Location History:
- Katsuta, JP (1983)
- Hitachinaka, JP (1999)
Company Filing History:
2 out of 42,496 
1 out of 1 Years Active: 1983-1999
Title: Norio Morisada: Innovator in Heat Resisting Steel and Forged Articles
Introduction
Norio Morisada is a distinguished inventor based in Hitachinaka, Japan. He has made significant contributions to the field of materials science, particularly in the development of heat resisting steel and methods for producing large-size forged articles. With a total of 2 patents, Morisada's work has had a notable impact on various industrial applications.
Latest Patents
Morisada's latest patents include innovations in heat resisting steel and a method for producing elongated large-size forged articles. The heat resisting steel he developed features a metal structure that is entirely martensite phase, achieved through tempering after quenching. This steel composition includes specific weight percentages of elements such as carbon, silicon, manganese, nickel, chromium, molybdenum, tungsten, vanadium, niobium, cobalt, boron, nitrogen, oxygen, and hydrogen. Notably, it exhibits a creep rupture strength of 10 kgf/mm² or more at 650°C for 100,000 hours. The method for producing forged articles involves casting a molten alloy steel containing niobium and chromium in a metal mold, followed by forging the ingot to prevent the generation of eutectic NbC and sedimentary crystals.
Career Highlights
Throughout his career, Morisada has worked with prominent companies such as Hitachi, Ltd. and The Japan Steel Works, Ltd. His experience in these organizations has allowed him to refine his expertise in materials engineering and innovation.
Collaborations
Morisada has collaborated with notable colleagues, including Masao Shiga and Kishio Hidaka. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.
Conclusion
Norio Morisada's contributions to the field of materials science, particularly in heat resisting steel and forged articles, highlight his innovative spirit and dedication to engineering excellence. His patents reflect a commitment to advancing industrial applications and improving material performance.