Location History:
- Ouji-cho, JP (2007)
- Kitakatsuragi, JP (2009)
- Osaka, JP (1999 - 2010)
Company Filing History:
5 out of 195 
2 out of 42,517 
1 out of 410 
Years Active: 1999-2010
Title: Ryokichi Hashizume: Innovator in High-Performance Materials
Introduction
Ryokichi Hashizume is a notable inventor based in Kitakatsuragi, Japan. He has made significant contributions to the field of materials science, particularly in the development of high-performance steels and superalloys. With a total of 5 patents to his name, his work has implications for improving efficiency in thermal power systems.
Latest Patents
One of Hashizume's latest patents focuses on high chromium ferritic heat resistance steel. This innovation aims to enhance electricity production efficiency in thermal power systems by utilizing turbine members made from high resistant steels. These steels are composed of various elements, including carbon, chromium, molybdenum, vanadium, niobium, tungsten, cobalt, boron, nitrogen, and optional rhenium, silicon, manganese, nickel, and copper. The use of these materials improves long-time creep strength, allowing for higher steam temperatures and better efficiency in electricity production.
Another significant patent involves nickel-based superalloys that exhibit excellent mechanical strength, corrosion resistance, and oxidation resistance. These superalloys consist of chromium, cobalt, tungsten, rhenium, tantalum, titanium, aluminum, ruthenium, hafnium, and nickel, among other elements. The careful composition of these materials ensures their effectiveness in high-stress environments, further advancing the capabilities of modern engineering.
Career Highlights
Throughout his career, Ryokichi Hashizume has worked with prominent companies, including Kansai Electric Power Co., Inc. His expertise in materials science has positioned him as a key figure in the development of advanced materials for energy applications.
Collaborations
Hashizume has collaborated with notable colleagues such as Masahiko Morinaga and Yoshinori Murata. These partnerships have contributed to the advancement of innovative technologies in the field.
Conclusion
Ryokichi Hashizume's contributions to materials science, particularly in high-performance steels and superalloys, have made a significant impact on the efficiency of thermal power systems. His innovative patents continue to influence the industry and pave the way for future advancements.