Company Filing History:
2 out of 42,508 
1 out of 2,333 
Years Active: 1985-1990
Title: Yasuhiko Mori: Innovator in Nickel Base Alloys
Introduction
Yasuhiko Mori is a notable inventor based in Mito, Japan. He has made significant contributions to the field of materials science, particularly in the development of nickel base alloys. With a total of 2 patents, his work has implications for various high-stress applications, including those in nuclear reactors.
Latest Patents
Mori's latest patents include a member made of nickel base alloy having high resistance to stress. This member is designed for use under stress in environments with temperatures below the creep temperature. The alloy consists of 15 to 25% chromium, 1 to 8% molybdenum, 0.4 to 2% aluminum, 0.7 to 3% titanium, 0.7 to 4.5% niobium, and the balance being nickel. It features an austenite matrix with precipitated phases that enhance its resistance to stress corrosion cracking. This innovation is particularly suitable for components subjected to pure water in nuclear reactors.
Another significant patent is for in-pile parts for nuclear reactors, made from an alloy that includes 0.01-0.2% carbon, 10-21% chromium, 1-4% titanium, 0.3-2% niobium, 0.1-2% aluminum, and the balance being nickel. The alloy's microstructure includes chromium carbides precipitated in the grain boundaries and a gamma prime phase within the grains, with an austenite matrix. This design aims to improve the performance and durability of reactor components.
Career Highlights
Throughout his career, Yasuhiko Mori has worked with prominent companies such as Hitachi, Ltd. and Hitachi Metals, Ltd. His experience in these organizations has allowed him to refine his expertise in materials engineering and innovation.
Collaborations
Mori has collaborated with notable colleagues, including Shigeo Hattori and Isao Masaoka. Their combined efforts have contributed to advancements in the field of alloy development and applications.
Conclusion
Yasuhiko Mori's contributions to the field of nickel base alloys and his innovative patents have made a significant impact, particularly in the nuclear industry. His work continues to influence the development of materials that withstand extreme conditions.