History:
- Kimitsu, JP (2017 - 2019)
- Tokyo, JP (2015 - 2021)
Company Filing History:
9 out of 1,101 
2 out of 3,554 Years Active: 2015-2021
Title: **Kazutoshi Ichikawa: Innovator in H-Section Steel Technology**
Introduction
Kazutoshi Ichikawa is an esteemed inventor based in Tokyo, Japan, known for his significant contributions to the field of materials engineering. With a robust portfolio of 11 patents, he has been particularly influential in the development of advanced H-section steel and its manufacturing process. His innovative work continues to shape the industry standards, especially for low-temperature applications.
Latest Patents
Ichikawa holds several notable patents, with his latest focusing on H-section steel and methods of producing it. One of his key innovations details an H-section steel characterized by a specific chemical composition, a flange thickness ranging from 25 to 140 mm, and defined material properties. The patent specifies that the average crystal grain diameter must be 38 micrometers or less, with a martensite-austenite area fraction of 1.2% or less in specific measurement planes. It also outlines that the yield strength must be at least 385 MPa and tensile strength at least 490 MPa in the rolling direction.
Another significant patent pertains to steel H-shapes designed for low-temperature service. This includes a chemical composition where the CEV (Carbon Equivalent Value) is 0.40 or less. The invention describes stringent requirements for microstructural composition, ensuring a minimum area ratio of ferrite and bainite and constraints on hard phase content. Effective grain sizes and the inclusion of titanium oxides are also highlighted to optimize performance under extreme conditions.
Career Highlights
Kazutoshi Ichikawa has garnered extensive experience through key positions at renowned companies, notably Nippon Steel & Sumitomo Metal Corporation and Nippon Steel Corporation. His career reflects a deep commitment to research and innovation, contributing to advancements that benefit both the industry and end-users. His expertise in materials engineering has led to various successful projects that have elevated manufacturing standards in the steel sector.
Collaborations
Ichikawa has collaborated with several esteemed colleagues, including Masaki Mizoguchi and Kazuaki Mitsuyasu. These partnerships have been pivotal in advancing research and developing new technologies, showcasing the collaborative spirit that drives innovation in the field.
Conclusion
Kazutoshi Ichikawa stands out as a pivotal figure in the realm of steel manufacturing and materials innovation. His patented technologies not only enhance the performance characteristics of H-section steel but also ensure safety and reliability in low-temperature applications. As industries continue to evolve, Ichikawa’s contributions will likely remain integral to future advancements in materials engineering.