Location History:
- Toyanaka, JA (1977)
- Amagasaki, JP (1980)
Company Filing History:
Years Active: 1977-1980
Title: Masamichi Kowaka: Innovator in Austenitic Steel and Alloys
Introduction
Masamichi Kowaka is a distinguished inventor based in Toyanaka, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced austenitic steels and alloys. With a total of 2 patents, his work focuses on enhancing the resistance of materials to stress corrosion cracking, which is crucial for various industrial applications.
Latest Patents
Kowaka's latest patents include a low carbon Ni-Cr austenitic steel that boasts improved resistance to stress corrosion cracking. This innovative steel composition consists of less than 0.029% carbon, 1.5 to 4.0% silicon, 0.1 to 3.0% manganese, 23 to 45% nickel, 20 to 35% chromium, and a combination of vanadium, titanium, niobium, zirconium, and tungsten. This steel is particularly useful as a material for heat exchangers or pipes in nuclear reactors. Another notable patent is for an Ni-Cr-Fe alloy that is substantially in the single phase of austenite, also designed to improve resistance to stress corrosion cracking. This alloy contains 0.03 to 0.12% carbon, 0.2 to 4% silicon, 0.1 to 3% manganese, and a range of other elements, making it an excellent structural material for heat exchangers in nuclear reactors.
Career Highlights
Masamichi Kowaka is currently employed at Sumitomo Metal Industries, Inc., where he continues to innovate and develop new materials. His expertise in metallurgy and materials science has positioned him as a key figure in the industry, contributing to advancements that enhance the safety and efficiency of nuclear energy systems.
Collaborations
Kowaka has collaborated with Hisao Fujikawa, another expert in the field, to further explore the potential of advanced materials in various applications. Their joint efforts have led to significant advancements in the understanding and development of corrosion-resistant materials.
Conclusion
Masamichi Kowaka's contributions to the field of materials science, particularly in the development of austenitic steels and alloys, have had a profound impact on industrial applications. His innovative work continues to pave the way for safer and more efficient materials in critical sectors