Company Filing History:
2 out of 196 
2 out of 1,883 
2 out of 929 
Years Active: 1988-1990
Title: Shigeo Nomura: Innovator in Ferritic Steel Technology
Introduction
Shigeo Nomura is a distinguished inventor based in Mito, Japan, known for his significant contributions to the field of materials science, particularly in the development of advanced ferritic steel. With a total of three patents to his name, Nomura has made remarkable strides in creating materials that enhance performance in high-temperature applications.
Latest Patents
Nomura's latest patents include a dispersion strengthened ferritic steel designed for high-temperature structural applications. This innovative steel exhibits excellent ductility and toughness, achieved through a heat treatment process that produces a tempered martensitic structure. The composition includes 0.05 to 0.25% by weight of carbon, 0.1% or less of silicon, 0.1% or less of manganese, 8 to 12% by weight of chromium, and a total of 0.1 to 4.0% by weight of molybdenum and tungsten, along with 0.02% or less of oxygen. Additionally, the steel contains homogeneously dispersed composite oxide particles comprising Y₂O₃ and TiO₂.
Another notable patent is for a dispersion strengthened ferritic steel cladding tube intended for use in nuclear reactors. This cladding tube features a double-layer structure, with the tube body made of dispersion strengthened ferritic steel containing 8 to 13% by weight of chromium. The inner surface is lined with ferritic steel that contains 18 to 30% by weight of chromium, ensuring excellent compatibility with mixed oxide fuel, high-temperature strength, and swelling resistance.
Career Highlights
Throughout his career, Shigeo Nomura has worked with prominent companies such as Doryokuro Kakunenryo Kaihatsu Jigyodan and Kobe Steel, Ltd. His work has significantly impacted the development of materials used in various high-performance applications.
Collaborations
Nomura has collaborated with notable colleagues, including Takanari Okuda and Itaru Shibahara, contributing to advancements in the field of materials science.
Conclusion
Shigeo Nomura's innovative work in the development of advanced ferritic steel has positioned him as a key figure in materials science. His patents reflect a commitment to enhancing the performance and safety of materials used in critical applications.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.