Location History:
- Hyogo, JP (2002)
- Tsukuba, JP (2010)
- Kobe, JP (2004 - 2019)
- Osaka, JP (2013 - 2019)
- Tokyo, JP (2018 - 2024)
Company Filing History:
10 out of 929 
9 out of 1,101 
9 out of 3,557 
Years Active: 2002-2024
Title: Hirokazu Okada: Innovator in Austenitic Stainless Steel and Eddy Current Technologies
Introduction
Hirokazu Okada, an esteemed inventor based in Kobe, Japan, has made significant contributions to the field of materials science and engineering. With an impressive portfolio of 29 patents, he has advanced the development of specialized materials and components essential for various industrial applications.
Latest Patents
Among Okada's latest patents is the innovative austenitic stainless steel material designed for use in environments with elevated temperatures. This material exhibits exceptional sensitization resistance, ensuring durability even after prolonged operation at temperatures ranging from 400 to 700°C after welding with higher heat input. The specific chemical composition of this steel includes various elements, such as a maximum of 0.020% carbon, up to 25% chromium, and a precise balance of other elements, according to Formula (1).
Another noteworthy patent involves a rotor for an eddy current deceleration device, which serves to increase efficiency in braking systems. This cylindrical rotor is crafted from a complex mixture of components, with stringent requirements for its microstructure, ensuring a high percentage of martensite and bainite along with a specific density of carbides.
Career Highlights
Okada has worked with leading companies in the steel and manufacturing industry, including Sumitomo Metal Industries, Inc. and Nippon Steel & Sumitomo Metal Corporation. His corporate experience has not only enhanced his expertise but also allowed him to contribute to groundbreaking innovations.
Collaborations
Throughout his career, Okada has collaborated with other notable professionals, including Kazuhiro Ogawa and Hiroyuki Semba. These partnerships have facilitated the sharing of knowledge and the advancement of technologies within the field.
Conclusion
Hirokazu Okada stands out as a remarkable inventor whose work in austenitic stainless steels and eddy current technologies is shaping the future of materials engineering. His patents not only showcase his inventive spirit but also underline the importance of innovation in designing solutions for complex industrial challenges.