This inventor holds 7 USPTO granted patents, plus 8 CIPO patents and 2 EPO patents. Top assignees: Sumitomo Metal Industries, Inc., Nippon Steel Sumitomo Metal Corporation, Toyota Jidosha Kabushiki Kaisha. Active years: 1996-2014.
Location History:
- Kobe, JP (1996 - 2014)
- Osaka, JP (2014)
Company Filing History:
6 out of 929 
1 out of 1,102 
1 out of 38,774 
Years Active: 1996-2014
Title: Mitsuo Miyahara: Innovator in Austenitic Stainless Steel
Introduction
Mitsuo Miyahara is a prominent inventor based in Kobe, Japan, known for his significant contributions to materials science, particularly in the development of advanced steels. With a total of seven patents to his name, he has made notable advancements in the field of hydrogen gas environments.
Latest Patents
Miyahara's latest patents include an austenitic stainless steel specifically designed for use in hydrogen gas atmospheres. This innovative steel composition includes, in mass percent, C: 0.10% or less, Si: 1.0% or less, Mn: 0.01 to 30%, P: 0.040% or less, S: 0.01% or less, Cr: 15 to 30%, Ni: 5.0 to 30%, Al: 0.10% or less, N: 0.001 to 0.30%, with the balance being iron and inevitable impurities. The steel exhibits a unique X-ray (111) integration intensity, which is five times that in a random direction or less, ensuring its reliability in demanding environments. Additionally, he has developed a low alloy steel for high-pressure hydrogen gas environments, which contains specific percentages of various elements to achieve a tensile strength of not less than 900 MPa.
Career Highlights
Throughout his career, Mitsuo Miyahara has worked with notable companies such as Sumitomo Metal Industries, Inc. and Toyota Motor Corporation. His work has significantly impacted the development of materials used in high-pressure applications, particularly in the automotive and energy sectors.
Collaborations
Miyahara has collaborated with esteemed colleagues, including Masaaki Igarashi and Hiroyuki Semba, contributing to the advancement of steel technology and its applications in various industries.
Conclusion
Mitsuo Miyahara's innovative work in the field of materials science, particularly in the development of specialized steels for hydrogen gas environments, showcases his expertise and dedication to advancing technology. His contributions continue to influence the industry and pave the way for future innovations.