Location History:
- Amagasaki, JP (2013 - 2014)
- Tokyo, JP (2016 - 2023)
Company Filing History:
5 out of 1,102 
2 out of 3,562 
1 out of 1,805 
Years Active: 2013-2023
Title: Masaki Ueyama: Innovator in Alloy Pipe Technology
Introduction
Masaki Ueyama is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced alloy pipes. With a total of 8 patents to his name, Ueyama's work has had a substantial impact on various industrial applications.
Latest Patents
Ueyama's latest patents include innovative designs for an austenitic alloy pipe and a Cr-Ni alloy seamless steel pipe. The austenitic alloy pipe boasts high yield strength, excellent stress corrosion cracking (SCC) resistance, and enhanced detectability in ultrasonic flaw detection. Its chemical composition includes specific percentages of carbon, silicon, manganese, phosphorus, sulfur, aluminum, copper, nickel, chromium, molybdenum, and nitrogen, with the balance being iron and impurities. The pipe is designed to have a grain size number of austenite crystal grain between 2.0 to 7.0 and a mixed grain ratio of not more than 5%. The tensile yield strength is not less than 758 MPa, and the outer diameter is not less than 170 mm.
In addition, Ueyama has developed a Cr-Ni alloy that exhibits high yield strength and resistance to sulfuric acid corrosion at elevated temperatures. This alloy's composition includes various elements such as silicon, manganese, chromium, nickel, molybdenum, tungsten, copper, and cobalt, ensuring its durability and effectiveness in harsh environments.
Career Highlights
Throughout his career, Masaki Ueyama has worked with notable companies, including Nippon Steel & Sumitomo Metal Corporation and Nippon Steel Corporation. His experience in these organizations has allowed him to refine his expertise in alloy development and manufacturing processes.
Collaborations
Ueyama has collaborated with esteemed colleagues such as Naoki Sawawatari and Masaaki Terunuma. These partnerships have fostered innovation and contributed to the advancement of materials technology.
Conclusion
Masaki Ueyama's contributions to the field of alloy technology are noteworthy and continue to influence various industries. His innovative patents and collaborations reflect his commitment to advancing materials science.